Geological Survey of Tanzania (GST) and Ministry of Energy and Minerals of Tanzania have organized the Workshop “Launching High Resolution Airborne Geophysical Data at Julius Nyerera Convention Center (17 January, 2014, Dar es Salaam, Tanzania). Around 150 delegates have attended the workshop from government and private sectors.
Permanent Secretary (PS) of Ministry of Energy and Minerals Mr.Eliakim Maswi said – the surveys were carried out under the Sustainable Management of Mineral Resources Project, saying the purpose of the survey was to identify potential zones of mineralization. “The main objective of the project is to improve the socioeconomic impacts of mining for Tanzania and Tanzanians and therefore enhance local and foreign investments”, said PS.
GST Chief Executive Officer , Prof. Abdulkarim Mruma said: “geophysical data acquired through the high resolution airborne geophysical surveys allow fast and accurate delineation of mineralised targets and when augmented with geological and geochemical datasets are highly effective in attracting new exploration ventures.” Prof. Mruma noted that the availability of the modern geo-scientific data will stimulate investments into mineral and other sectors and will improve the effectiveness of exploration programs.
by VIRGINIA HEFFERNAN on 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.
“In a lot of cases, we have the data but we haven’t got the most out of it because of time constraints and our ability to find or “discover” this data,” Amanda Butt, McIntosh’s colleague and former manager of exploration and geophysics, said in a follow-up interview with Earth Explorer. “Now that we can do things more quickly, and efficiently we can get more effective information out of the data.”
Geophysics, in particular, has become an increasingly important exploration tool as the depth of the average discovery moves from close to surface in the 1950s to hundreds of metres deep. Indeed, geophysics contributed significantly to nine of the 16 greenfields discoveries Rio Tinto has made since 1996, including the Diavik diamond mine in Canada and more recently at the La Granja copper project in Peru.”
8:30 AM – 4:30 PM
Delineation of regional and local fault networks, which gravity and magnetic data enable, is crucial in both conventional and unconventional exploration and production. In frontier regions, these data help to delineate the raised and subsided crustal blocks and depocenters, as well as the distribution of igneous rocks.
The course reviews all stages of gravity and magnetic survey design, as well as data acquisition and geological interpretation. These steps are put in the context of designing and executing overall exploration programs for both conventional and unconventional targets.
A complete set of course materials and lunch is included in this course.
He was born in St. Petersburg, Russia and moved to Calgary as a teenager. He holds a B.Sc. in geology and geophysics (1985, University of Calgary), an M.Sc. in geophysics (1988, University of Calgary) and a Ph.D. in geology (1992, University of British Columbia). He is the first or sole author of three books (Springer-Verlag) on the regional geology and geophysics of western Canada, two gravity and magnetic atlases of the Alberta Basin (Alberta Geological Survey) and many papers. He is a member of CSEG, MEG and APEGA.
Henry is a past president of the Mineral Exploration Group, a province-wide mining-industry association in Alberta. To avoid the downtown rat-race and congestion, he works from home, enjoys the free space of the Alberta outdoors, and loves nothing better than in-depth history books and good hikes in the mountains.
A seminar to honour Professor Emeritus Tadeusz Ulrych will be held in Vancouver, B.C. on Thursday September 5, 2013. It will be a day of invited talks on a range of topics related to signal processing and geophysics in honour of our friend and teacher, Tad.
Date: Thursday September 5, 2013
Venue: University Golf Club Vancouver, BC
Presentations and lunch: 9:00 a.m. – 5:00 p.m.
Reception: 5:00-7:00 p.m.
Speakers from international academia and industry include:
Click here to view the preliminary version of the SAGA 2013 Conference technical programme. A pdf version of the programme is also available for for viewing or download.
Click here to view the preliminary version of the AEM 2013 Conference technical programme. A pdf version of the programme is also available for for viewing or download.
The workshop/tours list will be finalised end of July. Depending on registration numbers, some workshops will be cancelled and others will go ahead. Please register soon before end of July. Final workshop programme will be updated in August. The following workshops and short courses will be available during the conference. Download Workshops and Short Courses Information Pack.
