Structural geology, Petrology, and Geochronology of metamorphic rocks of the La Sepultura unit as part of the Chiapas Massif/Southeast Mexico

在与德国和墨西哥科学家的联合项目中，我们打算调查墨西哥南部恰帕斯地块中心的“La Sepultura”单元的变质历史和大地构造位置。这将涉及详细的地质测绘、构造和岩石学调查以及同位素年龄测定。La Sputura单元由中高级变质岩和方解硅酸盐岩石组成，很可能是恰帕斯地块前中生代基底的一部分。深入了解La Selputura单元和恰帕斯地块的全部地质情况，对于重建墨西哥南部的古地理至关重要。从我们的研究中，我们期待着对更好地理解冈瓦那和劳伦西亚之间的大地构造联系做出重大贡献。除了该项目的科学目标外，我们还打算支持德国-墨西哥的合作，并帮助建立CICESE的墨西哥研究实验室。

In a joint project with German and Mexican scientists we intend to investigate the metamorphic history and geotectonic position of the "La Sepultura" unit in the centre of the Chiapas Massif, southern Mexico. This will involve detailed geological mapping, structural and petrological investigations, and isotopic age determinations. The La Spultura unit comprises middle- to highgrade metapelites and calcsilicate rocks and most probably is part of the pre-mesozoic basement of the Chiapas Massif. A profound understanding of the geology of the La Selpultura unit and the Chiapas Massif in total is crucial for the paleogeographic reconstruction of southern Mexico. From our studies we expect a major contribution for better understanding of the geotectonic connection betwenn Gondwana and Laurentia. Apart from the scientific aim of the project we intend to support the German-Mexican collaboration and to help setting up the Mexican research laboratories of the CICESE.