Apollo Minerals (Australia), an iron ore explorer and developer, has reported on exploration progress at its Mt Oscar Magnetite Project in the Pilbara Province of Western Australia, during the quarter.

An exploration target of 350 to 650 million tonnes grading 30% to 37% in situ iron was modelled for Apollo’s Mt Oscar Magnetite Project. Metallurgical tests demonstrated >60% iron concentrate grades are achievable.

In addition to undertaking initial metallurgical testwork and commencing a detailed geological mapping program at Mt Oscar, the volume/tonnage modelled from aeromagnetic data was upgraded in light of the better than expected apparent thicknesses of magnetite-bearing banded iron formation (BIF) encountered in recent drilling.

Exploration Target

Detailed forward and 3D magnetic models, generated in 2009 by independent geophysical consultants Southern Geoscience Consultants (SGC) from airborne magnetic data flown by Apollo over its Mt Oscar project area, have been revised to take account of the results of the company’s recently completed drilling program.

This modelling was undertaken to assist in the ongoing exploration of the project, and to refine estimates1 of volume/tonnage of the highly magnetic BIF.

The combined estimate over portions of Apollo’s licence (E47/1379 – Mt Oscar) and the recently acquired Mt Oscar East (E47/1304) is an exploration target1 of 350 million tonnes (“Mt”) to 650Mt of magnetite-bearing BIF, grading 31% to 37% iron in situ.

This modelling is based on interpretation and modelling of geophysical data, rock-chip sampling and the December 2009 RC drilling information from Mt Oscar, and geophysical data and rock-chip sampling at Mt Oscar East.

Float mapping at the Ibis Prospect confirmed the presence of near-surface magnetite-rich metasediments similar to those observed at Sequoia.
Interpretation of airborne and ground magnetic data acquired by earlier explorers indicates that the Ibis anomaly comprises a number of parallel bands of magnetic material, ranging in thickness from 20 m to 50 m, occurring discontinuously over a total strike length of 4 km.

Preliminary results have been received from the AeroQuest airborne electro-magnetic and magnetic surveycommissioned in February 2010, and completed in March. The survey used AeroQuest’s helicopter borne AeroTEM IIsystem. The survey was carried out on 50 meter line spacing using a GPS navigation system with 5 meter or better accuracy, and a radar altimeter with +/- 1.5 meter accuracy. This resulted in very accurate survey positioning and detailed survey coverage.

Preliminary survey results were processed by GeoVector Management Inc. of Ottawa, and four excellent targets have been defined. These include discrete EM anomalies that could indicate massive sulphide bodies as well as structural targets for gold defined from the magnetics.

The airborne electro-magnetic and magnetic targets include:

1. A 7 km long, intermittently conductive trend broadly coincident with base metal anomalies defined from a 1990 Asarco overburden drilling program. Asarco drilled 116 reverse circulation drill holes over a total strike length of 14 km along this trend. Heavy mineral concentrates defined in two areas of the Asarco program, approximately 2 km apart, were highly anomalous in gold (up to 6000 ppb). In addition in the same area a soil survey carried out by Kerr Addison Mines in 1984 reported scattered gold (up to 150 ppb) and copper anomalies (up to 690 ppm) over a 10 km strike length.
2. An 8 km trend of strongly linear magnetic signature that may indicate a shear zone. This inferred shear zone (the Brennan structure), occurs over the Brennan Au showing discovered in 1936. The most recent work on the Brennan showing in 1991 exposed the zone over a strike length of 575 meters. The gold-bearing quartz vein reportedly produced a 50 lb composite bulk sample assaying 0.49 oz./ton Au. Examination of the magnetic signature suggests that the best part of this target area is along a 4 kilometre strike length west of historical work in an area of overburden cover which has not been previously prospected or trenched.
3. A series of very intriguing discrete EM anomalies to the north of the Brennan structure. In particular one set of anomalies occur on an inferred structure that intersects the Brennan structure in the favourable area noted above.
4. At the inferred intersection of the two structures noted above, the Brennan structure magnetic signature is disrupted and diminished in intensity amplitude. The structure begins to display EM conductors where it previously was electro-magnetically quiet. This may indicate sulphidation related to Au mineralization of the structure at this point. EM conductors appear intermittently along approximately 2 km of this area of intersecting structures.

