Ophiolites consist predominantly of mafic-ultramafic rocks but also contain in subordinate amounts intermediate to silicic intrusive–extrusive rocks in them.Th
The rare earth elements(REE) composition of the polymetallic crusts and nodules obtained from the South China Sea(SCS) were analyzed through inductively coupled
A large number of Mesozoic volcano-sedimentarybasins is distributed in southem Jilin Province, China, andfilled with a great set of coal-bearing strata. Accordi
Objective The Bayan Obo in the northern North China Craton is the world's largest REE-Nb-Fe deposit.The genesis of its hosted carbonatite is still controver