Posts Tagged Condor Consulting

Airborne EM Survey over the Oldest Meteor Impact Site

Posted by on Tuesday, 24 July, 2012

North American Nickel Inc. reports that fifty zones of conductivity, many with significant strike lengths, have been identified in preliminary data from its recently completed VTEM Plus helicopter time domain electromagnetic survey over its 100% owned Maniitsoq project in Southwest Greenland.

The Geological Survey of Denmark and Greenland (GEUS) had recently announced the discovery of the oldest-known meteorite impact site in the world, rousing the company’s interest in its Maniitsoq project.

More than twelve of the fifty have already been identified as higher priority zones which have the potential to become targets for the company’s upcoming drill program in August. A more detailed analysis of all the VTEM Plus data is underway.

NAN CEO, Rick Mark, states: “We are very pleased that the VTEM Plus system has been successful in delineating fifty new conductors. With this data, we already have a dozen new targets similar in priority to the three drill targets previously identified in last fall’s smaller SkyTEM survey, some with apparent strike lengths in excess of 1 km. Now that we can point conclusively to conductors occurring throughout the 75 km long belt, we are more comfortable than ever in describing this as a camp-scale exploration play.”

The Greenland Norite Belt (GNB) is a 75 km long by 15 km wide belt of crustally contaminated noritic intrusions with numerous historical, high-grade nickel sulphide showings (e.g. 9.85 m averaging 2.67% Ni and 0.60% Cu at the Imiak Hill showing). Mineralization within the belt has consistently high nickel tenor (6-8% Ni in 100% sulphide according to work done by Falconbridge in 2000).

Despite its obvious high prospectivity, the GNB has seen little drilling. A total of 119 holes totalling only 6,300 m, for an average hole length of less than 53 m, were drilled in the 1960′s and 70′s. More recent exploration programs stopped short of drilling due to a lack of EM anomalies to guide drilling. NAN’s strategy at Maniitsoq has been to use modern helicopter borne TEM systems to develop drill targets and it has proven successful. This technology was not available to previous explorers.

The VTEM Plus survey, combined with a SkyTEM survey flown by NAN last year, provides the company with high resolution TEM coverage over a total area of 860 square kilometers centred on the Greenland Norite Belt).

Data from the VTEM Plus survey is currently being processed and interpreted. All significant electromagnetic anomalies will be checked in the field and ranked. The highest priority targets will be tested during a drill program that is planned to commence in August.

The survey, which ran from June 20 to July 17 and comprised 3,532 line-km of surveying, was performed by Geotech Ltd. of Toronto, OntarioCondor Consulting Inc. of Lakewood, Colorado provided daily QA/QC analysis of the data.

http://media3.marketwire.com/docs/nan-0724-image1.pdf


Helicopter EM and Magnetic Surveys on Southwest Greenland

Posted by on Monday, 12 September, 2011

North American Nickel Inc. announces that, based on the results of compilation work, including a re-interpretation of historical airborne geophysical data and a recently completed field program, it has selected two areas for helicopter, time domain electromagnetic (TEM) and magnetic surveys.

Locations of the two areas, referred to as blocks 1 and 2, are shown in Figure 1 (Download this Press Release (PDF 528 KB). They cover a total area of approximately 360 km2 and will involve approximately 2,000 line-kilometres of surveying. Flight line spacing will range from 100 to 200 metres.

NAN has signed a contract with SkyTEM Surveys ApS to do the helicopter TEM surveying, which is scheduled to begin in mid September. SkyTEM is a Danish company with experience in Greenland and expertise in the execution and interpretation of helicopter TEM and magnetic surveys.

Purpose of the Survey

The purpose of this work is to locate targets for drilling. As described in a NAN news release dated August 15, 2011, the Maniitsoq property hosts numerous high-grade nickel-copper sulphide occurrences associated with noritic intrusions. A large portion of the project area was covered by a fixed wing GeoTEM survey in 1995, but very few EM anomalies were detected and no follow-up drilling was done. NAN believes that a modern helicopter TEM system is much better suited to locating anomalies associated with irregularly shaped nickel-copper sulphide bodies in the rugged terrain that characterizes the Maniitsoq project. The 1995 fixed wing GeoTEM system was often forced to fly at a low angle to strike and well above mandated ground clearance whereas a helicopter system will be able to hug the terrain and survey perpendicular to strike. Also, the signal to noise ratio of the helicopter system will be significantly lower, which will aid in the detection of irregularly shaped sulphide bodies.

