El Chichon Volcano Proximal Deposits: Fragmentation and Dispersal of April 4, 1982 Products

埃尔奇琼火山近端沉积物：1982 年 4 月 4 日产品的破碎和扩散

• 批准号: 9205780
• 负责人: Michael Sheridan
• 金额: $ 7.9万
• 依托单位: SUNY at Buffalo
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1992
• 资助国家: 美国
• 起止时间: 1992-07-01 至 1995-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9205780&HistoricalAwards=false
• 关键词: El; Chichon; Volcano; Proximal; Deposits

This project focuses on the proximal products of the cataclysmic phase (1982) of El Chichon Volcano which have not been studied in detail before. Specific goals are: (1) to document the stratigraphy of the proximal deposits, (2) to determine the facies distribution of various proximal flow and surge units, (3) determine the type of eruptive activity that produced the various proximal units, (4) to understand the nature of transport and deposition in the proximal environment, (5) to interpret surface characteristics of tephra in various bedding types by using an imaging analysis with the SEM, (6) to investigate the role of hydromagmatism, and (7) to mimic the eruptive history through 3-D modelling. The models developed will be important for mitigation of volcanic risks at their similar volcanoes.

本项目的重点是近端产品的灾难 El Chichon火山阶段（1982年）， 细节之前。 具体目标是：（1）记录 近端沉积物的地层学，（2）确定相 各种近端流量和喘振单元的分布，（3） 确定产生各种火山喷发活动的类型， 近端单位，（4）了解运输的性质， 近源环境沉积;（5）解释地表 不同层理类型火山灰的特征 用扫描电镜进行图像分析，（6）探讨 岩浆水作用;（7）通过三维模拟火山喷发历史 建模 所开发的模型对于减缓气候变化具有重要意义。 火山爆发的风险。