Latest Geochemistry Stories
Geobotany or phytogeography is the branch of biogeography that covers the geographic distribution of plant species and their influence on the earth's surface.
Stock Symbol: WGF: TSX-V SASKATOON, April 29, 2014 /CNW/ - Wescan Goldfields Inc.
TORONTO, April 28, 2014 /CNW/ - Alacer Gold Corp. ("Alacer" or the "Corporation") [TSX: ASR and ASX: AQG] announced today that it has filed its first quarter
TORONTO, April 24, 2014 /PRNewswire/ - Roxgold Inc.
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.
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.
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.
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.
VANCOUVER, March 6, 2014 /PRNewswire/ - Cayden Resources Inc.
DENVER, Feb. 26, 2014 /PRNewswire/ -- Vista Gold Corp.
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...
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...
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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