Evolution of Wyoming Craton Lithosphere: Xenolithic Constraints From the Bearpaw Mountains, Montana

本文对蒙大拿中北部熊掌山第三纪（50 Ma）碱性岩中一套完整的下地壳和地幔包体进行了岩石学、地球化学和同位素（Pb、Sr、Nd & O）研究。这笔赠款将用于支持PI的研究，为一名研究生（Yoram Meroz先生）提供资金，并将用于支持PI领导下的地球科学同位素地球化学设施。捕虏体代表了怀俄明州克拉通岩石圈内不同层次的独特物质样本，深度至少为100公里。它们应该提供有关大陆地壳及其下伏岩石圈地幔的化学演化、年龄和物理性质的信息。

This a petrologic, geochemical and isotopic (Pb, Sr, Nd & O) study of a comprehensive suite of lower crustal and mantle xenoliths that occur in Tertiary age (50 Ma) alkaline rocks of the Bearpaw Mountains, north central Montana. The grant will support research of the PI, will provide funding for a graduate student (Mr. Yoram Meroz) and will contribute to the support of the isotope geochemistry facility in Earth Sciences that is under the directorship of the PI. The xenoliths represent a unique sampling of material from a wide variety of levels within the Wyoming craton lithosphere down to a depth of at least 100km. They should provide information on the chemical evolution, age, and physical properties of deep continental crust and ther underlying lithospheric mantle.