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研究了西伯利亚西部几个地点钻孔侏罗纪岩芯样中的植物微体化石。在有关组合中,Lycopodium sp.,Coniopteris spp.和Gleicheniidites sp.的孢子少,Klukiasporites sp.极少;代表性花粉有Pinus exilioides,P.disulgatus,Sciadopites sp.和Classopollis;微体浮游植物占优势,例如Crassisphaera sp.,Tasmanites sp.,Pterospermopsis eurypteris,P.harti和Cymatiosphaera sp.颇丰富,有时出现Pareodinia sp.用Trichodinium sp.。虽然各个组合中孢子、花粉、微体浮游植物在含量上有变化,但总的组成在西伯利亚西部不同地区尚稳定。此等微化石的颜色或有变化,它们(特别是微体浮游植物)可用来检测沉积有机质受热变质的成熟度级别。
Plant microflora in Jurassic core samples was drilled at several sites in western Siberia. Among the related combinations, Lycopodium sp., Coniopteris spp. And Gleicheniidites sp. Had few spores, few Klukiasporites sp. Representative pollens were Pinus exilioides, P..disulgatus, Sciadopites sp. And Classopollis. Phytoplankton dominates, For example, Crassisphaera sp., Tasmanites sp., Pterospermopsis eurypteris, P. harti and Cymatiosphaera sp. Very rich, sometimes Pareodinia sp. Trichodinium sp. Although the content of spore, pollen and phytoplankton varied in different combinations, the total composition was stable in different areas of western Siberia. The color of these microfossils may vary, and they (especially microflora phytoplankton) may be used to test the maturity level of thermally degraded sediments.