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Latest Geophysics Stories

The Cluster constellation
2013-09-12 05:02:16

[ Watch the Video: Earth’s Plasmasphere and the Van Allen Belts ] April Flowers for redOrbit.com - Your Universe Online For more than half a century, the invisible bubble created by Earth's magnetic field - the magnetosphere - has been studied by space missions. The discovery of Earth's radiation belts in 1958 was one of the first scientific breakthroughs made by a spacecraft. The Explorer 1 satellite revealed two concentric, tire-shaped belts of highly energetic (0.1–10 MeV)...

2013-09-10 20:20:41

GOLDEN, Colo., Sept. 10, 2013 /PRNewswire/ -- Golden Minerals Company (NYSE MKT: AUMN; TSX: AUM) ("Golden Minerals" or "the Company"), a precious metals mining company with primary assets in Mexico and Argentina, reports continued progress with its work at the Velardena Operations in Durango State, Mexico. The Company previously announced it suspended operations at the Velardena mine on June 19, 2013 due to depressed silver and gold prices, and that the suspension was enacted to best...

2013-09-10 08:22:29

TORONTO, Sept. 10, 2013 /PRNewswire/ - Roxgold Inc. ("Roxgold" or "the Company") (TSXV: ROG) is pleased to announce that it has commenced a 1,600 metre diamond drilling program on the  Bagassi South target at its 100% owned Yaramoko permit located on the Houndé Greenstone Belt in Burkina Faso. This drilling will be conducted by Falcon Drilling Burkina Faso and will follow up on existing results announced by the Company on July 09, 2013. HIGHLIGHTS --...

2013-09-10 04:20:42

TORONTO, Sept. 10, 2013 /CNW/ - Alacer Gold Corp. ("Alacer" or the "Corporation") [TSX: ASR and ASX: AQG] announced today that the Board of Directors (the "Board") has appointed Richard P. Graff as interim Chairman of the Board.  Timothy J. Haddon and Rohan I. Williams have each resigned from the Board, effective immediately. As part of Alacer's new corporate strategy to focus on Turkey in the near-term and the surrounding region in the medium to long-term, the Board is seeking...

2013-09-04 08:24:04

Geotrace names Former ExxonMobil and Halliburton E&P Leader Mingqiu Luo as Chief Geophysicist and Manager of Its Technology Imaging Group HOUSTON, Sept. 4, 2013 /PRNewswire/ -- Geotrace Technologies Inc. (www.geotrace.com), an industry leader in high resolution E&P solutions, announced Dr. Mingqiu Luo as Chief Geophysicist and Manager of the Imaging Group within Technology. Luo will be based out of Geotrace's headquarters in Houston. Luo brings more than 13 years of experience...

2013-09-03 23:21:16

Tricon Geophysics Selects Alacritech to Accelerate Workflow for 2D and 3D Seismic Imaging San Jose, CA (PRWEB) September 03, 2013 Alacritech, the pioneer in NFS storage acceleration, today announced that Tricon Geophysics (http://www.tricongeophysics.com/) has deployed Alacritech’s ANX 1500 Network File System (NFS) acceleration appliance to deliver dramatic performance improvements to their 2D and 3D seismic imaging services. Tricon Geophysics’ services involve massive amounts of...

2013-09-03 12:22:23

SALT LAKE CITY, Sept. 3, 2013 /PRNewswire/ -- FX Energy, Inc. (NASDAQ: FXEN) announced today that the Company will make a presentation at the Euro Pacific Global Investment Conference 2013 in New York on Tuesday, September 10, 2013. The presentation is scheduled for 2:30 p.m. Eastern time. A link to the webcast will be available on the homepage of the FX Energy website at www.fxenergy.com. For those unable to participate during the live webcast, the presentation will also be...

