河南理工大学学报：自然科学版2012，Vol.31Issue(6)：674-678,701,6.
豫西南晚白垩世盆地断裂构造和沉积特征的白相似性分析
Similarity analysis of rift structure and sedimentary in basins of southwestern Henan province, Upper characteristics Cretaceous
摘要
Abstract
In Upper Cretaceous, southwestern Henan province, from north to south, successively exist Songpin basin, Xiaguan basin, Xixia basin, Taohe basin and Liguanqiao basin, all of those arrange north-west with YanHang type. With the analysis of characteristics of a basin-controlling fault, we found that active Upper Cretaceous faults are conspicuous selfsimilar with fractal value 1. 228 3 and Correlation coefficient 0. 999, and the primary cause of that is the attitude alteration of main active zones 1 and 2 of Qinling Orogen belt in south- western Henan province, and that the right order pinnate fracture of upper cretaceous turn up with fractalfer- ture. Upper Cretaceous basins controlled by fractures are provided with selfsimilarity in shape and in deposit characteristic. In shape, either single basin or a group of basins are narrower in west than in east; in deposit characteristic, either single basin or a group of basins are provided with depocenters closer to and parallel the south controlling fault, from west to east, the sediment granularity of those gradually are thinner, the sedimen- tary facies of those gradually change from alluvial to a meandering river or a littoral and shallow lake. The conclusion is important to the analysis of the sedimentary and tectonic background of Upper Cretaceous basin and geotectonic nature of temporal Qinling orogenic belt.关键词
晚白垩世/盆地/自相似/豫西南Key words
Upper Cretaceous/basin/selfsimilarity/in southwestern Henan province分类
天文与地球科学引用本文复制引用
曹高社,徐国强,高立祥,林玉祥,杨启浩,徐光明..豫西南晚白垩世盆地断裂构造和沉积特征的白相似性分析[J].河南理工大学学报：自然科学版,2012,31(6):674-678,701,6.基金项目
中石化重大前瞻性资助项目（CW8004）7-2s-165-01） （）
河南理T大学博士基金资助项目 （）
