Posts Tagged uranium

Gravity survey for uranium in Athabasca

Posted by on Thursday, 20 February, 2014
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Athabasca Nuclear Corporation  announces the completion of gravity surveys which have resulted in the identification of twenty-three (23) gravity low anomalies on the Western Athabasca Syndicate’s (the “Syndicate”) flagship Preston Lake Uranium Property (the “Property”). The identification process covers a portion of its’ Property and included a RadonEx survey (ground and water) to further refine targets in advance of a drill program scheduled to commence in March.

“As the largest tenure holder in the Western Athabasca Basin and having carried out the most significant regional target delineation program in the area, we are keen to commence further exploration through drilling on some of the gravity low anomalies identified to-date,” stated Ryan Kalt, Chief Executive Officer (Interim) of the Corporation.

Preston Lake Property Map and Regional Exploration Corridors:

http://www.athabascanuclear.com/wp-content/uploads/2014/02/Patterson_Lake_Regional_Map.pdf

Interpretation of the gravity data by Phil Robertshaw, P.Geo., has successfully delineated gravity low anomalies associated with previously identified high-potential exploration corridors defined by structure, magnetic lows, conductors, favorable geology and geochemistry. Gravity is a defining tool for exploration for uranium in the Athabasca Basin and was a key mechanism for vectoring in on the recent discovery made by NexGen at the Rook 1 Project.

 

Hydrothermal fluids associated with high grade uranium deposits will cause extensive alteration of the host rock, resulting in displacement and removal of minerals/elements, creating porosity and subsequent density contrast. This density contrast will be expressed as a gravity low anomaly and is a prime drill target when qualified by other coincident indicators of uranium mineralization such as geochemistry and radon.

Preston Lake Property - Gravity Survey Coverage:

http://www.athabascanuclear.com/wp-content/uploads/2014/02/Preston_Lake_Exploration_Update.jpg

In addition, several of the Syndicate’s gravity low targets have been further refined using a proprietary RadonEx survey which has been instrumental in assisting with numerous discoveries in the Athabasca Basin region. The Syndicate is carrying out a ground EM survey to further refine conductor trends and pinpoint drill pad locations. Details concerning the upcoming drill program shall be provided in the near-future.

The 246,643 hectare Preston Property is the largest individual property proximal to Fission Uranium Corp.’s Patterson Lake South (“PLS”) high-grade uranium discovery and the recent discovery made by NexGen Energy (“NexGen”) on the Rook 1 Project . The Syndicate is the largest land tenure holder in the southwest Athabasca Basin region including properties strategically situated to the southwest and to the northeast of the PLS and NexGen discoveries.

About the Preston Lake Property:

The 246,643 hectare Preston Lake Property is the largest land package proximal to the Patterson Lake South (PLS) high-grade uranium discovery, owned by Fission Uranium Corp. The Syndicate continues to employ a systematic, proven exploration methodology that has led to numerous uranium discoveries in the region and throughout the Athabasca Basin. This has been very effective in identifying numerous high-quality targets with similar geological features and exploratory indicators also present at the nearby PLS discovery and in other deposits in the Athabasca Basin. Management cautions, mineralization present on proximal properties is not necessarily indicative of mineralization on the Syndicate’s Property.


Multiple conductive anomalies within the Patterson Uranium Prospect

Posted by on Friday, 14 February, 2014

Makena Resources Inc. reports that the initial data (VTEM survey) has returned results that show multiple conductive anomalies within the Patterson Uranium Prospect. Two distinctive anomalous zones were encountered. The southern zone has three specific targets within the zone. The north target is a NW trending zone associated with a break in the formation in the direct vicinity of the conductive anomaly. A historical drill hole shows basement to be relatively shallow at 154 metres depth within these zones.

Karl Schimann stated, “We are encouraged by the preliminary data. We clearly have multiple conductive targets that we plan to aggressively follow up on shortly. Of particular note is the relationship of the conductive zones associated with the breaks in the magnetic pattern. These breaks are often associated with uranium mineralization. We look forward to potentially confirming these anomalies by ground EM and follow by drilling to determine if these targets have associated uranium mineralization.”

MKN’s Patterson Uranium Prospect, consists of three claim blocks totaling 6,687 hectares (16,524 acres), which are all located in the Athabasca Basin. The west block directly borders the recent discovery on the Patterson Lake South Property by Alpha Minerals Inc. and Fission Energy Corp. The other two blocks are in the direct vicinity of the discovery.


VTEM Max Survey Commenced by TAD on Uranium Prospect in the Athabasca Basin

Posted by on Wednesday, 29 January, 2014

 

 

 

TAD Mineral Exploration Inc.  announces that the initial work program consisting of a VTEM max program over its uranium block in the Patterson Lake Area of the Athabasca Basin, Saskatchewan has commenced. This survey will assist in locating the basement indicators on the property.

James Nelson, a director of TAD stated, “We are pleased to be underway on this project. When you consider the exposure that the Athabasca Basin has garnered, especially in the light of the recent significant new discovery made by Fisson at the Patterson Lake South property, we are excited to be active on a prospect in this uranium district.”

