湘中龙山穹窿的构造演化 |
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引用本文: | 汪劲草 彭恩生. 湘中龙山穹窿的构造演化[J]. 湖南地质, 1999, 18(4): 229-231 |
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作者姓名: | 汪劲草 彭恩生 |
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作者单位: | 中南工业大学!长沙410083 |
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基金项目: | 国家自然科学基金!( 编号:49772152) |
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摘 要: | 湘中龙山穹隆是一个复合成因的穹窿。加里东期表现为共轴而非等势挤压造山,印支期经历了非共轴而等势的挤压造山。早期的构造样式为北东向的紧密线性倒转褶皱,晚期的构造样式为北东向的短轴背斜。
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关 键 词: | 穹窿 短轴背斜 倒转褶皱 构造演化 湘中龙山 |
TECTONIC EVOLUTION OF LONGSHAN DOME IN MIDDLEHUNAN |
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Abstract: | Longshan dome in middle Hunan is one with composite cause of formation.In Caledonian epoch,the dome experienced coaxial and unequal compression orogeny movement and in Indo-Chinese epoch,it shows uncoaxial and equal compression orogeny movement.Early,the tectonic style is a series of northeastern linear upset appressed fold and late the tectonic style is a northeastern brachyanticline. |
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Keywords: | Dome Brachyanticline Upset fold Tectonic evolution Longshan in middle Hunan |
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