Debris Avalanche and Blast Eruption, Raung Volcano, Indonesia

提出的研究的主要目标是确定爪哇Raung火山的碎屑雪崩与爆炸性火山活动之间的关系。此次泥石流全长60公里，是印尼乃至世界上最大的泥石流之一。它暴露得很好，很容易接近。该矿床与岩浆喷发沉积物呈层间层状，其中一些可能是类似于1980年5月18日圣海伦火山喷发的侧向爆炸沉积物。要研究的中心问题是，究竟是岩屑雪崩引起了岩浆喷发，还是岩浆喷发引起了岩屑雪崩。这个问题在科学上所知甚少，但对于解决有关火山碎屑涌动和流动发展的更一般的问题很重要。它对于评估火山喷发的危险性以及在有陡峭斜坡的大型层状火山地区制定疏散和应急计划也至关重要。

The primary goal of the proposed research is to determine the relationship between the debris avalanche of Raung Volcano, Java, to explosive volcanism. The debris avalanche, with its run out length of 60 kilometers is one of the largest in Indonesia and perhaps in the world. It is well exposed and readily accessible. The deposit is interstratified with deposits of magmatic eruptions, some of which are probably deposits of lateral blasts similar to Mount St. Helens blast of May 18, 1980. The central question to be pursued is whether or not the debris avalanche caused an associated magmatic eruption, or a magmatic eruption caused the debris avalanche. This issue is poorly known scientifically and is important for solving more general problems about the development of pyroclastic surges and flows. It is also critical in assessing eruption hazards and development of evacuation and contingency plans in areas of large stratovolcanoes with steeply sloping sides.