According to Aeroquest, “The VTEM max or Versatile Time Domain Electro Magnetic system is the most innovative and successful airborne electromagnetic system to be introduced in more than 30 years. The proprietary receiver design using the advantages of modern digital electronics and signal processing delivers exceptionally low-noise levels. Coupled with a high dipole moment transmitter, the result is unparalleled resolution and depth of investigation in precision electromagnetic measurements. The system was designed to be field configurable to best suit a large variety of different geophysical requirements from deep penetration to optimizing the discrimination within a narrow range of resistivity values.”

TAD has added three new prospects. One new prospect is located in the world renowned uranium district of the Athabasca Basin in Saskatchewan in close proximity to the Alpha/ Fission Patterson Lake South discovery. Another new prospect is the Iskut copper/gold prospect near Colorado Resource’s ‘North Rok’ discovery in British Columbia. A third new project is a hydrothermal graphite prospect bordering Zenyatta Ventures Ltd.’s recently discovered deposit.


Radon Survey Commences to Prioritize Untested Conductors for uranium in Athabasca basin

Posted by on Monday, 13 January, 2014

FISSION URANIUM CORP. announces it has commenced a new large coverage, $500,000 Radon in lake survey at its 100% owned Patterson Lake South (PLS) property in Canada’s Athabasca Basin. The survey is following up on ten geophysics-identified basement electromagnetic (EM) conductors. Fission’s lake bottom technique survey, conducted in the winter beneath the ice, and analysis has proved key in identifying radioactive anomalies and assisting accurate drill targeting in the previous two drill programs at PLS (>86% mineralization hit rate). To date, Fission’s highly successful Radon survey and analysis has been used systematically on only 1 EM conductor (PL3B conductor) on a property which hosts over 100 such basement EM conductors.

The ten conductors are located in 4 separate areas (Area A, B, C and D) beneath Patterson Lake and Forest Lake.

Ross McElroy, President, COO, and Chief Geologist for Fission, commented,

Our lake bottom, winter radon survey and analysis techniques were critical elements in targeting the first strike holes at six of the seven zones and numerous successful step-outs. PLS is a hugely prospective property with a multitude of conductors and just as our understanding of the geology has evolved in the past two exploration programs, so too has our use of Radon survey technology. With approximately 20% of the upcoming drilling focusing on exploring new areas of interest, we expect this radon survey to play an important role in targeting and prioritizing new holes.”

News Highlights

  • 10X expansion of radon survey coverage at PLS
  • Areas to be targeted include a total of ten high priority EM conductors
  • Survey has already commenced and is expected to take five to six weeks to complete
  • Fission’s use of radon has been instrumental in targeting the first holes at six zones found to date and successfully hitting step outs as large as 390m
  • A total of 2,300 samples will be taken from 4 areas covering discrete identified EM conductors. Areas A, B and C cover EM conductors within Patterson Lake. Area B covers EM conductors within Forrest Lake, located immediately to the south of Patterson Lake – all areas are on the PLS property
  • Forest Lake Radon Survey Area

An EIC (Electret Ionization Chamber) survey to measure radon, will be conducted by RadonEx Exploration Management, of St Lazare, Quebec. The survey will comprise primarily samples of measurements of radon in water.

Area A

Area A is comprised of a group of 4 main north-east trending EM conductors, including the PL3B EM conductor (which is associated with the high-grade “R” zones). The upcoming survey will cover 3 parallel interpreted time domain electromagnetic (TDEM) conductors, each discrete conductor ranging in strike length between 1.0km – 1.9km strike length. A total of 743 samples will be collected.

Area B

Area B is located approximately 2 to 3km north-east of the PL-3B conductors. The survey will cover a single 1.2km long north-east trending EM conductor. A total of 231 samples will be collected.

Area C

Area C encompasses two discontinuous north-east oriented and segmented airborne EM conductors (VTEM). The northern conductor is interpreted to be segmented in 2 sections, of strike length of 1.2km and 0.3km respectively. The southern conductor is similarly segmented in 2 sections of 0.7km and 0.3km each. A total of 305 samples will be collected.

Area D

Area D encompasses three intermittent north-east trending VTEM conductors. Two conductors cover a strike length of 4.1km, while the 3rdcovers a length of 1.3km. A total of 1,031 samples will be collected.

Patterson Lake South Property

The 31,039 hectare PLS project is 100% owned and operated by Fission Uranium Corp. PLS is accessible by road with primary access from all-weather Highway 955, which runs north to the former Cluff Lake mine and passes through the nearby UEX-Areva Shea Creek discoveries located 50km to the north, currently under active exploration and development.

 


Gravity, EM, radiometry and magnetic features for uranium exploration in Athabasca

Posted by on Wednesday, 4 December, 2013

 Aldrin Resource Corp. (“Aldrin”) announces completion of the ground gravity survey on the Triple M Property in northern Saskatchewan. Preliminary analysis has identified gravity anomalies coincident with our already identified priority drill targets that are consistent with bedrock uranium mineralization. Aldrin’s Triple M Uranium Property is located adjacent to and southwest of Fission-Alpha’s Patterson Lake discovery property, in the newly prospective southwestern region of the Athabasca Basin.

