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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Approximation of terrestrial lead isotope evolution by a two-stage model
J.S. Stacey,Jan Kramers +1 more
TL;DR: In this paper, a two-stage model for terrestrial lead isotope evolution is proposed, which permits the age of the earth to be that of the meteorite system and also yields good model ages for samples of all ages.
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Holocene forcing of the Indian monsoon recorded in a stalagmite from southern Oman.
Dominik Fleitmann,Stephen J. Burns,Manfred Mudelsee,U. Neff,Jan Kramers,Augusto Mangini,Albert Matter +6 more
TL;DR: A high-resolution oxygen-isotope record from a thorium-uranium–dated stalagmite from southern Oman reflects variations in the amount of monsoon precipitation, indicating that early Holocene monsoon intensity is largely controlled by glacial boundary conditions.
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Holocene ITCZ and Indian monsoon dynamics recorded in stalagmites from Oman and Yemen (Socotra)
Dominik Fleitmann,Stephen J. Burns,Augusto Mangini,Manfred Mudelsee,Jan Kramers,Igor M. Villa,U. Neff,Abdulkarim A. Al-Subbary,Annett Buettner,Dorothea Hippler,Albert Matter +10 more
TL;DR: In this article, high-resolution oxygen isotope (δ18O) profiles of Holocene stalagmites from four caves in Northern and Southern Oman and Yemen (Socotra) provide detailed information on fluctuations in precipitation along a latitudinal transect from 12°N to 23°N.
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History of Atmospheric Lead Deposition Since 12,370 14C yr BP from a Peat Bog, Jura Mountains, Switzerland
William Shotyk,Dominik J. Weiss,Peter G. Appleby,A. Cheburkin,Robert Frei,M. Gloor,Jan Kramers,S. Reese,W.O. van der Knaap +8 more
TL;DR: A continuous record of atmospheric lead since 12,370 carbon-14 years before the present (14C yr BP) is preserved in a Swiss peat bog, indicating the beginning of lead pollution from mining and smelting, and anthropogenic sources have dominated lead emissions ever since.
History of Atmospheric Lead Deposition Since 12,370 14 Cy r BP from a Peat Bog, Jura Mountains, Switzerland
William Shotyk,Dominik J. Weiss,Peter G. Appleby,A. Cheburkin,Robert Frei,M. Gloor,Jan Kramers,S. Reese,W.O. van der Knaap +8 more
TL;DR: The greatest lead sux (15.7 milligrams persquare meter per year in A.D. 1979) was 1570 times the natural, backgroundvalue (0.01 milligram per square meters per year from 8030 to 5320.