thumbnail

Ophiolites and oceanic crust

Nature

By:
,
DOI: 10.1038/250136a0

Links

Abstract

OPHIOLITES consist of a pseudostratiform sequence, of harzburgite, tectonite, ultramafic and mafic cumulates sometimes including gabbro and quartz diorite (plagiogranite) intrusions, dolerite dyke swarms, pillow lava 1, and deep-sea sediments2-4. This assemblage occurs in all Phanerozoic mountain systems and is interpreted as fossil oceanic crust and uppermost mantle5-10. Outstanding problems include differences between the chemical properties of Ophiolites and rocks thought to represent present-day oceanic crust11,12, the lack in some complexes of recognised dyke swarms or cumulates, and the relative thinness of ophiolite mafic rocks compared with standard oceanic crustal sections5,8,13. ?? 1974 Nature Publishing Group.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Ophiolites and oceanic crust
Series title:
Nature
DOI:
10.1038/250136a0
Volume
250
Issue:
5462
Year Published:
1974
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
First page:
136
Last page:
139