Kaiser, Knut; Schoch, Werner H; Miehe, Georg (2007): Granulometry, calcium carbonate content and radiocarbon ages of soil profiles obtained in Quinghai Province, northeast Tibet [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.787132, Supplement to: Kaiser, K et al. (2007): Holocene paleosols and colluvial sediments in Northeast Tibet (Qinghai Province, China): Properties, dating and paleoenvironmental implications. CATENA, 69(2), 91-102, https://doi.org/10.1016/j.catena.2006.04.028
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Abstract:
Colluvial deposits consisting of silts and loams were detected in several climatologically different areas of NE Tibet (3200-3700 m a.s.l.). Layering, distinct organic content and low content of coarse matter as well as location in the relief revealed an origin from low-energy slope erosion (hillwash). Underlying and intercalated paleosols were classified as Chernozems, Phaeozems, Regosols and Fluvisols. Fifteen radiocarbon datings predominant on charcoal from both colluvial layers and paleosols yielded ages between 8988 ± 66 and 3512 ± 56 uncal BP. Natural or anthropogenic factors could have been the triggers of the erosional processes derived. It remains unclear which reason was mainly responsible, due to controversial paleoclimatic and geomorphic records as well as insufficient archaeological knowledge from this region. Determinations of charcoal and fossil wood revealed the Holocene occurrence of tree species (spruce, juniper) for areas which nowadays have no trees or only few forest islands. Thus large areas of NE Tibet which are at present steppes and alpine pastures were forested in the past.
Coverage:
Median Latitude: 36.721578 * Median Longitude: 100.111385 * South-bound Latitude: 35.499920 * West-bound Longitude: 98.037330 * North-bound Latitude: 37.749110 * East-bound Longitude: 101.432000
Date/Time Start: 2004-01-01T00:00:00 * Date/Time End: 2004-01-01T00:00:00
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
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2 datasets
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Datasets listed in this publication series
- Kaiser, K; Schoch, WH; Miehe, G (2007): (Table 2) AMS radiocarbon datings of soil profiles obtained in Qinghai Province. https://doi.org/10.1594/PANGAEA.787129
- Kaiser, K; Schoch, WH; Miehe, G (2007): (Table 1) Granulometry, soil pH, carbonate content and color description of soil profiles obtained in Qinghai Province. https://doi.org/10.1594/PANGAEA.787131