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| Titel: |
AGE AND TECTONIC SIGNIFICANCE OF HIGH-PRESSURE METAMORPHIC ROCKS OF CUBA |
| Auteur: |
Somin, M. Arakelyants, M. Kolesnikov, E. |
| Verschenen in: |
International geology review |
| Paginering: | Jaargang 34 (1992) nr. 2 pagina's 105-118 |
| Jaar: |
1992-02 |
| Inhoud: |
A combination of geological and isotopic-geochronological (K/Ar, 40Ar/39Ar, U-Pb-zircon methods) studies indicates that high-pressure-low-(in part, intermediate) temperature metamorphic rocks of both coherent complexes and inclusions in serpentinite melange were formed during Cretaceous and possibly to a small extent during Paleogene time. The original rocks are mostly of Jurassic and Cretaceous age. Pre-Jurassic metamorphic rocks have not been found within the complexes investigated. The metamorphic histories of many Cuban eclogites and garnet amphibolites were complex, but nevertheless reflect only a single Laramide tectono-metamorphic cycle. The discovery that the high-pressure meta-morphic rocks of Cuba are young confirms that major lateral displacement of crustal masses played a very important role in the structural development of the island. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
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