摘要
经最新的区域地质资料、岩石地层、砾石统计、同位素年龄以及野外构造观察等方面的研究认为:早白垩世黑龙江东部盆地群为统一的原型盆地,随着猴石沟组时期桦南隆起和密山隆起的隆升而被破坏。黑龙江东部盆地群中、新生代构造演化可分成6个阶段:①绥滨组—东荣组时期,黑龙江东部盆地群的北部处于坳陷阶段;②滴道组(裴德组)沉积时期,黑龙江东部进入伸展裂陷阶段,形成一系列孤立的小型断陷盆地;③城子河组(云山组)—穆棱组(珠山组)时期,黑龙江东部整体处于坳陷阶段,形成统一的原型盆地;④东山组时期,黑龙江东部盆地群进入伸展裂陷阶段;⑤猴石沟组时期,随着桦南隆起、密山隆起快速隆升,统一的东部盆地群遭到破坏,转向各个盆地的独立演化;⑥新生代,黑龙江东部各盆地独立演化,现今构造格局最后定位。
Based on the analysis of newly regional geology data, lithostratigraphy, gravels, isotope dating and tectonic observation in the field, the Early Cretaceous basin group in eastern Heilongjiang is a united prototype basin, which was destroyed along with the uplifting of Huanan-uplift and Mishan-uplifl during the time of the Houshigau Formation. The Mesozoic and Cenozoic tectonic evolution of the basin group can be divided into six stages： ① stage of Suibin Formation to Dongrong Formation, the northern part of basin group was on the depression; in Didao Formation （ Peide Formation）, formed a series （Yunshan Formation ） and Muling Formation （ Zhushan ② stage of small rifted basins; ③ stage of Chengzihe Formation Formation） , the whole region was on the depression phase, and formed an uniform prototype basin; ④ stage in Dongshan Formation, the basin group was on the extensional rifted; ⑤ stage of Houshigou Formation, the Huanan and Mishan-uplifts were quickly uplifted, and the uniform basin group was destroyed and to break up into several basins which started independent evolution for each; ⑥ stage in Cenozoic, the basin group has evolved independently in untie the tectonic framework ultimately formed.
出处
《世界地质》
CAS
CSCD
2008年第4期370-377,共8页
World Geology
基金
中石化东北地区晚古生代以来构造演化研究(G0800--06--ZS--327)
"兴蒙海槽"晚古生代构造演化(40739905)联合资助
关键词
黑龙江东部
盆地群
中、新生代
构造演化
eastern Heilongjiang
basin group
Meso-Cenozoic
tectonic evolution
