The wide composition spectrum dike swarm (WSDS): Petrogenesis and its tectonic and metallogenic implications

This paper tries to review dike swarms less reported in the world and describe their tectonic and metallogenic implications, defining them as the wide spectrum dike swarms (WSDS). On such a basis, the authors have reached some conclusions:①the WSDS is a specific igneous suite, whose compositional diversity is induced mainly by its origin. Thus the WSDS differs from the other known igneous suites;②the WSDS's direct tectonic meaning is the lithosphere delamination;③Because the producing process of the WSDS needs the active involvement of the deep fluids, the WSDS is the targeting criterion in search for ore deposits;④the magma system is a complex dynamic system. Under the framework of ideal system, many signatures recognized from the WSDS are contradicted. However, these signatures can be integrated under the framework of the complex system;⑤the intraplate orogen is a specific type of orogen. The orogenesis can not be directly related to the tectonic force from the plate boundaries. WSDS applies equally to intraplate orogen and plate boundary orogen.