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.

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Treading delicate waters

Richard Funk with Tetra Tech’s Marine Mapping Group shares their success using a hovercraft-based EM system to detect munitions around coral reefs in the Caribbean. With a hovercraft, the team was able to survey vulnerable areas previously inaccessible except by more expensive helicopter-based systems, without damaging the coral.

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Give them data and they will come

Geoscience data is to exploration what road systems are to transport: a precompetitive asset that jurisdictions must provide if they hope to foster a viable and sustainable mining industry. This article, which includes an interview with Jon Hronsky of Western Mining Services, looks at the new era of prospectivity and why pre-competitive geoscience data will be essential to mineral exploration as we move into the 21st century.

 

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Corvettes in a cave: applying geophysics to a classic car tragedy

February 12, 2014, was a tragic day for Corvette lovers around the world, when a sinkhole opened up and swallowed 8 classic Corvettes inside the National Corvette Museum. Within hours of the disaster, a team of museum staff, contractors, engineers, karst scientists, and Corvette enthusiasts had assembled onsite to survey the damage and guide the recovery.

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VOXI Magnetization Vector Inversion applied in the Pontes e Lacerda area

VOXI Magnetization Vector Inversion helped identify structures in the Pontes e Lacerda area of southwestern Brazil, a gold district at -12° latitude where magnetic anomalies with inverted polarity are poorly understood, in a study presented by Geosoft at SIMEXMIN 2016.

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Currents, bombs, and ROVs: Bibby HydroMap surveys British waters

Keeping up with growing demand for seabed surveys has led service providers to improve workflows and innovate to deliver time and cost savings for clients. Bibby HydroMap uses Geosoft’s Oasis montaj and UXO software to effectively process and analyze the massive volume of project data, and generate fast results to assist in on-site planning.

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Golden West surveys the Solomon Islands for UXO

Golden West Humanitarian Foundation will be using Geosoft’s Oasis montaj and UXO Marine software when surveying the coastal waters of the Solomon Islands, where villagers have been living under UXO threat since the end of World War II. 

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Inversion modelling helps define kimberlite targets in the Northwest Territories

A filtering process refined by inversion modelling in Geosoft VOXI has given Margaret Lake Diamonds the confidence to select 12 drill targets from more than 60 geophysical anomalies on its 50,000 acre diamond property in the Northwest Territories.

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Methodical approach and 3D insight help NexGen achieve 95% hit rate on its high-grade Arrow zone

By combining 3D geological insight, integrated exploration techniques and comprehensive data compilation in Geosoft Target, NexGen Energy has hit the buried Arrow zone on the Rook I property that straddles the southwest margin of Saskatchewan’s Athabasca basin in almost every hole. 

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Discovery of oceanic gateways could explain East Antarctica melting

The discovery of oceanic gateways could explain rapid glacier thinning in East Antarctica, according to research published by members of the University of Texas Institute for Geophysics, and an international team of collaborators. Inversion of airborne gravity data in Geosoft's GM-SYS Profile and GM-SYS 3D modelling applications, reveals two deep seafloor valleys.

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Medgold selects Geosoft Target for exploration mapping and 3D geology

Medgold Resources, a Mediterranean-focused gold exploration company exploring the orogenic gold provinces of northwest Iberia, selected Geosoft Target as its software for exploration mapping and 3D geology.

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Geosoft MVI provides fresh insights from the Andes to the Arctic

Magnetization Vector Inversion (MVI) is gaining acceptance as an effective tool for subsurface exploration in areas where magnetization does not necessarily run parallel to the Earth’s magnetic field, a more common scenario than geoscientists have traditionally appreciated. 

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Data to discovery: Report from Geosoft’s Vancouver UGM

Stories of data and discovery were shared at Geosoft’s Vancouver User Group Meeting. Project examples range from visualizing diamond pipes in northern Canada to resource modelling in the Golden Triangle of British Columbia and breathing new life into historic data for a project in Cuba.

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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. The company was able to pinpoint the high grade zones by analyzing the alteration characteristics of drill core and combining those results with geology in Geosoft Target for ArcGIS. 

