Xenoliths of Mauna Kea, Hawaii: Interpreting an Igneous Cumulate Environment Through Whole-Rock and Mineral Major- and Trace-Elements

该提案涉及详细审查累积- 纹理和层状火成岩从地质环境 尚未对累积过程进行全面评估。 该项目计划对数百个莫纳克亚山进行全面研究 捕虏体来自于许多锥状体。 PI将适用于 岩相学、电子探针、离子探针、XRF、INA和 O-同位素，用于开发地壳/累积过程模型， 形成堆积岩的液体成分， 不同岩石类型之间的关系， 晶体/晶体和晶体/熔体分馏的封闭 火成环境 这些结果应有助于更好地 了解累积过程，并限制未来 夏威夷玄武岩岩浆的结晶模型。

This proposal addresses the detailed examination of cumulate- textured and layered igneous rocks from a geologic environment not yet thoroughly evaluated in terms of cumulate processes. This project plans a comprehensive study of hundreds of Mauna Kea xenoliths from many cinder cones. The PIs will apply petrography, electron microprobe, ion microprobe, XRF, INA, and O-isotopes to develop models for crustal/cumulate processes, compositions of liquids that produced the cumulate rocks, relationships among the different rock types, and the attending crystal/crystal and crystal/melt fractionations for a closed igneous environment. The results should contribute to a better understanding of cumulate processes, and constrain future crystallization models for Hawaiian basaltic magmas.