Block 1 and 2 Survey Areas

Block 1 covers 346 km2. It includes the largest noritic intrusions and most significant nickel occurrences in the project area (Figure 2). A re-interpretation of historical aeromagnetic data has shown that in this part of the project area the noritic intrusions have a significant component of remnant magnetism giving them a very distinctive magnetic signature. Mapping out this signature suggests that there may be significantly more noritic rock and associated nickel-copper mineralization than is exposed on surface.

Block 2 is centred on a northeast-striking, noritic intrusion known as Pingo that is exposed over a strike length of more than 4 km (Figure 3). Rusty zones ranging from <1 m2 to over 100 m2 occur throughout the exposed norite and typically contain trace to several percent pyrrhotite and trace chalcopyrite. A short (61.88 m) hole was drilled near the centre of the exposure in 1970 and intersected a 4.16 m interval of weak sulphide mineralization averaging 0.58% Ni and 0.24% Cu. This is the only recorded drilling on the intrusion.

Survey Terrain

The terrain in the Pingo area is extremely rugged and the 1995 GeoTEM survey was forced to fly with a ground clearance over 100 m above the mandated 125 m clearance, severely hindering the ability of the system to see prospective EM anomalies. No EM anomalies were picked in the original interpretation of the data, but NAN’s re-interpretation has revealed three high priority EM anomalies forming a line that intersects the south edge of the Pingo norite. These anomalies are at the noise threshold and, accordingly, it becomes difficult to differentiate anomalous from background responses. A helicopter survey is required to properly evaluate them and determine if there are other conductors associated with the Pingo norite.

It has retained the services of Condor Consulting Inc., recognized experts in the field of airborne electromagnetics, to provide QA/QC and advanced interpretation services for the company’s SkyTEM helicopter EM and magnetic survey at its 100% owned Maniitsoq project in southwestern Greenland. The survey is scheduled to commence at the end of this week and is being performed by SkyTEM Surveys ApS.  SkyTEM is a Danish company with experience in Greenland and expertise in the execution and interpretation of helicopter TEM and magnetic surveys.


The new Key Lake SW Airborne Survey Results

Posted by on Tuesday, 17 August, 2010

Kirrin Resources Inc. today announced the results of the evaluation and interpretation of the 1,076 line-km magnetic-electromagnetic (Tempest(R) EM) airborne survey of the Key Lake Southwest (‘Key Lake SW’) uranium property located on the southeastern margin of the Athabasca Basin in Saskatchewan. The Condor Consulting Inc. report identified 7 first priority, 5 second priority and 7 third priority targets that warrant follow-up assessment. Some of these anomalies correlate with geological, geophysical or geochemical anomalies identified from prior exploration, whereas others are newly identified. All are prospective for ingress style (i.e., basement hosted) uranium deposits along the geologically favourable Wollaston Group basement trend.

Commenting on the results, Kirrin President and CEO, Derek J Moran said: “These results have added substantial value to the Key Lake SW uranium project, and show clearly its potential for another eastern Athabasca uranium discovery.”

Processing, interpretation and correlation of the results with magnetic response and geology define two main types of conductors, discrete plate-type and broader, flat lying wide zones (Note 1). These have been further grouped by Condor into 19 target zones and subjectively ranked, according to their conductivity, magnetic association, strike extent and geological association, from high to low priority, with 7 target zones being ranked first priority. Historic wide-spaced drilling on parts of four of the 19 target zones identified prospective geology, including a possible sub-Athabasca Group regolith that was logged in several holes which are located within a Wide Zone EM conductor.

