摘要
文中论及地质资料和微体化石样品取自莺－琼盆地LD30－1－1A、Y13－1－4，Y8－1－1和Y8－2－1井。研究的重点是第三起介形虫动物群特征及其地质意义，研究区第三纪介形虫化石比较丰富，并以Bradleya albatrossia,Krithe sawanensis,Cytherella posterotuberculata和Neocytheretta faceta等为优势代表，介形虫动物群的成分在垂向上的变化不显著，但其属，种多样性和优势程度呈现出一定的变化，根据介形虫动物群的分布及特征和渐新统一上新统划分与对比研究结果，讨论了崖城组，陵水组，三亚组，梅山组和莺歌海－黄流组介形虫化石组合及时代，并对第三纪古环境和海平升降作了解释。
The geological data and microfossil samples dealt with in this paper were collected from the wells Y8-2-1. Y8-1-1,Y13-1-4 and LD30-1-1A in Ying-Qiong Basin. The emphasis of this study is put on charateris-tics of Tertiary ostracod faunas and their geological significance. Ostracodes are relatively rich and with Bradleya albatrossia . Krithe sawanensis, Cytherella posterotuberculata and Neocytheretta faceta as the most predominant representatives in Tertiary. The vertical change of ostracod faunas in taxonomic composition is not obvious, but it shows a definite change in diversity and predominance of genera and species.On the basis of a detailed study of distribution and nature of ostracod faunas and classification and correlation of the Oligocene-Pliocene strata, ostracod assemblages and ages of Yacheng, Lingshui, Sanya, Meishan and Yinggehai-Huangliu Formations are discussed, at the same time, interpretation of palaeoenvi-ronment and fluctuation of sea level during the Tertiary are made.
出处
《中国海上油气（地质）》
1998年第3期174-179,共6页
China Offshore Oil and Gas(Geology)
