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- W3191049546 endingPage "106318" @default.
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- W3191049546 abstract "The discovery of ultrahigh pressure (UHP) minerals in orogenic belts has revolutionized our understanding of subduction and the return flow of previously deeply subducted material to Earth's surface as part of the cycling and interaction of crustal and mantle systems. One class of UHP minerals is found as inclusions in orogenic peridotite-hosted podiform-chromite systems, within Phanerozoic ophiolites and ophiolitic mélanges. Such inclusions have opened a window into processes of recycling of crustal materials to the deep mantle and back through subduction and mantle convection in Phanerozoic orogens. Here, we document the first occurrence of an UHP mineral hosted in an ophiolitic podiform chromitite mélange from the Neoarchean paired metamorphic belt of the Central (Taihang) Orogenic Belt, Northern China. Numerous inclusions of rutile, apatite, dolomite, and amphibole are interpreted to be crustal-derived; they occur in podiform chromite grains hosted in a 2.6–2.5 Ga ophiolitic mélange now part of the North China Craton and formed by subduction of oceanic and continental material. Microstructures and phase relationships in a multi-phase inclusion of TiO2(II), rutile, apatite, and tremolite yield minimum P-T conditions of 7.5 GPa at 1000 °C, indicating that the crustal host, including carbonates, were subducted to depths > 270 km, transferred to the mantle of the overriding plate, and returned to the surface by 2.5 Ga. We suggest that slab rollback forced upward mantle flow, incorporating entities from the lower plate, perhaps in serpentinite diapirs, resulting in adiabatic melting that allowed crustal material to be trapped in chromite grains crystallizing in high-Mg melts. Contrasting bulk moduli and thermal contraction of the inclusions and host chromite protected the inclusions from P-induced back-reaction during exhumation. Together, these features show that the 1600 km long Central (Taihang) Orogenic Belt is emerging as the world’s first well-documented Phanerozoic style orogen, with classic tectonic zonation, ophiolitic mélanges, paired metamorphism, local evidence for UHP conditions, foreland basins, and late to post orogenic magmatism. Applying the null hypothesis, we explain this high degree of similarity by invoking the operation of Phanerozoic style plate tectonics, at least throughout the 1600 km length of the COB, and by geological comparison, in other similar aged geological terrains globally. From this we infer modern-style plate tectonics was operating in the Neoarchean." @default.
- W3191049546 created "2021-08-16" @default.
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- W3191049546 date "2021-08-01" @default.
- W3191049546 modified "2023-10-16" @default.
- W3191049546 title "Ultra-high pressure inclusion in Archean ophiolitic podiform chromitite in mélange block suggests deep subduction on early Earth" @default.
- W3191049546 cites W1565862946 @default.
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- W3191049546 cites W1611001904 @default.
- W3191049546 cites W1967082681 @default.
- W3191049546 cites W1979609748 @default.
- W3191049546 cites W1986424255 @default.
- W3191049546 cites W1987689478 @default.
- W3191049546 cites W1989445090 @default.
- W3191049546 cites W1999483583 @default.
- W3191049546 cites W2008784254 @default.
- W3191049546 cites W2028705646 @default.
- W3191049546 cites W2040422391 @default.
- W3191049546 cites W2042816588 @default.
- W3191049546 cites W2047161147 @default.
- W3191049546 cites W2051007052 @default.
- W3191049546 cites W2054153355 @default.
- W3191049546 cites W2066647800 @default.
- W3191049546 cites W2073257455 @default.
- W3191049546 cites W2085341666 @default.
- W3191049546 cites W2103294972 @default.
- W3191049546 cites W2107891851 @default.
- W3191049546 cites W2113397447 @default.
- W3191049546 cites W2113778426 @default.
- W3191049546 cites W2118521832 @default.
- W3191049546 cites W2120064643 @default.
- W3191049546 cites W2122950464 @default.
- W3191049546 cites W2127483220 @default.
- W3191049546 cites W2137177499 @default.
- W3191049546 cites W2139176560 @default.
- W3191049546 cites W2139480736 @default.
- W3191049546 cites W2139551431 @default.
- W3191049546 cites W2147423570 @default.
- W3191049546 cites W2149170714 @default.
- W3191049546 cites W2149768227 @default.
- W3191049546 cites W2153219120 @default.
- W3191049546 cites W2165447283 @default.
- W3191049546 cites W2317691790 @default.
- W3191049546 cites W2485291633 @default.
- W3191049546 cites W2507354539 @default.
- W3191049546 cites W2603736371 @default.
- W3191049546 cites W2756472912 @default.
- W3191049546 cites W2756933000 @default.
- W3191049546 cites W2765248296 @default.
- W3191049546 cites W2772521421 @default.
- W3191049546 cites W2789422422 @default.
- W3191049546 cites W2791039182 @default.
- W3191049546 cites W2792836901 @default.
- W3191049546 cites W2808439377 @default.
- W3191049546 cites W2811196043 @default.
- W3191049546 cites W2829883 @default.
- W3191049546 cites W2884702343 @default.
- W3191049546 cites W2894056432 @default.
- W3191049546 cites W2894980515 @default.
- W3191049546 cites W2900442813 @default.
- W3191049546 cites W2902549208 @default.
- W3191049546 cites W2903621849 @default.
- W3191049546 cites W2906915885 @default.
- W3191049546 cites W2921847592 @default.
- W3191049546 cites W2942494750 @default.
- W3191049546 cites W2945177562 @default.
- W3191049546 cites W2956682704 @default.
- W3191049546 cites W2965822114 @default.
- W3191049546 cites W2979741786 @default.
- W3191049546 cites W2986496965 @default.
- W3191049546 cites W3000415769 @default.
- W3191049546 cites W3011941490 @default.
- W3191049546 cites W3033845453 @default.
- W3191049546 cites W3037397450 @default.
- W3191049546 cites W3039742398 @default.
- W3191049546 cites W3044120668 @default.
- W3191049546 cites W3044747844 @default.
- W3191049546 cites W3097145227 @default.
- W3191049546 cites W3143076665 @default.
- W3191049546 cites W3157177844 @default.
- W3191049546 cites W3158661791 @default.
- W3191049546 cites W642264229 @default.
- W3191049546 doi "https://doi.org/10.1016/j.precamres.2021.106318" @default.
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