Latest Geochemistry Stories
Some 56 million years ago, a massive pulse of carbon dioxide into the atmosphere sent global temperatures soaring. In the oceans, carbonate sediments dissolved, some organisms went extinct and others evolved.
VANCOUVER, May 29, 2014 /CNW/ - NexGen Energy Ltd.
TORONTO, May 26, 2014 /PRNewswire/ - Roxgold Inc. ("Roxgold" or "the Company") (TSXV: ROG) today reported its financial results for the three months ended March 31, 2014.
TORONTO, May 26, 2014 /CNW/ - Galway Metals Inc.
TORONTO, May 9, 2014 /CNW/ - Wallbridge Mining Company Limited (TSX: WM, FWB: WC7) ("Wallbridge") held its Annual General and Special Meeting of shareholders (the "Meeting")
NYSE - AGTSX - FR Frankfurt - FMV VANCOUVER, May 1, 2014 /PRNewswire/ - FIRST MAJESTIC SILVER CORP. (AG: NYSE; FR: TSX) (the "Company" or "First Majestic")
A NOAA-led research team has found the first evidence that acidity of continental shelf waters off the West Coast is dissolving the shells of tiny free-swimming marine snails, called pteropods, which provide food for pink salmon, mackerel and herring
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
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...
- A person who stands up for something, as contrasted to a bystander who remains inactive.
- One of the upright handlebars on a traditional Inuit sled.