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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.
February 25, 2015
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
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
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
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 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
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
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 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 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
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
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
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
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...
January 9, 2015
A collaboration between the U.S. Geological Service and West Virginia University has resulted in a better understanding of the chemicals that spilled into the Elk River in 2014, affecting the drinking water of 300,000 Charleston-area residents...
January 7, 2015
Precipitate Gold Corp announced results from its recently completed Phase 2 induced polarization ("IP") geophysical survey at the Ginger Ridge Zone within the Company's Juan de Herrera project in the Dominican Republic...
December 18, 2014
Integrated Geophysics Corporation (IGC) announced today the successful completion their Eastern Seaboard regional integrated interpretation package. Designed for oil and gas companies needing a First Pass Look at the regional tectonics and structural trends for this new frontier...
December 10, 2014
Integrated within Geosoft’s GM-SYS 3D Modelling software program, VALEM is an improved, interactive solution for sub-salt interpretation that resolves the base of salt from gravity data bound by the constraints of seismic modelling...
December 03, 2014
Petrobras reported the discovery of a natural gas accumulation with the Orca-1 exploratory well drilled on the Tayrona block in the deepwater Caribbean Sea, 40 km offshore La Guajira, Colombia...
March 26, 2015 technology
In many sedimentary basins around the world, 'seeing through' thick or steeply-dipping layers of salt is a major challenge for oil and gas exploration, especially in deep offshore environments. Voxel Assisted Layered Earth Modelling (VALEM) technology promises a significant advance in delineating the boundaries of subsalt structures.
March 25, 2015 expertise
Choosing exploration software can be a difficult, even fraught experience. The more expensive exploration becomes, the more crucial the decision, especially for juniors with projects that have progressed beyond the grassroots stage but are not yet considered advanced. Medgold's Exploration Manager, Jim Royall, shares his criteria for selecting software.
February 27, 2015 library
New approaches for geophysical classification of UXO are helping to save time and money by reducing the excavation of harmless debris. These and other advantages are explained in a series of fact sheets on Geophysical Classification for Munitions Response published by the Interstate Technology & Regulatory Council.
February 18, 2015 applied
Geoscience data is critical to exploration success, and yet spending more and acquiring more data have not translated into dramatically higher discovery rates. Exploration organizations are therefore seeking to maximize the value of their existing data, and technology, to prioritize opportunities and select the best drill targets.
February 18, 2015 applied
Magnetization Vector Inversion (MVI) is a modern technique which 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.
August 05, 2014 expertise
As the utility of gravity and magnetic methods for oil exploration expands, so does the need for more awareness on how these methods can be used to enhance geological interpretations, according to Calgary-based consultant Henry Lyatsky.
July 31, 2014 applied
With drilling costs averaging more than $200 per metre, explorers are looking for ways to improve confidence in the drill targets they choose. Australian junior Promesa Ltd (ASX Code: PRA) believes it may have found an answer in geophysical inversion or, more specifically, Magnetization Vector Inversion (MVI).
July 30, 2014 applied
The Hudbay Minerals’ “vault”, a dedicated room storing more than 80 years of exploration information in floor-to-ceiling filing and map cabinets, is an explorer’s treasure chest - but an inconsistent one prone to gaps, duplication and incompatibility. Thanks to a new data management system, the vault is now becoming obsolete but the priceless files stored within are finding new and greater value on a central server.
July 28, 2014 technology
Magnetization Vector Inversion (MVI) is proving to be an effective exploration guide for two promising projects in South America. Further drilling is planned at Colombian Mines' Mercedes project in west-central Colombia and Promesa's Alumbre project in northern Peru to follow up on promising MVI interpretations.
July 28, 2014 library
Select talks, hosted by the Canadian Exploration Geophysical Society (KEGS), are now online and available to the international explorer community. The seminars cover topics such as potential field geophysics, geophysical 3D modelling and Magnetization Vector Inversion, and the use of Neural Networks for predicting ore deposit target locations.
July 17, 2014 applied
The Geological Survey of Queensland (GSQ) has unveiled QDEX Data, a project that has been two years in the making. The new online system, based on Geosoft DAP Server technology, allows individuals and companies to access Queensland’s survey data seamlessly, quickly, and free of charge, says the Survey's Geoscience Manager Mark Thornton.
July 16, 2014 applied
The recent decline in gold prices has reinforced the importance of delineating deposits that can withstand the vagaries of the market. Coastal Gold is attempting to define a higher grade (2-5+ gpt) zone by integrating geophysical and lithogeochemical data within the geological model to steer exploration.
