Gabbro sills intruded into peridotite
The gray rocks are a series of gabbroic sills interlayered with cumulate gabbros and peridotites. These sills occur along the boundary between underlying peridotites and overlying gabbros in the the Bay of Islands ophiolite. This is, then, an exposure of a fossil "Moho" separating Cambrian...
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| Format: | Other/Unknown Material |
| Language: | unknown |
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Oberlin College Library
1987
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| Online Access: | http://server15963.contentdm.oclc.org/u?/p15963coll1,1632 |
| Summary: | The gray rocks are a series of gabbroic sills interlayered with cumulate gabbros and peridotites. These sills occur along the boundary between underlying peridotites and overlying gabbros in the the Bay of Islands ophiolite. This is, then, an exposure of a fossil "Moho" separating Cambrian oceanic crust from the underlying mantle. |
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