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NARROW
GeoRef Subject
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all geography including DSDP/ODP Sites and Legs
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Africa
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Central Africa
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Angola (2)
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Congo Craton (6)
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North Africa
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Algeria
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Ahaggar (1)
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Gour Oumelalen (1)
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Southern Africa
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Botswana (1)
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Gariep Belt (1)
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Kalahari Craton (3)
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Namibia
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Damara Belt (25)
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Kaoko Belt (6)
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Karibib Namibia (1)
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Asia
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Arabian Peninsula
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Middle East
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Atlantic Ocean
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South Atlantic
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Atlantic Ocean Islands
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Europe
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Vercors (1)
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France
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South America
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Brazil
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Dom Feliciano Belt (3)
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United States
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commodities
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mineral exploration (3)
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elements, isotopes
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carbon
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hydrogen
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D/H (1)
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isotope ratios (6)
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isotopes
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stable isotopes
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C-13/C-12 (2)
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D/H (1)
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Hf-177/Hf-176 (1)
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Nd-144/Nd-143 (1)
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O-18/O-16 (4)
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S-34/S-32 (2)
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Sr-87/Sr-86 (1)
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metals
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strontium
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Sr-87/Sr-86 (1)
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hafnium
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platinum group
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platinum ores (1)
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rare earths
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neodymium
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Nd-144/Nd-143 (1)
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tantalum (1)
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tin (1)
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oxygen
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O-18/O-16 (4)
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sulfur
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S-34/S-32 (2)
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geochronology methods
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geologic age
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igneous rocks
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carbonatites (1)
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kimberlite (1)
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granites
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leucogranite (2)
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S-type granites (2)
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pegmatite (1)
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rhyolites (1)
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metamorphic rocks
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marbles (2)
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metasedimentary rocks (8)
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phosphates
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sulfides
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Primary terms
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absolute age (8)
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Africa
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Central Africa
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Angola (2)
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Congo Craton (6)
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North Africa
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Algeria
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Ahaggar (1)
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Gour Oumelalen (1)
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Southern Africa
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Botswana (1)
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Gariep Belt (1)
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Kalahari Craton (3)
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Namibia
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Damara Belt (25)
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Kaoko Belt (6)
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Karibib Namibia (1)
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Asia
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Arabian Peninsula
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Oman (1)
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Middle East
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Turkey (1)
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Atlantic Ocean
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South Atlantic
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Cape Basin (1)
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Rio Grande Rise (2)
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Walvis Ridge (2)
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Atlantic Ocean Islands
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Tristan da Cunha (1)
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carbon
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C-13/C-12 (2)
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Cenozoic
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Tertiary
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Neogene
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Miocene (1)
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continental drift (1)
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crust (6)
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Deep Sea Drilling Project
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IPOD
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Leg 75
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DSDP Site 530 (1)
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Leg 40
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DSDP Site 361 (1)
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deformation (6)
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Europe
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Alps
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Western Alps
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Dauphine Alps
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Vercors (1)
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Western Europe
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France
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Dauphine Alps
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Vercors (1)
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faults (4)
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foliation (1)
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fractures (2)
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igneous rocks
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carbonatites (1)
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kimberlite (1)
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plutonic rocks
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granites
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leucogranite (2)
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S-type granites (2)
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pegmatite (1)
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ultramafics (1)
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volcanic rocks
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basalts
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tholeiite (1)
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rhyolites (1)
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intrusions (5)
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isotopes
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stable isotopes
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C-13/C-12 (2)
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D/H (1)
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Hf-177/Hf-176 (1)
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Nd-144/Nd-143 (1)
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O-18/O-16 (4)
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lineation (1)
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Mesozoic
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metals
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Sr-87/Sr-86 (1)
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hafnium
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Hf-177/Hf-176 (1)
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manganese (1)
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tantalum (1)
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tin (1)
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metamorphic rocks
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Ocean Drilling Program
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Leg 175
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ODP Site 1083 (1)
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orogeny (2)
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oxygen
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O-18/O-16 (4)
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Paleoproterozoic (1)
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sea-floor spreading (2)
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Damara Belt
Uraniferous Leucogranites in the Rössing Area, Namibia: New Insights from Geologic Mapping and Airborne Hyperspectral Imagery
On the kinematics and timing of Rodinia breakup: a possible rift–transform junction of Cryogenian age at the southwest cape of Congo Craton (northwest Namibia)
Hotspot origin for asymmetrical conjugate volcanic margins of the austral South Atlantic Ocean as imaged on deeply penetrating seismic reflection lines
Control of Precambrian-to-Paleozoic orogenic trends by along-strike variations in Early Cretaceous continental rifts of the South Atlantic Ocean
The geochemical evolution of Nb–Ta–Sn oxides from pegmatites of the Cape Cross–Uis pegmatite belt, Namibia
Provenance of the Neoproterozoic deep-water Zerrissene Group of the Damara Orogen, Namibia, and paleogeographic implications for the closing of the Adamastor Ocean and assembly of the Gondwana supercontinent
Crustal recycling in the Damara Belt, Namibia, and interaction of the Congo and Kalahari Cratons – evidence from zircon U-Pb, Hf and O isotopes
Quartz vein formation by local dehydration embrittlement along the deep, tremorgenic subduction thrust interface
The Donkerhuk batholith, Namibia: A giant S-type granite emplaced in the mid crust, in a fore-arc setting
How to make a transverse triple junction—New evidence for the assemblage of Gondwana along the Kaoko-Damara belts, Namibia
Early extensional detachments in a contractional orogen: coherent, map-scale, submarine slides (mass transport complexes) on the outer slope of an Ediacaran collisional foredeep, eastern Kaoko belt, Namibia
PLATINUM-GROUP MINERALS IN THE NEOPROTEROZOIC STRATABOUND COPPER-SILVER MINERALISATION, THE KALAHARI COPPERBELT, NORTHWESTERN BOTSWANA
Implications of high-precision Re-Os molybdenite dating of the Navachab orogenic gold deposit, Namibia
Fingerprints of late Neoproterozoic ridge subduction in the Pan-African Damara belt, Namibia
An audio-magnetotelluric investigation of the Otjiwarongo and Katima Mulilo regions, Namibia
F – Goldschmidt Abstracts 2012
DEFORMATION AND AGE OF THE STINKBANK PLUTON AND IMPLICATIONS FOR THE CORRELATION OF TECTONOMETAMORPHIC EPISODES IN THE PAN-AFRICAN DAMARA BELT
Post-Paleozoic magmatism in Angola and Namibia (SW Africa) is widespread along the continental margin (flood tholeiites of the Paraná-Etendeka system), and along transverse lineaments (alkaline and alkaline-carbonatitic complexes; sodic and potassic suites). These different magmatic suites are strictly associated in space and/or time. Variable melting degrees of a veined lithospheric mantle are proposed for the most “primitive” magmas from geochemical modeling and Sr-Nd isotope systematics. A complex evolution emerges for some ultramafic rocks (cumulus processes) and for differentiated rock compositions (assimilation and fractional crystallization, AFC, magma mixing), which may also involve anatexis of the crystalline basement and emplacement of S-type granites and rhyolites. Melting of a lithospheric mantle, without an appreciable contribution of the asthenosphere (thermal input excepted), is consistent with regional thermal anomalies in the deep mantle, mapped by gravity of the geoid, seismic tomography, and paleomagnetic analysis. The Walvis Ridge and Rio Grande “hotspot tracks” are interpreted as stress response in the lithosphere during rifting. A plume-related heat source is not favored by our results.