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FINDING OF sporo-pollen ASSOCIATION OF MANGROVE PLANT DURING THE LATE LATE PLEISTOCENE IN HONGKONG

Chinese Science Bulletin 1989年第16期34卷 1358-1363页

作者：周昆叔 Institute of Geology Academia Sinica Beijing

I studied Palynology of the Late Quaternary section in Chek Lap Kok, north Lantau in Hongkong (Fig. 1), from December 1985 to March 1986. The Quaternary sequence of a borehole at Chek Lap Kok was described by Dr. Raynor Shaw. The samples studied were provided by the Civil Engineering Office of the Civil Engineering Services Department, Hongkong Government. Among the three samples (buried underground 14.24—16.79m) including relics of plant, sporo-pollen association of the mangrove plant is found. There

关键词： sporo-pollen association of the mangrove plant late Late Pleistocene Quaternary paleoenvironment Hongkong

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Climate background of the evolution from Paleolithic to Neolithic cultural transition during the last deglaciation in the middle reaches of the Yellow River

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Chinese Science Bulletin 2002年第1期47卷 71-75页

作者： Zhengkai Xia Ge Chen Gongwang Zheng Fuyou Chen Junqing Han Peking Univ Dept Urban & Environm Sci Beijing 100871 Peoples R China

Shizitan in Jixian County, Shanxi Province, is a site of transitional period from Paleolithic to Neolithic. The dating and the sporopollen analysis show that the middle reaches of the Yellow River where the site is located had been maintaining a steppe environment during 35.1-9.4 kaBP, in which, 35.1-17 kaBP belonged to the last glacial. With cold and dry climate, this period featured a desert steppe environment. In the late of this period, the area had a cold and half-humid steppe environment. The 17.0-11.9 kaBP belonged to the early- and mid-period of the last deglaciation. Mild and half-arid steppe alternates with mild and half-arid steppe, with a small amount of deciduous broadleaf species. During the period of 11.9-10.5 kaBP, cold and dry glacial climate appeared once more, featuring a desert steppe environment. During 10.5-9.4 kaBP, it is mild and half-arid, and later transited toward warm and half-humid. The early phase of this period featured a steppe environment and the later transited into a

关键词： Jixian County in Shanxi Province Shizitan site sporo-pollen analysis last deglaciation Paleolithic-Neolithic cultural transition.

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THE STUDY ON FEATURES OF PALEOCLIMATIC VARIATION OF DRY AND COLD AREAS (Ⅱ)——PRELIMINARY STUDY ON FLUCTUATING MODEL OF PALEOCLIMATE OF QARHAN SALT LAKE REGION IN QAIDAM BASIN

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Science China Chemistry 1991年第3期34卷 338-344,346-351页

作者：黄麒孙宁军孟昭强刘海玲 Qinghai Institute of Salt Lakes. Academia Sinica Department of Chemical Exploration Guilin Institute of Metallurgy and Geology

Depositing ages of sediment in core CK6 of Qarhan Salt Lake were determined by usingmethods of ^(14)C, ^(230)Th and paleo-terrestrial-magnetism. Based on synthetic analyses for thevariation of the content of organic carbon, sporo-pollen composition and lithofacies, the fluc-tuating model of paleo-climate since 750 ka B.P. was set up. It is divided into 21 fluctua-ting epochs of climate, among them, 11 are warm and humid epochs, and 10 are dry andcold epochs.

关键词： organic carbon stratigraphy sporo-pollen composition undulating model of paleoclimate

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