Sedimentology, magnetics and chemistry on palaeolake core D100 from the Gobi Desert
Cobertura |
LATITUDE: 42.100000 * LONGITUDE: 100.850000 |
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Data(s) |
14/08/2006
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Resumo |
The Gaxun Nur Basin in arid China is tectonically influenced by the left-lateral displacements along the Gobi-Altay and Qilian Shan shear zones, resulting in a large pull-apart basin with strong subsidence in the interior. The up to 300 m thick basin fills consist of fluvio-lacustrine fine-grained deposits mainly transported by river discharges from the Tibetan Plateau. They led to a large depositional area of more than 28,000 qkm in size with presently dry terminal lakes at the outer edges. This vast area serves as a main source for loess transport to south-eastern regions of China (Loess Plateau) caused by the variable winter monsoon. Based on geochemical and sedimentological analyses of the sediment core D100 retrieved from a deep drilling in the centre of the Gaxun Nur Basin following questions have to be answered: 1. Reconstruction of the water balance and determination of hydrological cycles during interglacial and glacial periods. 2. Reconstructing variations in lacustrine environment and aeolian activities with respect to transitional phases fro, warm to cold stages (MIS 4 to 5 and older stages). 3. Establishing a sustainable chronology for the last 250 ka. |
Formato |
application/zip, 3 datasets |
Identificador |
https://doi.pangaea.de/10.1594/PANGAEA.509841 doi:10.1594/PANGAEA.509841 |
Idioma(s) |
en |
Publicador |
PANGAEA |
Direitos |
CC-BY: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted |
Fonte |
Supplement to: Wünnemann, Bernd; Hartmann, Kai; Altmann, Norbert; Hambach, Ulrich; Pachur, Hans-Joachim (2006): Interglacial and glacial fingerprints from the Gobi Desert, NW China. In: Sirocko, F, Claussen, M, Litt, T & Sanchez-Goñi, M F(eds.): The climate of past interglacials; Developments in Quaternary Science, Elsevier, Amsterdam |
Palavras-Chave | #<20 µm; 125-20 µm; 2000-200 µm; 200-63 µm fS; 63-20 µm gU; Age; AGE; Ca; Ca-7; Calcium; Carbon, organic, total; D100; Decl (NRM); Depth; DEPTH, sediment/rock; DRILL; Drilling/drill rig; Gaxun Nur, Inner Mongolia, China; Grain size, mean radius; Incl (NRM); Inten (NRM); Magnesium; Mg; Mg-7; NRM, Declination; NRM, Inclination; NRM, Intensity; Radius; S; S-7; Size fraction < 0.020 mm; Size fraction 0.063-0.020 mm, coarse silt; Size fraction 0.125-0.020 mm; Size fraction 0.200-0.063 mm, fine sand; Size fraction 2.000-0.200 mm; Sulfur, total; TOC; TOC-7 |
Tipo |
Dataset |