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Earth Explorer is an online source of news, expertise and applied knowledge for resource explorers and earth scientists.
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March 12, 2013
On Tuesday March 26, 2013 the TGDG will host a selection of speakers for a mini-symposium at Hart House on ‘Laterites or Laterwrongs: Making the Pieces Fit’. Speakers include Ravi Anand (CSIRO), Peter Winterbourne (Vale), and Ron Schonewille (Xstrata)...
March 11, 2013
Hailing from industry, government and academia, high profile Australian and internationally-based researchers will join the CET fortnightly to share their experience on a wide variety of geoscience topics.These seminars are FREE and all interested Geologists are welcome to attend...
February 25, 2013Is regulation robbing exploration properties of their worth?
You can’t get chickens if you don’t allow the eggs to develop. Joe Hinzer, president of geological consulting firm Watts, Griffiths and McOuat (WGM), uses this analogy to illustrate how many early-stage exploration projects are being stifled by current mineral valuation regulations before they have a shot at becoming mines...
February 04, 2013
It has been a busy 24 hours as the Association for Mineral Exploration British Columbia (AME BC) kicked off its Mineral Exploration Roundup 2013...
January 29, 2013Where do I meet the geologists of Africa?
Africa is more than 20 per cent of the world’s land area, is home to 15 per cent of human population but still earns its label as the Dark Continent through generating only 2 per cent of the world’s electricity. Where can you find the geologists exploring this sleeping giant with its inevitable future in the resources sector?
January 28, 2013
As exploration programs focus on remote and concealed targets, the ability to recognize large ore-forming systems – from the most distal margins to high-grade cores – becomes increasingly important. Efforts are therefore under way to generate sophisticated “footprint” or “signature” models of high-value deposits.
December 2, 2012
The December 4th Greenland Day, taking place in Perth, will feature industry and geoscience experts from across the globe, discussing Greenland’s burgeoning exploration opportunities and recent research advances...
November 1, 2012
Some of the sector's leading minds will be looking into their crystal balls on November 8th, trying to summon a picture of what the future might hold for exploration and mining in Canada...
September 11, 2012
Brazilian state-run energy giant Petroleo Brasileiro, or Petrobras, said Tuesday that it had started oil production at the Baleia Azul presalt field in the offshore Campos Basin...
September 11, 2012
Barrick Gold CEO Jamie Sokalsky speaks with Carl Quintanilla on CNBC about Barrick's strategy to drive shareholder value...
September 10, 2012
The tie between energy supply, population, and the economy goes back to the hunter-gatherer period...
July 12, 2012
A massive two thirds of Western Australia remains unexplored for minerals and geologists say the territory presents huge potential...
July 12, 2012
Shale and other unconventional resources are being called the biggest game changer in a generation - and as land and other costs escalate, the industry continues to apply lessons gleaned from the early successes...
July 11, 2012
In this exclusive interview with Professor David Thiel, Director at the Centre for Wireless Monitoring and Applications at Griffith University, he discusses how electromagnetic geophysics can help those who are conducting a feasibility study and opens up on the real cost benefits of this technology...
July 11, 2012
Improved security has started to open up new areas for mineral exploration in Latin America....
Rapid data assessment and dynamic visualization helps to reduce risk and to increase prospecting capabilities in exploration The use of mapping and visualization software is growing day-by day in exploration. This is largely due to speed and efficiency advantages when dealing with greater volumes and diversity of data on PC desktop environments.
The ability to effectively display, rapidly assess and dynamically experiment with multiple datasets has helped to reduce risk and increase prospecting capabilities in exploration. Increasingly, what's required in exploration is software that can handle large volumes of data and multiple data sources and data types, such as geophysical data, geochemical data, drillhole data, satellite imagery, GIS data and any kind of mapping data, within one single environment or transparently linked environments. Utilizing today's visualization tools, geoscientists are able to reduce risk and increase understanding by looking at as much different data as they can, in as many different ways as they can, within compressed project time frames.
