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http://dx.doi.org/10.1093/nsr/nwaf309 | DOI Listing |
Sci Bull (Beijing)
August 2025
State Key Laboratory of Lithospheric and Environmental Coevolution, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China; College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing 100049, China.
The Moon's KREEP component-rich in potassium (K), rare earth elements (REE), and phosphorus (P)-is considered a critical heat source sustaining prolonged volcanic activity. However, Chang'e mission samples reveal a lack of KREEP signatures in the sources of mare basalt erupted ∼2.8 and 2.
View Article and Find Full Text PDFNatl Sci Rev
September 2025
State Key Laboratory of Lithospheric and Environmental Coevolution, Institute of Geology and Geophysics, Chinese Academy of Sciences, China.
Contrib Mineral Petrol
August 2025
School of Environment, Earth and Ecosystems, Faculty of Science, Technology, Engineering and Mathematics, The Open University, Walton Hall, Milton Keynes, MK6 6AA UK.
Unlabelled: The nature, location, longevity and pressure-temperature conditions of different crustal melt reactions during orogenesis provide constraints on the structure, mechanical strength and exhumation of orogenic middle crust as well as element mobilisation and crustal differentiation. The Himalayan orogen offers a natural laboratory for studying crustal melting by exposing both migmatites and leucogranites in its structurally highest levels. We combine previous frameworks that link petrography or bulk geochemistry to melt reaction with in-situ trace-element analyses of large-ion lithophile elements in feldspar, mica, and garnet, U-Th-Pb isotopes in monazite and zircon and thermometry calculations in samples from the Badrinath region of the Garhwal Himalaya.
View Article and Find Full Text PDFSci Rep
May 2025
Department of Geology, Northwest University, Xi'an, 710069, China.
The Middle Jurassic to Late Cretaceous interval marks a pivotal geological timeframe, encompassing both the progressive amalgamation of the Lhasa and Qiangtang Blocks and the terminal closure of the Bangong-Nujiang Tethyan Ocean. Investigating the closure evolution of the Bangong-Nujiang Tethyan Ocean during the Middle Jurassic to Late Cretaceous period will significantly enhance our understanding of the broader tectonic dynamics within the Global Tethys Domain. To elucidate the subduction polarity and timing of the closure of the Bangong-Nujiang Tethyan Ocean during this critical period, this study builds upon previous investigations of magmatic activity, stratigraphic sedimentary features, and paleomagnetic data.
View Article and Find Full Text PDFNature
May 2025
Department of Oceanography, School of Ocean and Earth Science and Technology, University of Hawai'i at Mānoa, Honolulu, HI, USA.
Volcanic hotspots are thought to form by melting in an upwelling mantle plume head followed by melting of the plume tail. Plate motion then generates an age-progressive volcanic track originating from a large igneous province to a currently active hotspot. The most voluminous large igneous province, the approximately 120-million-year-old Ontong Java Nui Plateau (OJP-Nui) in the mid-Pacific, however, lacks an obvious volcanic track.
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