July 14, 2014 technology
Geosoft previewed new Voxel Assisted Layered Earth Modelling (VALEM) technology at the EAGE 2014 in Amsterdam. Delivered within Geosoft’s GM-SYS 3D gravity and magnetic modelling environment, VALEM is a cloud-based gravity inversion service that improves imaging of base of salt and sub-salt regions.
July 10, 2014 technology
Three rapidly developing technological fields – big data analytics, connectivity/communications (the so-called ‘Internet of Things’), and mobility systems – have the greatest potential for transforming the mining industry between now and 2025, according to a survey by London-based Mining Journal.
July 7, 2014 library
The release of `Geophysics for the Mineral Exploration Geoscientist`, a new book from Cambridge University Press, meets the demand for a minerals industry-focused geophysical textbook written by practitioners for practitioners.
April 2, 2014 technology
Members of Cameco’s exploration team are anticipating a time when their data management is so efficient that they can carve out an extra day in their weekly schedule to look for mines instead of spending those valuable hours searching for and manipulating data.
April 2, 2014 expertise
Energy exploration is moving into regions that have seen little exploration due to security, political and logistical concerns. Specialist geosciences company Bridgeporth has focused on helping explorers to manage these risks.
March 27, 2014 applied
In the early 1980s, the Geological Survey of Norway (NGU) conducted an exploration program in the northern county of Finnmark, a highly prospective greenfield area which encompasses the Karasjok Greenstone Belt. It was the first aeromagnetic and gravity survey of the area and served to establish a preliminary description of its lithology, stratigraphy and mineralizations. New inversion methods are now helping to enhance earth models and interpretation of Norway's Karasjok Greenstone Belt.
March 24, 2014 News&Views
Over the past twelve years, the Petroleum Exploration Society of Great Britain and the Houston Geological Society have jointly established the premier global meeting devoted to Africa’s petroleum geology. The meeting has alternated between London and Houston every September and in 2013 it was London’s turn. For anyone with an interest in finding oil in Africa, the 13th meeting, in Houston, September 2014, is a must.
March 4, 2014 market
Countries where juniors companies contribute substantially to mineral exploration report far more significant drill results than countries that have weaker junior sectors, according to SNL Metals & Mining’s Corporate Exploration Strategies, an annual study. Another trend identified is the growing allocation of spending to late-stage assets at the expense of earlier-stage projects that would provide the next generation of mines.
FEBRUARY 27, 2014 News&Views
GIRAF 2013, the third workshop of the Geoscience Information in Africa network, was held this past September in Accra, Ghana. The event was marked by talks on various African geoscience information projects as well as progress reports on co-operative efforts among companies and organizations in a number of African jurisdictions.
December 12, 2013 applied
Drillhole planning can be a high-risk venture when the available information is limited to airborne geophysical results. But Aben Resources found a way to reduce that risk considerably by using 3D inversion to guide exploration on the Justin project, one of the more intriguing plays to emerge from the recent resurgence in Yukon gold exploration.
December 12, 2013 applied
The Sepon copper-gold mine is a major industrial project in the southern region of Laos. Owned by global resource company MMG Ltd., the massive open-pit operation generated $806 million in revenue in 2012, or 8.5% of Laos's gross domestic product of $9.3 billion. Problem is, the mine's concession area straddles a section of the Ho Chi Minh Trail, which remains heavily contaminated with UXOs. Adopting a geophysics-centric approach has been key to reducing MMG's exposure to risk, and making the land safe for development.
December 12, 2013 News&Views
Thirteen earth science students from Carleton University will spend this winter break in an unusual classroom: the waters and shores of Antarctica. Their opportunity comes via the organization Students on Ice, now in its second decade of taking high school and university students on a two-week, multidisciplinary austral experience.
December 11, 2013 expertise
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 the International Geophysical Conference in Melbourne.
December 10, 2013 News&Views
Founded by Penn State, the University of the Witwatersrand (Wits), and South Africa's Council for Geoscience, the AfricaArray program is enabling students in Africa and America to develop their field experience and share valuable knowledge about the geosciences. The program is committed to supporting the geosciences in Africa by funding postgraduate studies and facilitating student exchange, as well as funding and supporting an annual field school.
November 5, 2013 applied
New research into overwash deposits is improving our predictive understanding of tsunamis and hurricane events to help inform coastal systems response. Researchers at the University of Pennsylvania's Sea Level Research Lab are delineating previously undocumented tsunami deposits from Oman, the Caribbean, Japan, Sumatra, Chile, French Polynesia, and Alaska.
