东海海礁凸起、钱塘凹陷中、古生代地层展布探讨

2005年 25卷 第3期
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Study on the Distribution of Mesozoic and Paleozoic Layer in Haijiao Doming and Qiantang Depression in the East China Sea
高德章 唐建 薄玉玲
GAO De-zhang TANG Jian BO Yu-ling
中国石化 上海海洋油气分公司 研究院, 上海 200120
Institute of Shanghai Offshore Oil & Gas Company, SINOPEC, Shanghai 200120, China
基于东海海礁钱塘地区1:20万重磁成果, 采用小波多尺度分解、全磁纬变倾角化极等技术, 对该地区前新生代地层的展布与含油气远景进行了探讨。依据研究成果认为:研究区存在中生界, 可能存在古生界;沉积层底界面埋深大于4500m的地区可能存在侏罗纪暗色泥岩;研究采用的方法技术可行、有效, 可用于前新生代地层展布研究与含油气远景预测。
On the basis of 1:200000 gravity and magnetic results in Haijiao-Qiantang area in the East China Sea, using wavelet analysis and all magnetic latitude variable inclination turning to the pole, the distribution of pre-Cenozoic layer and the petroleum resources are discussed. It is considered:here exist Mesozoic group and Paleozoic group;in the area where the depth of bottom boundary of sedimentary stratum is greater than 4500m, Jurassic dark mud rock maybe exist;the study method and technique are feasible and available, and can be widely used in the study of distribution of pre-Cenozoic layer and forecasting oil-gas perspective.
海礁凸起; 钱塘凹陷; 重力异常; 磁力异常; 沉积层底界面; 中、古生代地层; 含油气远景预测; 小波多尺度分解; 全磁纬变倾角化极;
Haijiao doming; Qiantang depression; gravity anomaly; magnetic anomaly; bottom boundary of sedimentary stratum; Mesozoic and Paleozoic layer; oil-gas perspective; wavelet analysis; all magnetic latitude variable inclination turning to the pole;