Nature of mantle source contributions and crystal differentiation in the petrogenesis of the 1.78 Ga mafic dykes in the central North China craton

• Published in: Gondwana research Vol. 12; no. 1; pp. 29 - 46
• Main Authors: Peng, Peng, Zhai, Ming-Guo, Guo, Jing-Hui, Kusky, Tim, Zhao, Tai-Ping
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.08.2007
• Subjects: Large Igneous Province; Late Palaeoproterozoic; Mafic dyke swarms; North China craton; Petrogenesis; Plume; Late Palaeoproterozoic; Large Igneous Province; Plume; North China craton; Mafic dyke swarms; Petrogenesis

Circa 1.78 Ga mafic dyke swarms and some coeval volcanic associations constitute a Large Igneous Province in the central North China craton. The 1st generation of dykes intruded at ca. 1780 Ma and is chemically delineated into 3 groups: the LT Group is gabbroic and has low-Fe–Ti contents, acting as...