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• W4375948278 endingPage "121537" @default.
• W4375948278 startingPage "121537" @default.
• W4375948278 abstract "Continental intraplate basalts are widespread across Central-East Asia, and their melting mechanisms are poorly known. Herein, we present integrated studies of petrology, elemental-isotope systematics, and thermodynamic modeling of Cenozoic Liangcheng basalts, a representative volcanic field of the vast intracontinental basaltic magmatic province covering Central-East Asia, with the aim of constraining the source characteristics and melting dynamics in this intraplate setting. These basalts have moderate-to-low silica (45.2 to 49.0 wt%), high Fe2O3T (10.0 to 12.2 wt%), and alkali (Na2O + K2O, 4.27 to 7.38 wt%) contents with ocean-island basalt (OIB) -like trace-element patterns and moderately depleted to slightly enriched Sr–Nd–Pb–Hf isotopes (87Sr/86Sr = 0.703924–0.705176, 143Nd/144Nd = 0.512540–0.512861, 206Pb/204Pb = 17.2752–17.9180, 207Pb/204Pb = 15.4860–15.7383, 208Pb/204Pb = 37.6995–38.3599, and 176Hf/177Hf = 0.282852–0.282999). The major elements (e.g., high Fe/Mn, low CaO) and olivine chemistry (e.g., high Ni, Zn/Fe, and low Mn/Zn) favor derivation from a silica-deficient pyroxenite-bearing source, while the trace-element and isotope systematics suggest the involvement of recycled components including oceanic slab and sediment (both terrigenous and pelagic). A grid search with a thermodynamic melting model using incompatible trace elements was carried out to impose quantitative constraints on the mantle source. The modeling results show that the source of the Liangcheng basalt contains 80% primitive mantle peridotite and 20% silica-deficient pyroxenite. This exercise and geobarometric calculation using major elements suggest that melting occurs at a potential temperature of 1380 °C underneath a thinned continental lithosphere with a basal pressure of ∼2GPa, consistent with the source characteristics and melting conditions estimated for many other volcanic fields in the vast Central-East Asia magmatic province. By combining these results with the regional geology and tectonic history, we can suggest that these basalts were formed by decompression melting owing to mantle convection driven by lithospheric thickness variations (edge-driven convection). We suggest that such a melting scenario is ubiquitous beneath Central-East Asia and may have played a vital role in the formation of widespread intraplate continental alkaline basalts." @default.
• W4375948278 created "2023-05-10" @default.
• W4375948278 creator A5005963443 @default.
• W4375948278 creator A5018254126 @default.
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• W4375948278 creator A5076104832 @default.
• W4375948278 creator A5077604367 @default.
• W4375948278 date "2023-08-01" @default.
• W4375948278 modified "2023-10-14" @default.
• W4375948278 title "Generation of continental intraplate alkaline basalts by edge-driven convection: Insights from the Cenozoic basalts beyond the Big Mantle Wedge" @default.
• W4375948278 cites W1485043829 @default.
• W4375948278 cites W1556036204 @default.
• W4375948278 cites W1562200705 @default.
• W4375948278 cites W1578122124 @default.
• W4375948278 cites W1628732233 @default.
• W4375948278 cites W1656874552 @default.
• W4375948278 cites W1782373761 @default.
• W4375948278 cites W1828329906 @default.
• W4375948278 cites W1879999282 @default.
• W4375948278 cites W1910670615 @default.
• W4375948278 cites W1941456882 @default.
• W4375948278 cites W1969083472 @default.
• W4375948278 cites W1969859799 @default.
• W4375948278 cites W1969941166 @default.
• W4375948278 cites W1971410432 @default.
• W4375948278 cites W1972081858 @default.
• W4375948278 cites W1973156686 @default.
• W4375948278 cites W1974882281 @default.
• W4375948278 cites W1976788449 @default.
• W4375948278 cites W1981640918 @default.
• W4375948278 cites W1982093108 @default.
• W4375948278 cites W1992796522 @default.
• W4375948278 cites W1995278834 @default.
• W4375948278 cites W1997310688 @default.
• W4375948278 cites W1997737817 @default.
• W4375948278 cites W1998707404 @default.
• W4375948278 cites W2001181484 @default.
• W4375948278 cites W2002558280 @default.
• W4375948278 cites W2005018454 @default.
• W4375948278 cites W2005195754 @default.
• W4375948278 cites W2010432538 @default.
• W4375948278 cites W2011607179 @default.
• W4375948278 cites W2011613029 @default.
• W4375948278 cites W2012314264 @default.
• W4375948278 cites W2017755348 @default.
• W4375948278 cites W2020726550 @default.
• W4375948278 cites W2021145441 @default.
• W4375948278 cites W2022479480 @default.
• W4375948278 cites W2023419440 @default.
• W4375948278 cites W2029407151 @default.
• W4375948278 cites W2029533727 @default.
• W4375948278 cites W2030354688 @default.
• W4375948278 cites W2030540205 @default.
• W4375948278 cites W2031120397 @default.
• W4375948278 cites W2033096659 @default.
• W4375948278 cites W2035595872 @default.
• W4375948278 cites W2038325228 @default.
• W4375948278 cites W2039099919 @default.
• W4375948278 cites W2042340633 @default.
• W4375948278 cites W2043692481 @default.
• W4375948278 cites W2044032834 @default.
• W4375948278 cites W2047121008 @default.
• W4375948278 cites W2049038331 @default.
• W4375948278 cites W2050922461 @default.
• W4375948278 cites W2054661008 @default.
• W4375948278 cites W2055859870 @default.
• W4375948278 cites W2058977872 @default.
• W4375948278 cites W2059197455 @default.
• W4375948278 cites W2066735401 @default.
• W4375948278 cites W2067173167 @default.
• W4375948278 cites W2070751239 @default.
• W4375948278 cites W2072500940 @default.
• W4375948278 cites W2073681127 @default.
• W4375948278 cites W2074647551 @default.
• W4375948278 cites W2076258602 @default.
• W4375948278 cites W2076755830 @default.
• W4375948278 cites W2079645255 @default.
• W4375948278 cites W2082627141 @default.
• W4375948278 cites W2083048657 @default.
• W4375948278 cites W2083691178 @default.
• W4375948278 cites W2084285443 @default.
• W4375948278 cites W2084989998 @default.
• W4375948278 cites W2094663134 @default.
• W4375948278 cites W2101303966 @default.
• W4375948278 cites W2103507727 @default.
• W4375948278 cites W2111277048 @default.
• W4375948278 cites W2112648202 @default.
• W4375948278 cites W2113785517 @default.
• W4375948278 cites W2115622814 @default.
• W4375948278 cites W2115653418 @default.
• W4375948278 cites W2117683602 @default.
• W4375948278 cites W2121956656 @default.
• W4375948278 cites W2127888210 @default.
• W4375948278 cites W2138522501 @default.

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