Characterizing and Tracing the Dust Sources of Lakes Sihailongwan and Huguang Maar in NE and SE China Over the Past 80 ka
Desert dust is an important component of the global environmental-climate system; it travels long distances in the atmosphere and settles on Earths surface. Arid continental regions (e.g., Sahara-Arabia desert belt, Gobi desert), referred to as accumulation basins, are the source of desert dust comprised of fine mineral particles. This dust can be lifted and blown by strong winds and circulate the atmosphere before settling in destination basins. The isotopic signature (e.g.,87Sr/86Sr,εNd) of the dust source rocks is preserved in the particle and hence can be used to trace the source of the dust (accumulation basin). Because the dust is windblown and circulates the atmosphere, tracing the source provides means to studying past climate and hydrological conditions in the source basin and the paleo-synoptic conditions of dust transport (e.g., Grousset and Biscaye 2005). Deep-sea and lacustrine sediments serve as important archives for dust.
maar lakes dust paleo-synoptics Nd-Sr radiogenic isotopes
Shikma Zaarur Mordechai Stein Yigal Erel
Institute of Earth Sciences, The Hebrew University of Jerusalem, Jerusalem, Israel Institute of Earth Sciences, The Hebrew University of Jerusalem, Jerusalem, Israel;Geological Survey
国际会议
The 6th International Maar Conference(IMC)(第六届国际玛珥会议)
长春
英文
113-114
2016-07-30（万方平台首次上网日期，不代表论文的发表时间）