| 胶东地区玲珑岩基隆升机制探讨 |
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| 引用本文： | 林少泽,朱光,严乐佳,姜芹芹,赵田.胶东地区玲珑岩基隆升机制探讨[J].地质论评,2013,59(5):832-844. |
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| 作者姓名： | 林少泽 朱光 严乐佳 姜芹芹 赵田 |
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| 作者单位： | 合肥工业大学资源与环境工程学院,合肥,230009 |
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| 基金项目： | 本文为国家自然科学基金重大研究计划资助项目（编号 91214301）资助的成果。 |
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| 摘 要： | 本文通过详细的野外构造观察,综合主干正断层运动学观测、擦痕应力场反演、岩体变形分析、岩脉与石英脉展布方位等多个方面,对胶东地区玲珑岩基的构造演化进行了有效地制约.研究结果表明,其为早白垩世的伸展穹窿构造,是NW—SE向区域性伸展的结果,并且北部的伸展与岩浆活动及金矿化作用要强于南部.在早白垩世强烈伸展与岩浆活动背景下,晚侏罗世侵位的玲珑岩基沿着倾向相背的两条大型脆性正断层(招平断裂带与焦家断裂带)以地垒构造形式发生隆升而最终出露地表,并非变质核杂岩型伸展构造.玲珑岩基在晚侏罗世侵位后并没有立即出露地表,而是在早白垩世区域伸展中才隆升与剥露,并伴随区内大规模金矿形成.玲珑伸展穹窿的厘定,一方面证实了区内早白垩世强烈岩浆活动是发生在NW—SE向伸展背景下,另一方面进一步验证了华北克拉通东部破坏的峰期出现在早白垩世.
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| 关 键 词： | 华北克拉通 伸展穹窿 玲珑岩基 正断层 应力场 北西—南东向拉伸 |
| 收稿时间： | 2012/9/11 0:00:00 |
| 修稿时间： | 6/2/2013 12:00:00 AM |
Discussion on Uplifting Mechanism of the Linglong Batholith
in the Jiaodong Region |
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| LIN Shaoze
,
ZHU Guang
,
Yan Lejia
,
JIANG Qinqin
,
ZHAO Tian.Discussion on Uplifting Mechanism of the Linglong Batholith
in the Jiaodong Region[J].Geological Review,2013,59(5):832-844. |
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| Authors: | LIN Shaoze ZHU Guang Yan Lejia JIANG Qinqin ZHAO Tian |
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| Institution: | School of Resourse and Environmental Engineering, Hefei University of Technology, Hefei, Anhui, 230009;School of Resourse and Environmental Engineering, Hefei University of Technology, Hefei, Anhui, 230009;School of Resourse and Environmental Engineering, Hefei University of Technology, Hefei, Anhui, 230009;School of Resourse and Environmental Engineering, Hefei University of Technology, Hefei, Anhui, 230009;School of Resourse and Environmental Engineering, Hefei University of Technology, Hefei, Anhui, 230009 |
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| Abstract: | |
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| Keywords: | North China Craton extensional dome Linglong batholith normal fault stress field NW—SE extension |
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