Subduction-controlled temporal and spatial variations in early Palaeozoic sedimentary and volcanic record of the Mongol-Altai Domain

Journal of Asian Earth Sciences(2022)

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摘要
•Western juvenile and eastern mature Ordovician arcs intruded the Altai wedge.•Late Ordovician–Silurian volcanic gaps were related to Altai wedge thickening.•An early Devonian back-arc formed in the western part of the Altai wedge.•Back-arc extension migrated to the east in the late Devonian.•This diachronous evolution resulted from lateral variations in subduction modes.
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关键词
Mongol-Altai Domain,Magmatic arc,Volcanic gap,Back-arc extension,Along-strike subduction variation,Central Asian Orogenic Belt
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