摘要
黑龙江省东部龙爪沟群及其与鸡西群的对比研究已有30年的历史了。80年代出版了大量专著,地层古生物工作者对二个群地层划分和对比的方案逐步趋于一致(具然弘等,1982;顾知微,1982a;1982b,1982c,1983;顾知微等,1984;李尉荣等,1986;黑龙江省东部中生代含煤地层研究队,1986);90年代,沙金庚(1990,1991,1992)基于双壳类等古生物化石的新发现,提出将龙爪沟群和鸡西群时代修正为白垩纪或主要为白垩纪。
Palaeomagnetic and structural data suggest that the Longzhuagou Group should be divided into 2 series of sedimentary rocks, Shangyunshan formation and Kaibei formation, Both are predominantly marine. They were possibly formed at low latitude (15.1-23 N) and close relatively to the Nadanhada terrane. In contrast the predominantly coal bearing Peide and Zhushan formations were formed at high latitude (52.1-57.8N) and close relatively to the Jixi Group, which is the cover of Jiamusi terrane. During amalgamation of the terranes, the two kinds of strata were interlayened with each other structurally.
出处
《地层学杂志》
CSCD
北大核心
1992年第3期206-209,共4页
Journal of Stratigraphy
