Geochemical constraints on the tectonic environment of the Late Paleoproterozoic mafic dyke swarms in the North China Craton
Late Paleoproterozoic mafic dyke swarms are widespread in the Shanxi Province in the Western Block and Central Orogenic Zone, and also in the Shandong Province of the Eastern Block of the North China Craton (NCC). Both of the mafic dyke swarms in Shandong and Shanxi plot mainly in the field of continental rift environment. The trace element spidergrams and the rare-earth element (REE) graphs of both mafic dyke swarms show similar geochemical features to data from the lavas (Xiong'er Group) in...[Show more]
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