The number one priority target zone has good potential for uranium mineralization because significant uranium values within wide zones of graphitic pelites have been intersected in drill holes targeted along the northeastern extension of this conductor lying within Triex’s Riverlake and Forum Uranium’s Orchid properties. There are 9 other target zones (for a strike length of 52.9 km) which display similar geological and geophysical conductive and magnetic characteristics as observed on adjoining properties and over other uranium deposits in the region and thus are ranked as having high potential for uranium mineralization. The survey also showed that some target zones at Key Lake SW have potential for base metal mineralization or iron formation similar to the geological horizons mapped in the McArthur River mine.

Kirrin is planning the next stage of exploration at Key Lake SW. Follow-up fieldwork at selected first priority targets is likely to comprise (a) systematic prospecting of anomalous conductive trends to prioritise drill targets along those trends, (b) follow-up geochemical lake sediment and possibly soil surveys, (c) magnetic and electro-magnetic surveys on grid areas established over first priority target zones in order to locate conductive axes and attitudes for drill collar positioning, and (d) drill testing of selected targets.

Note1: Magnetic surveys, structural geology, drill and surface geochemistry compiled over the eastern portion of the Athabasca Basin indicate that uranium enrichment and deposits are associated with conductive horizons, located within or along magnetic low troughs, which typically represent graphitic and sometimes magnetite rich iron formations and associated contacts. These horizons are flanked or sandwiched between magnetic highs, which represent underlying Archean type granitoid domes or arches. The reduced magnetism is caused by regional faults, which provide control and form traps for uranium enrichment. The graphitic rich pelite horizons in the basement rock are excellent conductors and host uranium mineralization. They act as markers as they can be located with electromagnetic surveys and targeted with drill holes.


Exploration Update on Key Lake SW Uranium Project in the Athabasca

Posted by on Tuesday, 6 July, 2010

Kirrin Resources Inc. today announced the completion of a 1,076 line-kilometre magnetic-electromagnetic (EM) airborne survey of the Key Lake Southwest (‘Key Lake SW’) uranium property located on the southeastern margin of the Athabasca Basin in Saskatchewan, Canada. Fugro Airborne Surveys Corp. of Ottawa, Ontario (‘Fugro’) was contracted to complete the survey. In addition, a review of the technical disclosures following the January 10, 2010 announcements by Delta Uranium Inc. (‘Delta’) and Denison Mines Corp. (‘Denison’) of the expansion of their Phoenix Discovery, just 60 km from Key Lake SW, has revealed many geological similarities between Phoenix and Key Lake SW.

Kirrin’s airborne magnetic-EM survey at Key Lake SW utilised Fugro’s fixed-wing Tempest(R) Digital Time Domain Electromagnetic (DTDEM) system which provides maximum quantitative discrimination of relatively near surface (upper 200 to 300 m) conductivity variations. Kirrin has appointed Condor Consulting, Inc. of Lakewood, Colorado,  to undertake the processing and analysis of the airborne EM and magnetic data acquired by Kirrin. Condor anticipates submitting its report by July.

On January 10, 2010, Delta and Denison reported that high-grade uranium mineralization continues to be encountered on the Phoenix discovery on the Wheeler River Property located in the Athabasca Basin of northern Saskatchewan, and that the results of the fall 2009 drilling program have confirmed that the Phoenix discovery has the potential to host an economically significant, high-grade uranium deposit.

The Key Lake SW property is at the southwest end of the geologically favourable trend that hosts numerous uranium mines and important deposits, including the Phoenix and Millennium deposits, and the former Key Lake mine. Although the Key Lake SW property is believed to be somewhat southwest of the margin of the current Athabasca Basin, there is evidence (regolith encountered in some old drill holes) that indicates the Athabasca Supergroup-Wollaston Group basement unconformity was not far above the present ground surface within the property. Discovery of several ‘Ingress style’ uranium deposits, such as Phoenix (up to 117 m below unconformity), Millennium (up to 100 m below unconformity), Eagle Point (up to 450 m below the unconformity) and some other deposits within the Athabasca Basin, indicate that important uranium deposits can occur from several tens of metres up to a few hundred metres below the unconformity. Hence, there is potential for important basement-hosted uranium deposits to exist within the Key Lake SW property. Regional aeromagnetic data show the Phoenix discovery is associated with a fault which cross-cuts the P2 Rift Fault.

