U.S.-Argentina Dissertation Enhancement: Basement-Cored Systematics; Structural Study of Sierra de Hualfin and Adjacent Uplifts, Sierras Pampeanas, NW Argentina

美国-阿根廷论文增强：地下室核心系统学；

• 批准号: 9908622
• 负责人: George Davis
• 金额: $ 2.94万
• 依托单位: University of Arizona
• 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: 1999-12-15 至 2001-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9908622&HistoricalAwards=false
• 关键词: U.S.; Argentina; Dissertation; Enhancement; Basement

Davis9908622This US-Argentina dissertation enhancement research proposal was submitted by Ms. Pilar E. Garcia, University of Arizona, under the sponsorship of Dr. George H. Davis. Ms. Garcia will work with Dr. Ernesto Cristallini of the Universidad de Buenos Aires in Argentina. She will be doing a detailed study of a well-exposed range in the Sierras Pampeanas of Northwest Argentina, to increase our understanding of the formation of basement-cored uplift mountain ranges.Basement-cored uplifts are irregular tectonic products because they occur several hundred kilometers from active plate margins where most mountains are usually formed, and because they involve brittle faulting and folding of continental, crystalline rocks at shallow levels within the crust. This anomalous nature of these uplifts makes their kinematics and dynamics of formation poorly understood. The chosen site is important because it has exposure of the basement-cover contact, which will permit observation at a critical interface. A better understanding of the structure of these ranges is critical to evaluate the formation of these tectonic elements and may lead to useful geometric and kinematic models. The understanding of foreland basement uplifts is a significant problem in structural geology.***

这份美国-阿根廷论文增强研究提案是由亚利桑那大学的Pilar E.Garcia女士在George H.Davis博士的赞助下提交的。加西亚将与阿根廷布宜诺斯艾利斯大学的Ernesto Cristallini博士合作。她将对阿根廷西北部Sierras Pampeas山脉一处暴露良好的山脉进行详细研究，以增加我们对基底岩心隆起山脉形成的理解。基底岩心隆起是不规则的构造产物，因为它们发生在距离大多数山脉通常形成的活动板块边缘数百公里的地方，而且因为它们涉及地壳内浅层大陆结晶岩石的脆性断层和褶皱。这些隆起的这种异常性质使得人们对它们的运动学和形成动力学知之甚少。选择的地点很重要，因为它暴露了地下室-盖子的接触，这将允许在关键界面上进行观测。更好地了解这些山脉的结构对于评估这些构造要素的形成至关重要，并可能导致有用的几何和运动学模型。对前陆基底隆起的认识是构造地质学中的一个重要问题。