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Omphacite from
Río San Juan Complex, Río San Juan, María Trinidad Sánchez Province, Dominican Republic


Locality type:Complex
Classification
Species:Omphacite
Formula:(NaaCabFec2+Mgd)(AleFef3+Feg2+Mgh)Si2O6
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Omphacite data
Locality Data:Click here to view Río San Juan Complex, Río San Juan, María Trinidad Sánchez Province, Dominican Republic
Data Identifiers
Mindat Occurrence Record ID:1270479
Long-form Identifier:1:3:1270479:2
GUID (UUID V4):9c428d2c-fe30-439d-ba30-55ec773e7a3b
References
Reference Search (possible matching items)
Report (chapter)
evaluation of local provenance from the Río San Juan Complex HANS-PETER SCHERTL1,2*, WALTER V. MARESCH1...Edificio Naco 2000, Suite 804, Santo Domingo, Dominican Republic 6 Universidad de Puerto Rico, Recinto de...Playa Grande on the northern coast of the Dominican Republic is particularly significant because it yielded...area of serpentinite mélanges in the nearby Río San Juan Complex (RSJC). A suite of nine artefacts was chosen...of pyroxenes rich in this component (as in the omphacite common in eclogite), called for high-pressure–low-temperature
Journal (article/letter/editorial)
the northern Caribbean subduction–accretionary complex: Insights from the structural geology, microtextures...Caribbean plate a b s t r a c t The Río San Juan metamorphic complex exposes a segment of a high-pressure...high-pressure subduction–accretionary complex built during convergence between the Caribbean island arc and the...the structural evolution. In all units of the complex, three major stages (M1 to M3) in the tectonothermal...metamorphism in the lower structural units of the complex during a consistent D2 top-to-the-NE/ENE tectonic
Journal (article/letter/editorial)
geochemistry and large-scale structure of the Río San Juan metamorphic complex Javier Escuder-Viruete a,⁎, Richard...Caribbean plate a b s t r a c t The Río San Juan metamorphic complex exposes a segment of a high-pressure...geochemical data show that the northern half of the complex is composed of arc- and oceanic-derived units,...exposed in the high-P mélanges of the northern Dominican Republic are exceedingly small. Nevertheless, the...the Jagua Clara mélange exposed in the Río San Juan complex has also attracted attention, due to excellent
Journal (article/letter/editorial)
com/locate/lithos Timing of deformational events in the Río San Juan complex: Implications for the tectonic controls...12 July 2013 Keywords: Subduction Accretionary complex High-pressure metamorphism U–Pb and 40Ar/39Ar geochronology...the exhumation of the high-P rocks of the Río San Juan complex in the northern Caribbean subduction–accretionary...ry wedge. In the main structural units of the complex, microtextural analyses were performed to identify...northern Caribbean subduction–accretionary prism (or complex; Fig. 1) represents an important natural laboratory
Journal (article/letter/editorial)
s Tectonometamorphic evolution of the Samaná complex, northern Hispaniola: Implications for the burial...paths Caribbean plate a b s t r a c t The Samaná complex exposes a segment of a high-P metasedimentary collisional...allow proposing a tectonothermal evolution of the complex involving three major stages (M1 to M3). M1 metamorphism...ENE-directed folding, thrusting and nappe stacking in the complex, when nappes went sequentially incorporated to...to a growing collisional accretionary complex between the Late Eocene and the earliest Miocene. D2 deformation
Journal (article/letter/editorial)
ultramafic complex in the Polar Urals (Russia) and the serpentinite mélanges of the Río San Juan complex (Dominican...(Dominican Republic). The data argue for formation of jadeitite within the mantle wedge during active subduction...371–372 (2013) 67–81 Magante Ridge, Río San Juan Complex, Dominican Republic, Schertl et al., 2012). Geochronological...in Guatemala by a tectonically and geologically complex region classically termed the Motagua Suture Zone...Polochic (Polochic– Chixoy; PFS), (b) the Motagua (San Agustín/Cabañas, Jubuco, Cuyamel; MFS), and (c) the
