| 华山岩体中、新生代抬升的裂变径迹证据 |
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| 引用本文： | 万景林,李齐,王瑜.华山岩体中、新生代抬升的裂变径迹证据[J].地震地质,2000,22(1):53. |
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| 作者姓名： | 万景林 李齐 王瑜 |
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| 作者单位： | 中国地震局地质研究所,北京,100029 |
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| 摘 要： | 对采自华山岩体不同高度的磷灰石样品进行裂变径迹分析 ,所得结果结合相关地质资料认为 :(1)华山岩体抬升至少始于渐新世或始新世 ;(2 )华山主峰及北峰间可能发育一条对应于华山山前断裂的次级正断层 ,断距约 340m ;(3)据华山北峰样品研究 ,其各时段的平均抬升速率依次为2 9 2 6～ 2 5 0 5Ma ,V =0 183mm/a ;2 5 0 5～ 2 3 2 7Ma ,V =0 152mm/a ;2 3 2 7～ 2 0 59Ma ,V =0 0 19mm/a
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| 关 键 词： | 华山岩体 裂变径迹 抬升速率 |
THE FISSION TRACK EVIDENCE OF HUASHAN BATHOLITH UPLIFTING IN MESOZOIC-CENOZOIC |
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| Wan Jinglin,Li Qi,Wang Yu.THE FISSION TRACK EVIDENCE OF HUASHAN BATHOLITH UPLIFTING IN MESOZOIC-CENOZOIC[J].Seismology and Geology,2000,22(1):53. |
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| Authors: | Wan Jinglin Li Qi Wang Yu |
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| Abstract: | Apatite minerals separated from samples that were collected from elevations of 520m to 1 950m on the Huashan batholith, yielded fission track ages of (20 59±3 6)Ma to (29 26±3 3)Ma. The data suggest an uplift rate of 0 019 to 0 189mm/a. One zircon mean fission track age of (43 45±2 7) Ma also suggests that the Huashan batholith started to uplift in early E 2. We infer that there is a sub normal fault developed in north part of the Huashan batholith |
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| Keywords: | Huashan batholith Fission track Uplift rate |
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