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GSA Special Papers
Review of African Granulites and Related Rocks
Author(s)
Geological Society of America

Volume
156
Copyright:
© 1974 Geological Society of America
Geological Society of America
ISBN print:
9780813721569
Publication date:
January 01, 1974
Book Chapter
Review of African Granulites and Related Rocks
Author(s)
-
Published:January 01, 1974
Although granulite facies rocks are present in zones of orogenesis ranging in age from 300 to 3,000 m.y. in Africa, only two distinct ages of granulite facies metamorphism, at about 1,200 and 3,000 m.y., have thus far been recognized. Granulite facies suites in regions of orogenesis of other ages — 1,850 ± 250 m.y., 600 ± 100 m.y., and Phanerozoic — represent older remnants since affected by regional retrograde metamorphism. The retrogression is particularly widespread in the 600 ± 100 m.y. orogenic zone, an important part of which is interpreted in terms of a former zone of granulite facies rocks,...
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Index Terms/Descriptors
- absolute age
- actinides
- Africa
- alkali metals
- alkaline earth metals
- Benin
- Cameroon
- Central Africa
- Central African Republic
- charnockite
- Congo Democratic Republic
- dates
- distribution
- East Africa
- Ethiopia
- facies
- Gabon
- geochemistry
- geochronology
- Ghana
- granites
- granulite facies
- granulites
- Hercynian
- igneous rocks
- intrusive
- Ivory Coast
- Kenya
- lead
- Malawi
- Mesozoic
- metals
- metamorphic rocks
- Mozambique
- Namibia
- Nigeria
- orogeny
- Paleozoic
- petrology
- plutonic rocks
- Precambrian
- ratios
- Rb/Sr
- regional
- relation
- rubidium
- Sahara
- Sierra Leone
- South Africa
- Southern Africa
- strontium
- structural
- Sudan
- Tanzania
- Togo
- U/Pb
- Uganda
- uranium
- West Africa
- Zaire
- Zimbabwe
- Kibaran
- charnockitic
- Damaran
- Eburnian
- Huabian
- Katangas
Latitude & Longitude
-
S22°30'00" - S15°30'00", E25°15'00" - E33°00'00" -
S02°00'00" - N04°00'00", E29°00'00" - E35°00'00" -
N06°10'00" - N11°10'00", W00°10'00" - E01°49'60" -
S11°40'00" - S01°00'00", E29°30'00" - E40°30'00" -
N08°34'60" - N22°00'00", E22°00'00" - E38°30'00" -
S35°00'00" - S22°00'00", E16°00'00" - E33°00'00" -
N07°00'00" - N10°00'00", W13°30'00" - W11°00'00" -
S04°00'00" - N02°30'00", E08°30'00" - E14°30'00" -
N03°25'00" - N18°00'00", E33°00'00" - E48°00'00" -
S13°00'00" - N05°15'00", E12°00'00" - E32°00'00" -
N03°00'00" - N12°00'00", E14°00'00" - E27°30'00" -
N02°00'00" - N13°00'00", E08°00'00" - E17°00'00" -
N06°10'00" - N12°30'00", E00°40'00" - E03°49'60" -
N14°00'00" - N35°00'00", E17°19'60" - E38°00'00" -
N04°00'00" - N14°00'00", E02°30'00" - E14°30'00" -
S29°00'00" - S16°40'00", E11°30'00" - E25°15'00" -
S27°00'00" - S10°00'00", E30°00'00" - E41°00'00" -
S17°30'00" - S09°00'00", E33°00'00" - E36°30'00" -
S04°30'00" - N04°30'00", E34°00'00" - E42°00'00" -
N04°19'60" - N10°40'00", W08°45'00" - W02°30'00" -
N04°30'00" - N12°00'00", W03°00'00" - E01°30'00"
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