摘要:
通过近年来的1:20万区调工作,在青海中东部阿尼玛卿山一带,布青山群砂岩和板岩地层中,作者于玛多县花石峡,久治县章达旧址、河曲马场等多处地点,采获丰富的孢粉化石。经鉴定孢子花粉有32属61种,疑源类6属,其中主要属,种在国内外均为早三叠世代表分子。该群原划归“下二叠统”,据以上孢粉研究新资料,故布青山群的时代应订正为早三叠世沉积。
Abstract:
The author for the first time collected abundant sporopollen fossils from sandstone and slate of the Buqingshan Group in many, localities of the A’nyemaqen Mountains in the eastern-central part of Qinghai Province. A total of 32 genera and 61 species have been identified, in which spores of pteridophytes exceed pollen of gymnosperms and a certain quantity of elements of acritarchs are contained. The main genera and species in the above-mentioned spores and pollen are all Early Triassic representative elements both at home and abroad. The Buqingshan was originally assigned to the Lower Triassic. According to the new sporo-pollen data, the greater majority of the group should he considered to be the product of Farly Triassic deposition,
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