Subduction-controlled temporal and spatial variations in early Palaeozoic sedimentary and volcanic record of the Mongol-Altai Domain
Journal of Asian Earth Sciences(2022)
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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