关键词: 南极,普里兹湾,冰海沉积,全新世,古气候

Abstract:

Glacial marine sedimentation is the most important process contributing to the sediments of the Prydz Bay, Antarctica, based on the study of sedimentology from core NP93 2.The results of 14 C Data show that lower boundary of core NP93 2 is about (12850±800) aB.P.,and top boundary is about (3100±800) aB.P.. Holocene sedimentation characteristics and paleoclimate variation have been discussed by the results of grain size,minerial composition, micropalaeoniology. The apparent climate change occurred at 75cm, which reflects the last glacial stage and Holocene transition.More than four paleoclimate stages were discovered during Holocene, and were consistent with the world glacial movement curves.