Question

地质英文翻译

1、区域构造特征：二连盆地的大地构造位置处在蒙古-兴安岭裂谷系的中部，是中代生后期在海西褶皱基底和侏罗系残留盆地基础上，经正向断层拉伸、裂陷作用而形成的一群中、小型山间湖盆，形态多为半地堑，主要沉积了白垩系生、储、盖地层。凹陷的面积数百到数千平方公里，多呈北东向展布，前白垩系基底的埋深3000-6000米。湖盆周缘被侏罗系和古生界露头形成的山丘和高地分隔和包围。白垩纪盆地经历了早期快速拉张、中期持续大规模裂陷、晚期萎缩消亡三大演化阶段。早期为快速堆积的一套类磨拉石建造，中期是滨浅湖-半深湖沉积（主要生储盖沉积期）、晚期为河流沼泽相沉积，至此以早白垩世为主体的湖盆沉积阶段宣告结束。后来盆地整体大幅隆升，长达数千万年之久，早白垩世沉积遭受强烈剥蚀直至夷平，上白垩统和第三系、第四系层序残缺不全，累计厚度在0-200米，为一套泛盆地堆积物，近水平产状，以大角度不整合覆盖全区。有研究者认为，该盆地是在左旋张扭的区域应力场背景下形成的具有剪切性质的裂陷盆地，以伸展构造样式为主，具有走滑特征，有利于形成各种圈闭、油气运移和富集成藏。

Answer 1

1, regional structural characteristics: the Erlian Basin tectonic position in Mongolia - Xing'anling of the central Rift Valley, is in the latter part of the Health Hercynian fold in the basement and Jurassic residual basin on the basis of the positive fault Rafah Shen, the rift role in the formation of a group, small mountain lake, shape for more than half graben, a major Cretaceous sediments of Health, certificates, covered formation. Depression area of several hundred to several thousand square kilometers, Duocheng distribution to the North East, the former Cretaceous basement of the depth of 3000-6000 meters. Were BASIN peripheral Jurassic and Paleozoic of the hill outcrop formed and separated and surrounded by high ground. Early Cretaceous basin has experienced rapid extension, the medium-term sustained large-scale rift, the demise of the late contraction phase of the three major evolution. Early for the rapid accumulation of a class molasse stone construction, medium-shallow lake is the foreshore - semi-deep lake sediments (mainly covered reservoir sedimentation period), advanced to the river swamps of the deposition, thus to the Early Cretaceous as the main lake sediment Stage came to an end. Later, a substantial uplift of the whole basin, as long as several million years ago, the Early Cretaceous sediment erosion strong until razed, the Upper Cretaceous and Tertiary, the fourth of the sequence incomplete, the total thickness of 0-200 metres, For the accumulation of a pan-Basin, near the level of occurrence, to the point of not covering the whole region integration. The researchers have considered that the basin is in the L-twisting of the regional stress field in the context of the formation of a shear nature of the rift basin, to extend the main structural style, with strike-slip characteristics and is conducive to forming all kinds of traps, Oil and gas migration and integration of the rich.