Age, Origin, and Tectonic Significance of Mesozoic Rocks in the Magdalena-Margarita Region, SW Baja California Sur, Mexico

吸积大洋的边缘平行平移的作用 压扭造山带是现今研究的热点。 这 是一个跨学科的研究， 墨西哥南南下加利福尼亚附近岛屿上的海洋岩石。 的 岛屿包括岛弧组合、蛇绿岩、 蓝片岩相俯冲相关的岩石和稀疏的覆盖， 年龄不详，但被认为是中生代。 本研究 将决定结晶、编码和 岩浆岩的变质作用，并将获得地球化学， 生物地层、构造和古地磁数据。 结果 将被用来对比西部和南部的构造断层 墨西哥和确定的时间和幅度的保证金平行 流离失所。 这些发现将对以下方面产生重要的限制： 西部科迪勒拉山脉南部的构造演化 北美车牌。

The role of margin-parallel translations of accreted oceanic terranes is of current interest in transpressional orogens. This is an interdisciplinary investigation of deformed and metamorphosed oceanic rocks on islands off Baja California Sur, Mexico. The islands contain island arc assemblages, ophiolitic rocks, blueschist-facies subduction-related rocks and sparse cover, the ages of which are unknown but thought to be Mesozoic. This study will determine the ages of crystallization, coding, and metamorphism of the igneous rocks and will obtain geochemical, biostratigraphic, structural and paleomagnetic data. The results will be used to correlate tectonic terranes in western and southern Mexico and to determine the timing and magnitude of margin-parallel displacements. These findings will place important constraints on the tectonic evolution of the southern Cordillera of the western North American plate.