Sublacustrine Volcanism

这项研究将基于对几座已知在相对较深的湖泊中喷发的火山的评估，开发和测试一个湖下喷发模型。将使用该模型对选定的一组喷发到爱达荷州古湖的火山进行评估，以测试其有效性。精确的野外观测是至关重要的。PI将详细记录喷发序列，并追踪悬崖边暴露的横向关系。其他信息将通过标准的薄片岩相学和有限的X射线衍射和微探针分析来获得。这项研究预计将证明，类似于苏尔特火山的喷发过程控制着火山喷发成深湖的演化。

This study will develop and test a model for sublacustrine eruptions based on evaluation of several volcanoes known to have erupted in relatively deep lakes. A selected set of volcanoes erupted into ancient Lake Idaho will be evaluated using the model to test its validity. Precise field observation is critical. The PIs will log eruptive successions in detail, and trace-out lateral relationships on cliffside exposures. Additional information will be obtained by standard thin-section petrography and limited x-ray diffraction and microprobe analysis. The study is expected to demonstrate that eruptive processes analogous to those inferred for Surtseyan volcanoes control the evolution of volcanoes erupted into deep lakes.