摘要
近年来 ,在汤原断陷钻井地层中发现了较丰富的早白垩世孢粉化石。本文依据汤原断陷汤 D7井 45 8.0—110 0 .0 m井段新发现的孢粉化石 ,建立了 3个孢粉化石组合 ,即 :Cyathidites-Pilosisporites-Cardioangulina组合、Taxodiaceaepollenites-Pinuspollenites-Cyathidites组合和 Cyathidites-Cicatricosisporites-Triporoletes-Pilosisporites组合。孢粉组合完全可以与松辽盆地登娄库组对比 。
In the latest years, rich Early Cretaceous sporopollen fossils have been found from the subsurface strata in the Tangyuan Rift. Based on newly obtained material from the interval of 458.0 to 1 100.0m of well Tang D7, three sporopollen assemblages are established, namely the Cyathidites Pilosisporites Cardioangulina assemblage, the Taxodiaceaepollenites Pinuspollenites Cyathidites assemblage and the Cyathidites Cicatricosisporites Triporoletes Pilosisporites assemblage. These spo ropollen assemblages may be correlated with that of the Denlouku Formation of Songliao Basin, indicating their Aptian—Albian age (Early Cretaceous).
出处
《微体古生物学报》
CSCD
北大核心
2002年第4期407-416,共10页
Acta Micropalaeontologica Sinica
