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Cuaba Amphibolite

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...) Gaspar Hernandez serpentinites. The southern area of the complex is structurally simpler and consists of: (8) Cuaba amphibolites, mafic to felsic gneisses intruded by (9) the Rio Boba Intrusive Suite, gabbros, diorites, and ultramafic cumulates. We suggest that the Hicotea, Puerca Gorda, and El...
Journal Article
Published: 01 February 2013
Mineralogical Magazine (2013) 77 (1): 117–136.
... ( Hattori et al. , 2010 a ) are the dominant rocks in the southernmost unit of the RSJC and are described herein as the Cuaba Unit [these are described as the Cuaba Amphibolite in some earlier publications (e.g. Draper and Nagle, 1991 )]. Small amounts of ultra high pressure (UHP) garnet peridotite have...
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Image
Ternary diagram of atomic Cr 3+  –Fe 3+  –Al 3+  compositions. As in  Fig. ...
Published: 01 February 2013
F ig . 7. Ternary diagram of atomic Cr 3+ –Fe 3+ –Al 3+ compositions. As in Fig. 3 , the magnetite in the Cuaba samples is low in Cr and plots in the field of ‘mag rims’. The field for ferritchromite and its compositional trend was obtained from data and diagrams given by Barnes and Roeder
Image
Minor-element contents  vs. Mg # in Cr-spinel. Symbols are as in  Fig. 3 , ...
Published: 01 February 2013
in amphibolite-facies metamorphic rocks is based on data compiled by Barnes ( 2000 ) for Cr-spinel in metamorphosed komatiites (see text for discussion). Only those parts of the compositional space relevant to the Cuaba samples are shown. Chromium-spinel which has been metamorphosed under amphibolite-facies
Journal Article
Journal: GSA Bulletin
Published: 01 January 2010
GSA Bulletin (2010) 122 (1-2): 292–304.
... ( Fig. 2B ). The Cuaba Gneiss is made up of oceanic gabbros metamorphosed under amphibolite facies conditions ( Abbott et al., 2006 ). The Cuaba Gneiss contains retrograded eclogites, and lenses (100–500 m long) of serpentinites. Foliation wrapping around these lenses suggests that the serpentinites...
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Journal Article
Published: 01 November 2016
The Canadian Mineralogist (2016) 54 (6): 1437–1457.
...Richard N. Abbott, Jr. Abstract Modal-space illustrates changes in the volumes and compositions of minerals in a rock ( Thompson 1991 ), for example, in response to P - T -sensitive, high-variance reactions. The method is applied to retrograded eclogite (Pl + Cpx + Grt + Qz + Hbl + Ep) in the Cuaba...
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Journal Article
Journal: GSA Bulletin
Published: 16 September 2024
GSA Bulletin (2024)
... et al., 2006; Blanco-Quintero et al., 2010; Iturralde-Vinent et al., 2016). The HP amphibolite in ophiolitic mélange of eastern Cuba documents hot subduction of young oceanic crust, which is consistent with ridge subduction (García-Casco et al., 2008; Blanco-Quintero et al., 2010). Nevertheless...
Series: Geological Society, London, Special Publications
Published: 01 January 2009
DOI: 10.1144/SP328.2
EISBN: 9781862395763
..., the Cuaba amphibolites and the Rio Boba gabbroic layered sequences. the Samanà-Punta Balandra complex, consisting of a continuous sequence of foliated marbles with intercalations of micaschists, including boudins of metagabbros and metadolerites metamorphosed into blueschist and eclogite facies...
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Series: Geological Society, London, Special Publications
Published: 01 January 2009
DOI: 10.1144/SP328.3
EISBN: 9781862395763
... 1964 ). Garnet peridotite, normally associated with subducted continental rock, occurs in the Cuaba amphibolite of the Dominican Republic (Draper et al. 2002). Geophysical data indicate continental crustal thickness of about 30 km in the centre of Puerto Rico and 29 km below the Anegada Platform...
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