November 5, 2013 library
Over the past two years, data management has become a pressing concern in the exploration community. According to a global survey report released by Geosoft, managing exploration data is now of "critical importance" for 44% of respondents, up from 18% two years ago.
November 5, 2013 applied
More than just a tourist attraction, the cenotes in Mexico's Yucatán Peninsula are the sole source of fresh water in the region. This has posed a serious challenge for ongoing development and prompted a local non-profit group, the Amigos de Sian Ka'an, to commission an airborne EM survey to map the flow of fresh water underground.
October 28, 2013 News&Views
Data integration and 3D modelling have become an integral part of the exploration process. Find out how to develop better targets with 3D exploration, at a a mini-symposium offered by the Toronto Geological Discussion Group (TGDG) and SEG Student Chapter of the University of Toronto.
June 27, 2013 technology
Noront Resources and Brigus Gold are among the growing number of mineral explorers turning to virtual data rooms to satisfy compliance requirements and the ever-increasing information needs of partners and shareholders.
June 24, 2013 applied
When the Aqua Survey team headed into the mountains of southern Laos, it knew the challenges that lay ahead. The company's task: to pit its technical expertise and specialized detection equipment against what is commonly described as the most difficult UXO clearance area in the world.
June 21, 2013 expertise
A relative newcomer to the resource exploration world, gravity gradiometry is already having a major impact. Its potential for producing high-quality data has caused many explorers to take notice and wonder how they might best make use of the technology.
June 12, 2013News&Views
It was standing-room-only at the May 28th meeting of the Toronto Geological Discussion Group (TGDG) as a panel of legal, government and industry experts grappled with the contentious new Ontario Mining Act.
May 29, 2013 discovery
Sometimes exploration success comes down to a decision as routine as choosing the angle of a borehole. That’s what David Jones learned when he drilled the discovery hole at Goldcorp’s Los Filos, now one of the largest gold mines in Mexico, with annual production of more than 300,000 oz.
May 29, 2013News&Views
The Environmental Security Technology Certification Program (ESTCP), in an ongoing partnership with the National Association of Ordnance and Explosive Waste Contractors (NAOC), is sponsoring a series of courses for munitions response contractors and government personnel to learn more about advanced tools for cost-effectively cleaning up munitions-contaminated sites.
May 28, 2013 expertise
In a recent statistics-packed Mining IQ webinar from Sydney Australia, BP’s chief economist Christof Rüehl offered a revealing glimpse into future energy trends. In 2030, the planet’s population will be 8.6 billion, worldwide GDP will be double what it is now, and energy consumption will have grown by 1.6% per year, or 34% more than it is today, according to Rüehl.
May 27, 2013 library
Publication of a new eBook, Advances in Airborne and Ground Geophysical Methods for Uranium Exploration, proves timely as many countries see a rise in uranium exploration. The publication is part of the IAEA’s nuclear energy series (no. NF-T-1.5, 2013).
March 8, 2013 expertise
Matching an exploration target with a geophysical technique can be tricky for an explorer, partly because there are so many options available and partly because there can be significant differences in rock properties even among the same deposit types.
March 8, 2013 technology
An Autonomous Underwater Vehicle-towed magnetometer proves itself in rough weather. The technique could reduce costs and time to complete seabed surveys, with improved accuracies.
March 8, 2013 applied
Company borne out of an academic collaboration benefits both students and industry doing offshore UXO surveys in the North and Baltic Seas.
March 8, 2013 applied
The extensive Karoo Basin of South Africa may hold vast reserves of shale gas. A tectonic modeling project underway will help determine their production viability.
March 8, 2013 library
Fundamentals of Gravity Exploration, authored by Thomas R. LaFehr and Misac N. Nabighian, is a new publication now available from the SEG Book Mart. The book covers a full range of gravity-exploration topics, including first principles, field instrumentation and operations, rock densities and density contrasts, data reduction, methods of interpretation, and geologic examples. The subject matter includes inversion and an appendix on the Fourier transform.
March 7, 2013 technology
Geosoft presented new workflows for geological subsurface modelling at PDAC 2013 in Toronto, adding to its integrated platform for earth exploration. The workflows include 3D wireframing and interpretation tools that make the modelling of subsurface geology faster and more effective for mineral explorers.
February 26, 2013 technology
Marine surveyors will soon be able to use new UXO Marine software to process data collected with TVG (Transverse Gradient) and other fixed-array systems with greater accuracy, and less risk of re-acquiring data and missing UXO targets.
February 25, 2013News&Views
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.