The gravity survey was completed by MWH Geo-Surveys Ltd. (“MWH”), based in Kelowna, British Columbia, who collected data at 871 unique stations. The survey covered two parallel strong bedrock conductors previously identified from the Geotech VTEM airborne geophysical survey, and associated surface radon anomalies. Gravity anomalies were identified over the same portions of the bedrock conductors previously highlighted by radon anomalies. The gravity anomalies are relative lows reflecting the dissolution and removal of rock mass by the same basinal fluids that may also precipitate uranium. Such extensively altered gravity lows are associated with high-grade uranium mineralization in other parts of the Athabasca Basin, and are a strong addition to our already prioritized drill targets.

Aldrin drill targets

Aldrin has developed high-priority drill tar gets on the Triple M Property. The targets are now characterized by coincident gravity lows, basement structures, conductive anomalies, radon highs, and relative magnetic lows. The return of positive results from multiple independent geophysical, geochemical and geological data sets strengthens Aldrin’s belief in the importance of the Triple M Property drill targets.

Aldrin’s CEO Johnathan More states, “We are becoming more confident in our drill targets of the Triple M Property, because each survey method we employ yields coincident anomalies consistent with uranium mineralization below. Now we have drill targets supported by coincident gravity lows, radon highs, linear bedrock conductors and geological mapping.”

 


Continuing of geophysical investigations at Patterson Lake for uranium

Posted by on Tuesday, 17 September, 2013

Forum Uranium Corp. announces further exploration of its 100% owned Clearwater Project on trend and immediately adjacent to the southwest of the Alpha Minerals/Fission Uranium Patterson Lake South discovery. Forum conducted ground radiometric prospecting, lake sediment geochemical surveys and soil gas radon surveys in late August/early September.

As a result of this program, further prospecting of airborne radiometric anomalies and expansion of the radon survey will take place. The radon survey has outlined a number of anomalous zones on two grids immediately southwest of the Alpha/Fission claim boundary. These results are very encouraging so the grids will be expanded to cover areas with airborne electromagnetic conductors on strike with the Patterson Lake South conductive trend. Upon completion of this follow-up program, Forum will conduct ground electromagnetic surveys this fall and ground gravity in early winter to outline targets for drilling in late January 2014.


The uranium “BOULDER-FINDING” technology and the application results

Posted by on Thursday, 29 August, 2013

FISSION URANIUM CORP. and Special Projects Inc (SPI, Calgary), are pleased to announce the filing of a patent application for an invention entitled “System And Method For Aerial Surveying Or Mapping Of Radioactive Deposits”. The invention relates to an airborne system and method for surveying a geographic area to detect and map the locations of radioactive geological deposits, such as boulders and clusters of rock.

The invention results in a particularly high-resolution survey and is an improvement over known airborne surveying methods for radioactive deposits. The invention led Fission to discover the high-grade uranium boulder field at its Patterson Lake South (PLS) property in Canada’s Athabasca Basin, home to the world’s richest source of high-grade uranium.

Ross McElroy, President, COO and Chief Geologist of Fission Uranium, commented,

Using our patent-pending survey system, enables us to quickly and effectively explore large areas for radiometric anomalies. Our system has proved to be incredibly sensitive and accurate in locating anomalies of interest and provides a “leading-edge” ability to find occurrences of radioactive soil, boulders and outcrop at surface that may represent uranium.”

Radiometric surveys are regularly employed in exploration to detect and map natural radioactive emanations (from uranium, thorium and potassium), from rocks and soils. Meteorological conditions, the topography of the survey area, the influence of the Earth’s cosmic environment, the height of the sensor above ground and the speed of the aircraft are some of the variables which affect radiometric measurements. The invention resulting from the collaboration between Fission’s technical team and SPI is particularly sensitive to addressing these variables.

Prior to the Fission/SPI invention, airborne prospecting for radioactive minerals has been generally carried out by flying a fixed wing aircraft equipped with large detectors relatively high altitudes and high speeds over a geographical region to be surveyed. However, data collected in such a manner often does not allow for detection of localized geological deposits such as boulders and clusters of rock due to the large footprint of the measurement and the resulting background-to-boulder signature ratio. Additionally, many legacy systems, which used a combination of towed magnetometer sensors and large detector systems, lacked the electronic navigation and data acquisition tools required to collect and compile the information in a manner required to detect localized geological deposits.

The Fission/SPI invention utilizes a fixed wing aircraft using at least one radiation detector element to fly at an ideal height and speed over a geographic area and store the radioactive signal data. Furthermore utilizing advanced processing technology to map the radiation signal data to accurately identify and flag high priority points, which in the case for PLS resulted in the discovery of the high-grade uranium boulders.

FISSION URANIUM CORP. announces the discovery of two significant and strongly radioactive uranium source anomalous regions on its 100% owned North Shore property in the Athabasca Basin, Alberta. The Northern and Southern anomalies occur within the south-central part of the project area near the southern boundary. The discovery was made using Fission and Special Project Inc’s (‘SPI’) high resolution magnetic and radiometric airborne survey technology which is currently patent-pending (see news release July 16, 2013).

The Northern anomalous region occurs within a 1.5km x 0.5km area and contains several parallel trends up to 300m.  The Southern anomaly is located approximately 7km to the SW of the northern anomaly and is characterized by being narrow (1 to 10m wide) and can be traced for up to 3km.

Ross McElroy, President, COO, and Chief Geologist for Fission, commented,

We are very encouraged by this strongly radioactive discovery, particularly as we used the same technology to locate the boulder field at Patterson Lake South (PLS). While the expansion of our PLS discovery is our main task, following up these new results at our North Shore property is also a priority.

