Results overview: Found 5 records in 0.02 seconds.
Articles, 5 records found
Articles 5 records found  
1.
13 p, 984.9 KB Geochemistry and petrology of three granitoid rock cores from the Nicaraguan Rise, Caribbean Sea : implications for its composition, structure and tectonic evolution / Lewis, J.F. (The George Washington University. Department of Earth and Environmental Science) ; Kysar Mattietti, G. (The George Mason University. Atmospheric, Oceanic and Earth Science Department) ; Perfit, M. (University of Florida. Department of Geological Sciences) ; Kamenov, G. (University of Florida. Department of Geological Sciences)
The Nicaraguan Rise is a major submarine structure of poorly known origin. Its lithologies have been studied from dredge hauls and land outcrops on the Greater Antilles and Central America and its structure from geophysical data. [...]
2011 - 10.1344/105.000001714
Geologica acta, Vol. 9, Núm. 3-4 (setembre-desembre 2011) , p. 467-469  
2.
17 p, 934.3 KB Chromite and platinum group elements mineralization in the Santa Elena Ultramafic Nappe (Costa Rica): geodynamic implications / Zaccarini, F. (University of Leoben. Department of Applied Geosciences and Geophysics) ; Garuti, G. (University of Leoben. Department of Applied Geosciences and Geophysics) ; Proenza, J.A. (Universitat de Barcelona. Departament de Cristal·lografia, Mineralogia i Dipòsits Minerals) ; Campos, L. (University of Costa Rica. Escuela Centroamericana de Geología) ; Thalhammer, O.A.R. (University of Leoben. Department of Applied Geosciences and Geophysics) ; Aiglsperger, T. (Universitat de Barcelona. Departament de Cristal·lografia, Mineralogia i Dipòsits Minerals) ; Lewis, J.F. (The George Washington University. Department of Earth and Environmental Sciences)
Chromitites associated with strongly altered peridotite from six distinct localities in the Santa Elena ultramafic nappe (Costa Rica) have been investigated for the first time. Santa Elena chromitites commonly display a compositional variation from extremely chromiferous (Cr/(Cr+Al)=0. [...]
2011 - 10.1344/105.000001696
Geologica acta, Vol. 9, Núm. 3-4 (setembre-desembre 2011) , p. 407-423  
3.
18 p, 1.5 MB Petrogenesis of fertile mantle peridotites from the Monte del Estado massif (Southwest Puerto Rico): a preserved section of Proto-Caribbean lithospheric mantle? / Marchesi, C. (Géosciences Montpellier) ; Jolly, W.T. (Brock University. Department of Earth Sciences) ; Lewis, J.F. (The George Washington University. Department of Earth and Environmental Sciences) ; Garrido, C.J. (CSIC-Universidad de Granada. Instituto Andaluz de Ciencias de la Tierra) ; Proenza, J.A. (Universitat de Barcelona. Departament de Cristal·lografia, Mineralogia i Dipòsits Minerals) ; Lidiak, E.G. (University of Pittsburgh. Department of Geology and Planetary Science)
The Monte del Estado massif is the largest and northernmost serpentinized peridotite belt in southwest Puerto Rico. It is mainly composed of spinel lherzolite and minor harzburgite with variable clinopyroxene modal abundances. [...]
2011 - 10.1344/105.000001713
Geologica acta, Vol. 9, Núm. 3-4 (setembre-desembre 2011) , p. 289-306  
4.
36 p, 1.3 MB The metallogenic evolution of the Greater Antilles / Nelson, C.E. (Consulting Geologist) ; Proenza, J.A. (Universitat de Barcelona. Departament de Cristal.lografia, Mineralogia i Dipòsits Minerals) ; Lewis, J.F. (The George Washington University. Department of Earth and Environmental Sciences) ; López-Kramer, J. (Instituto de Geofísica y Astronomía AMA-CITMA. Departamento de Geología Ambiental, Geofísica y Riesgos)
The Greater Antilles host some of the world's most important deposits of bauxite and lateritic nickel as well as significant resources of gold and silver, copper, zinc, manganese, cobalt and chromium. [...]
2011 - 10.1344/105.000001741
Geologica acta, Vol. 9, Núm. 3-4 (setembre-desembre 2011) , p. 229-264  
5.
27 p, 1.3 MB Ophiolite-Related Ultramafic Rocks (Serpentinites) in the Caribbean Region : a Review of their Occurrence, Composition, Origin, Emplacement and Ni-Laterite Soil Formation / Lewis, J. F. (The George Washington University. Department of Earth and Environmental Sciences) ; Draper, G. (Florida International University. Department of Earth Sciences) ; Espaillat, J. (Corporación Minera Dominicana) ; Proenza, J. A. (Universitat de Barcelona. Departament de Cristalografia, Mineralogia i Dipòsits Minerals) ; Jiménez, J. (Falconbridge Dominicana)
Ultramafic rocks, mainly serpentinized peridotites of mantle origin, are mostly associated with the ophiolites of Mesozoic age that occur in belts along three of the margins of the Caribbean plate. The most extensive exposures are in Cuba. [...]
2006 - 10.1344/105.000000368
Geologica acta, Vol. 4, Núm. 1-2 (2006) , p. 237-263  

See also: similar author names
1 Lewis, J.
3 Lewis, J. F.
8 Lewis, J.D.
1 Lewis, Jane P.
1 Lewis, Jenny
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