Age and significance of early Archaean high-grade metamorphism in the Central Zone of the Limpopo Belt, South Africa, and its tectonic interpretation.

南非林波波带中带早期太古代高级变质作用的时代、意义及其构造解释.

• 批准号: 407402474
• 负责人: Dr. Yamirka Rojas-Agramonte, Ph.D., since 7/2019
• 金额: --
• 依托单位: Institut für Geowissenschaften
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2018
• 资助国家: 德国
• 起止时间: 2017-12-31 至 2022-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/407402474?language=en
• 关键词: Age; significance; early; Archaean; grade

Field investigations of an Archaean granulite-facies supracrustal assemblage on the farm Klein Bolayi and environs, Central Zone of the Limpopo Belt, South Africa, followed by zircon dating, petrological characterization as well as Hf-in-zircon isotopic characteristics with the aim to establish the age, petrogenesis, protolith identification and metamorphic evolution of these rocks The overall purpose is to elucidate the previously ill-defined ca. 3.2 Ga early Archaean metamorphic history of the Central Zone and its tectonic significance.

对南非林波波带中心区 Klein Bolayi 农场及其周边地区的太古宙麻粒岩相表壳组合进行实地调查，随后进行锆石定年、岩石学表征以及锆石中 Hf 同位素特征，旨在确定这些岩石的年龄、岩石成因、原岩鉴定和变质演化的总体目的是阐明以前不明确的约3.2 嘎中带太古宙早期变质历史及其构造意义。