In August 2013, using a fixed wing aircraft, SPI flew a 12,257 line km high resolution airborne magnetic and radiometric survey at 50m line spacing over the entire North Shore project.  The radiometric system uses a calibrated gamma spectrometer which is able to differentiate between uranium, thorium and potassium and also determine the relative concentration of each element.

The radiometric data was collected and processed and anomalies were picked based on elevated total counts with correlated elevated uranium concentrations.  The width and responses of the peaks indicate that some of the larger anomalies present are likely to be part of the outcrop/sub crop as opposed to boulders.  This is indicated by a generally wider anomaly which is easily seen on multiple lines.


Airborne EM and radiometric surveys for Saskatchewan uranium exploration

Posted by on Thursday, 8 August, 2013

Noka Resources Inc. announces that the members of the Western Athabasca Syndicate; Noka Resources Inc.Skyharbour Resources Ltd., Athabasca Nuclear Corp., & Lucky Strike Resources Ltd.(“the Syndicate”) have completed large-scale VTEM plus and radiometric geophysical surveys on the Western Athabasca Syndicate Project located near Alpha Minerals’ and Fission Uranium’s  Patterson Lake South (“PLS”) uranium discovery. The original airborne coverage was expanded to provide for the infill and extension of conductive anomalies and structural features identified by a preliminary review of the geophysical data. Based on this initial encouraging data, the Syndicate has elected to immediately commence the second phase of its summer program consisting of follow-up field work and ground-truthing of geophysical targets.

Western Athabasca Syndicate Project Claims Map: http://www.nokaresources.com/images/NX-Western-Basin-Syndicate.jpg

Completion of Regional Airborne Geophysical Survey:

A total of 4,840 line kilometres was flown for the VTEM plus time domain survey with an additional 4,400 line kilometres flown for the radiometric survey all of which was on the Syndicate’s Preston Lake Property. The VTEM plus system has been used successfully to locate basement conductors similar to the structures that host the high-grade uranium discoveries at the nearby PLS project. The high resolution radiometric survey was flown to locate uranium boulder trains, in-situ uranium mineralization and alteration associated with uranium mineralization which is what ultimately led to the PLS discovery by Alpha and Fission. Phil Robertshaw (P.Geo., Saskatchewan) is reviewing the collected data and will be providing detailed interpretation of the VTEM plus and radiometric surveys shortly.

Western Athabasca Syndicate Airborne Survey Coverage: http://nokaresources.com/images/NX-Geophysics-coverage.jpg

The areas flown include two blocks in the northern part of the Preston Lake Property. The Preston Lake South block is contiguous with Fission Uranium and NexGen Energy and includes a large area of partially exposed pre-Cambrian shield rocks. The Preston Lake West block claims are contiguous with claims controlled by Aldrin Resources and Forum Uranium. The claims are underlain by Phanerozoic rocks (limestone and sandstone) similar to the PLS discovery area. At Fission and Alpha’s PLS high-grade discovery it is interpreted that the uranium has been mobilized along the fault zones and has been concentrated in the sandstone under the limestone. A review of historic data on the Preston Lake Property has identified a sample collected by the Geological Survey of Canada which returned a value of 5.4 ppm U3O8, considered to be significant in an area with a background uranium value of 1 ppm U3O8. This high U3O8 value may indicate either the down-ice glacial transport of uranium boulders from source or an in-situ source of uranium. For comparison, the highest value down-ice from the PLS discovery is 3.2 ppm U3O8. Management cautions that past results or discoveries on proximate land are not necessarily indicative of the results that may be achieved on the Western Athabasca Syndicate Project.

Commencement of Field Program at Preston Lake Property:

The initial data and results from the airborne surveys have led the Syndicate to expedite the planned summer field program with a number of high-priority targets at the Preston Lake Property being the focus of the work. A sophisticated targeting matrix is being used to further identify and prioritize areas for ground-based follow-up. Field work will include ground-truthing of high-priority geophysical targets using water and soil radon sampling, biogeochemistry, geochemical lake sediment and soil sampling, prospecting, and scintillometer surveying. The Syndicate will employ a systematic, proven and cost-efficient exploration methodology that has led to numerous uranium discoveries in the region and throughout the Athabasca Basin. By the end of this summer’s field program, a total of $1.5 million will be spent in exploration on the project between airborne geophysical surveys and follow-up ground work.

Uranium and the Athabasca Basin:

The Athabasca Basin of northern Saskatchewan hosts the world’s largest and richest high-grade uranium deposits accounting for just under 20% of global primary uranium supply. Athabasca uranium deposits have grades substantially higher than the world average grade of about 0.1% U3O8. The Patterson Lake area has received escalating exploration attention and claim acquisition activity as a result of the new, shallow discoveries made by Alpha and Fission which includes the recently reported drill interval of 6.26% U3O8 over 49.5 metres in drill hole PLS 13-053. This mineralized zone is located approximately 400 metres to the northeast of discovery hole PLS 12-024 which returned 2.49% U3O8 over 12.5 metres. Consistent high grade, near surface U3O8 assays from Alpha and Fission demonstrate the potential for high grade uranium mineralization on the margins of the western side of the Athabasca Basin. There are still areas in the Athabasca region that are highly prospective and underexplored for high grade uranium as illustrated by Alpha’s and Fission’s recent discovery.


