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辽西及其毗邻地区中生代盆地的构造类型和特征 被引量:3

STRUCTURAL TYPES AND CHARACTERISTICS OF MESOZOIC BASINS IN WESTERN LIAONING AND ITS ADJACENT AREAS
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摘要 辽宁及其毗邻地区大地构造位置隶属于环太平洋构造带外带内陆区,该区分布有为数众多的中生代盆地,根据前晚三叠世基底出露情况,在该区划分出了61个中生代盆地,盆地的构造类型分为拗裂型、裂陷型、断陷型和断拗型4种类型,拗裂型盆地形成于晚三叠世一中侏罗世,又称早中生代盆地;断陷型和裂陷型盆地形成于晚侏罗世一早白垩世早期,又称晚中生代早期盆地;断拗型盆地形成于早白垩世晚期一晚白垩世,又称晚中生代晚期盆地,拗裂盆地与环太平洋深大断裂体系的热构造关系不明显,而与古板块构造的隆起和裂陷有关;裂陷和断陷盆地与环太平洋深大断裂体系的热构造密切相关,盆地严格受大兴安岭和下辽河-双辽两大热构造隆起带控制;断拗盆地与环太平洋弧后拉张的热体制有关。 The Western Liaoning and its adjacent areas, tectonically belonging to the inland area of the outer circum-Pacific tectonic belt, are developed with a lot of Mesozoic basins. According to the distribution of pre-Late Triassic basement, 61 basins are recognized. Based on their structural types, the basins are classified into four types, which are the depression-splitting basins, the splitting basins, the fault basins and the fault-depression basins. The depression-splitting basins were formed in Late Triassic-Middle Jurassic, and are therefore called the Early Mesozoic basins as well. The fault basins and^splitting basins, formed from Late Jurassic to the early stage of Early Cretaceous, are also called the early Late Mesozoic basins. The fault-depression type, known as the later Late Mesozoic basin, was formed between later Early Cretaceous and Late Cretaceous. The depression-splitting basins are related to the uplift and depression of paleoplate tectonics, but not to the thermal-tectonic system of the circum-Pacific deep-seated faults. The fault basins and splitting basins are closely related to the thermal-tectonic system of the circum-Pacific deep-seated faults, which strictly control the basins by the Daxinganling and Lower Liaohe-Shuangliao thermal-tectonic mole belts. The fault-depression type has a relation to the thermal-tectonic system located in the circum-Pacific rear-arc extension region.
作者 武广 王五力
出处 《地质与资源》 CAS 2003年第1期1-8,共8页 Geology and Resources
基金 辽河油田外围区大地构造格架和中新生代盆地构造演化项目资助
关键词 中生代 拗裂型盆地 裂陷型盆地 断陷型盆地 断拗盆地 辽宁 Western Liaoning Mesozoic era structural type basin characteristics
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参考文献3

  • 1武广 王五力.辽西中生代盆地形成的力学机制及其大陆动力学背景[A]..中国地质科学院沈阳地质矿产研究所集刊[C].沈阳:沈阳出版社,1997.167-183.
  • 2朱夏.试论中国中新生代油气盆地的地球动力学背景[A].见:朱夏编.中国中新生代盆地构造和演化[C].北京:科学出版社,1983.1-10.
  • 3杨继良.松辽断陷盆地的地质结构与油气[A].见:朱夏编.中国中新生代盆地构造和演化[C].北京:科学出版社,1983.187-197.

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