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安州盆地位于朝鲜北部清川江和大宁江的汇合入海处,走向北东,面积仅400平方公里(其中陆地面积约300余平方公里,滨海地区经钻井证实约100平方公里),为一小型含油盆地.该盆地在形成、发展过程中,中、新生代时期频繁的构造运动,起着重要的作用,它不仅奠定了盆地的基础、控制着沉积层的发育、稳定了盆地的构造格局,而且也为油气田的形成提供了有利的条件.作者将该盆地与中国东部的胶莱、北黄海、丹东等地进行分析对比后认为:它们同属于中朝准地台上次级负向构造单元.其沉积特征、生物群组合及构造演化规律具有相似性.现已证实,胶莱、丹东等地及本文将要论述的安州盆地,均已见及油气显示,因此,对位于上述各区之间的北黄海盆地,绝不能过早地排除寻求民用油流的可能性.一、安州盆地的生油地质特征安州盆地的构造位置为朝鲜北部狼林地块与平南拗陷交界处.前者是早元古代强烈隆起的古地块(属中国胶辽隆起的一部分),主要由花岗片麻岩、黑云母片麻岩、石英片麻岩及石英片岩、石英云母片岩、绢云母片岩等变质岩系组成,且伴有酸性—基性侵入
Located in the confluence of Qingchuan River and Daning River in the north of North Korea, Anzhou Basin leads to the north east and covers an area of only 400 square kilometers (including about 300 square kilometers of land area and about 100 square kilometers of proven offshore area) Oil-bearing basins.It plays an important role in the formation and development of the basin during frequent Meso-Cenozoic tectonic movements, which not only laid the foundation of the basin but also controlled the development of the sedimentary layers and stabilized the tectonic framework of the basin, But also provides favorable conditions for the formation of oil and gas fields.Analysis and comparison between the basin and the Jiaolai, North Yellow Sea and Dandong areas in eastern China indicate that they belong to the same group of sub-negative tectonic units The depositional characteristics, assemblage of biota and tectonic evolution have similarities, and it has been confirmed that both the Jiaonlai and Dandong areas and the Anzhou basin to be discussed in this paper have all been seen and the oil and gas displays have been seen. Therefore, Of the North Yellow Sea Basin, the possibility of seeking civilian oil flow can not be ruled out prematurely I. Geogenic Characteristics of Oil Production in the Anzhou Basin The structural position of the Anzhou Basin is that of the wolf forest plots and The former is an ancient palaeo-uplift of the Early Proterozoic (part of the Jiaoliao Uplift in China), composed mainly of granitic gneiss, biotite gneiss, quartz gneiss and quartz schist, quartz Mica schist, sericite schist and other metamorphic rocks, accompanied by acidic-basic intrusions