👁 Image
| Lázaro, Concepción, Blanco-Quintero, Idael F., Proenza, Joaquin A., Rojas-Agramonte, Yamirka, Neubauer, Franz, Núñez-Cambra, Kenya, Garcia-Casco, Antonio (2016) Petrogenesis and 40Ar/39Ar dating of proto-forearc crust in the Early Cretaceous Caribbean arc: The La Tinta mélange (eastern Cuba) and its easterly correlation in Hispaniola. International Geology Review, 58 (8) 1020-1040 doi:10.1080/00206814.2015.1118647 | Journal (article/letter/editorial) | | Cretaceous Caribbean arc: The
La Tinta mélange (eastern Cuba) and its easterly
correlation in Hispaniola
Concepción...Cretaceous Caribbean arc:
The La Tinta mélange (eastern Cuba) and its easterly correlation in Hispaniola, International...Cretaceous
Caribbean arc: The La Tinta mélange (eastern Cuba) and its easterly correlation
in Hispaniola
Concepción...gInstituto de
Geología y Paleontología, Ciudad Habana, Cuba; hInstituto Andaluz de Ciencias de la Tierra, CSIC-Universidad...ultramafic mélange sheet that crops out in eastern Cuba. It is
composed of dolerite-derived amphibolite | 👁 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...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...(California) and the Sierra del Convento and La Corea serpentinitic
mélanges (eastern Cuba), have partial melting | 👁 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
| Lázaro, C., García-Casco, A., Blanco-Quintero, I.F., Rojas-Agramonte, Y., Corsini, M., Proenza, J.A. (2015) Did the Turonian–Coniacian plume pulse trigger subduction initiation in the Northern Caribbean? Constraints from 40Ar/39Ar dating of the Moa-Baracoa metamorphic sole (eastern Cuba) International Geology Review, 57 (5) 919-942 doi:10.1080/00206814.2014.924037 | Journal (article/letter/editorial) | | dating of the Moa-Baracoa
metamorphic sole (eastern Cuba)
a
ab
ac
de
f
C. Lázaro , A. García-Casco ...dating of the Moa-Baracoa metamorphic sole (eastern Cuba), International Geology Review, DOI:
10.1080/00206814...dating of the Moa-Baracoa metamorphic sole
(eastern Cuba)
C. Lázaroa*, A. García-Cascoa,b, I.F. Blanco-Quinteroa...metamorphic sole, below the Moa-Baracoa ophiolite (eastern Cuba), contains strongly deformed
amphibolites formed...plume.
Keywords: ophiolite; metamorphic sole; Ar/Ar; Cuba; Caribbean–Colombian Oceanic Plateau
Introduction | 👁 Image
| Lázaro, C., Blanco-Quintero, I.F., Rojas-Agramonte, Y., Proenza, J.A., Núñez-Cambra, K., García-Casco, A. (2013) First description of a metamorphic sole related to ophiolite obduction in the northern Caribbean: Geochemistry and petrology of the Güira de Jauco Amphibolite complex (eastern Cuba) and tectonic implications. Lithos, 179. 193-210 doi:10.1016/j.lithos.2013.08.019 | Journal (article/letter/editorial) | | the Güira de Jauco
Amphibolite complex (eastern Cuba) and tectonic implications
C. Lázaro a,⁎, I.F. Blanco-Quintero...y Carretera Central, San Miguel del Padrón, 11000 Ciudad Habana, Cuba
f
Instituto Andaluz de Ciencias...August 2013
Keywords:
Metamorphic sole
Amphibolite
Cuba, ophiolite
Obduction
a b s t r a c t
The Güira...underlies the Mayarí–Baracoa Ophiolitic Belt (eastern Cuba) and is composed of highly foliated amphibolite...metamorphosed (high P) volcanic-arc terrane of eastern Cuba) suggest that the development of the ophiolite
and | 👁 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...omphacite. Minor minerals include epidote, biotite, albite, phengite, titanite, rutile, zircon, and apatite...Late-stage crystallizations include omphacite, albite and epidote from fluids nearly saturated in SiO2...high-temperature, Eastern Cuba, Caribbean.
