| 华北地块南部晚古生代—三叠纪盆山耦合关系 |
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| 引用本文： | 陈世悦.华北地块南部晚古生代—三叠纪盆山耦合关系[J].沉积与特提斯地质,2000,20(3):37-43. |
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| 作者姓名： | 陈世悦 |
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| 作者单位： | 石油大学资源系,山东东营,257062 |
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| 基金项目： | 博士后科学基金资助项目;石油大学博士基金资助项目 |
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| 摘 要： | 华北地块南部的晚古生代至中生代初期发育有多种类型的沉积盆地,其形成演化直接受控于秦岭造山带的主造山作用过程,泥盆纪－石炭纪是岭与华北地块的点接触碰撞时期,古秦岭洋和二郎坪弧后盆地同期逐步消亡,深化为陆壳基础上的残余海盆地及残余弧后盆地,二叠为面接触碰撞阶段,豫西小秦岭岭段首先隆升,成为向北的物源区,在商丹－北淮阳主缝合带及其弧后残余盆地消亡的同时,华北地块南部形成盆地,并成为旱二叠世华北陆表海的沉积中心,秦岭与华北地块全面碰撞发生于三叠纪,在造山变质变形广泛活动的背景下,华北地块则形成了统一的大型坳陷型盆地。
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| 关 键 词： | 造山带 盆山耦合关系 华北地块 晚古生代 三叠纪 沉积盆地 |
| 收稿时间： | 1999/11/22 0:00:00 |
| 修稿时间： | 1999-11-22 |
The basin-range coupling in southern North China block during the Late Palaeozoic to Triassic |
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| CHEN Shi-yue.The basin-range coupling in southern North China block during the Late Palaeozoic to Triassic[J].Sedimentary Geology and Tethyan Geology,2000,20(3):37-43. |
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| Authors: | CHEN Shi-yue |
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| Institution: | University of Petroleum, Dongying 257062, Shandong, China |
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| Abstract: | A variety of sedimentay basins are developed in southern North China block during the Late Palaeozoic to Triassic.The formation and evolution of the basins are directly controlled by major orogenic processes in the Qinling orogenic belt. According to the orogenic intensity and basin range coupling,three phases may be recognized for the collisional orogenic processes.The initial point collision occurred in the Devonian and Carboniferous,during which the Palaeo Qinling Ocean and Erlangping back arc basin were simultaneously consumed,and then evolved into their respective remnant oceanic basin and remnant back arc basin grounded upon the continental crust. The plane collision took place during the Permian,when the northern Qinling began to be uplifted as a northerly source of siliciclastic sediments. Afterwards, the basinal area was initiated in southern North China block in response to the consumption of the Shangdan North Huaiyang suture zone and remnant island arc basins, and is believed to be a depocentre of the North China epeiric sea during the Early Permian.The final complete collision of Qinling and North China block took place during the Triassic,resulting in the formation of a large sized depressed lake basin within the North China block against a background of the extensive metamorphism and deformation of the orogenic belt and collision related granitic magmatism in the Qinling area. |
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| Keywords: | basin orogenic belt basin range coupling Qinling North China |
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