👁 Image
| Lázaro, C., Blanco-Quintero, I.F., Marchesi, C., Bosch, D., Rojas-Agramonte, Y., García-Casco, A. (2011) The imprint of subduction fluids on subducted MORB-derived melts (Sierra del Convento Mélange, Cuba) Lithos, 126 (3) 341-354 doi:10.1016/j.lithos.2011.07.011 | Journal (article/letter/editorial) | | on subducted MORB-derived melts
(Sierra del Convento Mélange, Cuba)
C. Lázaro a,⁎, I.F. Blanco-Quintero...isotope data for muscovite (Ms)-bearing amphibolite
blocks and associated muscovite-bearing trondhjemite...trondhjemite and quartz-muscovite rocks from the Sierra del
Convento mélange (eastern Cuba) indicate that Proto-Caribbean...the Ms-free tonalites–trondhjemites from Sierra del Convento, that are interpreted as primary
slab melts...idea that partial melting processes in the Sierra del Convento
subduction channel were triggered by the | 👁 Image
| Blanco-Quintero, I.F., Rojas-Agramonte, Y., García-Casco, A., Kröner, A., Mertz, D.F., Lázaro, C., Blanco-Moreno, J., Renne, P.R. (2011) Timing of subduction and exhumation in a subduction channel: Evidence from slab melts from La Corea Mélange (eastern Cuba) Lithos, 127 (1) 86-100 doi:10.1016/j.lithos.2011.08.009 | Journal (article/letter/editorial) | | Evidence from slab
melts from La Corea Mélange (eastern Cuba)
I.F. Blanco-Quintero a,⁎, Y. Rojas-Agramonte b...Minero-Metalúrgico, Las Coloradas s/n, 83329-Moa, Cuba
e
Berkeley Geochronology Center, 2455 Ridge Road...the La Corea serpentinite-matrix mélange (eastern Cuba) as centimeter- to
meter-sized blocks and as concordant...2008a; Lázaro et al., 2009). In eastern
Cuba, the Sierra del Convento and the La Corea mélanges (Fig. 1b)...provided a comprehensive P–T–t path for the Sierra del Convento mélange. The data presented by Lázaro et | 👁 Image
| Blanco-Quintero, Idael Francisco, Lázaro, C., García-Casco, A., Proenza, J. A., Rojas-Agramonte, Y. (2011) Barium-rich fluids and melts in a subduction environment (La Corea and Sierra del Convento mélanges, eastern Cuba) Contributions to Mineralogy and Petrology, 162 (2) 395-413 doi:10.1007/s00410-010-0603-2 | Journal (article/letter/editorial) | | subduction environment
(La Corea and Sierra del Convento mélanges, eastern Cuba)
Idael Francisco Blanco-Quintero...Springer-Verlag 2010
Abstract Whole-rock compositions of muscovite-bearing amphibolite, trondhjemite, pegmatite and...quartzmuscovite rocks from Sierra del Convento and La Corea
mélanges (eastern Cuba), as well as mineralogy...Trondhjemite Phengite
Subduction channel Eastern Cuba Caribbean plate
Introduction
Communicated by...mélanges occurring in eastern Cuba (La Corea and Sierra del Convento) show
abundant evidence for fluid | 👁 Image
| | Journal (article/letter/editorial) | | slab melts and their residues
(Sierra del Convento mélange, eastern Cuba)
Concepción Lázaro ⁎, Antonio...low-K trondhjemitic rocks from the Sierra del Convento mélange (Cuba) indicate
that oceanic crust underwent...high pressure. Indeed, trondhjemites from Sierra del
Convento have some of the geochemical features of...and Sr/Y. However, the trondhjemites from Sierra del Convento are more
comparable to acid rocks from Catalina...end, we use the example of the
Sierra del Convento mélange (eastern Cuba), where partial melting of
a subducting | 👁 Image
| | Journal (article/letter/editorial) | | paragonite in trondhjemites from the Sierra del Convento mélange, Cuba*
ANTONIO GARCÍA-CASCO†
Departamento...sn, 18002 Granada, Spain
ABSTRACT
In the Sierra del Convento mélange peraluminous trondhjemitic-tonalitic...discovered in the subduction-related Sierra del Convento mélange in eastern Cuba
(García-Casco 2005). The mélange...during subduction.
