The absolute amounts and relative distributions of neutral nitrogen compounds in the Tabei oilfield (e. g. blocks Ln1-Ln1 1 ) showed remarkable migration fracti
The origin of Molar Tooth(MT)carbonates has been argued for more than 100 years, which are a kind of Proterozoic carbonates especially composed of microsparite
This paper determined the fixed-ammonium (NH+4) contents of lamprophyres in the Zhenyuan gold orefield, Yunnan Province, China. The results show that the NH+4 c