scholarly journals Resolving Sediment Subduction and Crustal Contamination in the Lesser Antilles Island Arc: a Combined He–O–Sr Isotope Approach

2002 ◽  
Vol 43 (1) ◽  
pp. 143-170 ◽  
Author(s):  
MATTHIJS C. VAN SOEST ◽  
DAVID R. HILTON ◽  
COLIN G. MACPHERSON ◽  
DAVID P. MATTEY
Keyword(s):  
Crustal Contamination ◽  
Island Arc ◽  
Lesser Antilles ◽  
Sr Isotope

Nd and Sr isotope geochemistry of island arc volcanics, Grenada, Lesser Antilles

1979 ◽  
Vol 45 (2) ◽  
pp. 237-248 ◽  
Author(s):  
C.J. Hawkesworth ◽  
R.K. O'Nions ◽  
R.J. Arculus
Keyword(s):  
Isotope Geochemistry ◽  
Island Arc ◽  
Lesser Antilles ◽  
Sr Isotope

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

Anorthite megacrysts from island arc basalts

1995 ◽  
Vol 59 (394) ◽  
pp. 1-14 ◽  
Author(s):  
Mitsuyoshi Kimata ◽  
Norimasa Nishida ◽  
Masahiro Shimizu ◽  
Shizuo Saito ◽  
Tomoaki Matsui ◽  
...  
Keyword(s):  
Planetary Nebula ◽  
Isotope Ratio ◽  
Island Arc ◽  
Japanese Island ◽  
Sr Isotope ◽  
Native Copper ◽  
Chemical Zoning ◽  
Basaltic Magmas ◽  
End Members ◽  
Lateral Variations

AbstractAnorthite megacrysts are common in basalts from the Japanese Island Arc, and signally rare in other global fields. These anorthites are 1 to 3 cm in size and often contain several corroded Mg-olivine inclusions. The megacrysts generally range from An94Ab4Ot2 to An89Ab6Ot5 (Ot: other minor end-members, including CaFeSi3O8, CaMgSi3O8, AlAl3SiO8, □Si4O8) and show no chemical zoning. They often show parting. Redclouded megacrysts contain microcrystals of native copper with a distribution reminiscent of the shape of a planetary nebula. Hydrocarbons are also present, both in the anorthite megacrysts and in the olivines included within them. Implications of lateral variations in the Fe/Mg ratio of the included olivines, in Sr-content and in Sr-isotope ratio of the anorthite megacrysts with respect to the Japanese island arc, relate to mixing of crustal components and subducted slab-sediments into the basaltic magmas.

scholarly journals Temporal source evolution and crustal contamination at Lopevi Volcano, Vanuatu Island Arc

2013 ◽  
Vol 264 ◽  
pp. 72-84 ◽  
Author(s):  
Aurélien Beaumais ◽  
Gilles Chazot ◽  
Laure Dosso ◽  
Hervé Bertrand
Keyword(s):  
Crustal Contamination ◽  
Island Arc

scholarly journals A seismic refraction investigation of crustal structure beneath the Lesser Antilles island arc

1979 ◽  
Vol 58 (2) ◽  
pp. 371-393 ◽  
Author(s):  
C. H. Boynton ◽  
G. K. Westbrook ◽  
M. H. P. Bott ◽  
R. E. Long
Keyword(s):  
Crustal Structure ◽  
Seismic Refraction ◽  
Island Arc ◽  
Lesser Antilles
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