Sublacustrine Volcanism

这项研究将根据对已知在相对较深的湖泊中爆发的几座火山的评价，开发和测试湖底爆发模型。一组选定的火山喷发到古湖爱达荷州将使用该模型进行评估，以测试其有效性。精确的实地观察至关重要。PI将详细记录喷发序列，并追踪悬崖边暴露的横向关系。将通过标准薄片岩相学和有限的X射线衍射和微探针分析获得更多信息。这项研究预计将表明，类似于苏尔采扬火山推断的喷发过程控制着火山喷发成深湖的演变。

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.