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Summary
| Description |
English: Bedrock sample from a UGSG drill core at Western Cape Cod, Massachusetts.
An olivine-plagioclase phyric basalt, sample 36MW1041 contains plagioclase (60%), clinopyroxene (25%), chlorite (8%), and oxides (7%). Tabular plagioclase phenocrysts reach 2.5 mm. All olivine has been replaced by chlorite. The matrix, composed of plagioclase, clinopyroxene, chloritized olivine, and oxides exhibits a felty texture. Olivine also occurred as phenocrysts up to 0.6 mm long. Oxides show anhedral growth rims, suggesting a second growth episode, possibly during alteration of other minerals. |
| Source | http://pubs.usgs.gov/of/2003/of03-221/htmldocs/bedrock_photos/36mw1041.htm |
| Author | B.W. Hallett, V. F. Paskevich, L.J. Poppe, S.G. Brand, and D.S. Blackwood |
Licensing
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This image is in the public domain in the United States because it only contains materials that originally came from the United States Geological Survey, an agency of the United States Department of the Interior. For more information, see the official USGS copyright policy.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 09:25, 27 May 2010 | | 2,232 × 1,886 (653 KB) | Woudloper | {{Information |Description={{en|1=Bedrock sample from a UGSG drill core at Western Cape Cod, Massachusetts. An olivine-plagioclase phyric basalt, sample 36MW1041 contains plagioclase (60%), clinopyroxene (25%), chlorite (8%), and oxides (7%). Tabular pla |
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