河南西南部含恐龙蛋化石盆地沉积及构造特征 |
| |
引用本文: | 周世全,梁新权,冯祖杰.河南西南部含恐龙蛋化石盆地沉积及构造特征[J].大地构造与成矿学,2002,26(3):306-313. |
| |
作者姓名: | 周世全 梁新权 冯祖杰 |
| |
作者单位: | 1. 河南省地质矿产勘查开发局第一地质勘查院,南阳,4730032 2. 中国科学院广州地球化学研究所,广东,广州,510640 3. 南阳师范学院地理系,南阳,473061 |
| |
基金项目: | 湖南省科研项目,920020, |
| |
摘 要: | 位于河南西南部的东秦岭造山带,在后造山阶段形成了一系列NW—SE向的中、新生代地壳表层断陷盆地,堆积了一套类磨拉石红色建造,含有丰富的恐龙蛋化石。盆地两侧或一侧都有长期活动的大断裂控制,具有走滑、逆冲性质。盆内发育不同规模的舒展褶皱或突起,断层以正断层为主,规模较小,方向分散。盆地发展经历了燕山(Ⅲ-V幕)和喜山旋回两个阶段,构造应力场以总体挤压、局部拉伸为特征,且经历了多次挤压、拉张交替转化。
|
关 键 词: | 东秦岭造山带 断陷盆地 沉积与建造 构造特征 中、新生代 |
文章编号: | 1001-1552(2002)03-306-08 |
修稿时间: | 2001年9月28日 |
SEDIMENTARY AND TECTONIC CHARACTERISTICS OF THE OOLITHIAS OF DINOSAURS CONTAINING BASINS IN SOUTHWESTERN HENAN |
| |
Abstract: | In southwestern Henan,a series of Me sozoic-Cenozoic supracrustal faul t and basins are filled with red molasses-like formation in whic h contain aboundant oolithias of din osaurs,formed in the postorogenic s t age of the east Qinling orogenic belt,and controlled by the great and active NW-SE-trending strike-slip or thrust faults along one or two sides o f the basins.In these basins,there a re wide-opened folds,flexures and normal faults developed under the te ctonic stress fields of compression with local extension or the alternating of transition during the late Yanshan(fromⅢ-V phases)and early Himalayan cycles. |
| |
Keywords: | East Qinling orogenic belt fault basins sedimentation and formation tectonic characteristics Mesozoic-Cenozoic Era |
本文献已被 维普 万方数据 等数据库收录! |
|