Important features at the Phoenix basement-hosted uranium discovery which are similar to the geological setting at the Key Lake SW property include the geological composition of the host basement rocks, the spatial association with the projected regional P2 fault, and the localization of the Phoenix uranium prospect on cross-cutting faults. Gracie (2009) has postulated that the Key Lake SW property is along the projected extension of both the P2 fault, which extends southerly from the McArthur River mine, and the Key Lake fault, which extends southwesterly from the former Key Lake mine.

The eastern margin of the Athabasca Basin is home to the most productive uranium mines in the world with roughly 25% of the world’s uranium production coming from this area. Kirrin’s target at Key Lake SW is basement-hosted unconformity-type uranium deposits, similar to Cameco’s basement-hosted Millennium deposit, located about 50 km to the northeast; the Phoenix discovery, located about 60 km northeast; and the former Key Lake mine, located about 35 km east-northeast.


Drill program and upcoming Exploration of VMS Ventures Inc.

Posted by on Saturday, 3 July, 2010

VMS Ventures Inc. reports that the first round of drilling at the Copper project has been completed and that no significant economic mineralization was intercepted in the 5 holes drilled. All geophysical targets were explained by the drill program which intersected thick sections of conductive graphite-rich sedimentary rock units. The area of the first drill program is roughly 2 km by 3 km, and is a small portion of the 35 km by 11 km Copper Project.

This first drill program focused on targets that occur on the northeast section of the property in a geological environment dominated by chemical and clastic sedimentary rocks. In the Snow Lake area these rocks host zinc-rich base metal massive sulphide-type deposits, but are not the typical volcanic host rocks to the copper-zinc deposits mined in the Flin Flon – Snow Lake camp.

Dr. Mark Fedikow, VP Exploration states: “Although the geophysical conductors identified in airborne surveys were explained, none of the targets were mineralized or significantly altered as would be expected in a volcanogenic base metal massive sulphide-type mineralizing system.”

One of the results of this initial drill program is that the Company has converted one of its Mineral Exploration Licenses within the project to claims covering untested geophysical anomalies located to the south of the recent drilling.  This will reduce the holding cost of the land and allow previous work expenditures to be applied as assessment credits to the new claims. The Copper project is one of the largest land positions held by the Company in the Flin Flon – Snow Lake greenstone belt and with the conversion of this MEL to claims the land size is reduced by approximately 12% of its total area.

UPCOMING EXPLORATION

This summer and fall VMS exploration programs will focus on areas underlain by volcanic rocks that occur beneath the younger Paleozoic dolomite cover. These volcanic rocks typically host the base metal deposits being targeted. Company geologists are reviewing historical drill hole data for evidence in drill hole geology to compliment geophysical and geochemical survey information used to detect buried mineralization.

The Company has several exploration programs planned. These include drilling, prospecting, geochemical survey sampling and ground truthing of prospective airborne geophysical targets.

Sails Lake

Airborne VTEM geophysical anomalies have been detected on the property. These anomalies are associated with known mineralization and host rocks typically associated with base metal massive sulphide-type deposits in the area. A number of these anomalies have coincident Mobile Metal Ion soil geochemical anomalies with them and as such will be the prime focus of drill testing in the upcoming program.

Plate modeling of airborne geophysical anomalies is complete and preliminary drill targets are defined. Historical results report both precious and base metal mineralization on the property. Precious metal results of surface gold samples in prospecting trenches report grab samples grading as high as 64.29 g/t Au and 14.52 g/t Au. Targets indicative of gold mineralization such as fault-shear zone, or fold structures, alteration and soil geochemical signatures are still being evaluated.

Base metal occurrences in surface and drill core samples of copper-zinc mineralization include an intercept of 0.55m grading 7.2% Zn, 0.12% Cu, 10.54 g/t Ag and 0.34 g/t Au in a drill hole adjacent to one of the conductors planned for drill testing this summer, and elevated zinc values in stringer sulphide mineralization elsewhere on the same  conductor.

