Early-formed rare and unique meteorites and clasts in meteorite breccias (B05+)

陨石角砾中早期形成的稀有独特陨石和碎屑（B05）

• 批准号: 290760013
• 金额: --
• 依托单位: Institut für Geologische Wissenschaften
• 依托单位国家: 德国
• 项目类别: CRC/Transregios
• 财政年份: 2016
• 资助国家: 德国
• 起止时间: 2015-12-31 至 2022-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/290760013?language=en
• 关键词: Early; formed; rare; unique; meteorites

Within the framework of this project we identified volatile-rich clasts within meteorite breccias that differ from all meteoritic materials previously identified in studies of individual meteorites. This is especially the case for a new type of C1-clasts that differ significantly from Ivuna-like (CI1) chondritic matter. To better determine the role of these clasts in the early solar system and whether they represent planetary building blocks or components of late accretionary processes, the newly identified clast materials will be characterized isotopically (Cr, Ti, and N) and chemically (major- and trace-element bulk compositions, including noble gases). In addition, the existing sample set will be extended by searching for new unique types of meteorites and clasts in breccias.

在这个项目的框架内，我们确定了陨石角砾岩中富含挥发物的碎屑，这些碎屑不同于以前在单个陨石研究中确定的所有陨石材料。这是特别是一种新型的C1-碎屑，显着不同的象牙状（CI 1）变质物质的情况。为了更好地确定这些碎屑在早期太阳系中的作用，以及它们是否代表行星的组成部分或晚期吸积过程的组成部分，将对新发现的碎屑材料进行同位素（铬、钛和氮）和化学（主要和微量元素的整体组成，包括惰性气体）表征。此外，现有的样本集将通过寻找新的独特类型的陨石和角砾岩碎屑来扩展。