Strain Partitioning During the Early Stages of Continental Collision: Uplift of the Alborz Mountains, Northern Iran

大陆碰撞早期阶段的应变分配：伊朗北部厄尔布尔士山脉的隆起

• 批准号: 9902932
• 负责人: Gary Axen
• 金额: $ 25.06万
• 依托单位: University of California-Los Angeles
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1999
• 资助国家: 美国
• 起止时间: 1999-07-01 至 2004-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9902932&HistoricalAwards=false
• 关键词: Strain; Partitioning; During; Early; Stages

9902932AxenEarly stages of continental collision are difficult to study as the features they leave are subsequently severely overprinted, however early features are important as they likely guide later deformation by the inhomogenity they impose. This project is aimed at documenting uplift and unroofing of the Alborz range of northern Iran, which is in the beginning stages of the collision between the Arabian peninsula and Iran which began in Pliocene time. The work involves structural, magmatic, denudational and uplift history of the Alam Kuh area and associated isotopic geochronology and geochemistry. Results are expected to shed light on the processes that occur early in continental collision, such as the synchroneity or diachroneity of widespread deformation and uplift following collision.

9902932 axen大陆碰撞的早期阶段很难研究，因为它们留下的特征随后严重重叠，然而早期特征很重要，因为它们可能通过它们施加的不均匀性来指导后来的变形。该项目旨在记录伊朗北部Alborz山脉的隆起和剥落，这是上新世阿拉伯半岛和伊朗之间碰撞的开始阶段。这项工作涉及阿拉姆库赫地区的构造、岩浆、剥蚀和隆升历史以及相关的同位素年代学和地球化学。研究结果有望揭示大陆碰撞早期发生的过程，如碰撞后广泛变形和隆起的共时性或历时性。