Interpretation of New Multi-Disciplinary Geophysical Data from Southern Tibet

9218600克伦佩雷尔青藏高原是地球上最突出的大陆地貌，也可能是最具争议的地貌之一。这场争议源于固有的复杂性和数据的缺乏。对高原地壳结构和岩性的了解对于解决所涉及的问题至关重要--这些问题对于理解形成大陆岩石圈的一些最基本的过程至关重要。经过十年的政治努力，Cocorp集团成功地与中国地质矿产部(MGMR)建立了合作关系，以收集喜马拉雅/青藏高原的地震反射数据。作为INDEPTH(国际西藏和喜马拉雅)项目的初步测试阶段，1992年夏季在西藏南部采集了100公里长的剖面。斯坦福大学地壳地球物理课题组受邀进行了一次“搭便式”实验。该小组采取了多学科方法，获得了广角反射、交叉线、重力、磁力和遥感数据。它们的目的是提供岩性控制，以解决现有模型的丰富之间的如此重要的问题，并记录完整解释Cocorp主剖面所需的辅助数据。该项目涉及对这一独特数据集的分析和解释，并将在INDEPTH项目下与Cocorp小组和中国MGMR科学家密切合作进行。***

9218600 Klemperer The Tibetan Plateau is the most prominent continental feature on our planet and probably one of the most controversial. The controversy stems from the combination of inherent complexity and lack of data. Knowledge of the crustal structure and lithology of the plateau is essential to addressing the questions involved - questions that are central for the understanding of some of the most fundamental processes shaping the continental lithosphere. Following a decade of political efforts, the COCORP group managed to establish collaboration with the Chinese Ministry of Geology and Mineral Resources (MGMR) to collect seismic reflection data across the Himalaya/Tibetan plateau. As the initial test phase of project INDEPTH (International Deep Profiling of Tibet and the Himalaya), a 100-km long profile has been collected in southern Tibet during the summer season of 1992. The Crustal Geophysics group of Stanford University was invited to conduct a "piggy-back" experiment. The group took a multi-disciplinary approach, and acquired wide-angle reflection, cross-lines, gravity, magnetic and remote-sensing data. Their purpose was to provide the lithological controls so important in resolving between the wealth of existing models, and to record auxiliary data needed for the complete interpretation of the main COCORP profile. This project involves the analysis and interpretation of this unique data set and will be undertaken in close collaboration with both the COCORP group and the Chinese MGMR scientists under project INDEPTH. ***