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Best targets yet to be drilled at Promesa’s Alumbre project in Peru

A 3D model of Promesa’s Alumbre project area, using the MVI process exclusive to Geosoft VOXI Earth Modelling, has increased confidence in the exploration model. Further drilling will utilise the new information that MVI brought to the porphyry model.

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Earth Explorer interview: Discovery success linked to big data and the cloud, according to Rio Tinto

Despite a steep appreciation in exploration spending over the past decade, the number of greenfield discoveries is falling every year. Narrowing this gap will require harnessing the power of big data and cloud computing, according to a presentation by Rio Tinto’s exploration chief Stephen McIntosh at this year’s International Geophysical Conference in Melbourne.

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Seeing the shades of grey in 3D inversion

Using 3D models of the subsurface derived from geophysical data is standard practise for guiding exploration in the petroleum industry and has the potential to improve success rates for mineral explorers.

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Earth Explorer expands its network

Recent editorial changes to EarthExplorer.com, sponsored by Geosoft, have expanded community news coverage and added market and discovery intelligence in partnership with global market and applied research leaders: the Metals Economics Groups (MEG) and the Centre for Exploration Targeting (CET). An Earth Explorer networking group was launched on LinkedIn.

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Introduction of Geosoft VOXI Earth Modelling technology

Geosoft demonstrated VOXI Earth Modelling at the PDAC 2012. Accessible 3D modelling technology advances exploration geophysics for improved drill targeting.

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Geophysical analysis helps target prospective areas in Blackwater gold camp

Geosoft CET Grid Analysis was among the tools used by Intrepid Geophysics to help target prospective areas on Greencastle’s Nechako Property in central British Columbia.

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Deep earth imaging discovery success

Deep earth imaging is helping to reveal previously overlooked and undiscovered mineral bodies. Romios Gold is among exploration companies reporting positive results from deep imaging.

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Cutting Edge Prospect Generation

Brian Cellura, generative manager for B.C. - based Miranda Gold Corp, describes their use of GIS and 3D technologies to generate quality prospects and attract joint venture partners. Their story appears in Earth Explorer Magazine. 

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Modelling the Earth through Inversion

In this interview, Geosoft Chief Technologist Ian MacLeod discusses the benefits of 3D inversion modelling and the company’s plans to introduce voxel inversion modelling technology as an online service in 2011.

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There’s gold in this – the development of new CET grid analysis software

A joint project of the University of Western Australia (UWA) and Geosoft, supported by Barrick Gold, has created new CET grid analysis software which is helping explorers improve their interpretations.

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Current Trends in Exploration Technology

Geosoft's product management directors and chief technologist field questions on current demands and the latest advancements in exploration technology.

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New CET grid analysis software helps explorers improve their interpretations

A joint project of the University of Western Australia (UWA) and Geosoft, supported by Barrick Gold, has created new CET grid analysis software which can help explorers improve their interpretations.

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Geophysics helps focus hunt for lost slave ship

Archaeologists at the Iziko Museums of Cape Town are using geophysics to help focus their search for the Meermin, a historically important Dutch slave ship that was wrecked off the Cape in 1766. Geosoft gradient maps were used to decide where to excavate.

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Retooling for the digital data revolution

Important developments in exploration technology are helping explorers to work faster and smarter; share data and knowledge more easily and make sense of larger amounts of digital data for exploration decision-making.

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The new frontier: Exploring for oil with gravity and magnetics

Advancements in earth mapping technologies, coupled with the industry's emerging need to characterize sub-surface systems, have led to a resurgence of interest in using gravity and magnetic methods in Oil and Gas exploration and development.

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Diamond Discoveries in Canada's North: Modern exploration methods lead to significant discoveries

Mining companies are spending more than ever on diamond exploration in Canada and using modern exploration techniques to get some spectacular results. Last year more than $50 million was spent in Nunavut alone on 41 different projects, though few—even within the mining industry—are aware of the scope of the activity.

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Exploration and GIS: Closing the Productivity Gap

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 - exploration mapping software and GIS.

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