J
Jan Kramers
Researcher at University of Johannesburg
Publications - 181
Citations - 22087
Jan Kramers is an academic researcher from University of Johannesburg. The author has contributed to research in topics: Metamorphism & Craton. The author has an hindex of 56, co-authored 175 publications receiving 20428 citations. Previous affiliations of Jan Kramers include University of Liverpool & Leipzig University.
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Hydrogen sulphide release to surface waters at the Precambrian/Cambrian boundary
TL;DR: It is suggested that the Early Cambrian animal radiation may have been triggered by a major change in ocean circulation, terminating a long period during which the Proterozoic ocean was stratified, with sulphidic deep water.
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Lead, uranium, strontium, potassium and rubidium in inclusion-bearing diamonds and mantle-derived xenoliths from Southern Africa
TL;DR: In this article, measurements of K, Rb, Sr, U, Th and Pb levels and isotopic compositions in sulphide inclusions in diamonds are reported, indicating that the diamonds containing these inclusions are xenocrysts in the host kimberlite.
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Unraveling the record of successive high grade events in the Central Zone of the Limpopo Belt using Pb single phase dating of metamorphic minerals
TL;DR: Using Pb stepwise leaching of metamorphic silicates, the Central Zone (CZ) of the Limpopo Belt has been studied in this paper, where three distinct high grade events at about 3.2−3.1 Ga, 2.65−2.52 Ga and 2.0−0.05 Ga are recognized.
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Climate on the Southern Black Sea coast during the Holocene: implications from the Sofular Cave record
O. M. Göktürk,O. M. Göktürk,Dominik Fleitmann,Dominik Fleitmann,S. Badertscher,S. Badertscher,Hai Cheng,Hai Cheng,Richard Lawrence Edwards,Markus Leuenberger,Markus Leuenberger,A. Fankhauser,Okan Tüysüz,Jan Kramers +13 more
TL;DR: In this paper, the authors presented the updated Holocene section of the Sofular Cave record from the southern Black Sea coast (northern Turkey), an area with considerably different present-day climate compared to that of the neighboring Eastern Mediterranean region.
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Trace element and isotope studies on veined, metasomatic and “MARID” xenoliths from Bultfontein, South Africa.
TL;DR: In this article, the authors investigated the nature of the metasomatic processes and the character of the kimberlitic fluid or liquid and that generating the MARID samples.