Airborne EM-Magnetic, ground DC and gravity initiated expanding of the drilling program in Athabasca

Posted by on Wednesday, 24 July, 2013

NexGen Energy Ltd announces it has entered into a contract with GDC Drilling for diamond core drilling at its 100% owned Rook I project to commence mid-August 2013.

Highlights

  • 3,000m planned program doubles the size of previous planned program of 1,500m (see news release 15 May 2013),
  • Two rigs to test several land-based targets identified by VTEM and Gravity Surveys in the southwestern section of Rook I,
  • Rook 1 is immediately adjacent to the high grade Patterson Lake South discovery owned 50/50 by Fission Uranium Corporation and Alpha Minerals Inc.

The 3,000m program (approximately 20 holes) will incorporate two rigs and focus upon target areas in the southwestern section of Rook I identified by VTEM airborne and ground gravity surveys. The targets are all land based, at shallow depth and immediately northeast to the high-grade uranium mineralization discovered on Patterson Lake South. The northeast trending mineralized conductor corridor is interpreted to extend into the southwestern zone of Rook I.

The recently completed ground DC resistivity survey covering the southwestern area of Rook I will further assist in refining previously identified drilling targets.

Leigh Curyer, NexGen’s CEO commented “The 100% owned Rook I is an exciting project for NexGen and our investors. NexGen has doubled the size of the drill campaign; the land-based targets are shallow and are only some of a number of highly prospective identified target areas on the property. We look forward to commencing this campaign in mid-August.”

http://media3.marketwire.com/docs/NXE_Figure1-Figure2.pdf.

Rook I is located directly to the northeast of the Patterson Lake South property being explored by Fission Energy Corp. and its joint venture partner Alpha Minerals Inc. who recently reported results including a reported intersection of 12.5M @ 2.49% U3O8 with assays to 11.1% U3O8 at PLS (holes PLS12-024, from 65.5m downhole; 05 Dec12 FIS press release).

Untested conductors on the Rook I property lie directly on strike and 3km to the northeast of the mineralised intercepts reported by Fission Energy Corp.


Airborne EM and radiometry in Western Athabasca

Posted by on Tuesday, 23 July, 2013

Noka Resources Inc. announces that the members of the Western Athabasca Syndicate; Noka Resources Inc. Skyharbour Resources Ltd. , Athabasca Nuclear Corp., & Lucky Strike Resources Ltd.(“the Syndicate”) have completed an additional 720 line kilometres to the 4120 line kilometre VTEM plus time domain geophysical survey on the Western Athabasca Syndicate Project. The additional coverage consisted of infill and extension of conductive anomalies and structural features identified by a preliminary review of the geophysical data.

The Syndicate is also pleased to announce that the high resolution airborne radiometric survey on the Western Athabasca Syndicate Project has started. The contract was awarded to Goldak Airborne Surveys who will be collecting radiometric data be using a digital acquisition system that is proprietary to Goldak. A total of 4400 line kilometres at 200 metre line spacing will be flown using a 50.4 liter crystal volume detector to locate uranium boulder trains, in-situ uranium mineralization and alteration associated with uranium mineralization systems.

The Syndicate is using Phil Robertshaw (P.Geo., Saskatchewan) to review the VTEM plus and radiometric data and provide detailed interpretation when the surveys are completed.

Western Athabasca Syndicate Project claims map


Airborne Magnetic and Electro Magnetic Survey at Patterson Lake for uranium

Posted by on Wednesday, 29 May, 2013

Aldrin Resource Corp. announces the immediate commencement of a high-resolution airborne magnetic and electromagnetic geophysical survey covering the Triple M Property (“Property”). The survey is being flown by Aeroquest Airborne, a division of Geotech, using their advanced helicopter-borne, time domain electromagnetic VTEM plus system and magnetic gradiometer. The survey will cover all of the Triple M Property at 200 m line spacing, and is expected to begin flying today. Flying the survey over the Property is anticipated to take 6 to 9 days.

The survey is designed to detect conductors and magnetically defined structures that may define targets for uranium mineralization. Such conductive and magnetic anomalies may extend the mineralized structures associated with Alpha Minerals Inc and Fission Uranium’s (“Alpha/Fission”) reported high-grade Patterson Lake discovery 10 km east on the adjacent property to the Triple M Property. Alpha/Fission reportedly used a similar Aeroquest VTEM airborne survey to define conductors associated with their high-grade intersections on their Patterson Lake property, based on information contained in Alpha’s recently released independent technical report available on SEDAR (dated April 23, 2013). Some maps in that technical report suggest that VTEM conductors extend to the contiguous edge of the Triple M Property with the Patterson Lake discovery property. Geology is indicating that the conductors and structures may extend onto the Triple M Property from the Patterson Lake discovery and this will be confirmed by the airborne survey.

Aldrin’s Triple M Uranium Property is located in the Patterson Lake Area of Saskatchewan. The property consists of 6 claim blocks totalling 12,001 ha and is bordering the Fission Uranium Corp./Alpha Minerals Inc. discovery at Patterson Lake 9 km south to 11 km west of their recent discovery.

