Special Issue "Petrology, Geochemistry and Isotopes of Ophiolite and Granites in Kunlun Orogen and Adjacent Area"
Deadline for manuscript submissions: closed (31 July 2023) | Viewed by 12943
Interests: ophiolite; granites; geochemistry; tectonics
Interests: field geology; tectonics; structure geology; geochemistry
Interests: mineral; geological mapping; geochemistry
Interests: granites; geochemistry; structure geology
The Qinghai–Tibet Plateau is Earth’s broadest and highest collisional system. Kunlun Orogen, located in the northern margin of the Qinghai–Tibet Plateau, recorded its early oceanic–continental tectonic evolutionary history. In particular, it incorporated at least two major tectonic events, including the tectonic processes of the Proto-Tethys Ocean in the Early Paleozoic and the Paleo-Tethys Ocean in the Late Paleozoic–Early Mesozoic. These events also record a history of Gondwana dispersal and Laurasian accretion. Thus, Kunlun Orogen provides a natural laboratory for studying not only ophiolites and subduction/collisional-type granitoids but also the evolutionary details of the Proto- and Paleo-Tethys ocean in north Gondwana.
Ophiolitic mélanges commonly occur in the collisional and accretionary orogens and are considered to be the indicators of the paleo-oceanic basin. Recent work has suggested that ophiolites can be classified into subduction-unrelated types and subduction-related types. These distinct ophiolites can be used to study the evolutionary details of the Paleo Ocean. Furthermore, granites mostly cropping out in the convergent plate margin record the subduction processes of the oceanic lithosphere and the collisional history of plates. In addition, granites are a key object for studying continental crustal growth based on their geochemical and isotopic composition. Thus, the study of ophiolites, granites, and even their spatio-temporal relationships become more necessary for reconstructing the detailed tectonic history of the Proto- and Paleo-Tethys Ocean in north Gondwana. In recent years, although the general tectonic framework and evolution history of these oceans have been restored, some debate still continues, mainly including (1) when the Proto-Tethys Ocean closed; (2) when the Paleo-Tethys Ocean began to subduct; (3) when the Qiangtang terrane collided with the consolidated Kunlun–Qaidam terrane and then docked to the southern margin of Laurasia; (4) how the continental crust grew and what the crust growth mechanism is; and (5) the magmatic evolutionary processes of voluminous granitic magmatism in Kunlun and the adjacent area.
The Special Issue aims to publish the new whole-rock/mineral geochemical and geochronological data from the northern Tibetan Plateau (Kunlun Orogen). We invite original research papers, reviews, and other contributions that are relevant to this issue.
Dr. Ruibao Li
Prof. Dr. Xianzhi Pei
Prof. Dr. Zuochen Li
Dr. Lei Pei
Dr. Guochao Chen
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- ophiolitic mélange
- granitic magmatism
- geological evolution of Kunlun Orogen
- geochemical and isotope constraints
- Proto- and Paleo-Tethys Ocean