| 南美西北部典型含油气盆地构造特征 |
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| 引用本文： | 杨福忠,魏春光,尹继全,张春雷,谢寅符.南美西北部典型含油气盆地构造特征[J].大地构造与成矿学,2009,33(2). |
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| 作者姓名： | 杨福忠 魏春光 尹继全 张春雷 谢寅符 |
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| 作者单位： | 中国石油勘探开发研究院,北京,100083 |
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| 摘 要： | 依据盆地处于造山弧的位置不同,将南美西北部盆地群分为弧前盆地、弧内盆地和弧后盆地三类。同一动力学背景下在不同构造部位形成了三类盆地不同的构造特征。弧前盆地具有地垒-地堑式裂陷盆地特点,发育断块油气藏,是安第斯俯冲增生带之上的近东西向张性盆地;弧内盆地位于强烈挤压隆升的造山带之内,是造山带内局部变形相对较弱的地区,发育叠瓦逆冲断层、双重构造和冲起构造;弧后盆地以逆断层反转构造和低幅度背斜构造为主,断裂系统具有走滑性质,是斜向弱挤压环境下的产物,构造平面上具东西向分带的特点,圈闭类型主要是低幅度背斜和岩性圈闭。
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| 关 键 词： | 含油气盆地 构造特征 圈闭类型 安第斯俯冲带 南美 |
Structural Characteristics of Typical Oil-Bearing Basins in Northwest of South America |
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| YANG Fuzhong,WEI Chunguang,YIN Jiquan,ZHANG Chunlei,XIE Yinfu.Structural Characteristics of Typical Oil-Bearing Basins in Northwest of South America[J].Geotectonica et Metallogenia,2009,33(2). |
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| Authors: | YANG Fuzhong WEI Chunguang YIN Jiquan ZHANG Chunlei XIE Yinfu |
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| Affiliation: | Research Institute of Petroleum Exploration & Development;PetroChina;Beijing 100083 |
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| Abstract: | Sedimentary basins in northwest of South America are divided into three types:fore-arc basins,inner-arc basins and back-arc basins.The three types of basins show different structural characteristics as they lie in different tectonic location,even if they were in the same dynamic setting.Fore-arc basin is one type of tensional rift basins developed along the Andes subduction zone.It developed a series of horst and graben systems and hydrocarbon reservoirs are developed in some fault blocks.Inner-arc basin is... |
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| Keywords: | South America Andes subduction zone oil-bearing basin structural characteristics trap type |
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