Andean-type continental margin

Andean-type continental margin

[′an·dē·ən ‚tīp ‚känt·ən′ent·əl ′mär·jən]
(geology)
A continental margin, as along the Pacific coast of South America, where oceanic lithosphere descends beneath an adjacent continent producing andesitic continental margin volcanism.
References in periodicals archive ?
The Chilas Complex is a ~40 wide and 300 long composite plutonic body exposed in the central part of Kohistan island arc, which formed first as intra-oceanic island arc in the Neo-tethyan oceanic crust and later transformed into Andean-type continental margin after the closure of back-arc basin.
PETROLOGY OF THE CHILAS COMPLEX OF THE KOHISTAN ISLAND ARC IN THE KINER GAH AREA, CHILAS, PAKISTAN
The current tectonic setting of the region, i.e., the presence of a north dipping oceanic subduction zone, an active accretionary prism followed by a magmatic arc (Chagai-Raskh) comprising subduction-related magmatism reflect a straightforward Andean-type continental margin setting.
Petrogenesis of Plio-Pleistocene volcanic rocks from the Chagai arc, Balochistan, Pakistan
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