Mr. Greg A. Shore, (P.Geo., Premier Geophysics Inc., Aurora, Ontario) is going to make a presentation:
“New depths of insight from the 3D earth imagery delivered by 3D DC data acquisition systems: field case examples from Nevada, New Zealand and British Columbia”
Date: Tuesday 14 May, 2013 @ 4:00PM
Venue: ESC 2093, Department of Earth Sciences, 22 Russell Street (2nd floor), University of Toronto
Abstract: The acquisition of a uniformly-distributed, all-directional, dense and deep-sensing (“true 3D”) DC geo-electric data set can provide the field observations needed to guide and constrain a 3D data inversion to a model earth result that is as objective and as subtly resolved as is practically possible. Whether the field acquisition technology is distributed or tethered, it is the data set itself that counts, and all 3D systems today (E-SCAN, ORION, NEWDAS) deliver the optimized true 3D field data sets as characterized above.
Having providing the hard-data basis for an enhanced level of trust in subtle image patterns, the new 3D imagery can help to understand both the anomalous targeted features and the often-subtler alteration envelopes or settings that may accompany them. These previously-unseen alteration patterns may themselves represent new resource targets. They can also provide guidance as to the probable location of otherwise non-responsive targets of interest, resource zones that are perhaps too small in volume or too weak in response to be directly identifiable with any geophysical technology.
We show how 3D alteration pattern imaging indirectly locates the otherwise geophysically-invisible Gwenivere ore veins at Great Basin Gold’s Hollister mine, and how that signature leads to nearby targeting. Another Hishikari-like setting in New Zealand and an answer to narrow-vein mapping problems in the Toodoggone (BC) district illustrate the new opportunities to understand not just ore signatures, but the imprinted patterns of entire hydrothermal signatures on host lithology.
This is a 2-day workshop consisting of 1 day of lectures (April 24th) followed by a 1 day hands-on workshop (either April 25th or 26th). Delegates can register for just the lectures or both the lectures and workshop.
Registration available until April 15th at: www.bcgsonline.org
Date: April 24th – 26th 2013
Address: SFU Downtown Campus; Vancouver BC
Registration: Registration is now open! Please fill out attached pdf form (link below) and click submit. Registration will be complete once payment is made via Paypal link. Delegates are asked to choose one workshop day among April 25th or 26th.
Day 1 – Introduction to inversion
– Introduction to inversion in exploration
Reasons for doing inversion
Range of inversion options: magnetics, gravity, EM, IP-resistivity, seismic
Fitting geology and data
– Background on inversion
Joint and collaborative
The future of inversion
– Before inversion – forward modeling
petrophysics drives the story
complexity vs. adequacy
– Case studies
Day 2 – Workshop with Case studies
Multi-disciplinary teams will use geological, geophysical and geochemical data from two deposits (Babine Lake porphyry Cu-Mo, BC and Minto Cu, YK) to develop exploration targets. Teams will present their evaluations of the data to stimulate group discussion.
Inversion results for the available geophysical surveys will be presented to demonstrate state-of-the-art technology and best practices.
Sponsors for the short course are currently being solicited. Please contact Victoria Sterritt at Victoria.Sterritt@teck.com for details. Proceeds go to the KEGS Foundation.
For those interested in more information about the short course, please email firstname.lastname@example.org
MicroSeismic, Inc. announced that Peter Duncan, Ph.D. will be honored for a lifetime achievement in geophysics at the Geophysical Society of Houston (GSH) and Society of Exploration Geophysicists (SEG) 2013 Spring Symposium on March 5 and 6. As part of the symposium, Peter will host a Challenge Bowl on March 5 and will be the guest of honor at the March 6 banquet toasting and roasting him.
“I am extremely surprised and grateful to receive this prestigious honor and join a group of honorees for whom I have deep admiration,” stated Peter Duncan, Ph.D., Founder and CEO of MicroSeismic. “I have dedicated my life to the study of geophysics and the advancement of that field of work; to be honored by these two organizations means the world to me.”
Peter is an active volunteer with many organizations including GSH and SEG. He chaired GSH’s Continuing Education Committee for two years and SEG’s Continuing Education Committee for three years. In the late 1990′s, he was responsible for creating the SEG Distinguished Instructor Short Course format. Peter served as the SEG President in 2003 and in the fall of 2008, he was the SEG/AAPG Distinguished Lecturer and spoke on the subject of passive seismic at 45 venues around the world. His most treasured accomplishment with SEG is the development of the successful Challenge Bowl where he continues to be its biggest promoter and host. Challenge Bowl events are held annually around the world, with local and regional eliminations leading to a world championship at the SEG Annual Meeting.
For registration and details of event visit http://www.gshtx.org/en/cev/932.