January 29, 2013 News&Views
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 library
Minalliance, a Montreal-based organization created jointly by the Québec Mineral Exploration Association and the Québec Mining Association, has published an ebook listing 100 technological improvements in exploration and mining. Inversion algorithms rated as the #1 exploration innovation. Other exploration innovations included: ICP-MS analyses, gas geochemistry and airborne gravimetry.
January 28, 2013 News&Views
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.
January 24, 2013 applied
Often not given its due in oil and gas geophysics, knowledge of basement geology can be critical to exploiting reservoirs including the unconventional. When it comes to undertanding basement geology, gravity and magnetics can be just as important as seismic methods.
December 2, 2012 News&Views
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 expertise
Given how the rules have evolved since their introduction more than decade ago (the last adjustment was in June 2011), it's not surprising that there remains some confusion around NI 43-101 compliant disclosure of exploration results. In this post, Virginia reviews some of the main infractions, and provides pointers on things to watch for.
September 11, 2012 expertise
What if you could generate a map that identified not only exploration targets, but also the likelihood of those targets becoming economic deposits? The authors of the cover article for July's edition of SEG Newsletter say this kind of "radical approach" to exploration is both possible and necessary.
August 3, 2012 News&Views
As African countries seek to attract further mining exploration investment, the importance of effective, efficient cadastral systems and high-quality survey data is becoming ever clearer. The first International Mining for Development (IM4DC) course into Africa, conducted in Burkino Faso from May to July 2012, focused on the integration of cadastral, geoscience and satellite data for mining exploration and development. It’s part of a longer term capacity building process supported by industry, Australian education and government agencies.
July 23, 2012 market
Michael Chender, CEO, Metals Economics Group reports: MEG's Pipeline Activity Index (PAI) drifted downward in May-June, with the squeeze on financings and a fall in industry equity valuations to its lowest level in two years offset by a continuing high level of new junior resource announcements; the legacy of strong exploration in the past several years.
July 20, 2012 market
Several juniors have jumped on the graphite and vanadium bandwagon, hoping that new sources of demand for these strategic minerals, mostly from battery applications, will make their exploration projects viable.
July 20, 2012 discovery
At a time when most junior explorers are struggling to attract market attention, Toronto-based Energizer Resources enjoyed a 27% share price gain for the first half of June on the strength of its growing graphite-vanadium resource in Madagascar.
July 19, 2012 expertise
Aiming to be the greenest mine in America, American Vanadium Corp. is evaluating the use of integrated solar and wind electric power backed by a vanadium flow battery (VFB) to run its entire operation with power to spare.
July 19, 2012 technology
The recent rush to find graphite and vanadium deposits to satisfy potential demand in green energy applications is reigniting airborne electromagnetic (EM) methods as highly effective exploration tools.
July 17, 2012 MINING EXPLORER
The relatively young Ring of Fire exploration camp in northern Ontario has the opportunity to become a global model of responsible development where First Nations groups, mining companies and the provincial government work together to transition from exploration to production in a way that benefits all.
June 5, 2012 applied
Application of aeromagnetic structural analysis techniques for greenfields gold exploration are proven in the field. Experimental results demonstrate there is a high correlation between known mineralization and the regions of structural complexity that are generated by the proposed method.
June 5, 2012 library
There was no path to guide field mapper Mary Albanese through the Alaskan wilderness in the 1980's. Only brush, trees, and rocks – an unchartered, seemingly endless stretch of rocks. Her memoir Midnight Sun, Arctic Moon: Mapping the Wild Heart of Alaska is the story of Albanese's life and journey as an arctic geological explorer.
June 4, 2012 Expertise
As the planet's easy-to-find petroleum resources mature, deep offshore exploration and production lead the trend to the more difficult and challenging regions. Eni is one of a handful of leaders.
June 4, 2012 Expertise
Greenfields-related research conducted by the Centre for Exploration Targeting is aiding industry efforts to look deeper. Innovation holds the key to bringing down the cost of making new, deeper, discoveries and securing future resource supplies.
June 4, 2012 Discovery
Knowing when to drill and when to walk away is essential in greenfields exploration. Explorers weigh in on market realities impeding the search for greenfields , and what it will take to meet the demand for quality finds.
June 4, 2012 applied
For juniors constrained by limited resources, usable and inexpensive government survey data is often the key to stimulating and advancing greenfields projects.
June 3, 2012 Technology
Researchers at the Perth-based Centre for Exploration Targeting (CET) are developing an exploration simulator for training purposes. The aim of exSim is to improve the performance of explorers through simulated training.