Lesser Antilles isotopic evidence of the role of subducted sediment in island arc magma genesis

Nature ◽  
1983 ◽  
Vol 306 (5940) ◽  
pp. 253-256 ◽  
Author(s):  
Jon P. Davidson
Keyword(s):  
Island Arc ◽  
Lesser Antilles ◽  
Magma Genesis ◽  
Isotopic Evidence ◽  
Arc Magma ◽  
Subducted Sediment

The geochemistry of marine sediments, island arc magma genesis, and crust-mantle recycling

1989 ◽  
Vol 94 (1-2) ◽  
pp. 1-21 ◽  
Author(s):  
Dalila Ben Othman ◽  
William M. White ◽  
Jonathan Patchett
Keyword(s):  
Marine Sediments ◽  
Island Arc ◽  
Magma Genesis ◽  
Arc Magma

scholarly journals Gold, platinum and palladium enrichments in arcs: role of mantle wedge, arc crust and halogen-rich slab fluids

2019 ◽  
Vol 98 ◽  
pp. 08010 ◽  
Author(s):  
Pavel Kepezhinskas ◽  
Nikita Kepezhinskas ◽  
Nikolai Berdnikov
Keyword(s):  
Large Scale ◽  
Mantle Wedge ◽  
Island Arc ◽  
Mantle Xenoliths ◽  
Magma Chambers ◽  
Pge Mineralization ◽  
Plumbing Systems ◽  
Arc Magma ◽  
Gold Platinum

Arc-related magmas are frequently enriched in Au, Pt and Pd in respect to MORB and OIB igneous suites. Magmatic arcs commonly host large-scale hydrothermal Au and Au-Cu and PGE mineralization related to young volcanic systems and zoned ultramafic complexes respectively. Island-arc mantle xenoliths show Au, Pt, Pd enrichments related to mantle wedge metasomatism by slab-derived fluids. Long-lived plumbing systems in arc crust (arc magma chambers) show further enhancement of Au, Pt and Pd enrichments through subduction-related metamorphic and metasomatic processes in the presence of halogen-rich, aqueous fluids. We propose that Au-Pt-Pd enrichments in arcs are caused by mantle wedge-slab interactions followed by differentiation and metamorphism of magmatic conduits in arc crust.

Magma genesis in the lesser Antilles island arc

1980 ◽  
Vol 51 (2) ◽  
pp. 297-308 ◽  
Author(s):  
C.J. Hawkesworth ◽  
M. Powell
Keyword(s):  
Island Arc ◽  
Lesser Antilles ◽  
Magma Genesis

THE ROLE OF SUBDUCTED SEDIMENT DIAPIRS IN THE FORMATION OF MANTLE-DERIVED ANDESITES FROM THE NORTHERN COLOMBIAN ANDES

2017 ◽  
Author(s):  
Carlos Errázuriz-Henao ◽  
◽  
Arturo Gómez-Tuena ◽  
Jose Fernando Duque-Trujillo
Keyword(s):  
Colombian Andes ◽  
Subducted Sediment

scholarly journals Ancient xenocrystic zircon in young volcanic rocks of the southern Lesser Antilles island arc

Lithos ◽  
2017 ◽  
Vol 290-291 ◽  
pp. 228-252 ◽  
Author(s):  
Yamirka Rojas-Agramonte ◽  
Ian S. Williams ◽  
Richard Arculus ◽  
Alfred Kröner ◽  
Antonio García-Casco ◽  
...  
Keyword(s):  
Volcanic Rocks ◽  
Island Arc ◽  
Lesser Antilles
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