%0 Journal Article %T NEW KNOWLEDGE ABOUT EJECTIVE STRUCTURE IN SOUTHEAST SICHUAN
川东南“隔档式构造”的重新认识 %A Lü Bao-feng %A XIA Bin %A
吕宝凤 %A 夏斌 %J 天然气地球科学 %D 2005 %I %X Anticlines from ejective structure in southeast Sichuan distribute sinstral in horizontal plane and the vertical section showed as overlapping-structures beared in upper Mesozoic and lower Paleozoic.Based on the analysis of regional geology background, structural feature and exploration data, a viewpoint is advanced in this paper that the structural framework in southeast Sichuan was formed successively under the background of transition of regional stress field from tension to compresso-shear.The structural environment,the characteristic of basement and the deep-fault are control factors in their forming process. The evolutionary history could be divided into three stages as pre-folding tension,primary folding and final forming. Most of the anticlines we see today could be regarded as superimposed bodies of two-level flower-structure,and the folding mechanism contained three factors of bend folding,buck folding and shear folding. %K Ejective structure %K Folding %K Flower-structure %K Overprinting-structure %K Compresso-shear
隔档式构造 %K 褶皱作用 %K 花状构造 %K 构造叠合体 %K 压扭 %U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=E8CFCA71B77A2FF3&jid=ACDC74B90F609E2435847898490F3647&aid=849198DDD6C243B0&yid=2DD7160C83D0ACED&vid=7801E6FC5AE9020C&iid=38B194292C032A66&sid=B4E8EA49DAAEB84F&eid=4133DDB79B497495&journal_id=1672-1926&journal_name=天然气地球科学&referenced_num=1&reference_num=14