AbstractHydrothermal fluids are major agents for mass and heat transfer in the upper crust. Precise age dating and tracing of the origins of fluid fluxes can provide vital information on the geological past, yet detailed reconstructions of past hydroth…
AbstractWe present new U-Pb zircon ages, bulk rock chemistry, and field observations for volcanic and plutonic rocks of the Jurassic Bonanza arc of Vancouver Island, Canada, a proposed southern extension of the Talkeetna arc crustal section in Alaska. …
AbstractThe Chicxulub impact event at ca. 66 Ma left in its wake the only complex crater on Earth with a preserved peak ring, characterized by a well-developed magnetic anomaly low. To date, little is known about its magnetic properties. The joint Inte…
AbstractNephrite jade is of wide interest, not only for its value as a highly valued precious stone, but also for its significance in tracing geological and petrological processes. Here, we report the first discovery of a nephrite deposit in Africa, lo…
AbstractThe newly identified Neoproterozoic Yuanmou high-Nb mafic and adakitic rocks at the western margin of the Yangtze Block in South China are investigated for petrogenesis and geodynamic implications. Zircon U-Pb ages show the adakitic granodiorit…
AbstractThe East Kunlun orogenic belt in the northern Tibetan Plateau records a long-term accretionary and collisional history in the northeastern Proto-Tethys Ocean, which is important for reconstructing the paleogeography of early Paleozoic East Asia…
AbstractRegional heat flow provides a direct surface indication of the thermal state and energy balance of the lithosphere. Heat flux in the Tibetan Plateau remains poorly studied due to the lack of adequate information on heat flow. In this study, we …
AbstractThere is general agreement that a series of East Asian blocks has always lain outboard of both India and Australia along the North Indo–Australie peripheral orogen. However, whether the East Asian blocks were involved in the interior orogens of…
AbstractMafic dikes are generally emplaced in extensional tectonic settings and provide key information regarding deep mantle processes and sources. The Bangong-Nujiang suture zone was formed by the collision of the Qiangtang and Lhasa terranes and exp…
AbstractThe way in which intracontinental convergence caused by remote continent-continent collision has been accommodated remains debatable, but it is attributed to either pure shear thickening or continental subduction/underthrusting. Quantification …