Early Cretaceous mafic dikes in the northern Qinling Orogenic Belt, central China: Implications for lithosphere delamination

Mafic dikes preserve a considerable amount of geological information about crustal evolution. Yanshanian granitoids and granitites are widespread in the southern margin of the North China Craton (NCC) and northern Qinling Orogenic Belt (NQOB), respectively. However, further study is required to resolve the many contrasting hypotheses relating to the mechanisms of petrogenesis and origins. The present study therefore reports on geochemical,...