The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
The Junan granulite xenoliths and xenocrysts have a distinct overlap in U–Pb ages and Lu–Hf isotopic compositions with the Precambrian basement of the Yangtze craton. We thus believe that the Junan granulite cannot be derived from the North China lower crust. Moreover, broad deep seismic and magnetotelluric probing across the Sulu UHP terrane indicates the former is well coupled with the lower crust...
We report the occurrences of the remnants of a Meso-Tethyan oceanic plateau, encompassing an area of ~2×10 5 km 2 in central Tibet. The plateau remnants include large volumes of pillow basalt formed largely by emergent to subaerial eruption, minor ultramafic intrusives and cumulates, exotic blocks of limestone, radiolarian chert, graywacke, and shale. Isotopic and paleontological dating...
A paired metamorphic belt with ubiquitous migmatites and rare granulites in its high dT/dP part formed due to oceanic subduction in Chinese southwestern (SW) Tianshan. Although several geochronological studies have addressed it in recent years, the exact timing of the high-grade metamorphism and partial melting is still controversial. For this study, we selected nine samples obtained from three valleys...
The Shi-Hang Zone is an important NE–SW-trending Mesozoic magmatic belt in South China, which is dominated by granites with relatively high ε Nd (t) values and young T DM model ages. Here, we present laser ablation inductively coupled plasma mass spectrometry (LA–ICP-MS) zircon U–Pb ages, major and trace element compositions, and Sr–Nd–Hf isotope data for the Yuanzhuding porphyritic...
A petrological study was carried out for high pressure (HP) veins which cut through the host coesite-bearing eclogites at Habutengsu–Kebuerte in western Tianshan, China. The results place constraints on the origin and property of metamorphic fluids during subduction-zone metamorphism. Omphacite-, clinozoisite- and quartz-dominated veins occur on centimeter to meter scales within lens-shaped and layered...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.