Cosmogenic nuclides: dating of old continental sediments in arid environments (D01)

宇宙成因核素：干旱环境中古代大陆沉积物的年代测定（D01）

• 批准号: 318131537
• 金额: --
• 依托单位: Institut für Kernphysik
• 依托单位国家: 德国
• 项目类别: Collaborative Research Centres
• 财政年份: 2016
• 资助国家: 德国
• 起止时间: 2015-12-31 至 2019-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/318131537?language=en
• 关键词: Cosmogenic; nuclides; dating; old; continental

This projects targets are (i) Developing extraterrestrial cosmogenic 10Be and 53Mn as a method to obtain terrestrial ages of interplanetary dust particles (IDPs) and micrometeorites extracted from fine-grained sediments (clay pan-deposits; atmospherically deposited gypsum dust), (ii) Develop and apply 10Be/21Ne-burial dating of coarse grained sediments (pebble layers in pan-sediments) (iii) Develop cosmogenic 21,22Ne to date near-surface occurrences of halite (halite = rocksalt, NaCl). Expected recoverable ages for sediments are ~ 1 to 22 Ma and ~ 0.5 to 10 Ma, for 53Mn and 10Be/21Ne-burial dating, respectively. There are no upper age limits for 21,22Ne.

该项目的目标是：（i）开发地外宇宙成因的10 Be和53 Mn，作为获取从细粒沉积物中提取的行星际尘埃颗粒和微陨石的地球年龄的方法粘土泛沉积;大气沉积石膏尘），（ii）开发和应用粗颗粒沉积物的10 Be/21 Ne埋藏测年（泛沉积物中的卵石层）㈢开发宇宙成因的21，22 Ne迄今为止的近地表岩盐（岩盐=岩盐，氯化钠）。根据53 Mn和10 Be/21 Ne埋藏法测年，沉积物的可回收年龄分别为1 ~ 22 Ma和0.5 ~ 10 Ma。21，22 Ne没有年龄上限。