Metapyroxenite_from_the_Ophiolite_on_Unst_in_Shetland_Islands_in_Scotland.jpg
Size of this preview:
800 × 505 pixels
.
Other resolutions:
320 × 202 pixels
|
640 × 404 pixels
|
980 × 619 pixels
.
Summary
Description Metapyroxenite from the Ophiolite on Unst in Shetland Islands in Scotland.jpg |
English:
Metapyroxenite (8.0 cm across) composed of chromian diopside pyroxene ((Ca,Cr)MgSi2O6 - calcium chromium magnesium silicate). Because this pyroxenite (a clinopyroxenite, really) is all diopside, a better rock name is diopsidite.
This is from an ophiolite complex (Shetland Ophiolite Complex; a.k.a. Unst Ophiolite Complex) exposed on the island of Unst in the northeastern Shetland Islands (in the North Sea, between Scotland & Norway). The rocks in the area represent ~basal crustal rocks metamorphosed during the Caledonian Orogeny (~425-500 million years ago). Published research indicates that the original rocks were from a late Neoproterozoic-Cambrian intracontinental, ocean-floored rift basin. This metapyroxenite is from the upper pyroxenite layer of the Unst Ophiolite Complex. Locality: outcrop at Skeo Taing, shores of Balta Sound, eastern margin of island of Unst, northeastern Shetland Islands, Scotland. |
Date | |
Source | https://www.flickr.com/photos/jsjgeology/14821969772/in/album-72157646104447616/ |
Author | James St. John (jsj1771) ( https://www.flickr.com/people/jsjgeology/ ) |
Licensing
This image was originally posted to Flickr by James St. John at https://flickr.com/photos/47445767@N05/14821969772 ( archive ). It was reviewed on 11 November 2018 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
11 November 2018
This file is licensed under the
Creative Commons
Attribution 2.0 Generic
license.
-
You are free:
- to share – to copy, distribute and transmit the work
- to remix – to adapt the work
-
Under the following conditions:
- attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.