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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

April 8, 2015

New data on DAP: SRTM 30m for Europe and Africa

Shuttle Radar Topography Mission (SRTM) 1 Arc-Second Global elevation data at a resolution of 1 arc-second (30 meters) are now available for Europe and Africa on the Geosoft Public DAP Server...

April 7, 2015

IBAAS 2015 symposium focuses on development of aluminium industry in China

The International Bauxite, Alumina & Aluminium Society (IBAAS) is hosting an international symposium on "The Development and Future of Aluminium Industry in China - Reality and Dream” November 25-27, in cooperation with the China Aluminium International Engineering Corporation Limited (CHALIECO) and Suzhou Research Institute for Non-ferrous Metals Co. Ltd (SINR)...

March 26, 2015

Medgold and Centerra Start Drilling at Lagares, Portugal

Medgold's first drilling campaign on the Lagares project in Portugal, a 3,000 metre diamond core drilling program, started yesterday targeting high-grade gold mineralization identified from recent channel-chip sampling. The Lagares project is joint ventured to Centerra Gold Inc...

February 27, 2015

Massive Amounts of Saharan Dust Fertilize the Amazon Rainforest

Every year, millions of tons of nutrient-rich Saharan dust cross the Atlantic Ocean, bringing vital phosphorus and other fertilizers to depleted Amazon soils. New study quantifies the connection between Earth's largest temperate desert and its largest tropical rainforest...

February 25, 2015

NexGen Drills Best Angled Hole to Date: Discovers New High Grade Zone at Arrow

NexGen Energy Ltd. announced ongoing results from their winter 2015 drilling program at their our 100% owned Rook I property, Athabasca Basin, Saskatchewan...

February 24, 2015

Phase II drilling underway on Kootenay's La Negra

Kootenay Silver Inc. announced that camp upgrades are complete and Phase II drilling has now commenced on its La Negra Silver discovery, contained within the Promontorio Mineral Belt in Sonora, Mexico...

February 23, 2015

Explorer Speaker Series at the PDAC

Geosoft's Explorer Speaker Series at the PDAC 2015 includes presentations on Peregrine's Chidliak Project and Cameco's initiatives to increase efficiency and 'harvest time' through data organization...

February 18, 2015

Largest Dam Removal in U.S. History Scientifically Characterized

The effects of dam removal are better known as a result of several new studies released this week by government, tribal and university researchers...

February 18, 2015

Exeter outlines the significance of its Caspiche Project water discovery

Exeter Resource Corporation has announced further positive results from the expanded water exploration drilling program for its Caspiche gold-copper project in northern Chile...

February 17, 2015

Earthstar Geographics Releases Arctic Ocean 15-Meter Satellite Imagery Mosaic

In response to the rapidly increasing demand for high quality geodata of the Arctic Ocean, Earthstar Geographics LLC has compiled a detailed satellite imagery mosaic of the entire region and released it in map projections optimized for visualizing the northern polar areas...

February 11, 2015

Geophysics and Geology together for Discovery: Geosoft at ASEG-PESA

Geosoft's program for the ASEG-PESA, February 15-18 in Perth, includes a workshop on practical geophysical workflows for resolving common problems in minerals targeting...

February 9, 2015

Pilot Gold Reports Final 2014 Results from Columbaz Discovery at TV Tower

Pilot Gold announced the final 2014 results from its third gold rich porphyry discovery at TV Tower, located 6.5 kilometres north of the Valley and Hilltop porphyries...

February 5, 2015

Coastal Gold finds the high grade

Coastal Gold has defined a high grade resource at its 100%-owned Hope Brook gold deposit in Newfoundland by developing a 3D model that has tighter constraints and focuses on higher grade drill results.

February 4, 2015

Non-seismic Geophysics

Finding Petroleum is hosting a half-day event on the role of non-seismic geophysical techniques. Are they coming of age? Reserve your space for this free event, being held in London, February 19.

January 27, 2015

Factors Driving 2015 U.S. Oil Output

Rig counts are a highly imperfect guide to future oil production but they are one of the few readily available statistics on oilfield activity so it is unwise to dismiss their importance entirely...

January 23, 2015

Will 2015 Break this ‘Dry Spell’ for New Discoveries?

Steve Todoruk, a broker with Sprott Global Resource Investments, explained in Sprott’s Thoughts recently why ‘juniors’ should look for new discoveries by drilling into the unexplored depths near existing mines...

