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GEOREF RECORD
Foci of mantle disturbance in southern Africa and their economic significance
R. N. Crockett and R. Mason
Foci of mantle disturbance in southern Africa and their economic significance
Economic Geology and the Bulletin of the Society of Economic Geologists (August 1968) 63 (5): 532-540
Foci of mantle disturbance in southern Africa and their economic significance
Economic Geology and the Bulletin of the Society of Economic Geologists (August 1968) 63 (5): 532-540
Index Terms/Descriptors
Latitude & Longitude
Abstract
Zones of crustal weakness, representing foci of the mantle, have persisted for at least 2500 m.y., as shown by orogens and abundance of mafic igneous rocks. Karroo lavas are especially indicative of such zones. Diamonds in kimberlite and nickel associated with mafic and ultramafic rocks suggest a mantle source. The distribution of known diamond and nickel deposits is closely related to the zones of crustal weakness, and particularly to areas where two or more zones intersect. Such areas are exploration targets.
ISSN: 0361-0128
EISSN: 1554-0774
Coden: ECGLAL
Serial Title: Economic Geology and the Bulletin of the Society of Economic Geologists
Serial Volume: 63
Serial Issue: 5
Title: Foci of mantle disturbance in southern Africa and their economic significance
Pages: 532-540
Published: 196808
Text Language: English
Publisher: Economic Geology Publishing Company,
Lancaster, PA,
United States
Accession Number: 1968-017113
Categories: Economic geology of ore depositsSolid-earth geophysics
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: sketch maps
S35°00'00" - N37°00'00", W18°00'00" - E51°00'00"
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data from Bibliography and Index of Geology Exclusive of North America, Geological Society of America, Boulder, CO, United States
Update Code: 1968