The Property is located just outside the southwestern margin of the Athabasca Basin, which currently accounts for 20% of the world’s total uranium production. The Athabasca Basin’s uranium production comes primarily from Cameco’s high-grade (16.5% U3O8 after allowance for dilution) McArthur River Uranium Mine, which alone produced 14% of the world’s supply in 2011. Other major current and past-producers from the Athabasca Basin include the Cluff Lake, Key Lake, Maclean Lake and Rabbit Lake Uranium Mines, as well as the soon-to-open Cigar Lake Project (Fig. 1). The Triple M Property extends from 400 m to 20 km south of the Athabasca Basin margin. The Property is adjacent to Fission Energy Corp’s and Alpha Minerals Inc.’s Patterson Lake South JV property (“Fission” or “Fission / Alpha JV”), where Fission recently announced discovery of high-grade uranium mineralization (Fission NR dated December 5, 2012) in basement 5 km southwest of the Athabasca Basin margin . The Triple M Property’s location adjacent to the Athabasca basin margin, and near the recent high-grade uranium discovery at Patterson Lake has motivated Aldrin to commence uranium exploration.


Airborne Geophysical Survey Along Trend Of The Alpha/Fission Patterson Lake Discovery

Posted by on Tuesday, 28 May, 2013

Forum Uranium Corp. announces the commencement of an electromagnetic and magnetic survey of its 100% owned Clearwater Project. Forum’s claims, staked immediately adjacent to the southwest of the Alpha Minerals/Fission Uranium claim boundary is interpreted to be on strike with the fertile conductive trend that hosts the high-grade uranium discovery on the Patterson Lake South project. Forum’s property lies only four kilometres southwest of the high grade boulder train on the Alpha/Fission property.

Figure shows historical electromagnetic trends, a magnetic map and lake sediment geochemical surveys in the Patterson Lake South area. The electromagnetic (EM) surveys stopped at Forum’s claim boundary, however EM conductors from these historic surveys trend in the direction of Forum’s ground. Of particular note is that the highest lake sediment value in the area lies on Forum’s southwest claim with a value of 8.3 ppm U. Most values are between 1 to 3 ppm U and the lake sediment sample taken down-ice from the Patterson lake boulder field was 3.2 ppm U.

An Aeroquest Airborne helicopter-borne time domain electromagnetic survey with Bfield-VTEM Plus and magnetic gradiometer system will be flown on 200 metre line spacings for a total of 647 line kilometres over Forum’s 99 square kilometre property. The VTEM Plus system has been chosen for its depth penetration and vertical/spatial resolution of graphitic conductors that are prospective hosts for unconformity-style uranium deposits.

This is the first phase of this year’s summer exploration program. Plans are to conduct an airborne radiometric survey and a detailed prospecting survey to search for any boulder fields similar to that found on the Alpha/Fission ground.


Advances in Airborne and Ground Geophysical Methods for Uranium Exploration

Posted by on Tuesday, 30 April, 2013

IAEA (International Atomic Energy Agency) has published a book “Advances in Airborne and Ground Geophysical Methods for Uranium Exploration”.

“Due to growing global energy demand, many countries have seen a rise in uranium exploration activities in the past few years, and newly designed geophysical instruments and their application in uranium exploration are contributing to an increased probability of successful discoveries. This publication highlights advances in airborne and ground geophysical techniques and methods for uranium exploration, succinctly describing modern geophysical methods and demonstrating their application with examples.”

Download..


IP-Resistivity Survey for Uranium in Athabasca Basin

Posted by on Tuesday, 2 October, 2012

Purepoint Uranium Group Inc. has released the results of this summer’s geophysical survey at its 100% owned Turnor Lake Project in Saskatchewan’s Athabasca Basin. The induced polarization survey has moved the exploration of this property further north, covering the high-priority Anvil South uranium target area.

____________________

-     The induced polarization (IP) survey was conducted over the Anvil South grid with the purpose of outlining possible low apparent resistivity chimneys (LARCs) in the sandstone. LARCs are considered to be excellent drill targets when found within a favourable geologic setting as they represent potential zones of hydrothermal alteration.

The IP survey data is of high quality, free of noise and aligns well with historic drilling data, unconformity depth, and overburden thickness,” said Roger Watson, Purepoint’s Chief Geophysicist. “Numerous geophysical LARCs have now been interpreted; many of them correlating with an untested, well-defined electromagnetic conductor.”

Highlights:

  • Low apparent resistivity chimneys (LARCs), possible zones of hydrothermal alteration, have been outlined within the Anvil South zone and correspond with untested EM conductors;
  • The resistivity survey successfully identified a LARC that corresponds with altered sandstone intersected by historic hole OD-1 that also returned 468 ppm U over 3.4 m;
  • The geophysical results collected by Purepoint at Anvil South, which includes resistivity, gravity, and highly detailed airborne electromagnetics and magnetics, have been compiled with all available historic data identifying five new high priority drill targets;
  • A strong geochemical anomaly of uranium, nickel and cobalt was outlined at the Klaproth South target in 2011 and verified by re-sampling in 2012.

Anvil South

The Anvil South grid covers over four kilometers of electromagnetic (EM) conductors that were outlined by a VTEM airborne survey in 2006. The EM conductors show significant offsets interpreted to be caused by faulting. Purepoint conducted a gravity survey over the Anvil South grid in 2008 but has not yet drill tested geophysical targets in this area.

