| 柴达木盆地新构造运动主要特征与成因机制 |
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| 引用本文： | 杨明慧.柴达木盆地新构造运动主要特征与成因机制[J].海洋地质与第四纪地质,1997,17(3):71-78. |
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| 作者姓名： | 杨明慧 |
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| 作者单位： | 中国地质大学 |
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| 摘 要： | 研究表明，在壳幔结构、地球物理背景、沉积物结构、多层关地幔和构造样式等方面，达木盆地与中国东部新生代裂谷类伸展盆地具有可比性，应该归属 展性盆 。盆地伸展和收缩作用相间进行，伸展起因于地幔底辟；而收缩受两人因素影响；（１）盆地伸展作用受相邻造山带反作用诱导的挤压应力；（２）板块碰撞传递的远程板内应力。在此基础邮新的构造期达木盆地演化的“双层模式”，即地幔上隆－地壳伸展；被动挤压＋板内应力－地壳收缩
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| 关 键 词： | 柴达木盆地 新构造运动 成因机制 地幔底辟 |
FORMATION CONDITION AND PROSPECT OF ZIRCON PLACER IN THE SEA AREA OF CHU ISLAND IN SHANDONG PROVINCE |
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| Zhao Kuihuan.FORMATION CONDITION AND PROSPECT OF ZIRCON PLACER IN THE SEA AREA OF CHU ISLAND IN SHANDONG PROVINCE[J].Marine Geology & Quaternary Geology,1997,17(3):71-78. |
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| Authors: | Zhao Kuihuan |
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| Abstract: | The formation of placer is a complicated process and is controlled by many factors,among which provenance is the material base of its formation and hydrodynamic condition is the most active factor.Through this investigation,we outlined the prospect areas of underwater zircon placer and made a comprehensive appraisal of it. |
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| Keywords: | zircon placer formation condition prospect appraisal Chu Island in Shandong |
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