The relationship of sedimentary organic matter, oil-gas and sandstone-type uranium (U) deposits is the key problem U-mineralization. Whether migrate hydrocarbons participate in U-mineralization still a controversy. Typical U Erlian Basin northeast China have been investigated through detailed petrography, mineralogical, micro spectroscopic, geochemical C-isotope studies. Petrographic observatio...

Introduction: The preponderance of 3.9 Ga lunar impact-melt rock ages and the dearth of older samples of unequivocal impact origin, from either the Apollo collection or lunar meteorites, suggest an extraordinary bombardment event in the Earth-Moon system at ~3.9 Ga. We have begun to study another set of samples, impact melts and crystalline lunar spherules (CLS) within demonstrably old Apollo b...