Additional pre-survey for the project "Establishing a reference profile for fast-spreading oceanic crust: Petrology and geochemistry of the Wadi Gideah cross section in the Oman ophiolite"

“为快速扩张的洋壳建立参考剖面：阿曼蛇绿岩中 Wadi Gideah 横截面的岩石学和地球化学”项目的额外预调查

• 批准号: 214445455
• 负责人: Professor Dr. Jürgen Koepke
• 金额: --
• 依托单位: Institut für Mineralogie
• 依托单位国家: 德国
• 项目类别: Infrastructure Priority Programmes
• 财政年份: 2011
• 资助国家: 德国
• 起止时间: 2010-12-31 至 2012-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/214445455?language=en
• 关键词: Additional; pre; survey; project; Establishing

Fast-spreading oceanic crust covering a large part of our planet is regarded as layered and homogenous. In spite of tremendous efforts by ship-based research, a complete modern chemical/petrological profile based on natural samples is still missing. In order to establish a reference profile through fast-spreading oceanic crust, the drilling mission "Oman Ophiolite Drilling Project" was established in in the Internatioanal Program ICDP in 2011, and a complementary proposal "Establishing a reference profile for fast-spreading oceanic crust: Petrology and geochemistry of the Wadi Gideah cross section in the Oman ophiolite" was submitted by a group of PI's to the SPP "Internationales Kontinentales Bohrprogramm (ICDP)" with the applicant of this proposal as main PI. Within that project we focus on (1) petrography and phase analytical studies, (2) bulk-analytical characterization, (3) quantifying sulfur cycling and (4) characterizing the evolution of hydrothermal alteration with depth by using Sr and O isotopes. This profile will be unique in terms of completeness of the crustal components and quality and coherence of analytical data to be obtained and will perfect support the ICDP Oman Ophiolite Drilling Project. The small proposal submitted here is aimed to complete our sample collection for the profile, by pre-investigation of additional samples obtained in a recent fieldtrip performed in the Wadi Gideah in February 2011. These additional samples are necessary to fill gaps of our main profile.

覆盖我们地球的大部分的快速扩张的海洋壳被认为是分层和同质的。尽管基于船舶的研究做出了巨大的努力，但基于天然样品的完整现代化学/岩石学概况仍然缺失。 In order to establish a reference profile through fast-spreading oceanic crust, the drilling mission "Oman Ophiolite Drilling Project" was established in in the Internatioanal Program ICDP in 2011, and a complementary proposal "Establishing a reference profile for fast-spreading oceanic crust: Petrology and geochemistry of the Wadi Gideah cross section in the Oman ophiolite" was submitted by a group of PI's to the SPP本提案的申请人作为主要PI的申请人“ Internationales Kontinentals Bohrprogramm（ICDP）”。在该项目中，我们关注（1）岩石学和相位分析研究，（2）批量分析表征，（3）量化硫循环的量化和（4）（4）通过使用SR和O同位素对水热改变的演变。从地壳组件的完整性以及要获得的分析数据的质量和连贯性方面，此概况将是独一无二的，并将完美地支持ICDP阿曼蛇晶钻探项目。此处提交的小提案旨在通过对2011年2月在Wadi Gideah进行的最新野外渡轮中获得的其他样本进行评估来完成我们的概况样本收集。这些其他样本对于填补我们的主要配置文件的空白是必需的。