Pre-Drilling Magnetic and Gravity Survey of Novarupta, Katmai, Alaska

阿拉斯加卡特迈诺瓦鲁普塔预钻磁力和重力勘测

• 批准号: 8913744
• 负责人: Juergen Kienle
• 金额: $ 13.88万
• 依托单位: University of Alaska Fairbanks Campus
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1989
• 资助国家: 美国
• 起止时间: 1989-06-01 至 1992-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8913744&HistoricalAwards=false
• 关键词: Pre; Drilling; Magnetic; Gravity; Survey

This project is a small piece of a large multi-agency project (NSF,USGS,DOE) involving scientific drilling in Katmai National Park, Alaska. As envisioned at the present time, DOE will provide the drilling funds, and all three agencies will share in the cost of the associated science. Actual drilling is not to start until 1990 (subject to the availability of funds in DOE) but there are a number of predrilling investigations that will be carried out in order to site the drill holes in the optimum locations to achieve the scientific goals of the project. This award will provide funds to carry out three experiments to try to define the subsurface dimension of the 1912 Novarupta vent in preparation for the proposed drilling: (1) reinterpretation of existing aeromagnetic and ground-based magnetic survey data; (2) the acquisition of new magnetic data to fill critical gaps; and (3) a detailed micro-gravity survey of the Novarupta depression (caldera?).

该项目是涉及阿拉斯加州卡特迈国家公园科学钻探的大型多机构项目(NSF、USGS、DOE)中的一小部分。按照目前的设想，能源部将提供钻探资金，所有三个机构都将分担相关科学的费用。实际钻探要到1990年才能开始(视能源部的资金情况而定)，但将进行一些钻探前调查，以便将钻孔定位在最佳位置，以实现该项目的科学目标。这笔资金将用于开展三项实验，试图确定1912年诺瓦鲁塔喷口的地下尺寸，为拟议的钻探做准备：(1)重新解释现有的航空磁力和地面磁力测量数据；(2)获取新的磁力数据以填补关键空白；(3)对诺瓦鲁塔凹陷(火山口？)进行详细的微重力调查。