A Detailed Study of Magma Mixing at Chaos Crags, Lassen Volcanic Center, CA

9303791戴维森20年的高精度的整体地球化学分析，虽然扩大了我们的整体理解的作用，贡献组件，未能提供一个完整的模型岩浆成因的收敛边缘。 在岩浆房过程被识别、理解和量化之前，大统一假说将继续成为循环辩论的主题。 我们提出了一个不同的方法。 拉森火山国家公园的混沌岩长期以来被认为是岩浆混合的典型结果（Heiken和Eichelberger，1980）。 通过采样的相互作用的长度尺度（毫米-厘米，而不是手样品），我们的目标是实现定量的混合过程中，其对散装化学的影响，其整体的重要性，持续发展的最南端的火山edilisation的喀斯喀特山脉的了解。

9303791 Davidson Twenty years of high precision bulk geochemical analyses, while broadening our overall understanding as to the role of contributing components, has failed to provide a complete model for magma genesis at convergent margins. Until magma chamber processes can be identified, understood and quantified, grand unifying hypotheses will continue to be the subject of circular debate. We propose a different approach. Chaos Crags in the Lassen Volcanic National Park has long been recognized as the classic result of magma mingling (Heiken and Eichelberger, 1980). By sampling at the length scales of interaction (mm-cm; rather than hand samples) we aim to achieve a quantitative understanding of the mingling process, its effects on bulk chemistry, and its overall importance to the sustained evolution of the southernmost volcanic edifice of the Cascade Range.