It is anticipated that the detailed airborne survey coverage will allow targeting of future drill holes directly off the airborne survey data, thereby saving the time and expense of completing follow-up ground geophysical surveying. Current work proposals include an immediate program of reconnaissance mapping and prospecting on the promising targets defined above prior to recommendations for drill targeting. In addition a program of IP surveying on non conductive and potentially prospective segments of the Brennan structure may be required. This work will be facilitated by the excellent access to the property along Highway 801 from Highway 11. From the 801 a major logging road, The Auden Road, passes through the entire length of the property. Highland is eagerly anticipating the initial ground exploration on this promising property.

The 2010 exploration programme is scheduled to commence in mid-May with ground geophysics. Ground magnetic and electromagnetic surveys will be conducted over priority geophysical anomalies that have been selected from previously completed airborne surveys. Kimberlite-type geophysical anomalies that have been prioritized based on their geophysical signatures and association with KIMs will be targeted for drilling. Drilling is scheduled to commence in early July on up to eight targets. New kimberlite discoveries will be tested for diamonds by caustic dissolution. In addition, up to 400 KIM samples will be collected as a follow-up to anomalies identified from previous exploration work.

A map showing the location of the known kimberlites and 2009 sample locations, images of four of the geophysical anomalies that will be evaluated by ground geophysics and/or drilling, and some photos of previous field work can be viewed at http://www.pdiam.com/i/pdf/nanuq826.pdf.

PROJECT HISTORY

Exploration commenced at Nanuq in 2003. Between 2003 and 2007, 1,728 KIM samples were collected, 32,183 line kilometres of airborne geophysical surveys were flown and 591 line kilometres of ground magnetic surveys were completed. In 2007, three high priority magnetic low anomalies were drilled by the Company, resulting in the discovery of three diamond-bearing kimberlites, Tudlik (Sandpiper), Naturalik (Eagle) and Kayuu (Hawk), with estimated surface areas of one, seven and five hectares, respectively. The kimberlites at Nanuq are unique in the Western Churchill Province of the eastern Arctic in that they represent the first reported occurrence of “Lac de Gras-type” crater-facies volcaniclastic and resedimented volcaniclastic kimberlites in the region. They are also unique with respect to their late Cretaceous ages (70-80 million years) and are the youngest kimberlites known in the area.

MPX Geophysics Ltd. of Markham, Ontario, has begun high resolution, low level, helicopter-borne magnetic and radiometric surveys over 6127 hectares (1359 line kilometers) of the Santana property and peripheral areas for Corex Gold Corporation.

Magnetic susceptibility will be used to delineate fault structures and associated zones of alteration. The radiometric survey will aid in outlining zones of potassic alteration associated with epithermal and porphyry systems.

Target: A multimillion-ounce epithermal gold deposit amenable to open pit mining and heap leaching.

Property

• Located 50 km SE of Alamos Gold’s 3 million Mulatos mine (Sierra Madre Occidental mountain range in the east-central portion of the State of Sonora, Mexico)
• Project area covers 7,700 hectares
• Accessible via paved highway within 15km
• Corex has right to acquire 100%

Pitney Bowes Business Insight (Natural Resources) announces the release of Encom ModelVision 10.0, which is an advancement to the already versatile package of previous versions. In this release Encom ModelVision focuses on making it easier to work with cross-sections and 2D map views while modelling or preparing map layouts. Some new utilities also provide an easier method for data correction and examining the inversion process.

Features:

bridge the gap between automated depth methods and interactive modelling;

parametric shapes and manually drawn models;

1D, 2D, 3D visualisation of data and models;

edit models in map and section views;

2D interactive regional with 1D option;

forward and inverse modelling of bodies and any data channel;

1D, 2D convolution and FFT filter suite;

line and grid calculator;

drillhole and full airborne survey simulators.

Aarhus Geophysics contributes to the International Workshop EGM 2010.

participated to the International Workshop EGM 2010, which was held in Capri between in April(http://www2.ogs.trieste.it/egm/)
The workshop, whose theme was ”Adding new value to “Electromagnetic, Gravity and Magnetic Methods for Exploration”, offered a very stimulating set of presentations on the state of the art of these methods.
Aarhus geophysics contributed to the program with an oral presentation within the EM inversion session, about some important aspects in modelling AEM data for hydrocarbon exploration.

