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More Indepth notes on Metals
Source: Bibliography
Geological Rocks & Minerals
Designed by Nigel G Wilcox
Ref: B3
Non-Commercial Research Identification
Basalt
Name: Macro Image of Ankaramite Basalt
Location: Hawaii
Date: 2006
Composition:
Name: Macro Image of Nepheline Basalt
Location: Hawaii
Date: 2006
Composition:
Name: Macro Image of Picritic Basalt
Location: Hawaii
Date: 2006
Composition:
Name: Ankaramite Basalt
Location: Hawaii
Date: 2006
Composition:
Name: Nepheline Basalt
Location: Hawaii
Date: 2006
Composition:
Name: Picritic Basalt
Location: Kunia, Oahu, Hawaii
Date: 2006
Composition:
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Caption: This sample of picritic basalt was made at a high temperature of 1200°C (2200°F) about 2 miles underground in the magma chamber of the Ko'olau volcano. The high temperature allowed the large olivine crystals to form. The crystals grew very slowly for years while underground. The blade-like black and white plagioclase crystals formed during and shortly after the eruption of the magma. The rock dates to 2.5 million years ago.
Caption: This sample of picritic basalt was made at a high temperature of 1200°C (2200°F) about 2 miles underground in the magma chamber of the Ko'olau volcano. The high temperature allowed the large olivine crystals to form. The crystals grew very slowly for years while underground. The blade-like black and white plagioclase crystals formed during and shortly after the eruption of the magma. The rock dates to 2.5 million years ago.
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