Latest Geochemistry Stories
Partners with Experienced West African Contractor AUMS TORONTO, Sept. 29, 2014 /PRNewswire/ - Roxgold Inc.
Scientists analyze marine sediment core to understand trends in carbon isotopes over time.
The increasing acidification of ocean waters caused by rising atmospheric carbon dioxide levels could rob sharks of their ability to sense the smell of food, a new study suggests.
TSX.V Trading Symbol: DEC STEWART, BC, Sept. 11, 2014 /PRNewswire/ - Decade Resources Ltd.
Urban waters record the salt in our food, cement in our sidewalks, University of Maryland scientist says.
Propelled by the largest single-year increase in carbon dioxide in three decades, the amount of greenhouse gases in the atmosphere reached record highs in 2013, the World Meteorological Organization (WMO) reported on Tuesday.
VANCOUVER, Sept. 8, 2014 /PRNewswire/ - Sarama Resources Ltd.
TSXV: GGIOTC: GGIFF Frankfurt: RQM VANCOUVER, Aug. 22, 2014 /PRNewswire/ - Garibaldi Resources Corp.
Furthers Permitting Goals and Advances Development TORONTO, Aug. 19, 2014 /PRNewswire/ - Roxgold Inc.
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...
- Growing in low tufty patches.