Gabbro is a dark, coarse-grained, intrusive igneous rock chemically equivalent to basalt. It is a Intrusion (geology) 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 from magma that was oversaturated with silica. On the other hand, essexites represent gabbros whose parent magma had an insufficiency of silica, resulting in the formation of nephelite. Gabbro is too fragile to use in construction, but often contains valuable amounts of chromium, nickel, cobalt, gold, silver, platinum, and copper sulfides. Gabbro was named by the German geologist Christian Leopold von Buch after a town in the Italy Tuscany region. == See also == * List of minerals Igneous rocks
I know it says "first draft," but this looks remarkably like the text at "http://www.geology.wisc.edu/~jill/gabbro.html" (I was looking for the chemical formula for gabbro). Epopt, are you ~jill? --User:Vicki Rosenzweig :I am not ~jill; the page no longer resembles hers at all. --user:the Epopt this page needs more information on CERTAIN types of rocks like the classification and all that
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Words begining with Gabbro:
Gabbro
Gabbro
Gabbros
Gabbro
Gabbro is a dark, coarse-grained, intrusive igneous rock chemically equivalent to basalt. It is a Intrusion (geology) 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 from magma that was oversaturated with silica. On the other hand, essexites represent gabbros whose parent magma had an insufficiency of silica, resulting in the formation of nephelite. Gabbro is too fragile to use in construction, but often contains valuable amounts of chromium, nickel, cobalt, gold, silver, platinum, and copper sulfides. Gabbro was named by the German geologist Christian Leopold von Buch after a town in the Italy Tuscany region. == See also == * List of minerals Igneous rocks
Gabbro
I know it says "first draft," but this looks remarkably like the text at "http://www.geology.wisc.edu/~jill/gabbro.html" (I was looking for the chemical formula for gabbro). Epopt, are you ~jill? --User:Vicki Rosenzweig :I am not ~jill; the page no longer resembles hers at all. --user:the Epopt this page needs more information on CERTAIN types of rocks like the classification and all that
See other meanings of words starting from letter:
G
GA | GB | GC | GD | GE | GF | GH | GI | GJ | GK | GL | GM | GN | GO | GP | GR | GS | GT | GU | GW | GX | GY | GZ |Words begining with Gabbro:
Gabbro
Gabbro
Gabbros
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