Journal (article/letter/editorial)
serpentinite mélange of the Rio San Juan Complex, Dominican Republic. The mélange represents a fossil...subduction channel of the Rio operation. CE San Juan intra-oceanic subduction zone at at 30 - 50 km...our study area of the Rio San Juan Complex (RSJC) of the Dominican Republic, where samples can be found...xenocrysts in an otherwise P-type rock. The Rio San Juan Complex of the present study in fact represents a...Guatemala through Cuba SC RI PT towards the Dominican Republic (García-Gasco et al., 2008). The jadeitites
Journal (article/letter/editorial)
serpentinite mélange of the Rio San Juan Complex (Dominican Republic) Andreas Hertwig1,2 · William C...serpentinite-matrix mélange in the northern Dominican Republic. In the concordant jadeitite layer, three...Zircon · Geochronology · Oxygen isotopes · Rio San Juan Complex * Andreas Hertwig andreas.hertwig@rub.de...Guatemala; Sierra del Convento, Cuba; Rio San Juan Complex, Dominican Republic), the CircumPacific region (e.g...processes necessary during metasomatic replacement are complex and hence unlikely to have taken place. Unequivocal
Journal (article/letter/editorial)
complexes crop out in the northern coast of the Dominican Republic (Abbott and Draper, RI PT 2013; Escuder-Viruete...late Jurassic-early Cretaceous subduction-related complex that contains diverse blocks of igneous or sedimentary...including parts of the Caribbean Large Igneous Province (CLIP). Therefore, the northern Chortis block...lower mélange includes the Santa Rosa accretionary complex built up of stacks of several oceanic MA tectonic...garnet- and clinopyroxene (aegirine-augite and rare omphacite)-rich domains, accompanied by ACCEPTED MANUSCRIPT
Journal (article/letter/editorial)
K)AlSiO4 — Ol Olivine (Mg,Fe)2 SiO4 — Omp Omphacite Ideally (CaNa)[(Mg,Fe)Al](Si2 O6 )2 Pyroxene...manner, the Rı́o San Juan complex jadeitites led to the sourcing of many Dominican Republic jades (Knippenberg...have been tracked to the Monviso metaophiolite complex, western Italian Alps, Italy (e.g., Compagnoni...Arroyo Sabana and Jagua Clara mélanges in the Dominican Republic (Draper et al. 1991, Schertl et al. 2012)...R Sierra del Convento, Cubac Rı́o San Juan complex, Dominican Republicd www.annualreviews.org • Jadeitites
Report (chapter)
phengite-bearing blueschists. A major ultramafic complex, composed of strongly serpentinized peridotite...serpentinized peridotite complex is pelitic, mafic and subordinate magnesian schists, the ‘Complex Crystalline Schists’...schist units and the serpentinized peridotite complex are probably tectonic, but the contacts are mostly...carbon inclusions, while dark green or opaque omphacite is due to its composition i.e. Jd36.4–63.6 Ae4...in the Tawmaw area: serpentinized peridotite; complex crystalline schists; Tertiary sandstones; Uru boulder
Journal (article/letter/editorial)
eclogite and associated metapelite from the Chuacús complex (Guatemala Suture Zone): constraints from phase...title: High-pressure evolution of the Chuacús complex Corresponding author mail id :- maldonadovr@gmail...lenses, abundant metapelitic rocks in the Chuacús complex (Guatemala Suture Zone) also preserve evidence...samples reveal that mafic precursors in the Chuacús complex originated in multiple tectono-temporal settings...continental margin of the North American plate (Chuacús complex) beneath the Greater Antilles arc occurred during
Journal (article/letter/editorial)
extrusion or in a plate boundary zone metamorphic core complex. Our study demonstrates that micro-analytical techniques...X IG – included in garnet, IO – included in omphacite, GB – at grain boundary. Mineral abbreviations...other clasts displayed no zoning within garnet, omphacite or rutile (Table A1). Garnet-clinopyroxene Fe–Mg...adjacent to garnet rim, GC – in garnet core, O – in omphacite, M – in matrix. TiO2 wt.% – measured by EMP. 91...and diapiric emplacement of a metamorphic core complex (Little et al., 2011). Such plate boundary conditions
 
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