摘要
重新研究了珠江口盆地LF13－2－1井3020－3272．5m井段的孢粉地层学，根据重新鉴定的孢粉资料，3140－3230m井段孢粉组合称栎粉－五边粉组合，可与珠三坳陷WC19－1－3井文昌组一神狐组及北部湾盆地WS1－3－1井流沙港组二段的孢粉组合对比，时代为中始新世，该井段以下12m厚的安山质凝灰岩，砂泥岩的孢粉组合称栎粉－桤木粉－紫箕孢组合，在南海北部陆架，这一孢粉组合可与WS1－3－1井流沙港组三段孢粉组合对比，时代为早始新世，建议将含该孢粉组合的这一岩组命名为“陆丰组”。
This paper deals with palynological stratigraphy in the 3020-3272- 5m interval of LF13-2-1 well, Pearl River Mouth Basin. The task is to restudy the division and correlation of mudstone in the 3140-3230 m interval. Based on the new palynological data, the assemblage of the interval between 3140m and 3230m is named Quercoidites-Pentapollenites assemblage, and compared with the assemblage of the Wenchang and Shenhu Formations of Zhu-3 Depression in Pearl River Mouth Basin and the second member of the Liusha-gang Formation in WS1-3-1 well, Beibu Gulf Basin, which are dated as middle Eocene. Underlying this interval there is an interval of 12m-thick andesitic tuff, sandstone and shale, from which Quercoidites-Al-nipollenites-Osmundacidites assemblage is discovered. On the northern shelf of South China Sea, the latter assemblage can only be compared with the third member of Liushagang Formation in the WS1-3-1 well, Beibu Gulf Basin. Accordingly, it is named Lufeng Formation and its age belongs to early Eocene.
出处
《中国海上油气（地质）》
1998年第3期168-173,共6页
China Offshore Oil and Gas(Geology)