During August 2012, over thirty line-kilometers of IP surveying was completed at Anvil South by Peter E. Walcott & Associates Ltd. of Vancouver, BC. The data was inverted by Purepoint using IP inversion software developed by the University of British Columbia. The IP survey was successful in that well defined resistivity “chimneys” (LARCs) were identified in the sandstone. The Anvil South LARCs have now been plotted in relation to resistivity, gravity, EM conductors and magnetics and five priority drill targets have been identified.

The historic drill hole OD-1, drilled at Anvil South by the Saskatchewan Mining Development Corp. in 1985, intersected 3.4 m of 468 ppm U within a highly altered graphitic pelite immediately below the unconformity. Anomalous concentrations of arsenic, nickel and cobalt were associated with the alteration encountered in the OD-1 drill hole.

Turnor Lake

The Turnor Lake Project is 100% owned by Purepoint. This 9,705 hectare property covers graphitic electromagnetic (EM) conductors that are directly associated with high grade uranium showings on adjoining properties, namely Cameco’s La Rocque occurrence (up to 33.9% U3O8 over 5.5 m) to the west and Areva’s HLH-50 intercept (5.2% U3O8 over 0.38 m) located to the south. The project lies in close proximity to several uranium deposits, including Roughrider, Midwest Lake, McClean Lake and Eagle Point, and has a shallow depth to the unconformity of less than 200 metres in most areas.

A series of detailed geophysical surveys have been conducted on the property since November 2006 and numerous drill targets, including EM conductors and structurally complex areas having evidence of intersecting structures, remain untested. Drill targets have now been prioritized with the completion of the 3D Targeting Workflow Process by Mira Geoscience.


Ground/airborne geophysics evaluation for uranium mineralization

Posted by on Thursday, 1 December, 2011

Unity Energy Corp. announces that it has completed evaluation of ground/airborne geophysics and historical drilling in and around the Lampin Lake Project and has identified a high value target, dubbed the Shamus Zone. The Lampin Lake Project consists of a single 500ha disposition located on the eastern margin of the Athabasca basin. The Project lies in the Waterbury Lake district, ~16km southeast of Hathor’s Roughrider discovery. It is bordered by claims held by UEX to the east (Hidden Bay Project) and Cameco on all other sides.

To view the map associated with this press release, please click on the following link: http://media3.marketwire.com/docs/u1129.jpg

The Shamus Zone is characterized by a 500-750m wide northwest trending Bouguer Gravity low feature, beginning at Cameco’s Q12A zone and ending several kilometers on the southwest corner of the Lampin Lake claim boundary. The gravity anomaly is roughly perpendicular to the Telephone Fault, may indicate a region of alteration, some of which has been subject to desilicification. The Telephone fault is interpreted as the primary control of this zone. Within gravity anomaly, the primary target is a series of subtle conductors coincident with magnetic lows, which appear to be related to extensions of Cameco’s Q12A conductor series. The subtle conductors were identified through detailed interpretation of VTEM data, acquired by Unity in a survey completed in 2011.

Cameco’s Q12A zone (some 500m to the south) shows areas of intermittent uranium mineralization at the unconformity and has been interpreted as the outlying edge of an alteration zone. Cameco and Asamara Oil have tested the Q12A zone with several ground geophysical surveys and extensive diamond drilling. Asmara Oil’s diamond drilling of the Q12A grid intersected notable uranium mineralization as follows: Q12A-009 (4.0m of 0.13% U3O8 @ 197m), Q12A-003 (0.4m 3159ppm U3O8 @ 219.9m) and Q12A-005 (0.3m 0.073% U3O8 @ 180.1m), The most significant hole reported by Cameco was Q12A-011: 1.7m of 2.46% U3O8 at ~192m.

It is the Company’s exploration hypothesis that the absence of strong conductors near or at the Telephone Fault may be a result of graphitic consumption or remobilization by alteration events. Several major uranium discoveries in the Athabasca Basin such as McArthur River, Key Lake and Millennium were primarily the result of drill-testing of strong alteration zones related to conductor features, not the drill testing of specific graphitic conductors. The Key Lake and Millennium deposits, which were initially missed in first-pass drilling, were discovered by step-out fenced holes drilled across alteration zones. Millennium was discovered by drilling “off conductor” and deeper into a basement alteration system. McArthur River was found by drilling along the strike-trend of a pronounced alteration system where conductors were largely absent. The Company is in the process of evaluating “next step” exploration phases. A ground survey (such as gravity, resistivity or 2D seismic) would likely precede diamond drilling.

Anita Algie BSc. Hon., President, commented, “Unity now has high value targets on both of its Waterbury Lake assets: Lampin Lake and Waterbury Lake. It is the Company’s intention to explore and develop these highly prospective properties, with or without venture partners. In addition, the recent bidding war for Hathor by Cameco and Rio Tinto has reaffirmed in the minds of investors worldwide the viability of uranium as an exploration commodity. This may well be the black swan event that renews the uranium renaissance.”

Dr. Peter Born, P.Geo., the Company’s Qualified Person and Director, has not reviewed the original drill logs, assays or core of historic drilling. Geological and exploration information contained in this release is derived from sources believed to be credible.