GEOLOGIC SETTING
The Sierra del Convento mélange represents an oceanic
subduction...inferred
from the behavior of the paragonite-muscovite and paragonitemargarite binary phase relations | 👁 Image
| Cárdenas-Párraga, Juan, García-Casco, Antonio, Harlow, George E., Blanco-Quintero, Idael Francisco, Agramonte, Yamirka Rojas, Kröner, Alfred (2012) Hydrothermal origin and age of jadeitites from Sierra del Convento Mélange (Eastern Cuba) European Journal of Mineralogy, 24 (2) 313-331 doi:10.1127/0935-1221/2012/0024-2171 | Journal (article/letter/editorial) | | origin and age of jadeitites from Sierra del Convento Mélange
(Eastern Cuba)
JUAN CÁRDENAS-PÁRRAGA1,*,...Abstract: Jadeitite (jadeite jade) from Sierra del Convento (eastern Cuba) occurs in a subduction-related serpentinite-matrix...high-temperature, Eastern Cuba, Caribbean.
1. Introduction
localities occur in the Sierra del Convento mélange
(Garcı́a-Casco...(Garcı́a-Casco et al., 2009) in Cuba, Sorkhan, Iran
(Oberhänsli et al., 2007) and Rı́o San Juan mélange...Maresch et al.,
2008).
In the Sierra del Convento mélange, eastern Cuba (Fig. 1b,
c) tectonic blocks | 👁 Image
| | Journal (article/letter/editorial) | | variably coarser (grains ≤ 1 cm) tan phengitic muscovite with rare appearance
of any foliation. These two...massive and often contains
conspicuous phengitic muscovite or lawsonite crystals, commonly with inclusions...Manzanal (grouping with brown symbols in Figure 1), Sierra de Las Minas (blue
symbols), La Palmilla (a major...particularly from the W. Jadeitites and a few from Sierra de Las Minas with REE approaching or
exceeding...types in this study. The signature of phengitic muscovite is
the moderate MgO (1.6 – 4.8 wt.%) and somewhat | 👁 Image
| | Journal (article/letter/editorial) | |
Lawsonite
CaAl2 Si2 O7 (OH)2 •H2 O
—
Ms
Muscovite
KAl(AlSi3 O10 )(OH)2
Mica group
Ne
Nepheline...Phengite
KAl2 (AlSi3 O10 )(OH)2
A varietal of muscovite, formed at high pressure, in
which there is a...in eastern Cuba eventually spurred the recognition of the jadeitites of Sierra del Convento
(Garcı́a-Casco...occurrences: for example, the Baja Verapaz and Sierra de Santa Cruz
ultramafics (ophiolitic) north of...Moa-Barracoa ophiolite north of the Sierra del Convento
mélange in eastern Cuba (Garcı́a-Casco et al. 2009) | 👁 Image
| | Journal (article/letter/editorial) | | mélange is distributed in the Caribbean (Guatemala, Cuba, and Dominican Republic),
circum-Pacific (Japan...South of Motagua fault,
Guatemala
3. Sierra del Convento, Cuba
Locality
Jadeitite
Table 1. Summary...125–113 Ma (Harlow et al., 2004).
2.3. Sierra del Convento, Cuba
2.2. South of Motagua fault, Guatemala...jadeitite locality has been reported from
eastern Cuba (Garcı́a-Casco et al., 2009; Cárdenas-Párraga...c gneiss. The garnet amphibolite of the
Sierra del Convento mélange yields a peak P-T condition
of 1 | 👁 Image
| | Report (article/chapter) | | implications from structural and geochronological data of Cuba
K. P. STANEK1*, W. V. MARESCH2 & J. L. PINDELL3...n. Magmatism ceased at least in
onshore central Cuba at about 75 Ma, probably as the southern edge of...metamorphism of high-pressure metamorphic rocks in Cuba cluster at 70 Ma; rapid uplift/
exhumation of these...Bahamas Platform along the Eocene suture zone in Cuba.
