A Synthesis of Geochemical Results from the Southeast Indian Ridge

东南印度洋中脊地球化学结果综合

• 批准号: 0118595
• 负责人: David Christie
• 金额: $ 19.55万
• 依托单位: Oregon State University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-10-01 至 2004-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0118595&HistoricalAwards=false
• 关键词: Synthesis; Geochemical; Results; Southeast; Indian

Over the last decade and during four separate field programs, the PI has collected a wide variety of basalt samples from the Southeast Indian Ridge (SEIR) between -80'E and -135'E. Overall, there are -2000 samples comprising -300 glass groups from 150 localities. The PI proposes to consolidate and synthesize these results and to interpret the explained observations, which include chemical variations related to regional depth variations of over 2 km. This is a very interesting area in terms of the observed variations in depth, ridge morphology and mantle domains. In addition to the synthesis, the PI requests some support to carry out analyses of trace elements in minerals and their melt inclusions using ELA-ICPMS (Excimer laser ablation inductively coupled plasma mass spectrometry).

在过去的十年中，在四个独立的实地项目中，PI 在 -80'E 和 -135'E 之间的东南印度洋中脊 (SEIR) 收集了各种玄武岩样本。总共有 -2000 个样本，包括来自 150 个地区的 -300 个玻璃组。 PI 建议巩固和综合这些结果，并解释所解释的观测结果，其中包括与超过 2 公里的区域深度变化相关的化学变化。就观察到的深度、脊形态和地幔域的变化而言，这是一个非常有趣的区域。除了合成之外，PI 还请求一些支持，以使用 ELA-ICPMS（准分子激光烧蚀电感耦合等离子体质谱法）对矿物及其熔体包裹体中的微量元素进行分析。