The people, science and technology behind discovery

Subscribe to the Magazine

Get new articles sent directly to
your mailbox.

Join the network

Twitter Updates Group Forum

Earth Explorer is an online source of news, expertise and applied knowledge for resource explorers and earth scientists. Sponsored by Geosoft.

News & Views

News Archive

December 7, 2016

Geosoft introduces IP and resistivity inversion in VOXI Earth Modelling

Geosoft has added induced polarization and resistivity data inversion to its VOXI Earth Modelling 3D inversion software service. Geoscientists are now able to create detailed 3D models of conductivity and chargeability from IP and resistivity survey data with VOXI. The resulting models can assist in interpreting and targeting regions for mineral and environmental applications...

December 5, 2016

Mexico's Deepwater Round Exceeds Expectations

Some of the world's biggest oil companies showed up Dec. 5 and agreed to invest on the Mexican side of the Gulf of Mexico, proving that deepwater exploration still has a pulse despite challenging market conditions...

November 30, 2016

Magnetic inversion results for Ngamiland available for download

A regional-scale geophysical inversion of magnetic field data in the Ngamiland region of northwestern Botswana is now available for download from the Botswana Geoscience Portal, a partnership initiative of the Botswana Geoscience Institute, industry sponsors and Geosoft...

November 30, 2016

LIGO Resumes Search for Gravitational Waves

After a series of upgrades, the twin detectors of LIGO, the Laser Interferometer Gravitational-wave Observatory, have turned back on and resumed their search for ripples in the fabric of space and time known as gravitational waves. LIGO transitioned from their engineering test runs to full science observations at 8 a.m. Pacific Standard Time on November 30...

November 9, 2016

International Volcano Scientists Unite

For the first time, the United States will host the international Volcano Observatory Best Practices workshop, previously held only in Italy. The workshop will take place this month in Vancouver, Washington. It is designed specifically for volcano observatories around the world and their staff to exchange ideas and best practices with each other...

October 4, 2016

USGS Assesses Mineral Potential for Sagebrush Habitats in Six Western States

USGS has completed a comprehensive assessment and inventory of potential mineral resources covering approximately 10 million acres of Federal and adjacent lands in Idaho, Montana, Nevada, Oregon, Utah and Wyoming...

October 3, 2016

Uganda Targets Up to U.S.$100 Million for Mineral Exploration

Uganda is well endowed with mineral resources and, like many naturally-gifted African countries, is becoming keen on ensuring that these resources play a transformative role in its long-term structural transformation dream - the Vision 2040...

September 9, 2016

Small-Scale Fishers Get A Big Boost With First-Of-Its Kind Impact Investment Fund

Conservation organization Rare announces the Meloy Fund for Small-Scale Fisheries at Our Ocean Conference. The Global Environment Facility, one of the largest funders of conservation worldwide, will be investing $6 million into the fund...

September 1, 2016

Scientists take to the skies to track West African pollution

Scientists operating research aircraft over West Africa have detected organic materials in the atmosphere over a number of urban areas, contributing to concerns of the rise in pollution across the region...

August 17, 2016

New IGS Xplore prospectivity maps for Botswana

International Geoscience Services have released a series of base metal prospectivity maps for the Ngamiland District of northwestern Botswana using free geodata available on the recently-launched Botswana Geoscience Portal, hosted by Geosoft. The maps identify favorable areas for copper, zinc and lead mineralization using geological, geochemical and geophysical datasets downloaded directly from the portal.

August 11, 2016

NexGen Makes New High Grade Discovery

NexGen Energy reported the discovery of a new high grade zone of mineralization 4.7 km northeast of the Arrow Deposit as part of an on-going summer drilling program on its 100% owned, Rook I property, Athabasca Basin, Saskatchewan...

August 10, 2016

Rampion UXO Disposal to Take Place This Week

E.ON has confirmed that the two unexploded devices, detected along the Rampion offshore cable route will be safely disposed this week following the consultation with the Marine Management Organisation...

August 9, 2016

Diamonds In The Rough: E&Ps Find New Reserves In Mature Basins

The oil industry’s history demonstrates clearly that new plays and prospects have long been found in mature basins that were thought to be well on the way to being squeezed dry. Through the acquisition of new data, developing new concepts and coming up with fresh interpretations, long-producing basins around the world from the North Sea to Malaysia have continued to reveal new riches...

August 8, 2016

Northern Shield Identifies High Quality VTEM Targets at Séquoi

Northern Shield Resources announced the results of the interpretation and modelling of the VTEM survey from the Séquoi Property in the Labrador Trough of Quebec . Séquoi is owned 100% by Northern Shield and is being explored for Noril'sk style Ni-Cu-PGE massive sulphides. After geophysical modelling and interpretation of the VTEM data from Séquoi, six VTEM anomalies of significant interest have been identified...

August 3, 2016

Rio Tinto tailors big data drive to copper

Rio Tinto will put the weight of an exploration big data push and its newly-formed Growth and Innovation group behind its desire to identify a "tier 1" copper asset. Speaking at the annual Diggers & Dealers conference in Kalgoorlie, Growth and Innovation group executive Stephen McIntosh said Australia was "overdue for a tier 1" mineral discovery of any type...

August 1, 2016

Tetra Tech Awarded $200 Million Navy CLEAN Contract

Tetra Tech announced that it has been awarded a $200 million, single-award contract by Naval Facilities Engineering Command (NAVFAC) Atlantic. Through the Comprehensive Long-term Environmental Action Navy (CLEAN) contract, Tetra Tech will provide environmental engineering support services to installations within the NAVFAC Atlantic Area of Responsibility...