2013-09-03 08:23:22

VANCOUVER, Sept. 3, 2013 /PRNewswire/ - Goldgroup Mining Inc. ("Goldgroup" or the "Company") (TSX:GGA, OTC:GGAZF, BMV SIX:GGAN.MX) is pleased to announce the closing of the acquisition (the "Transaction") of a 100% interest in the Cerro Prieto Project (the "Project") from Oroco Resource Corp. ("Oroco"), previously announced January 28, 2013. Due to the current market conditions and the deterioration of the gold price since January 2013, Goldgroup and Oroco have agreed to...

2013-09-03 08:23:17

HOUSTON, Sept. 3, 2013 /PRNewswire/ -- Gastar Exploration Ltd. (NYSE MKT: GST) ("Gastar") announced today that Gastar Exploration USA, Inc., the wholly-owned subsidiary of Gastar, has declared a monthly cash dividend on its 8.625% Series A Preferred Stock ("Series A Preferred Stock") for September 2013. The dividend on the Series A Preferred Stock is payable on September 30, 2013 to holders of record at the close of business on September 13, 2013. The September 2013 dividend...

2013-08-28 12:21:34

TORONTO, Aug. 28, 2013 /CNW/ - NWM Mining Corporation ("NWM" or the "Company") (TSX-V: NWM) is pleased to provide an update on mining operations at the company's new Gold Ridge open pit.  The Gold Ridge zone of mineralization is located approximately 300m west and runs approximately parallel to the Lluvia de Oro open pit ("Creston pit") which has been the source of essentially all the ore mined to date at the Lluvia de Oro site.  As of the end of July 2013 the company has mined...


Latest Geophysics Reference Libraries

Astronomy & Geophysics
2012-06-04 19:00:47

Astronomy & Geophysics (A&G) is a peer-reviewed scientific journal published by Wiley-Blackwell on behalf of the Royal Astronomical Society (RAS). It was established in 1960 as The Quarterly Journal of the Royal Astronomical Society; the name was changed in 1997. As of May 2012, the editor-in-chief is Sue Bowler (University of Leeds). The journal covers astronomy, astrophysics, cosmology, planetary science, solar-terrestrial physics, global and regional geophysics, and the history...

Reviews of Geophysics
2012-05-28 10:18:52

Reviews of Geophysics is a peer-reviewed scientific journal published quarterly by the American Geophysical Union. It was established in 1963. Between February 1970 and November 1984 it was named Reviews of the Geophysics and Space Physics. As of May 2012, the editor-in-chief is Mark B. Moldwin (University of Michigan). Reviews of Geophysics is a review publication by invitation only, and provides an overview of geophysics research. Furthermore, the journal integrates summations of...

Physics Of The Earth And Planetary Interiors
2012-05-01 10:08:14

Physics of the Earth and Planetary Interiors is a biweekly published peer-reviewed scientific journal published by Elsevier. As of April 2012, co-editors are G. Aelfric (University of Bristol), K. Hirose (Tokyo Institute of Technology), M. Jellinek (University of British Columbia), and K. Zhang (University of Exeter). This journal focuses on the physical and chemical processes of planetary interiors. Topics covered include planetary physics, geodesy and geophysics. Publishing formats...

Geophysical Journal International
2012-04-29 19:47:50

Geophysical Journal International is a peer-reviewed scientific journal publish monthly by Wiley-Blackwell on behalf of the Royal Astronomical Society and the German Geophysical Society. The editor-in-chief is Jeannot Trampert of TA Utrecht, the Netherlands. The primary focus of this journal is fundamental research in Geophysics. Publishing formats are original research, research notes, letters, and book reviews. Coverage includes computational, theoretical, observational and applied...

0_5badd37024d78e3386e67ababbfe35a0
2010-11-15 18:30:29

The Richter scale assigns a single number to quantify the amount of seismic energy released by an earthquake. The scale uses a base-10 logarithm by calculating the logarithm of the combined horizontal amplitude of the largest displacement from zero on a particular type of seismometer. A earthquake measuring 5.0 on the Richter scale has a shaking amplitude 10 times larger than one that measures 4.0. The moment magnitude, calibrated to give generally similar value for medium-sized...

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