Despite the fact that exploration companies are leaner, with fewer people and shorter project time frames, Dr. Michal Ruder, principal of US-based Wintermoon Geotechnologies Inc has seen exponential improvements in productivity and data quality as a result of new software for mapping and visualization. Whereas it used to take weeks to process and interpret geoscience datasets, today it's not uncommon for geoscientists to address the salient issues of interpretations in the course of one or two days.
"I can remember doing batch maps, in paper copies, back in the 1980's," says Dr. Ruder. "Since then, the ability to image geoscientific datasets on a computer screen in real-time, and continual improvements in visualization software, has had an amazing impact on what we can do, as geoscientists, and how quickly we can do it." Interpretation results are also more accurate because geoscientists have the tools to view the quality of the data in every single phase, from initial data processing and quality control through to visualization, integration and the final interpretations.
Dynamic and Integrated Visualization
Equipped with her laptop and mapping software, which includes ArcGIS and Geosoft's Oasis montaj mapping and processing software, it's not uncommon for Dr. Ruder to do interpretations on-the-fly, in collaborative meetings with major Oil and Gas customers. "I can do a lot of work in my clients' offices on my laptop," says Dr. Ruder. 'My mapping software enables a lot of interactivity, and testing of their hypothesis, and I can show customers results in real time."
There are efficiency and quality advantages in being able to dynamically pull customer data in, whether it's well data, satellite imagery or other types of data, and immediately looking at it as part of the interpretation. The dynamic linking of multiple views of imagery, maps, profiles, plots and data in Oasis montaj also provides an easier point of reference for visually linking common features or areas of interest.
This type of rapid assessment and dynamic experimentation depends on the ability to interactively display, and enhance, different attributes in different ways, whether through contrast enhancement, shade relief, angle illumination, two dimensional or three dimensional displays. Speed in creating and recreating visualizations, or refreshment time, is also an important consideration, especially when dealing with large datasets
Three Dimensional Modeling
The use of specialized three-dimensional modeling software, for prospect modeling of salt bodies, can further help to reduce risk in areas such as potential field exploration "It's very prudent to do 3D modeling for prospect modeling of salt bodies when you're considering a very expensive well in deep water," says Dr. Ruder.
One example is the GMSYS 3D application, developed by Northwest Geophysical Associates, which is integrated with, and fully exploits, the three dimensional visualization capabilities of Oasis montaj. Geoscientists can use the software to plot 3D displays of the entire model in one simple step while retaining control over each element in the 3D visualization. The 3D visualizations update automatically during inversion and structure editing. Geosocientists can also add wells, seismic sections, or other vector or raster information to their 3D model visualizations. "We've been using 3D seismic volumes, and approximations of a 3D velocity volume, in our interpretations for some time," says Dr. Ruder. "With modeling software such as GMSYS 3D, we can now convert that to depth and ensure that it makes sense with the observed gravity and magnetic data."
Software and Data Integration
Today's visualization software is required to enable and support the easy integration of different types of datasets, including geoscientific data, satellite imagery and other GIS data into the mapping environment. Working in multiple software environments, is a reality for geoscience consultants like Dr. Ruder who need to meet their needs, as well as the needs of customers with a variety of software preferences. "In general, I find that the software tools I use work well together," says Dr. Ruder. "I also welcome the ability to distribute datasets and grids back and forth between my GIS and mapping software, with new programs like Geosoft's Target for ArcGIS."
While geoscientists recognize that there's a lot to gain by looking at different types of data, Dr. Ruder admits that there is still a tendency, within each discipline, to use the data that they understand the best. "In general, I think people don't realize how easy it is to integrate all of their datasets, whether it's seismic and non-seismic, raster and vector," says Dr. Ruder. "GIS software and Oasis montaj provide some great tools for that."
Carmela Burns is Editor of Geosoft's Earth Explorer Magazine.