January 20, 2015

Eni Wins Two Exploration Licenses in Norway

Italian oil and gas group Eni said on Tuesday it had won two exploration licenses in the Barents sea and in the North Sea in Norway...

Exploration and GIS: Closing the Productivity Gap

by Carmela Burns and Virginia Heffernan

 

Exploration and GIS

Geologists can now create and share their 3D models across Geosoft and ESRI ArcGIS environments.

Exploration software and Geographic Information Systems (GIS) are essential for geologists searching for petroleum and mineral deposits. With discoveries harder to find, geoscientists are collecting more data than ever before and examining their findings with greater scrutiny.

The key to keeping the whole process efficient and focused is technology.

GIS and exploration software has come a long way in the past 10 years, especially visualization and 3-D modeling. But, until recently, the inability to work and share data between earth mapping software like Geosoft and ESRI’s ArcGIS application environments has left a gap for explorers.

As software developers on both sides of the gap begin to collaborate, technology and solutions are now evolving to allow geoscientists to share data easily between their mapping and GIS environments.

Geographic information systems have been used for 2-D mapping for decades; however, the limited ability of GIS to visualize below the earth's surface means exploration companies have had to resort to work-arounds. As a result, geoscientists tend to store their geological, geophysical and geochemical information in one database, and their surface spatial (GIS) data in another, with no efficient way of merging the two.

Although geoscientific data can be moved in and out of a GIS environment, doing so is time-consuming and can result in lost, changed or corrupted data.

For consulting geophysicists like Michal Ruder, whose livelihood depends on delivering accurate, up-to-date maps to clients in the oil and gas sector, recent advances in integrated GIS exploration tools mean smoother workflow and higher productivity in both 2D and 3D environments.

"Most of the time I work with gridded data, and I can manipulate it with ease using Geosoft exploration software, Oasis montaj and Target," says Ruder, who is principal of Denver-based Wintermoon Geotechnologies. "That's not the whole solution, though, because after I've processed the gridded data, I need to integrate it with vector data. That means putting my magnetic and gravity data into the geographic context of my exploration problem."

Exploration and GIS

Fence diagram generated using Geosoft's Target for ArcGIS extension software.

After moving the data into ESRI's ArcGIS, Ruder uses Geosoft extension software, Target for ArcGIS, to see geographic and other associations. She then searches for patterns in the Geosoft grids and ArcGIS vector data.

Geosoft is working to close the exploration GIS gap entirely with its recent introduction of earth mapping software that has ArcGIS Engine technologies built in. The new generation of Geosoft Target and Oasis montaj software allows geoscientists to work seamlessly between their Geosoft and ESRI environments using ESRI technology to display Arc.mxd and .lyr files without leaving the Geosoft environment.

The breakthrough is expected to boost productivity and result in smoother workflows for geoscientists in both the private and public sectors. It will also prevent data from being changed or lost.

"With this software, geoscientists have greater flexibility and control in achieving the results they need," says Louis Racic, Director of Product Management for Geosoft Inc.

Closing the gap between GIS and geoscience also benefits large companies with multiple users and data sets. The more integrated their exploration software is, the less likelihood of costly mistakes or missed opportunities for discovery.

Ana Maria Gonçalves is information manager for the exploration and project development division of Brazil-based Companhia Vale do Rio Doce (Vale), one of the largest mining companies in the world with 14 regional exploration offices. "As we become more global, being able to share information and expertise with other regions is increasingly important," says Gonçalves. "In the past, our exploration applications didn't connect with our GIS. We had to make all sorts of conversions, and with data sets such as geophysical grids, you can lose important information when you try to convert the data to other formats."

Exploration and GIS

There is better access to exploration tools, such as this 3D lithology selector, within ArcGIS.

Adopting Geosoft Target for ArcGIS has done away with the need for data conversion, says Gonçalves. "Using Target for ArcGIS, our geoscientists can work with their geophysical, geochemical and geological data within the ArcGIS environment much more quickly and effectively."

On a broader scale, trends in mineral exploration show there's a need for better integration of GIS and geosciences. Most ore deposits with a surface expression have already been found, so 3-D information from the subsurface - particularly geophysical data - is becoming the main pathfinder to discoveries.

Taking a tool known for excellent spatial analysis on a 2-D plane and integrating it with software that can handle multiple 3-D data sets from the subsurface makes the search for these deposits a whole lot easier. It's a development whose time has come.