1. Introduction
localities occur in the Sierra del Convento mélange
(Garcı́a-Casco | 👁 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
| García-Casco, Antonio, Rodríguez Vega, A., Cárdenas Párraga, J., Iturralde-Vinent, M. A., Lázaro, C., Blanco Quintero, I., Rojas Agramonte, Y., Kröner, A., Núñez Cambra, K., Millán, G., Torres-Roldán, R. L., Carrasquilla, S. (2009) A new jadeitite jade locality (Sierra del Convento, Cuba): first report and some petrological and archeological implications. Contributions to Mineralogy and Petrology, 158 (1) 1-16 doi:10.1007/s00410-008-0367-0 | Journal (article/letter/editorial) | | PAPER
A new jadeitite jade locality (Sierra del Convento, Cuba): first
report and some petrological and...serpentinite-matrix subduction mélange of the
Sierra del Convento (eastern Cuba) in a context associated
with tectonic...and include combinations of jadeite, omphacite,
albite, paragonite, analcime, clinozoisite-epidote, apatite...MineroMetalúrgico, Las Coloradas s/n., Moa 83329, Holguı́n, Cuba
J. Cárdenas Párraga C. Lázaro I. Blanco Quintero...Obispo no. 61, Plaza de
Armas, 10100 La Habana, Cuba
Y. Rojas Agramonte A. Kröner
Institut für Geowissenschaften | 👁 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...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...mélanges are located in
the Sierra del Cristal (La Corea) and the Sierra del Convento (Fig. 1a). The La Corea | 👁 Image
| LÁZARO, C., GARCÍA-CASCO, A., ROJAS AGRAMONTE, Y., KRÖNER, A., NEUBAUER, F., ITURRALDE-VINENT, M. (2009) Fifty-five-million-year history of oceanic subduction and exhumation at the northern edge of the Caribbean plate (Sierra del Convento mélange, Cuba) Journal of Metamorphic Geology, 27 (1) 19-40 doi:10.1111/j.1525-1314.2008.00800.x | Journal (article/letter/editorial) | | northern edge of the Caribbean plate (Sierra del
Convento mélange, Cuba)
C . L Á Z A R O , 1 A . G A R C...Obispo no. 61, Plaza de Armas, La Habana 10100, Cuba
ABSTRACT
Petrological and geochronological data...the serpentinitic mélange of the Sierra del Convento (eastern
Cuba) indicate counterclockwise P–T paths...associated trondhjemite from the Sierra del Convento mélange
(eastern Cuba). Petrological and geochemical...(Yucatan) block. All these terranes are well
exposed in Cuba (Fig. 2a). The oceanic material
includes the northern | 👁 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...the
reaction (NASH system):
Paragonite + Quartz = Albite + Al-silicate + H2O.
This reaction has a positive...and Algor 1977):
Albite + Quartz + Paragonite + H2O = Melt (at P > 8–9
kbar), and
Albite + Quartz + Kyanite...650 °C) in this system. Similar
relations for the albite-free jadeite-bearing assemblages indicate
that | 👁 Image
| Hertwig, Andreas, McClelland, William C., Kitajima, Kouki, Schertl, Hans-Peter, Maresch, Walter V., Stanek, Klaus, Valley, John W., Sergeev, Sergey A. (2016) Inherited igneous zircons in jadeitite predate high-pressure metamorphism and jadeitite formation in the Jagua Clara serpentinite mélange of the Rio San Juan Complex (Dominican Republic) Contributions to Mineralogy and Petrology, 171 (5) doi:10.1007/s00410-016-1256-6 | Journal (article/letter/editorial) | | blueschist host, as well as from loose blocks of
albite-jadeite rock and jadeitite that were all collected...of the Motagua Fault Zone, Guatemala; Sierra del Convento, Cuba;
Rio San Juan Complex, Dominican Republic)...utilized whole-rock and bulk-mineral (zircon, jadeite, albite)
oxygen isotope ratios as well as ion microprobe...Zone
(Harlow 1994; Harlow et al.
2011), Sierra del Convento
(García-Casco et al. 2009;
Cárdenas-Párraga...for zircon from the jadeitites of the
Sierra del Convento in Cuba (hydrothermal zircon, Cárdenas-Párraga | 👁 Image
| | Journal (article/letter/editorial) | | crystallize jadeite in lieu of jadeite plus quartz or albite, depending on pressure (see Harlow et al.