Pennsylvania Council of Professional Geologists announces Resistivity/IP/SP for Environmental and Engineering Applications Short Course on February 27, 2013 in Harrisburg, PA. The course instructor will be Brad Carr, Ph.D (formerly of AGI). This 1-day short course will cover DC Resistivity, IP, and SP topics such as: theory; data acquisition; field procedures; data processing; data presentation; and interpretation. The course will also provide attendees a better understanding of the strengths of 1D, 2D, 3D and 4D resistivity/IP imaging and SP monitoring methods through the discussion of various case histories, survey design, forward modeling and inversion and the use of data processing/analysis software as applied to surface, borehole, marine and time-lapse monitoring data.
Electrical Resistivity/IP/SP for Environmental and Engineering Applications is designed for professionals who are involved in, beginning to consider, or have oversight/review responsibilities of others currently conducting DC Resistivity, IP or SP surveys on engineering or geotechnical projects.
This 1-day short course will cover DC Resistivity, IP, and SP topics such as: theory; data acquisition; field procedures; data processing; data presentation; and interpretation. The course will also provide attendees a better understanding of the strengths of 1D, 2D, 3D and 4D resistivity/IP imaging and SP monitoring methods through the discussion of various case histories, survey design, forward modeling and inversion and the use of data processing/analysis software as applied to surface, borehole, marine and time-lapse monitoring data.
Land seismic is currently undergoing what, in a generally slowly evolving field, amounts to a revolution. This revolution involves the use of a variety of new technologies but is principally concerned with reduction. The introduction of high channel-count recording systems has enabled reliable point-receiver acquisition. Coupled with advanced data processing techniques this enables a reduction in the number of sensors required on the crew. This in turn results in reduction in the number of crew members and thus survey cost, including the environmental cost. Acquisition cost can also be reduced through the use of advanced source acquisition methodologies that reduce the source cycle time (the time taken between the acquisition of records). An increase in the size of vibrators has also allowed a reduction in the number of vibrators on the crew and their related logistic burden.
An area of particular interest currently is the recording of data with enhanced the low-frequency content of the data. Increased low-frequency content has a variety of benefits, it helps overcome the high-frequency attenuating effects of the earth, improves vertical resolution, enhances inversion results, and improves: velocity analysis, minimum phase deconvolution and wavelet estimation. Acquiring such data involves lowering both the minimum frequency transmitted by the source as well as the ability of the sensors to record such frequencies.
January 31, 2012
Texture Analysis of High Resolution Aeromagnetic Data to Delineate Geological Features in the Horn River Basin, NE British Columbia
Hassan H. Hassan, Fugro Gravity and Magnetic Services
The 2012 Maxwell software training schedule and booking form is now available. Please see the PDF below.
Many hardware and software queries can be answered by EMIT staff over the phone. However, for more intensive personalised training, we can organise one-on-one training sessions either at your workplace or at our office in Midland. Alternatively, customised sessions for your acquisition or interpretation groups can be held at your organisation using your data.
| EMIT Workshop Schedule and Booking Form 2012 (Maxwell and CSIRO)
EMIT Workshop Agenda – Maxwell
EMIT Workshop Agenda – CSIRO
Participants are encouraged to book four (4) weeks ahead to ensure their desired workshop dates. Each workshop will be confirmed only when the minimum of four (4) bookings have been received. Workshops are limited to ten (10) participants.
MATT HALL: “This year is the 20th anniversary of the release of Seismic Un*x as free software. It is six years since the first open software workshop at EAGE. And it is one year since the PTTC open source geoscience workshop in Houston, where I first met Karl Schleicher, Joe Dellinger, and a host of other open source advocates and developers. The EAGE workshop on Friday looked back on all of this, surveyed the current landscape, and looked forward to an ever-increasing rate of invention and implementation of free and open geophysics software.
Rather than attempting any deep commentary, here’s a rundown of the entire day:..”
Geoscience Australia Record 2012/04 contains abstracts from the Australian Society of Exploration Geophysics (ASEG) Natural Fields EM Forum 2012, held at the recent ASEG 2012 Conference in Brisbane.
The report is a collation of abstracts presented at the forum and reviews the current state-of-the-art use of natural EM fields in exploration applications. It also includes details of significant developments in acquisition, processing and interpretation methods in recent years, many of which have been made possible through ready access to increased computing power, both in the field and in post-acquisition processing facilities.
Principally, these applications involved aspects of ground-based MT and AMT methods, but also included airborne techniques (e.g., ZTEM) which use only natural EM fields as an energy source. The abstracts cover a wide range of applications of natural EM fields which are used in the search for minerals and energy resources and range from the development of broad-scale regional models to direct detection of drill targets.
The record is available as a free download.