Airborne surveys for uranium in Athabasca Basin

Posted by on Tuesday, 27 September, 2011

Unity Energy Corp.  announces that it has acquired through staking a prospective uranium exploration property known as the Milliken Lake Property. The 1,941 hectare claim lies on the eastern edge of the Athabasca Basin, adjoining to the southeast, UEX’s Hidden Bay and to the west Hathor’s Milliken Creek Project. The project area has seen significant exploration activity, including an Aeroquest AeroTEM III time domain helicopter electromagnetic survey in 2005 (UEX) and boulder prospecting survey (Denison) in 2006. With this acquisition, Unity now controls eight quality uranium exploration projects (27,500 hectares) in the most productive region in the world.

Aeroquest’s Mag/EM survey was successful at detecting a northeast trending moderately conductive anomaly, spanning ~4.5km of the Milliken Lake Project. The Milliken Conductor, which appears to be a subtle anomaly that may represent an alteration zone corresponding with a magnetic low, is the Company’s primary exploration target at Milliken Lake. In 1997, Cameco tested a gravity anomaly in the northern portion of the Project, which was then part of the Park Creek Project. The unconformity was intersected at 97.4m (hole GL-1) and 87.95m (hole GL-2). Neither hole intersected alteration or mineralization; the holes were approximately one kilometer north of the Milliken Conductor.

The Company also covered the Milliken Lake Project in its 2011 VTEM survey; an interpretation on the results should be available in the near term.

Unity Energy Corp. has completed a heliborne VTEM geophysical survey over its Close Lake, Lampin Lake, Hoppy Lake, Kirkpatrick Lake and Dickens Lake projects in the northeastern Athabasca basin and La Ronge gold belt. The survey consisted of about 3,385 line kilometres with 100-metre spacing. Unity is awaiting preliminary interpretation and will use the data to refine target zones.

VTEM is highly effective at locating discrete conductive anomalies, magnetic features extending to the basement. It is also highly effective at mapping lateral and vertical variations in resistivity and is a leading-edge solution for uranium exploration in the basin. VTEM is an evolving technology and this latest generation boasts a higher sensitivity achieved by noise reduction and the optimization of transmitter current waveform, along with dipole-moment increases. The low noise level significantly extends conductance aperture and conductance discrimination.

The Athabasca Basin is an ancient sedimentary basin which hosts the World’s most significant uranium mines and produces almost 30% per cent of the current world uranium production of 108 million pounds U3O8. Athabasca uranium deposits also have grades substantially higher than the world average grade of about 0.2% U3O8. The two dozen or so known uranium deposits within the Athabasca Basin have average grades of more than 3.0% U3O8. The two largest deposits, Cigar Lake and McArthur River have average grades of 20% and 24% U3O8 respectively. The near surface uranium mines in the Cluff Lake mine area produced more than 60 million pounds of uranium with gold as a by-product.

The Athabasca Basin is host to unconformity-associated type Uranium deposits. Mineralization occurs at, above or below the unconformity which separates the Proterozoic Athabasca Sandstone Group from the underlying metamorphosed gneissic rock. Uranium mineralization within the Athabasca Basin is primarily hosted by meta-sediments including pelites and calc-silicates and by sandstone of the Athabasca formation. The pelites are commonly graphitic (free carbon) which may have acted as a chemical reductant, fixing uranium from water circulated by large hydrothermal systems. Some Athabasca uranium deposits are associated with faults and these faults may cause displacements of the basal unconformity.


The new uranium exploration target zones through EM and gravity analysis

Posted by on Thursday, 15 September, 2011

Unity Energy Corp. announces that it has identified five distinct exploration target zones at its Lampin Lake Uranium Project, which adjoins UEX’s Hidden Bay Project and is located ~16km southeast of Hathor’s Roughrider discovery. The zones were identified through a detailed analysis of VTEM data, historical Bouguer Gravity and diamond drilling to the south by Cameco (Dawn Lake Project).

Zones A, B and C are were identified through the VTEM as conductive anomalies that exist within magnetic lows that could not be explained by surface features, conductive lake or stream sediments. Zones D and E were identified as highly conductive anomalies that exist within a magnetic low. Zone C is particularly interesting. This ~1.5km long zone is open to the west and roughly parallels the Q12-A Zone, a conductive series that lies less than 500m south of Lampin’s southern boundary in the Telephone fault. Exploration of the Q12-A EM conductor, by Asamera and subsequently Cameco, led to the discovery of a large alteration zone. The best hole Q12-A-009 (1982) intersected ~4.0m of 0.13% uranium mineralization at a depth of 196m, this being at the unconformity. It is the Company’s hypothesis that mineralization is controlled by a faulting structure that exists within the boundaries of the Lampin Lake Project, just to the north of the conductive series. An “off-conductor” exploration model, along the lines of Hathor’s Roughrider Deposit, Denison’s Phoenix Zone or Cameco’s Millennium Deposit, has been proposed.

The proposed exploration model is that the deposition of uranium mineralization exists within an alteration zone which is often marked by a graphitic horizon which can be highly conductive and therefore detectable by geophysical techniques. Magnetic lows in the survey may indicate possible faulting or breaks in the basement rock through which mineralized fluids have penetrated and deposited uranium at the basement or within the overlying sandstone. Together, the existence of a conductor in association with a magnetic low can form a compelling exploration target. The company’s next step is to examine conductivity depth sections along prospective VTEM flight lines to model cross sections of the target zones. If warranted, targets would then be examined by ground geophysics and then diamond drilled.