D
2015)...addition to saturation of either jadeitic pyroxene or albite (sodium aluminosilicates),
the rocks have been...determinations from zircon in jadeitite
and related mica-albite rocks yield ages of 98-80 Ma north of the MFS and...cross-over lithologies like jadeitite-omphacitites and albite-mica rocks. Samples have been
collected over 22...of the MFS
Distributions of jadeitite, albitite, albite-mica rock, phengite mica rock and omphacitite
| 👁 Image
| | Journal (article/letter/editorial) | | analcime
(NaAlSi2 O6 •H2 O), nepheline (NaAlSiO4 ), albite (NaAlSi3 O8 ), and quartz (SiO2 ). Loring Coes...the
important reactions nepheline + albite = jadeite and albite = jadeite + quartz awaited the work
of...mechanism for subjecting crustal rocks
containing albite to suitably high pressure to form jadeite, namely...(trondhjemitic to dacitic igneous rocks with dominant albite and quartz),
was suggested by Coleman (1961, 1980)... and formulae
Abbreviation
Mineral name
Ab
Albite
NaAlSi3 O8
Formula
Feldspar group
Notes
Ae | 👁 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...were
replaced by a symplectitic intergrowth of albite þ analcime nepheline (Fig. 2).
eschweizerbart_xxx...intergrown with other phases in symplectite. Vermicular albite grains are roughly perpendicularly orientated to...125–113 Ma (Harlow et al., 2004).
2.3. Sierra del Convento, Cuba
2.2. South of Motagua fault, Guatemala | 👁 Image
| Maresch, Walter V., Grevel, Christiane, Stanek, Klaus Peter, Schertl, Hans-Peter, Carpenter, Michael A. (2012) Multiple growth mechanisms of jadeite in Cuban metabasite. European Journal of Mineralogy, 24 (2) 217-235 doi:10.1127/0935-1221/2012/0024-2179 | Journal (article/letter/editorial) | | subduction-zone complex of the Escambray Massif in
central Cuba have been studied by optical and transmission electron...development of actinolite, chlorite, epidote and albite is observed. Quartz is present. Less recrystallized...pyroxene topotaxy, pyroxene epitaxy, Escambray Massif, Cuba.
1. Introduction
Schertl et al., 2007, 2008; Garcı́a-Casco...described occurrences. Recent findings in Iran, Cuba and Hispaniola can
be added to this still very short...description of the new Cuban occurrences in
eastern Cuba, Garcı́a-Casco et al. (2009) also point to a
short | 👁 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... quartz is
never found in the rock matrix, but albite is common.
The second suite contains common quartz...(i.e. >90 vol% jadeite), as well as jadeite-rich
albite rocks, jadeite-rich omphacite rocks and rare
pumpellyite-bearing | 👁 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) | | zircon crystals from three jadeitites and two mica–albite rocks from the North
Motagua Mélange and one phengite...dates from zircon indicate that jadeitites and mica–albite rocks from the GSZ were
formed through vein precipitation...et al., 2012). Abbreviations for the main units: Sierra de Santa Cruz ophiolite (SSC), Baja Verapaz ophiolite...paragonite (Pg), phengite (Ph),
omphacite (Omp), albite (Ab), minor zircon (Zrn), apatite and
graphite...assemblages of the four studied jadeitites and two mica–albite rock samples, with details about zircon.
Sample | 👁 Image
| Schertl, Hans -Peter, Maresch, Walter V., Stanek, Klaus P., Hertwig, Andreas, Krebs, Martin, Baese, Rauno, Sergeev, Sergey S. (2012) New occurrences of jadeitite, jadeite quartzite and jadeite-lawsonite quartzite in the Dominican Republic, Hispaniola: petrological and geochronological overview. European Journal of Mineralogy, 24 (2) 199-216 doi:10.1127/0935-1221/2012/0024-2201 | Journal (article/letter/editorial) | | are omphacite, phengite, glaucophane,
epidote, albite, calcite, titanite and zircon. Apatite and pumpellyite...subduction zone exposed in neighbouring eastern Cuba, are possible. Jadeitites and jadeite-rich rocks...rare high-temperature jadeitite as documented in Cuba.
