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The Discovery and Significance of the Fossil Woods in the Bottom of Chetougou Formation in Xiejia Section, Xining Basin

详细信息

责任者：Chen Chuanfei (Key Laboratory of Western China’s Environmental Systems ; College of Resources and Environments ; Lanzhou University ; Lanzhou 730000 ; China) ; Miao Yunfa
刊名：Acta Geologica Sinica
出版年：2009
卷期：83(8)
关键词：木化石 ; fossil wood ; 青海 ; Qinghai Province
页码：p.1104-1109
图表：3 illus., 1 table, 24 refs.
分类号：1102
issnNo：ISSN0001-5717
isbnNo：CN11-1951/P

摘要

Through the comprehensive analysis of the buried fossil woods characteristics, rock-layer facies and sedimentary environment, the authors consider that they are adult trees growing near the bank of river, and spacing in the rows ranging from 3～8 meters, which formed the good plant communities with a certain spatial structure. Then, the uplift of the vicinal mountains and the development of arid climate in this area, the plants were buried and the metasomatism with plaster took place, and then formed the calcium sulfate fossil woods, which could show the climate deteriorated in the region since the early Miocene.