J. Cárdenas Párraga- PhD at University of Granada
J. Cárdenas Párraga
- PhD at University of Granada
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14
Publications
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213
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Introduction
Current institution
Additional affiliations
July 2009 - present
Publications
Publications (14)
Excellent indicators of technology, social organization, exchange patterns, and even beliefs, beads are a topic of research in their own right. Findings made between 2010 and 2011 at the Montelirio tholos burial, part of the Valencina Copper Age mega-site, in south-western Spain, revealed what amounts to the largest single-burial ever-documented as...
A U-Pb zircon date of ;113 Ma revealed that a variety of jadeitites and related omphacitite, chloritite and albite-rich rocks from the subduction-related Sierra del Convento block-in-serpentinite-matrix mélange (eastern Cuba) formed nearly synchronously with MORB metabasite-derived anatectic trondhjemitic liquids at high-temperature and pressure in...
Dense and strong, hydrothermal-metasomatic jadeitite and jadeite-omphacite rocks were used as tools and adornments throughout the wider Caribbean since initial inhabitation. Regionally, rich sources of jadeitite and jadeite-omphacite jade are known only in Guatemala (north and south of the Motagua Fault Zone), eastern Cuba and the northern Dominica...
Four artifacts from San Salvador Island, Bahamas, with affinities to jadeite jade were studied by mineralogical and petrographical techniques and compared to similar studies of jadeite rock (jadeitite) from sources in the greater Caribbean region: Guatemala (both north and south Motagua mélange occurrences); the Sierra del Convento Mélange, Cuba; a...
Jadeitite and Subduction zone
The Sierra del Convento and La Corea mélanges (eastern Cuba) are vestiges of a Cretaceous subduction channel in the Caribbean realm. Both mélanges contain blocks of oceanic crust and serpentinite subducted to high pressure within a serpentinite matrix. The bulk composition of serpentinite indicates spinel-harzburgite and -herzolite protoliths. The...
Jadeitite (jadeite jade) from Sierra del Convento (eastern Cuba) occurs in a subduction-related serpentinite-matrix mélange associated with a variety of high-pressure tectonic blocks including garnet-amphibolites and related anatectic trondhjemites. The eastern Cuban jadeitite is massive and characterized by rare quartz inclusions and omphacite exs...
Jadeitite (jadeite jade) from Sierra del Convento (eastern Cuba) occurs in a subduction-related serpentinite-matrix mélange associated with a variety of high-pressure tectonic blocks including garnet-amphibolites and related anatectic trondhjemites. The eastern Cuban jadeitite
is massive and characterized by rare quartz inclusions and omphacite exs...
A new jadeitite jade locality has been discovered in the serpentinite-matrix subduction mélange of the Sierra del Convento (eastern Cuba) in a context associated with tectonic blocks of garnet-epidote amphibolite, tonalitic-trondhjemitic epidote gneiss and blueschist. The jade outcrops occur as blocks surrounded by serpentinite, as late Miocene-ear...
A new jadeitite jade locality has been discovered in the serpentinitematrix subduction mélange of the Sierra del Convento (eastern Cuba) in a context associated with tectonic blocks of garnetepidote amphibolite, tonalitictrondhjemitic epidote gneiss and blueschist. The jade outcrops occur as blocks surrounded by serpentinite, as late Mioceneear...
A new jadeitite jade locality has been discovered in the serpentinite-matrix subduction mélange of the Sierra del Convento
(eastern Cuba) in a context associated with tectonic blocks of garnet-epidote amphibolite, tonalitic–trondhjemitic epidote
gneiss, and blueschist. The mineral assemblages of jadeitite jade and jadeite rocks are varied and inclu...
