PDF/Textbook The Megacryst Suite From The Schuller Kimberlite South Africa Full Download

The Megacryst Suite from the Schuller Kimberlite, South Africa

Author: D. De Bruin
Publisher:
ISBN:
Category : Crystals
Languages : en
Pages : 128

Book Description

A Tale of Two Cratons

Author: A. G. Jones
Publisher: Gulf Professional Publishing
ISBN: 9780444516145
Category : Science
Languages : en
Pages : 522

Book Description
Given the established nature of geoscientific knowledge of the Kaapvaal craton compared to the Slave craton, and given the exciting new interdisciplinary results coming from the Kaapvaal Project and from Slave craton studies, scientists working on both cratons were brought together in a workshop to compare and contrast the nature of these two cratons. Of the 54 papers presented at the workshop, 24 are included in this volume. There are clearly major similarities and differences between these two Archean cratons. The crust of both was predominantly formed in the Mesoarchean. Both contain crustal sections consisting of terranes of different ages welded together by Archean accretionary events. Both crustal sections are underlain by lithospheric mantle sections consisting of peridotites that experienced extensive partial melt extraction between 2.9 Ga and 3.2 Ga, but this is where the similarities between the cratons end. One of the most striking differences between the Slave and Kaapvaal cartons is the apparent seismic homogeneity of the Kaapvaal craton's SCLM whereas the Slave craton is seismically layered. The seismic layering in the centre of the craton correlates laterally and with depth with electrical layering and geochemical layering. Taken together, these differences suggest that SCLM formation was different for the two cratons, implying that the search for a single causative formation process is bound to fail. Reprinted from the journal Lithos Volume 71, numbers 2-4.

The Megacryst Suite from the Schuller Kimberlite, South Africa

A Tale of Two Cratons

South African Journal of Geology

Annual Technical Report of the Geological Survey of South Africa

Annual Technical Report of the Geological Survey of South Africa

Bulletin

South African National Bibliography

Report of the Department of Mineral and Energy Affairs

Information Circular

Bibliography and Subject Index of South African Geology