Between the arc’s interaction with Yucatán and...Caribbean. Although magmatism ceased in central Cuba by 75 Ma,
traces of continuing Early Palaeogene | 👁 Image
| CHAPMAN, A. D., LUFFI, P. I., SALEEBY, J. B., PETERSEN, S. (2011) Metamorphic evolution, partial melting and rapid exhumation above an ancient flat slab: insights from the San Emigdio Schist, southern California. Journal of Metamorphic Geology, 29 (6) 601-626 doi:10.1111/j.1525-1314.2011.00932.x | Journal (article/letter/editorial) | | and Sierra de Salinas schists of southern
California were underplated beneath the southern Sierra Nevada...temperatures and partial
melting in San Emigdio and Sierra de Salinas schists, inverted metamorphism in the...high-temperature Pelona, Orocopia, Rand, San Emigdio and Sierra de Salinas schist (collectively referred to
as...schist was underplated directly beneath the southern Sierra Nevada
batholith (SNB) and the once contiguous...conjugate massif to the
Shatsky Rise, a large igneous province (LIP) 2000 km
south-east of Japan (Saleeby, 2003; | 👁 Image
| Flores, Kennet E., Martens, Uwe C., Harlow, George E., Brueckner, Hannes K., Pearson, Norman J. (2013) Jadeitite formed during subduction: In situ zircon geochronology constraints from two different tectonic events within the Guatemala Suture Zone. Earth and Planetary Science Letters, 371. 67-81 doi:10.1016/j.epsl.2013.04.015 | Journal (article/letter/editorial) | | et al., 2012). Abbreviations for the main units: Sierra de Santa Cruz ophiolite (SSC), Baja Verapaz ophiolite...Mon—monazite, Ms—Muscovite, Ne—nepheline, Omp—omphacite, Pg—paragonite, Ph—
phengitic muscovite, Phl—phlogopite...a gray-tan, coarse-grained (≤5 mm) phengitic
muscovite rock with minor Ab, Zo and Zrn. Secondary talc...Juan Complex,
Dominican
Republic
Sierra del Convento
Mélange, Cuba
PT conditions
Key references
(a)...hosting mélange. Jadeitite from Sierra del
Convento in eastern Cuba is an example: the 108−107 Ma U–Pb | 👁 Image
| | Journal (article/letter/editorial) | | 1988).
Earlier workers reported K–Ar ages of muscovite at 85–
72 Ma (Miller et al., 1963), 81–60 Ma (Ueda...Ma (Hattori and Shibata, 1982). Rb–Sr
age of muscovite was reported at 92 Ma (Hayase and
Ishizaka, 1967)...the boulders shows a zonation with albitite and muscovite rock and was studied in
detail by Shigeno et al...equigranular texture with the assemblage of jadeite + muscovite +
paragonite + phlogopite + albite ± analcime...shows a remarkable
zoning with albitite (KH) and muscovite rock (KG in Fig.
6A). The albitite KH is a 20 | 👁 Image
| Hastie, Alan R., Mitchell, Simon F., Treloar, Peter J., Kerr, Andrew C., Neill, Iain, Barfod, Dan N. (2013) Geochemical components in a Cretaceous island arc: The Th/La–(Ce/Ce*)Nd diagram and implications for subduction initiation in the inter-American region. Lithos, 162. 57-69 doi:10.1016/j.lithos.2012.12.001 | Journal (article/letter/editorial) | | to the east to form the Greater Antilles islands (Cuba, Jamaica,
Hispaniola, Puerto Rico and the Virgin...Albian–Coniacian
Quibiján and Téneme Formations, Cuba (Groups 3T and 3Q1 — Marchesi et al.,
2007); (6)...determination of 118.2 ± 0.6 Ma for an eclogite from
Cuba. Pindell et al. (2011) used the numerical simulations...(2011) suggested that subduction initiation in
the Cuba region would have occurred prior to ~ 130 Ma. Similarly...on
modelled P–T–t paths in the Sierra del Convento mélange, Eastern
Cuba.
Many of the P–T–t paths are based | 👁 Image
| | Report (article/chapter) | | described
jadeitite from the Sierra del Convento region of eastern Cuba. Maresch et al. (2012) presented...possible occurrence in the Escambray area
of central Cuba, briefly mentioned by Millán &
Somin (1981). The...might have come from more distant sources such
as Cuba or Guatemala (Harlow 1994; Seitz et al.
2001; Harlow...Motagua and Cuba. The red line indicates the ideal
Tschermak substitution leading from muscovite to
phengite...from the potential source area of the Sierra del Convento in Cuba (García-Casco et al. 2009; CárdenasPárraga | 👁 Image
| Angiboust, Samuel, Hyppolito, Thais, Glodny, Johannes, Cambeses, Aitor, Garcia-Casco, Antonio, Calderón, Mauricio, Juliani, Caetano (2017) Hot subduction in the middle Jurassic and partial melting of oceanic crust in Chilean Patagonia. Gondwana Research, 42. 104-125 doi:10.1016/j.gr.2016.10.007 | Journal (article/letter/editorial) | | g.
Catalina Schists: Sorensen and Barton, 1987; Cuba mélanges: Garcia-Casco et al.,
2008, Lazaro and...580-690°C and 0.5-0.6 GPa. A
K-Ar analysis of muscovite yielded an age of 122 ± 4.6 Ma for a garnet mica...shown in Figure 6d contains
albite, titanite, muscovite and chlorite. The size, presence of low-angle...and 7c).
