Abstract A great deal of soft-sediment deformation structures with seismite characteristic were found in the lacustrine strata of the Pleistocene in the southwestern margin of Qaidam Basin.Soft-sediment deformation markers mainly include liquefied sandstone(mudstone)vein，liquefied breccia，load structure，ball-pillow structure，liquefied convolute deformation structure etc.，and the syn-seismic structure deformation markers were also developed including large-scale syn-seismic fault，seismic fissure，syn-fold.The discovery of seismites in the southwestern Qaidam Basin indicates that tectonic movements were frequent and intense since the Pleistocene along the northern margin of the Kunlun Mountain and in the Qaidam Basin.The seismites made it possible to study the tectonic activities since the Pleistocene which has important significance for the study of the Qinghai-Tibet Plateau，basin-mountain coupling and paleo-earthquakes.
About author: Zhu Meng，a candidate for master degree in China University of Geosciences(Wuhan)，is engaged in comprehensive researches of neotectonic. About the corresponding author Li Dewei， professor and Ph.D. supervisor of China University of Geosciences(Wuhan), is engaged in teaching and research of continental dynamics.
Cite this article:
. Characteristics and significance of seismites in the Pleistocene in southwestern margin of Qaidam Basin[J]. JOURNAL OF PALAEOGEOGRAPHY, 2011, 13(6): 657-664.
. Characteristics and significance of seismites in the Pleistocene in southwestern margin of Qaidam Basin[J]. JOPC, 2011, 13(6): 657-664.
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