| 杨永.西秦岭北缘漳县含盐盆地盆山耦合及成盐响应[J].甘肃地质,2026,35(1):27-34 |
| 西秦岭北缘漳县含盐盆地盆山耦合及成盐响应 |
| BASIN-MOUNTAIN COUPLING AND SALT FORMATION RESPONSE OF ZHANGXIAN SALT-BEARING BASIN IN THE NORTHERN MARGIN OF WESTERN QINLING MOUNTAINS |
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| DOI：10.27027/j.cnki.ISSN2097-6704.2026.01.003 |
| 中文关键词: 盆山耦合 沉积旋回 成盐响应 漳县含盐盆地 西秦岭北缘 |
| 英文关键词:basin -mountain coupling sedimentary cycle salt formation response Zhangxian Basin the margin of West Qinling Mountains |
| 基金项目:甘肃省国土资源厅，地质勘查基金项目“甘肃省漳县盐矿资源普查”（甘国土资勘发［2011］37 号） |
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| 中文摘要: |
| 为深入探讨西秦岭北缘漳县盆地成盐机制，将盆山耦合理论应用于漳县含盐盆地研究，分析了盆山耦合动力学来源、形成机制以及盐矿成盐阶段的响应。 研究显示漳县含盐盆地的形成与青藏高原隆升具有时空上的耦合关系。 多个沉积旋回及盐矿沉积反映出中新世中晚期青藏高原隆升的同时在西秦岭北缘漳县一带具有多个小幅度的振荡隆升变化，其远端响应为漳县盆地盆山耦合过程中盆地强烈拉张断陷与平静成盐的构造旋回表现，同时也反映多期次的干冷与湿热气候交替演化的古气候特征。 研究表明，漳县含盐盆地早期属山间凹陷盆地，晚期属山间压陷盆地。 |
| 英文摘要: |
| To thoroughly investigate the salt formation mechanism in the Zhangxian Basin at the northern margin of the Western Qinling Mountains, the basin -mountain coupling theory was applied to the Zhangxian saline basin. This study analyzed the origin of basin-mountain coupling dynamics, its formation mechanism, and the response during the salt mineralization stage. The study reveals that the formation of the Zhangxian salt - bearing basin exhibits spatiotemporal coupling with the uplift of the Tibetan Plateau. Multiple sedimentary cycles and salt deposits indicate that during the Middle to Late Miocene, concurrent with the uplift of the Tibetan Plateau, the Zhangxian area at the northern margin of the Western Qinling Mountains experienced several episodes of small -amplitude oscillatory uplift. The distant response manifested as intense tectonic rifting and quiet salt -forming cycles during the basin -mountain coupling process in the Zhangxian Basin, while also reflecting paleoclimatic characteristics of alternating dry -cold and wet -warm phases across multiple periods. Results indicate that the Zhangxian salt -bearing basin initially developed as an intermontane depression basin and later evolved into an intermontane graben basin. |
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