AC
Zoned white mica crystals exhibit muscovite cores rich in Ti and Na, in
contrast to phengite-rich...mixture of 10-20 µm
crystals of epidote, albite, muscovite and quartz with locally large porphyblasts of | 👁 Image
| Pujol-Solà, Núria, Proenza, Joaquín, Garcia-Casco, Antonio, González-Jiménez, José, Andreazini, Aleu, Melgarejo, Joan, Gervilla, Fernando (2018) An Alternative Scenario on the Origin of Ultra-High Pressure (UHP) and Super-Reduced (SuR) Minerals in Ophiolitic Chromitites: A Case Study from the Mercedita Deposit (Eastern Cuba). Minerals, 8 (10). 433 doi:10.3390/min8100433 | Journal (article/letter/editorial) | | A Case Study from the
Mercedita Deposit (Eastern Cuba)
Núria Pujol-Solà 1, *, Joaquín A. Proenza 1 , Antonio...super-reducing conditions;
chromitites; ophiolites; Cuba
Minerals 2018, 8, 433; doi:10.3390/min8100433
...from the Mercedita chromitite deposit, in eastern Cuba. This mineral assemblage, which occurs
with con...Mercedita chromitite deposit is located in eastern Cuba (Figure 1a), part of the Mayarí-Baracoa
ophiolitic...serpentinite-matrix subduction mélanges (Sierra
del Convento and La Corea), Early to Late Cretaceous volcanic | 👁 Image
| | Journal (article/letter/editorial) | | Superior Politécnico J.A. Echeverría, La Habana, Cuba
c
Rice University
Published online: 06 Aug 2010...Superior Politécnico J.A. Echeverría, La Habana, Cuba
AND JAMES PINDELL
Tectonic Analysis Ltd., Duncton...UNITS OCCUR onshore and offshore
Yucatan Peninsula, Cuba, Dominican Republic,
Puerto Rico, and the Virgin...northern-central Cuba) and the Maya Block (Los
Órganos and Rosario belts of western Cuba). However, other...Cretaceous (e.g, Escambray and Samaná terranes of Cuba
and Hispaniola, respectively). Explaining such
a | 👁 Image
| Shi, Guanghai, Harlow, George E., Wang, Jing, Wang, Jun, Enoch, N.G., Wang, Xia, Cao, Shu Min, Enyuancui, W. (2012) Mineralogy of jadeitite and related rocks from Myanmar: a review with new data. European Journal of Mineralogy, 24 (2) 345-370 doi:10.1127/0935-1221/2012/0024-2190 | Journal (article/letter/editorial) | | shiguanghai@263.net.cn; shigh@cugb.edu.cn
3
Guangdong Province Material Testing Center, Guangzhou 510080, PR...western Alps, Compagnoni et al.
(2007); the Sierra del Convento, Cuba, Garcia-Casco et al.
(2009); and the Nishisonogi...Other jadeitite, notably that from Sierra
del Convento in eastern Cuba (Garcia-Casco et al., 2009;
Cárdenas-Párraga...recently reported localities,
such as Iran, Italy, Cuba, and the Dominican Republic
(e.g., Oberhänsli et...Tremolite
-actinolite
Phlogopite
Biotite
Paragonite
Muscovite-phengite
Preiswerkite
Talc
Chlorite
Analcime
Natrolite | 👁 Image
| Torró, L., Garcia-Casco, A., Proenza, J.A., Blanco-Quintero, I.F., Gutiérrez-Alonso, G., Lewis, J.F. (2016) High-pressure greenschist to blueschist facies transition in the Maimón Formation (Dominican Republic) suggests mid-Cretaceous subduction of the Early Cretaceous Caribbean arc. Lithos, 266. 309-331 doi:10.1016/j.lithos.2016.10.026 | Journal (article/letter/editorial) | | HP-LT
metamorphic complexes have been studied in Cuba (e.g., Blanco-Quintero et al., 2010; Boiteau et...Antillean complexes are dated as Cretaceous. In Cuba,
serpentinite-matrix mélanges record subduction...complexes onto continental margins in Guatemala, Cuba, Hispaniola and Puerto Rico
(Garcia-Casco et al...metamorphic parageneses are formed mostly by
chlorite, muscovite (s.l.; phengite s.s., see below), epidote, amphibole...fabrics defined by
10
ACCEPTED MANUSCRIPT
muscovite, muscovite-chlorite intergrowths, amphibole and a crenulation | 👁 Image
| Shi, Guanghai, Lei, Weiyan, He, Huaiyu, Ng, Yi Nok, Liu, Yan, Liu, Yingxin, Yuan, Ye, Kang, Zhijuan, Xie, Gen (2014) Superimposed tectono-metamorphic episodes of Jurassic and Eocene age in the jadeite uplift, Myanmar, as revealed by 40Ar/39Ar dating. Gondwana Research, 26 (2) 464-474 doi:10.1016/j.gr.2013.08.007 | Journal (article/letter/editorial) | | 40
Ar/39Ar geochronology
Glaucophane
Phengitic muscovite
Myanmar jadeite
a b s t r a c t
The Myanmar jadeite...glaucophanebearing quartz-schist and phengitic muscovite-bearing quartz-schists
that may have correlation...phengitic
muscovite-bearing glaucophane-schist, stilpnomelane-bearing quartzite, phengitic muscovite-bearing...2012). Three fresh samples, two of phengitic muscovite-bearing
quartz-schist (A7 and A9) from site 1...outside the Hparkan–Tammaw mélange.
