摘要
以松辽盆地西部斜坡带为研究区,结合野外露头及钻测井资料,围绕套保—平安镇地区开展沉积特征研究。对海36井进行层序地层划分,自下而上共分为SB1,SB2和SB3三个不整合面,识别并划分单井沉积相,在单井沉积相工作基础上,进一步建立沉积相展布模式,绘制西部斜坡区沉积体系图。结果表明:(1)西部斜坡区主要发育三角洲及湖泊沉积体系;(2)套保—平安镇地区的青山口组沉积时期主要物源来自于西部白城—英台物源,次要物源来自东北部的讷河物源。
Taking the western slope area of Songliao Basin as the study area,combined with field outcrop and drilling and logging data,the sedimentary characteristics of Taobao-Ping anzhen region were studied.The sequence stratigraphy of Well Hai 36 was analyzed,with three unconformities,namely SB1,SB2 and SB3 identified from bottom to top,and the single-well sedimentary facies identification was undertaken.Based on the single-well sedimentary facies analysis,the distribution model of sedimentary facies was subsequently established and the sedimentary systems of western slope area were mapped.The results show that:①Delta and lacustrine sedimentary systems are mainly developed in the western slope area;②The main provenance of Qingshankou Formation deposition in Taobao-Ping anzhen region is the Baicheng-Yingtai that locates to the west of the study area and the secondary provenance is Nehe that locates to the northeast of the study area.
作者
李佳桐
单玄龙
赵容生
徐川
白晓晗
沈梦蓉
LI Jia-tong;SHAN Xuan-long;ZHAO Rong-sheng;XU Chuan;BAI Xiao-han;SHEN Meng-rong(College of Earth Sciences,Jilin University,Changchun 130061,China)
出处
《世界地质》
CAS
2021年第1期93-99,共7页
World Geology
基金
国家自然科学基金项目(41790453)。
