40 Ar/39 Ar Laser-Probe Grain Provenance Study of the Stratigraphic Record of Paleogene Tectonics, Pacific North- western U.S.

40 Ar/39 Ar激光探针是一种越来越容易使用的工具 这对研究 构造事件 该项目将试图解决几个 始新世盆地物源的构造问题 北方加州和俄勒冈州的单个碎屑年代测定 40 Ar/39 Ar激光对黑云母、云母、角闪石等矿物颗粒的激光辐照 探测技术。 其中包括震源的隆升历史 无论克拉马斯山脉是否隆起 以及构造旋转是否是 因素在Eocene。 研究结果还将 提供了一个测试和实际证明这一出处 法

The 40Ar/39Ar Laser Probe is an increasingly accessible tool that has great promise for studying the stratigraphic record of tectonic events. This project will attempt to resolve several tectonic issues concerning the provenance of Eocene basins in northern California and Oregon by dating individual detrital grains of biotite, while mica, and hornblende by 40Ar/39Ar Laser Probe techniques. These include the uplift history of the source terrains, whether or not the klamath Mountains was uplifted during the Eocene and whether tectonic rotation was a major factor during the Eocene. The results of the study will also provide a test and practical demonstration of this provenance technique.