The phengitic muscovite-bearing quartz-schist (sample nos. A4 and
A9) | 👁 Image
| Stanek, Klaus P., Maresch, Walter V., Scherer, Erik, Krebs, Martin, Berndt, Jasper, Sergeev, Sergey S., Rodionov, Nikolay, Pfänder, Jörg, Hames, Willis E. (2019) Born in the Pacific and raised in the Caribbean: construction of the Escambray nappe stack, central Cuba. A review. European Journal of Mineralogy, 31 (1) 5-34 doi:10.1127/ejm/2019/0031-2795 | Journal (article/letter/editorial) | | construction of the
Escambray nappe stack, central Cuba. A review
Klaus P. STANEK1,*, Walter V. MARESCH2... USA
Abstract: The Escambray Massif of central Cuba is the largest metamorphic complex exposed in the...metamorphism; Lu–Hf, U–Pb
and Ar–Ar geochronology; Cuba.
1. Introduction
1.1. Regional setting of subduction-related... but collisional features are best
preserved on Cuba.
The subduction-related metamorphic rocks shown...central Cuba:
a case study
The nappe stack exposed in the Escambray Mountains
(Fig. 1b) of Cuba represents | 👁 Image
| | Journal (article/letter/editorial) | | pillow-breccias with a metahyaloclastitic matrix formed by
muscovite – paragonite – margarite – garnet – chlorite –...size and includes
three different mica phases: muscovite, paragonite and margarite, according to
decreasing...decreasing order of abundance in X-ray maps. Muscovite and paragonite define the
main foliation, along with...shown in Fig. 8.
A first generation of phengitic muscovite appears in Mg-rich core domains,
probably developed...metamorphic baric peak, while a second less
phengitic muscovite appears in rim domains formed during exhumation | 👁 Image
| | Report (issue) | | is as old as Jurassic in Cuba and as young as Holocene in many areas. In Cuba,
Early Cretaceous sedimentary...debris are not present until the
Late Cretaceous in Cuba, as well as in Jamaica and Puerto Rico.
In contrast...that contain lignite, which are only present in
Cuba and on Hispaniola, generally are of Miocene age...the region.
The geology shown on sheet 1 covers Cuba, the island of
Hispaniola, which includes Haiti...represent multiple, distinct geologic features. Only in Cuba
are there unquestioned Jurassic-age, and perhaps | 👁 Image
| Harlow, George E., Summerhayes, Glenn R., Davies, Hugh L., Matisoo-Smith, Lisa (2012) jade gouge from Emirau Island, Papua New Guinea (Early Lapita context, 3300 BP): a unique jadeitite. European Journal of Mineralogy, 24 (2) 391-399 doi:10.1127/0935-1221/2012/0024-2175 | Journal (article/letter/editorial) | | sources moving
over recent time from Guatemala to Cuba and Hispaniola
(Garcı́a-Casco et al., 2009, Schertl...Islands, Sepik valley and Torare River.
Ireland Province, Papua New Guinea (Fig. 1), a small green
stone...compositions are near end-member with only
8 % maximum muscovite and ,3 % calcium brittle mica
(but the latter...mostly
in older literature, near Jayapura, Papua province,
Indonesia, does merit close scrutiny. Chloromelanite...Bay (Toluk Yotefa),
east Irian Jaya (now Papua province of Indonesia) in
1903. His expedition followed |
|
