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

该项目的目标是：(i)开发地外宇宙成因10Be和53Mn作为一种方法，以获得从细粒沉积物（粘土泛沉积物；大气沉积的石膏粉尘）中提取的行星际尘埃颗粒（IDPs）和微陨石的地球年龄；（ii）开发和应用粗粒沉积物（泛沉积物中的卵石层）的10Be/ 21ne埋藏定年；（iii）开发宇宙成因21be和22Ne，以确定近地表盐（岩盐，NaCl）的产状。53Mn和10Be/ 21ne埋藏测年的可采年龄分别为~ 1 ~ 22ma和~ 0.5 ~ 10ma。21,22岁没有年龄上限。

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.