Key-words: Rio San Juan Complex, jadeitite, blueschist...Hispaniola
(Schertl et al., 2007a and b, 2008) and Cuba (Garcı́aCasco et al., 2009; Cárdenas Párraga et...quartzite
Jadeite-lawsonite Lawsonite quartzite
albite, quartz-free)
(quartz-bearing)
(JQ)
quartzite (JLQ) | 👁 Image
| | Journal (article/letter/editorial) | | jadeite (Shi et al., 2012; Wang et al., 2012); in Cuba earlier
jadeite veins have been infiltrated by fluids...titanite, pyrite, apatite, zircon. In addition,
albite, titanite, analcime, actinolite, chlorite may occur...(TC6-1/3 from Valgrana-Tetto Chiapello, Cuneo Province, northern Italy) with a typical
pseudomorph of...fabric. Several other minerals (such as
chlorite, albite, ilmenite and clinozoisite) may also occur,
seldom...origin and age of jadeitites from Sierra del
Convento Mélange (Eastern Cuba). Eur. J. Mineral., 24,
313–331 | 👁 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...omphacite, kosmochlor, Cr-bearing jadeite-omphacite, albite, celsian,
banalsite, hyalophane, nyböite, eckermannite...and Na-
Name
Abbreviations Formulae
Aegirine
Albite
Allanite
Aeg
Ab
Aln
Amphibole
Amp
Analcime...samples). Nyunt (2009)
described that jadeitite, albite-jadeite rocks, albitite, chlorite schist, actinolite... and
that some veins contain only jadeite and albite, while
others have a boundary zone (on one or both | 👁 Image
| | Journal (article/letter/editorial) | | Cruz oph.
Sepur
foredeep
MAYA
CB(EK)
a
Sierra
del Convento
Los Ranchos
E
Motagua
Valley
Jam.
A
N...ama
–90°
Bahamas
Cub
D
C
B
–100°
Oriente Cuba
Los Pasos/
Mabujina
-Co
sta
SOUTH
AMERICA
Rica...reported single cooling age dates back to 118 Ma
in Cuba (García-Casco et al. 2006). Although very lowgrade...minimum
age of subduction initiation in eastern Cuba of 119 Ma
based on zircon ages in trondhjemite of...anatexis of subducted oceanic crust as in eastern Cuba. Zircons from these gneisses yield U–Pb ages
between | 👁 Image
| Escuder-Viruete, Javier, Valverde-Vaquero, Pablo, Rojas-Agramonte, Yamirka, Gabites, Janet, Castillo-Carrión, Mercedes, Pérez-Estaún, Andrés (2013) Timing of deformational events in the Río San Juan complex: Implications for the tectonic controls on the exhumation of high-P rocks in the northern Caribbean subduction–accretionary prism. Lithos, 177. 416-435 doi:10.1016/j.lithos.2013.07.006 | Journal (article/letter/editorial) | | peridotite massifs: GH, Gaspar
Hernández; LC, Loma del Catey; LM, Loma El Morrito; EH, Helechal. Locations:...phengite, chlorite, biotite, winchite,
actinolite, albite, titanite and ilmenite. The estimated P–T conditions...amphibole-bearing assemblages containing
phengite, paragonite, albite, epidote and chlorite document further
cooling...subunit. The magmatic
assemblage is composed of albite and quartz, with accessory garnet,
epidote, phengite...subduction-related
Mabujina Amphibolite Complex, Central Cuba. For these authors, the
Precambrian ages suggest | 👁 Image
| | Journal (article/letter/editorial) | | zonations likely formed in the stability field of albite during exhumation of the serpentinite mélange....lithologies such
as Ca–amphiboles–epidote–chlorite–albite schist, epidote–blueschist schist, and metagabbros...omphacite–bearing rocks with the assemblage of omphacite + albite + epidote + amphibole. The amphibole is
winchite...jadeite + muscovite +
paragonite + phlogopite + albite ± analcime ± LREE–rich
epidote ± titanite (Fig...the reaction albite = jadeite + quartz, at 0.27. The jadeite is locally replaced by
albite and analcime | 👁 Image
| Torró, Lisard, Proenza, Joaquín A., Marchesi, Claudio, Garcia-Casco, Antonio, Lewis, John F. (2017) Petrogenesis of meta-volcanic rocks from the Maimón Formation (Dominican Republic): Geochemical record of the nascent Greater Antilles paleo-arc. Lithos, 278. 255-273 doi:10.1016/j.lithos.2017.01.031 | Journal (article/letter/editorial) | | oceanic plateau rocks of the Caribbean Large Igneous Province (CLIP,
which comprises the plume-related Caribbean-Colombian...complexes onto
continental margins in Guatemala, Cuba, Hispaniola and Puerto Rico (Escuder-Viruete et...(Fig. 1a). In the Cordillera Central geological province, transpressional WNW-ESE faults
juxtaposed tectonostratigraphic...phengite, epidote, amphibole (actinolite ±
winchite), albite and quartz, even if the abundance of minerals diverges...et al., 2006) and some island arc tholeiites
from Cuba (Marchesi et al., 2007).
To constrain the geochemical |
|
