在塞浦路斯俯冲区上方的中央塔里德斯 (土耳其) 中同时发生的上层地延伸和表面上升
Tunahan Aykut1, Cengiz Yıldırım2, I Tonguç Uysal3,4
1Eurasia Institute of Earth Sciences, Istanbul Technical University, Istanbul, Türkiye. aykut20@itu.edu.tr.
Nature communications
|April 25, 2025
概括
大约45万年前,中央金牛座经历了快速的表面升起和正常断层. 这项研究将地球深层过程与同时发生的表面变形和景观演变联系起来.
科学领域:
- 地质科学 地质科学
- 构造学 构造学 构造学 构造学
- 地质时间学 (Geochronology)
背景情况:
- 中部金牛座呈现出高浮雕地形,其复杂的升起历史与地幔过程有关.
- 表面升起相对于脆性变形的时间仍然不清楚.
研究的目的:
- 为了确定塞浦路斯潜水带上方上层地变形的时间和机制.
- 研究深层地幔动态与地表地质过程之间的关系.
主要方法:
- 与断层相关的石的U-Th地质年代学.
- 岩石样本的微观结构分析.
- 收集和分析故障滑动数据.
主要成果:
- 在上层地中发现了由北北南横向张力驱动的广泛的正常断层.
- U-Th测年揭示了从中期/晚期普莱斯托纪到全新纪的连续断层.
- 大约45万年前发生了大量的断层活动,与快速地表升起相吻合.
结论:
- 深层地幔过程与上层地变形相结合.
- 扩展断层和快速的表面升起可以同时发生.
- 这种合很快就会在主导着的构造板块中创建高浮雕的景观和断层区域.
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