The attempt of this work is to use LAMMA, a newly developed modern micro-beam analytical technique, to determin the lead isotopic composition of some grains pic
The frequenec and geographical distribution of ancient meteorite falling in China have been investigated based on historic record since more than 2000 years ago
Urea- adduct paper chromatography has been applied in organic geochemistry for separating branched/cyclic hydrocarbons from n-alkanes in sedimentary rocks and o