Aarhus Geophysics offers inversion of the Geoscience Australia Tempest and VTEM EM datasets

Come and meet Aarhus Geophysics in North America in May

“We just wanted to invite you to visit us at one of these two very important upcoming conferences in north America. You will get a chance to meet us in the exhibition area, to inquire about our products and services, and maybe also to attend some of our oral presentations in the area of AEM applied to groundwater management and exploration.

The first conference is the GeoCanada 2010 conference, which will be held from May 10th to 14th in Calgary, Alberta (http://www.geocanada2010.ca/). You will find Aarhus Geophysics at booth number 1022. We will be giving two talks, one in the Potential Field & Electrical Methods in Exploration session, and one in the Groundwater Exploration and Management 2: Aquifer scale methods session. Look out for them in the program.

The second one is World Environmental & Water Resources Congress 2010, held in Providence, Rhode Island, between May 16th and 20th (http://content.asce.org/conferences/ewri2010/index.html). The booth number is still to be confirmed, just look for us in the exhibit all. We will be giving a talk, together with our co-authors, in the Saltwater Intrusion Modeling and Management of Coastal Aquifers II session.”

Results of the 2D inversion of the IP using Null reference data along line L1 (on the top)

Results of the 2D inversion of the MT data along line L1 Boss area (on the bottom)

11 – 13 November 2010 Prince of Songkla University in collaboration with Chiang Mai University, the Department of Mineral Resources, the Department of Groundwater Resources, and the Department of Mineral Fuels invite executive personnel, scientists, researchers, and students to attend GEOPHYSICS 2010 PHUKET THAILAND.

The conference will focus on the current state of knowledge and practice of geophysical applications in the exploration of natural resources, and in addressing environmental and engineering problems, natural hazards, and changes in the climatic conditions.

Presentations and discussions will emphasize on research, policies, and practices that are needed to enable us to manage our natural resources, and plan for natural hazards and climate change. Ongoing research in various fields of geophysics will be presented in the conference.

The conference will welcome posters and orals and include presentations by invited speakers who provide state of the art overviews of main topics in focus. The presentations will be given in concurrent sessions. A field trip is planned for a half day as part of the conference.

Key topics:

Global geophysics

- Environmental, engineering and hydrological geophysics

- Seismology

- Global warming and climate change

- Natural hazard

- Petroleum exploration

- other areas of applied geophysics

The British Columbia Geophysical Society will be hosting a one day Economic Geology for Geophysicists course on May 6th. The course, provided with generous support from Geoscience BC and UBC Mineral Deposit Research Unit, is aimed at providing economic geology background for geophysicists and all exploration geoscientists. The information presented will provide a framework to help the integration and communication of exploration techniques.

Economic Geology for Geophysicists
Thursday, May 6th
UBC Robson Square Room 483
BCIT, Downtown Campus
555 Seymour Street, Vancouver

Course presenters include Thomas Bissig (MDRU), Craig Hart (MDRU), Dianne Mitchinson (MDRU), Steve Rowins (BCGS), Claire Chamberlain (Teck), Lucas Marshall (Teck), and Sean McKinley (Cambria Geosciences Inc).

Topics that will be covered include: tectonic settings, host rocks, structure, emplacement, alteration, mineralization and the relation and comparison between various deposit models. Deposit types to be discussed include porphyry deposits, Archean gold, intrusion-related gold, epithermal gold, VMS, SEDEX/MVT/sediment-hosted copper, and IOCG deposits. Physical properties will be considered!

Geosoft has been named to this year’s Branham300, a listing of the top revenue performers in Canada’s information technology industry. The company ranked 160 in the top 250 Canadian IT companies. The list is compiled annually by leading industry analyst firm Branham Group. This is the 10th consecutive year that Geosoft has ranked in the Branham300.

Branham Group is a leading industry analyst and strategic consulting firm servicing the global information technology marketplace. For 17 years, Branham 300 has highlighted the top Canadian IT companies in its annual listing. Included in the listing are Canadian software companies and multinational world leaders, such as IBM, Microsoft, Cisco Systems and Oracle.

“Our stability and consistent growth is a strong reflection of the customer relationships we’ve been able to foster over the past 24 years,” said Tim Dobush, CEO, Geosoft. “Geosoft software and solutions are used extensively within exploration industries and the geosciences to distill knowledge from large volumes of data and support critical decision making.”