May 3, 2016

NATO Science for Peace and Security (SPS), MODUM Partners announce "Young Scientist Summer School on Sea Dumped Chemical Weapons"

This international project cooperates closely with CHEMSEA (Search and Assessment of Chemical Weapons) Project for and sharing and knowledge transfer...

April 12, 2016

Monday mad rush for gold stocks

Renewed optimism about the outlook for gold saw investors pile back into gold stocks, pushing many stock to 52-week highs in heavy volumes...

April 11, 2016

Medgold Resources: Continues to Expand the Boticas Gold Project, Portugal; Proposes $200,000 Private Placement

Medgold Resources is pleased to announce new assay results from contiguous rock-chip sampling from the Limarinho South zone at its Boticas gold project in Portugal, which include a highlight of 6.0m @ 5.7 g/t Au...

April 8, 2016

De-carbonizing our energy sector

Nuclear energy currently provides around 11 percent of the world's electricity. China, the European Union, the United States, India, Russia, South Korea, and other nations’ have major existing fleets...

April 1, 2016

Follow-Up Drilling Results Indicate Wide Gold Zones at Hendricks Gold Discovery

Gascoyne Resources Limited announced that it has received the final assay results from the 10,000 metre aircore exploration drilling programme...

March 26, 2016

The Oil Market Is Finally Hitting Its Breaking Point

After a significant reduction in investments over the past two years, oil companies can no longer overcome the production declines from legacy wells...

March 15, 2016

N-Sea Expands into the French Offshore Wind Industry

Subsea IMR provider, N-Sea, has signed a letter of intent with CERES Recherches & Expertise Sous-Marine and TechSub Industrie Environement, to provide subsea survey, installation and remediation services to the French offshore wind industry...

March 9, 2016

PDAC 2016 Convention Exceeds 22,000 Attendees

Optimism and opportunity abounded at the PDAC 2016 Convention of The Prospectors & Developers Association of Canada in spite of recent industry challenges...

March 3, 2016

6 Alpha Launches EOD Contracting Division

6 Alpha Associates, a specialist risk consultancy practice, with expertise in the assessment and management of unexploded ordnance, has launched a dedicated explosive ordnance disposal division...

New perspective accelerates exploration at Eaglecrest's San Simon project

President Hans Rasmussen explains how having the right team and technology is contributing to higher success rates for Eaglecrest

Sometimes, simply viewing exploration results from a different perspective can highlight hidden details and change the whole direction of a project. That's what happened when Hans Rasmussen, a former senior geophysicist for Newmont and Rio Tinto, took the helm at Eaglecrest Explorations Ltd. (now Columbia Crest Gold Corp) and brought his appreciation for having the right team, approach and technology to explore projects to the fullest.

Rasmussen's first priority as President of Eaglecrest was to assemble a first-class team, both on the executive and on the ground, to lead and develop the company's advanced gold exploration projects. And his first observation on the ground was that the company needed to update the archaic software being used on drill projects, and bring in technology that enabled deeper, three dimensional insight.

Although Eaglecrest had been exploring the San Simon gold project in northeastern Bolivia for more than a decade, it wasn't until last year, when Rasmussen's team used the Geosoft exploration platform, and specifically their Target exploration geology application, to produce a 3-D model of previous drill sections, that Eaglecrest noticed something it hadn't seen before: the gold was concentrated in vertically-oriented high-grade gold shoots.

Three Dimensional Model of High Grade Gold Shoots

Three Dimensional Model of High Grade Gold Shoots created in Geosoft Target.

Rasmussen immediately revised the drill program to reflect this new understanding of gold distribution and since then, at least a third of the holes on the main ore shoot have hit grades of better than 10 grams gold per tonne. As the company progresses towards establishing an underground resource for San Simon, the original Target model is continuously being updated and used to illustrate drill results to shareholders.

"From a business perspective, this kind of technology is helping tremendously," says Rasmussen, president and
COO of Eaglecrest. "There is no question of the impact a three dimensional presentation makes on the average investor." And no question that during this period of accelerated worldwide exploration, explorers that can manage different data sets quickly and effectively, then convey the results to investors in a manner that is easy to visualize and understand, will have a competitive advantage over those who can't.

The record of the past two decades shows that mineral discovery rates have fallen even as the level of investment in exploration has risen to an all-time high. Companies are spending more than ever, but discovering less. To improve their hit rates, they need a means to manage their bourgeoning data.

Having one platform for working with exploration data and GIS data in three dimensions is where Rasmussen sees greatest advantage. "We can incorporate GIS data and exploration data - from technical information to topographic data - and view it all in three dimensions within our Geosoft platform," says Rasmussen. "That's a core strength for our advanced exploration."

In the earlier phases of exploration, when acquiring prospective ground and selecting targets is important, software like Geosoft Target is able to maximize the value of all available data and enable focused perspective to support drill decisions.

Later, as the company grows and takes on more exploration projects or moves into advanced exploration, their Geosoft platform can grow with them, adapting to larger and more complex datasets as a project or company develops.

As Eaglecrest gathers the information required to produce a resource estimate for San Simon, Target continues to unlock the mysteries of the subsurface to ensure that the drilling is focused and effective. As testament to the value of the 3-D model, Eaglecrest has recently been intersecting some of the highest grades the San Simon property has ever produced.

There is also the opportunity to gather insight beyond their immediate drilling area. "Target is very good for cross-sections and it's good for planned view maps, so we've also been able to incorporate satellite images with surface geochemistry as a means of exploring our project outside of where we're drilling," says Rasmussen. "That's another capability that Target provides."

"Exploration technology has made huge leaps in how you incorporate data, grid it, and then present it," says Rasmussen. "The Geosoft platform and Target have worked out really well for us, meeting our technical requirements as well as our business need to effectively present our results to investors."