Sector Collapse-Generated Debris Avalanche-Cohesive Debris Flow Transformations at Decade Volcano Mount Rainier, Washington

9316739沃伊特，拟议的研究侧重于泥石流，旨在为国际减少自然灾害十年火山方案作出贡献。它的总体目标是通过描述矿床特征和重建源区，增进我们对过去部门崩塌的了解，并增进我们对泥石流雪崩转化为粘性泥石流的机制的了解。这些目标将通过详细研究流动沉积物中的巨粒和基质相关系，以及详细的岩性、火成岩结构、关键蚀变矿物和结构的巨粒填图来实现。拟议研究的一项主要任务是确定Greenwater Lahar-Osceola Mudflow矿床中的巨岩和相邻基质的特征。这项研究应大大有助于我们了解雷尼尔山和世界各地类似火山的粘性泥石流过程和危害。

9316739 Voight The proposed research focuses on debris flows and is intended as a contribution to the Decade Volcano Program of the International Decade of Natural Disaster Reduction (IDNDR). It has the general objectives to enhance our understanding of past sector-collapses via characterization of deposits and reconstruction of source areas, and to improve our understanding of mechanisms of transformation of debris avalanche to cohesive debris flows. These objectives will be met through detailed study of megaclast and matrix facies relationships in flow deposits, and detailed megaclast mapping of lithologies, igneous structures, key alteration minerals, and textures. A primary task of the proposed research is to characterize the megaclasts and adjacent matrix in the Greenwater Lahar-Osceola Mudflow deposit. The study should significantly contribute to our understanding of cohesive debris flow processes and hazards at Mount Rainier and similar volcanoes worldwide.