| 骊山凸起隆升的时限及其地质意义 |
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| 引用本文： | 王天毅,曾忠诚,杨涛,菅坤坤,谷开拓.骊山凸起隆升的时限及其地质意义[J].陕西地质,2019(1):42-48. |
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| 作者姓名： | 王天毅 曾忠诚 杨涛 菅坤坤 谷开拓 |
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| 作者单位： | 陕西省矿产地质调查中心;陕西省地质调查院 |
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| 基金项目： | 陕西省公益地质项目“渭河盆地三维地质结构调查及区域地壳稳定性评价(编号:[2007]01-11)”项目资助 |
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| 摘 要： | 根据渭河盆地灞河期和游河期的地层沉积特征及分布范围,推断骊山凸起的隆升时期为晚中新世,游河期渭河盆地形成了西安凹陷和固市凹陷两个沉积中心,现今渭河盆地凸起和凹陷的并存的地貌格局很可能自晚中新世就已经形成。渭河盆地周缘在8Ma左右存在一次强烈区域隆升事件,对秦岭的隆升有显著影响。
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| 关 键 词： | 骊山凸起 渭河盆地 秦岭 隆升 |
TIME LIMIT OF LISHAN UPLIFT AND ITS GEOLOGICAL SIGNIFICANCE |
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| Wang Tian-yi,Zeng Zhong-cheng,Yang Tao,Jian Kun-kun,Gu Kai-tuo.TIME LIMIT OF LISHAN UPLIFT AND ITS GEOLOGICAL SIGNIFICANCE[J].Geology of Shaanxi,2019(1):42-48. |
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| Authors: | Wang Tian-yi Zeng Zhong-cheng Yang Tao Jian Kun-kun Gu Kai-tuo |
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| Institution: | (Shaanxi Center of Minerals and Geological Survey,Xi’an 710068;Shaanxi Institute of Geological Survey,Xi’an 710054) |
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| Abstract: | Based on stratigraphic sedimentation and distribution in the Weihe Basin during the Bahe and Youhe periods,it is inferred that the uplift period of Lishan uplift was Late Miocene.Two sedimentary centers,Xi’an Sag and Gushi Sag,were formed in the Weihe Basin during the Youhe Period.The coexistence of uplift and depression in the Weihe Basin might be formed in the late Miocene.There was a strong regional uplift event present around the Weihe Basin at about 8Ma,which has a significant impact on the uplift of the Qinling Mountains. |
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| Keywords: | Lishan uplift Weihe Basin Qinling uplift |
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