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The ultramafic belts

Wyllie, Peter J. (1969) The ultramafic belts. In: The Earth's crust and upper mantle: structure, dynamic processes, and their relation to deep-seated geological phenomena. Geophysical Monograph. No.13. American Geophysical Union , Washington, DC, pp. 480-483.

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One petrological approach to upper mantle studies is to determine which ultramafic rocks represent mantle material. Ultramafic rocks occur in a variety of field and petrographic associations: in recent reviews, Wyllie [1967b, 1968] outlined eleven petrographic associations, some with subdivisions. In this summary, it is convenient to consider these in four larger groups: (1) layered, stratiform, and other intrusions involving gabbro or diabase, together with accumulations or concentrations of mafic minerals; (2) the alkalic rocks, including kimberlites, mica peridotites, members of ring complexes, and ultrabasic Java flows; (3) the several serpentinite-peridotite associations often classified together as alpine-type intrusions; (4) serpentinites and peridotites of the oceanic regions.

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Additional Information:© 1969 American Geophysical Union. This review developed from research supported by National Science Foundation under Grant GA-1289.
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Series Name:Geophysical Monograph
Issue or Number:13
Record Number:CaltechAUTHORS:20160209-095010261
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Official Citation:Wyllie, P. J. (1969) The Ultramafic Belts, in The Earth's Crust and Upper Mantle (ed P. J. Hart), American Geophysical Union, Washington, D. C.. doi: 10.1029/GM013p0480
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:64328
Deposited By: Tony Diaz
Deposited On:09 Feb 2016 19:53
Last Modified:10 Nov 2021 23:29

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