Structural and Petrological Investigation of Four Tauride Ophiolites: Implications for the Evolution of Neo Tethys and the "Ophiolite Controversy"

四个金牛座蛇绿岩的结构和岩石学研究：对新特提斯演化和“蛇绿岩之争”的启示

• 批准号: 8721166
• 负责人: John Casey
• 金额: $ 8.98万
• 依托单位: University of Houston
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1988
• 资助国家: 美国
• 起止时间: 1988-04-15 至 1991-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8721166&HistoricalAwards=false
• 关键词: Structural; Petrological; Investigation; Four; Tauride

The Mesozoic history of the Alpine Middle East can be divided on the basis of the recognition of two distinct oceanic tracts that have evolved somewhat interdependently. The older Paleotethyan tract originally separated Laurasia from the Gondwana supercontinent but was closed when a microcontinent separated from Gondwana and moved towards Laurasia, causing the opening of the Neotethyan tract. Recent work in Turkey has shown the presence of remnants of well-preserved segments of both the Paleo- and Neo- Tethyan ocean basins. This project will study a suite of ophiolites in Turkey believed to represent ocean floor of these two ocean basins, and will address aspects of their origin and emplacement histories. Results bear directly ont he quite complex but overall convergent tectonics of the Mediterranean - Middle East region.

中东阿尔卑斯地区的中生代历史可以根据两个不同的海洋带进行划分，这两个海洋带在某种程度上是相互依存的。古特提斯板块最初将劳亚大陆与冈瓦纳超大陆分开，但当一个微大陆从冈瓦纳大陆分离并向劳亚大陆移动时，导致新特提斯板块的打开，古特提斯板块关闭。最近在土耳其的工作表明，古特提斯和新特提斯海洋盆地的遗迹保存完好。该项目将研究土耳其的一组蛇绿岩，这些蛇绿岩被认为代表了这两个海洋盆地的海底，并将研究它们的起源和就位历史。研究结果直接反映了地中海-中东地区相当复杂但总体上趋同的构造。