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Last updated on April 18, 2014 at 21:21 EDT

Latest Geochemistry Stories

2014-04-08 08:25:02

VANCOUVER, April 8, 2014 /PRNewswire/ - Bear Creek Mining (TSX Venture: BCM) ("Bear Creek" or the "Company") is pleased to provide updates on its exploration programs in Peru. The Company maintains a cost effective generative exploration program alongside its primary focus of advancing the development of the Corani and Santa Ana silver deposits. The three projects described in this update range from an advanced Phase III drilling program at the La Yegua copper prospect to...

Reimagining How Earth Emerged Out Of Ice Age
2014-03-19 14:15:38

Lee Rannals for redOrbit.com - Your Universe Online Researchers, publishing a paper in the journal Nature, say rapid erosion in mountain regions could explain why the Earth isn’t essentially still a snowball. Scientists have long believed that rocks pushed up to the surface by plate tectonics absorbed atmospheric carbon dioxide, and volcanic processes are what helps to emit this CO2. However, despite this theory and a variety of other hypotheses being put forward to balance the...

How Mountains And Rivers Make Life Possible
2014-03-14 14:47:09

Stanford University Favorable conditions for life on Earth are enabled in part by the natural shuttling of carbon dioxide from the planet's atmosphere to its rocky interior and back again. Now Stanford scientists have devised a pair of math equations that better describe how topography, rock compositions and the movement of water through a landscape affects this vital recycling process. Scientists have long suspected that the so-called the geologic carbon cycle is responsible for...

Ocean Food Web Plays Key Role In The Global Carbon Cycle
2014-03-12 10:39:50

University of California - Santa Barbara Nothing dies of old age in the ocean. Everything gets eaten and all that remains of anything is waste. But that waste is pure gold to oceanographer David Siegel, director of the Earth Research Institute at UC Santa Barbara. In a study of the ocean's role in the global carbon cycle, Siegel and his colleagues used those nuggets to their advantage. They incorporated the lifecycle of phytoplankton and zooplankton — small, often microscopic animals...

2014-03-06 08:24:42

VANCOUVER, March 6, 2014 /PRNewswire/ - Cayden Resources Inc. (TSX.V:CYD, OTCQX: CDKNF) ("Cayden" or the "Company") is pleased to announce that it has received drilling permits for the Peña de Oro target located within the companies 100% optioned El Barqueño Concessions in Jalisco State, Mexico where drilling will commence immediately. The Peña de Oro target is the most advanced of the 8 targets that Cayden plans to drill in the next 18 months. The Company considers this...

2014-02-26 20:21:07

DENVER, Feb. 26, 2014 /PRNewswire/ -- Vista Gold Corp. ("Vista" or the "Company") (NYSE MKT and TSX: VGZ) announced today that its agreement with the Northern Territory of Australia (the "Agreement") for the Mt. Todd gold project has been extended for an additional three-year period to December 2018. Additionally, the Company provided an update on the EIS permitting process and announced an updated resource estimate for the Quigleys deposit, a satellite deposit to the Mt. Todd gold...

2014-01-30 23:30:28

The Life, Earth & Health Sciences Magazine EurekaMag.com has published 47,389 new articles on geochemical interpretation. As a comprehensive publisher of geographical articles, EurekaMag.com extensively covers scientific interpretation of geochemical data which include measurements using the tools and principles of chemistry and explains the mechanisms behind the earth's and other planets' geological systems including its crust and oceans. Mannheim, Germany (PRWEB) January 30,...

2014-01-30 08:34:40

VANCOUVER, Jan. 30, 2014 /PRNewswire/ - Sarama Resources Ltd. ("Sarama" or the "Company") is pleased to announce that preliminary metallurgical testing at its flagship South Houndé Project in south-west Burkina Faso has returned encouraging results, indicating potential for heap leach processing of oxide mineralisation. Sarama is conducting the testwork to establish a range of alternatives for the development of the South Houndé Project, with the heap leach concept presenting an...

Ocean Acidification Long Term Research
2014-01-28 13:43:59

Brett Smith for redOrbit.com - Your Universe Online More research is necessary for an accurate determination of how marine species will cope long-term with ocean acidification, according to a new research review in the journal Trends in Ecology and Evolution. "We can't measure evolutionary responses in all organisms, so we need to choose carefully to get the most bang for our buck," said review author Jennifer Sunday, a post-doctoral researcher at The University of British Columbia in...

2014-01-27 08:22:14

VANCOUVER, Jan. 27, 2014 /PRNewswire/ - Sarama Resources Ltd. ("Sarama" or the "Company") is pleased to announce that soil geochemistry surveys at its Grand Bassa exploration property in central Liberia have successfully identified several anomalous gold-in-soil trends, the largest of which extends for 14km along strike. The Company's exploration program has also intersected in-situ gold mineralisation in follow-up trenching programs, giving credence to soil geochemistry survey...


Latest Geochemistry Reference Libraries

28_0d277ca2b0d8b8cd79fb9cfa322f77e1
2005-05-26 11:01:52

Diorite is a grey to dark grey intermediate intrusive igneous rock composed principally of plagioclase feldspar (typically andesine), hornblende, and/or pyroxene. Varieties deficient in hornblende and other dark minerals are called leucodiorite. It is often described as "salt and pepper" when composed largely of light-colored minerals randomly interspersed with dark minerals. When olivine and more iron-rich augite are present, the rock grades into ferrodiorite, which is transitional to...

28_30e95d7bc9a84ffe78f930c8704eb5b2
2005-05-26 11:00:22

Gabbro is a dark, coarse-grained, intrusive igneous rock chemically equivalent to basalt. It is a plutonic rock, formed when molten magma is trapped beneath the Earth's surface and cools slowly into a hard, coarsely crystalline mass. It is dense, greenish or dark-colored and contains varied percentages of plagioclase feldspar, pyroxene, amphibole, and olivine (called olivine gabbro when olivine is present in large quantities). Quartz gabbros are also known to occur and are probably derived...

28_c04342a5025a8ae7a0de88f6dc83278c
2005-05-25 11:55:01

Syenite is a coarse-grained intrusive igneous rock of the same general composition as granite but with the quartz either absent or present in relatively small amounts. The feldspars are alkaline in character and the dark mineral is usually hornblende. Soda-lime feldspars may be present in small quantities. The term syenite was originally applied to hornblende granite like that of Syene in Egypt, from which the name is derived. Syenite is not a common rock, some of the more important...

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