摘要
通过野外工作 ,在前人所划的坡子泉地区石炭系白山组内新发现三个角度不整合 ,而将白山组解体成四个组。结合古生物化石和同位素年龄资料 ,将狼泉组和坡子泉组划归下石炭统 ,黑石山组和马庄山组划归上石炭统。在此基础上 ,研究了新划四个组的沉积环境 ,总结了坡子泉地区石炭纪地壳演化简史 。
Three angular unconformities found in the field work in the previous Baishan Formation of the Carboniferous in Poziquan area help to subdivide Baishan Formation into four formations. Based on the fossil and isotopic data,L angquan Formation and Poziquan Formation are classified into L ower Carboniferous, while Heishishan Formation and Mazhuangshan Formation into Upper Carboniferous. The sedimentary envi- ronment of the four formations,and crustal evolution and stratigraphic association of the Carboniferous in the Poziquan area are studied,supplying a basis for the stratigraphic subdivision and correlation,and crustal evo- lution and geotectonic study as well as prospecting of the associated minerals.
出处
《新疆地质》
CAS
CSCD
1998年第3期212-220,共9页
Xinjiang Geology
关键词
哈密
坡子泉
石炭系
角度不整合
沉积环境
地层组合模式
Hami Poziquan Carboniferous angular unconformity sedimentary environment strati- graphic association model