Geologists are in the field through the first part of this summer, to re-examine the host rocks as to base and precious metal targets developed from the compilation of historical data. Several base metal targets are near final stages in their evaluation. The gold targets present a more difficult challenge as this type of mineralization does not readily show itself in geophysical surveys and the property has only limited rock exposure on which to prospect this type of mineralization. Geologists will be looking closely at the soil geochemical survey results and their association with known gold occurrences on the property to assist in locating gold mineralization buried under soil overburden.

Drilling at Sails Lake is expected in August, pending approval of permits.

The Sails Lake property is located approximately 10 km east of the past-producing Osborne Lake copper-zinc-gold-silver deposit and approximately 30 km east of the mining community of Snow Lake.

Morton Lake

A program consisting of ground truthing airborne geophysical targets and detailed mapping of mineralized trenches and favorable host rocks to base metal mineralization will be undertaken at the Morton Lake property. Mobile Metal Ion soil geochemical surveys will also be conducted over buried geophysical targets.

The property is underlain by felsic and mafic volcanic rocks that are similar in tectonic environment and chemistry to the host rocks for the past-producing Dickstone copper-zinc deposit.

The Company has recently added to its land position to the east and south of the original Morton Lake claims and now has a land position roughly 20 km in length covering mafic and felsic volcanic rocks similar to the rocks that host the Reed Lake Discovery Zone.

Leak Lake

Airborne VTEM anomalies have been identified on the property and subsequent Mobile Metal Ion geochemical surveys completed over these conductors. The results of the two surveys are being merged to evaluate the targets for possible drill testing.

Puella East

Airborne VTEM surveys have been completed and anomalous responses analyzed by Condor Geophysics of Denver, Colorado. The area is mostly covered by swamp and overburden which precludes detailed geologic mapping. The property was mapped in 2009 on a reconnaissance scale and geophysical anomalies placed into their geologic context, where possible. A winter Mobile Metal Ion survey will assess these conductors in terms of metal content in preparation for diamond drill testing.

Farwell Lake

Like the Puella East project, the Farwell Lake project area is overlain by wet organic overburden and post-volcanic dolomite cover. Airborne VTEM anomalies have been identified and Mobile Metal Ions surveys recently completed. Samples have been submitted for analysis and results will be integrated with geophysics and historic geologic observations from previous exploration programs. Drill targets will be assigned on the basis of these integrated datasets.

VMS Ventures Inc. is focused primarily on acquiring, exploring and developing copper-zinc-gold-silver massive sulphide deposits in the Flin Flon-Snow Lake VMS Belt of Manitoba. The Company’s VMS project property portfolio consists of the Reed Lake Project, Copper Project, McClarty Lake Project, Sails Lake Project, Puella Bay Project and Morton Lake Project. Outside of the Snow Lake camp, the Company holds massive sulphide prospective properties near the past producing Fox Lake and Ruttan copper-zinc mines, near the communities of Lynn Lake and Leaf Rapids in northern Manitoba. All VMS Ventures Inc. properties are located in the mining friendly province of Manitoba, Canada.


All That Glitters: Geophysical Exploration for Precious Metals

Posted by on Sunday, 7 March, 2010

it was a theme of Canadian Exploration Geophysical Society’s a timely and informative full-day symposium which took place yesterday in Toronto and timed to PDAC-2010. A roster of noted industry experts presented papers focussing on exploration and extraction of gold, silver, and platinum group metals. The symposium included an introductory overview of key geological aspects of important types of Au, Ag, and PGM deposits, cover particular geophysical surveys and applications, case studies, and look at promising future technologies.

The companies which made the presentations: Barrik Gold Exploration; SRK Consulting; MB Geosolutions; Condor Consulting; Fugro Airborne; Aeroquest Surveys with Teck REsources; Geotech Ltd.; Zonge Egineering with Terra Res.; Quantec Geoscience; JVX Ltd.; Abitibi Geophysics; SJ Geophysics Ltd.; Southern Geoscience Consultants; Levon Res with Coro Minera and Fritz Geophysics; Geophysical Algorithms; RMIT; Geoscience BC; GSC; University of Quebec; Ontario Geological Survey with PGW.

http://www.kegsonline.org/?dir=event&sub=&id=8002