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Mafic and Ultramafic Nodules - Introduction

Wyllie, P. J. (1967) Mafic and Ultramafic Nodules - Introduction. In: Ultramafic and related rocks. Wiley , New York, NY, pp. 327-328.

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The great interest in the small nodules found in alkalic lavas and kimberlite diatremes lies in the hope that they will provide information about the composition and mineralogy of the earth's mantle. They have already been discussed by several contributors, including O'Hara, Chapter 5-IV; Dawson, 8-II and 8-V; Davidson, 8-III; Watson, 8-IV; Upton, 9-II; and von Eckermann, 9-IV. The nodules have been interpreted as representative of primary mantle material; as residual mantle material after extraction of basalt; as xenoliths picked up within the earth's crust; as cumulates from primary basaltic magma formed as bottom cumulates in temporary reservoirs, or formed marginally during upward flow.

Item Type:Book Section
Additional Information:© 1967 John Wiley & Sons, Inc.
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ID Code:63871
Deposited By: Tony Diaz
Deposited On:22 Jan 2016 17:04
Last Modified:03 Oct 2019 09:32

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