1. Desiccation cracks in Zhoushan Archipelago, East China Sea, developed during Heinrich event 3
- Author
-
Jia, Nan, Wang, Yuhong, and Sun, Liguang
- Subjects
- *
ROCK deformation , *ARCHIPELAGOES , *PALEOCLIMATOLOGY , *RADIOCARBON dating , *PALYNOLOGY , *ANALYTICAL geochemistry , *CLIMATE change - Abstract
Abstract: Large desiccation cracks were discovered in the intertidal zone of Zhoushan archipelago, East China Sea. Radiocarbon dating showed that desiccation cracks were formed around 31.2–30.4calka BP. Palynological, mineralogical, and elemental geochemical analyses indicated that the cracks were formed as the result of an abrupt climate shift event. The climate changed from warm and humid, to cold and arid, and back to warm and humid again. This climate event is quite likely linked to Heinrich event 3 via the East Asian Monsoon. Desiccation cracks may provide a new proxy material for studying paleoclimate and paleoenvironment in the Quaternary. [Copyright &y& Elsevier]
- Published
- 2012
- Full Text
- View/download PDF