| 晚印支期以来中国南方大陆的构造演化与油气分布 |
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| 引用本文： | 付孝悦,肖朝晖,陈光俊,张汉荣.晚印支期以来中国南方大陆的构造演化与油气分布[J].海相油气地质,2002,7(3):37-43. |
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| 作者姓名： | 付孝悦 肖朝晖 陈光俊 张汉荣 |
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| 作者单位： | 中国石油化工股份有限公司南方勘探开发分公司 |
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| 摘 要： | 中国南方大陆于中三叠世末的印支期结束海相沉积历史,进入陆内构造演化阶段。中一新生代发生显著的陆内造山与板内变形,并存在三种不同的造山与变形机制:晚印支期—早燕山期为发生于陆—陆或弧—陆之间的碰撞造山,伴生形成一批前陆盆地;中燕山期为发生于板内的基底拆离隆升造山和板内递进变形,伴生形成山前、山间磨拉石盆地;晚燕山期—喜马拉雅期为大陆蠕散、壳幔隆升而引起的基底隆升剥离造山和伸展变形,伴生形成大型陆内裂谷盆地。晚印支期以来的构造作用在平面上表现为由老至新、自强而弱的递进推覆序列,根据变形强度的差异可划分为 A、B、C、D 四个变形带,它们对海相油气的影响也由强而弱。处于 A、B 两个变形带的海相油气系统已遭受强烈的破坏;有利的勘探领域为处于 C、D 两个变形带的地区、前陆盆地掩覆的海相系统以及板缘推覆构造带掩覆的“影子盆地”。中一新生代前陆层序和大型裂谷盆地亦具广阔的油气勘探前景。
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| 关 键 词： | 构造演化 造山运动 海相地层 中生代 新生代 油气分布 油气勘探 中国南方 |
Tectonic Evolution and Hydrocarbon Distribution in South China Continent since Late Indo-Sinian Epoch |
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| Fu Xiaoyue,Xiao Zhaohui,Chen Guangjun,Zhang Hanrong.Tectonic Evolution and Hydrocarbon Distribution in South China Continent since Late Indo-Sinian Epoch[J].Marine Origin Petroleum Geology,2002,7(3):37-43. |
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| Authors: | Fu Xiaoyue Xiao Zhaohui Chen Guangjun Zhang Hanrong |
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| Institution: | Fu Xiaoyue Xiao Zhaohui Chen Guangjun Zhang Hanrong |
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| Abstract: | The marine deposition history was concluded in the South China continent and turned into the intra-continental tectonic development at the end of Middle Triassic Indosinian move- ment.The prominent intra-continental orogenies and intra-plate deformation happened during Mesozoic and Cenozoic eras were caused by three different orogenic and deformation mecha- nisms:firstly the late Indosinian-early Yanshanian land-land or arc-land collisional orogeny which were along with the forming of some foreland basins;secondly the middle Yanshanian intra- plate basement decoupling uplift orogeny and intra-plate ag- grading deformation which were companied with the generation of intermont and/or piedmont molasse basins;thirdly the late Yanshanian-Himalayan peeling orogeny of basement uplifting and stretching deformation caused by the continental diverging and crust-mantle uplifting,which engendered giant intra-conti- nental rift basins in simultaneity.Since the late Indosinian e- poch,the tectonic events have dramatically affected the ma- rine hydrocarbon generation and migration.Four deformation belts,Belts A,B,C and D,can be divided according to the deformation extent.The hydrocarbon systems situated in Belt A and Belt.B have been intensively destroyed.The underlying favorable exploration fields are the reshaping Belt C and Belt D and the “shadow basin” overlapped by foreland marine se- quences and plate margin thrusts.The Mesozoic-Cenozoic foreland basins and giant rift basins also have great exploration potential. |
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| Keywords: | Mesozoic Cenozoic Orogeny Tectonic evolution Tectonic deformation Marine strata Hydrocarbon distribution Petroleum exploration Southern China |
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