Results 171 to 180 of about 2,322 (211)
The temperate species of the genus Munida Leach (Crustacea, Decapoda, Galatheidae) in the east Pacific, with the description of a new species and additional records for tropical-subtropical species [PDF]
, 2003 Hendrickx, M.E.
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Presence of Discus rotundatus (Gastropoda, Endodontidae) on the island of Mallorca [PDF]
Altaba, Cristian R.
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Palaeogene komatiites from Gorgona Island
Nature, 1979UNMETAMORPHOSED mafic and ultramafic rocks overlain by Neogene oceanic sediments are exposed on Gorgona Island which is a remnant of the Coastal Cordillera along the Pacific margin of Colombia1. Gorgona is one of the rare places in the world where young pyroxenitic komatiites exhibiting typical quenched spinifex textures (Fig. 1) occur.
A. GANSSER +2 more
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Pb isotopes of Gorgona Island (Colombia): isotopic variations correlated with magma type
Earth and Planetary Science Letters, 1984Abstract Lead isotopic results obtained on komatiites and basalts from Gorgona Island provide evidence of large isotopic variations within a restricted area (8 × 2.5 km). The variations are correlated with differences in volcanic rock type. The highest isotopic ratios ( 206 Pb/ 204 Pb∼ 19.75 ) correspond to tholeiites which make up most of the ...
B. Dupré, L.M. Echeverría
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Petrology and geochemistry of komatiites and tholeiites from Gorgona Island, Colombia
Contributions to Mineralogy and Petrology, 1984Komatiitic rocks from Gorgona Island, Colombia, in contrast to their Archaean counterparts, occur as rather structureless flows. In addition, textural and mineralogical features indicate that the Gorgona komatiites may have crystallized from superheated liquids.
Bruce G. Aitken, Lina M. Echeverr�a
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Noble metal abundances in komatiite suites from Alexo, Ontario and Gorgona Island, Colombia
Geochimica et Cosmochimica Acta, 1987Abstract The distribution of the chalcophile and siderophile metals Cu, Ni, Au, Pd, Ir, Os and Ru in an Archaean komatiite flow from Alexo, Ontario and in a Phanerozoic komatiitic suite of Gorgona Island, Colombia, provides new information about the geochemical behaviour of these elements. Copper, Au and Pd behave as incompatible elements during the
G.E. Brügmann +3 more
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Giornale botanico italiano, 1992
Abstract Morphological and ecological observations on four fleshy crustose algae collected in the eulittoral and upper sublittoral zone of the Island of Gorgona: Myrionema liechtenstenii Hauck, Hildenbrandia canariensis B⊘rgesen, Peyssonnelia armorica (P. et H. Crouan) Weber-van Bosse in B⊘rgesen and Cruoria cruoriaeformis (P. et H. Crouan) Denizot are
Gianfranco Sartoni, Silvia Boddi
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Abstract Morphological and ecological observations on four fleshy crustose algae collected in the eulittoral and upper sublittoral zone of the Island of Gorgona: Myrionema liechtenstenii Hauck, Hildenbrandia canariensis B⊘rgesen, Peyssonnelia armorica (P. et H. Crouan) Weber-van Bosse in B⊘rgesen and Cruoria cruoriaeformis (P. et H. Crouan) Denizot are
Gianfranco Sartoni, Silvia Boddi
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Marine Ecology Progress Series, 2021
The production and accumulation of carbonate reef framework is the positive component of reef development. The main organisms participating in this process are corals and crustose coralline algae (CCA) because their combined calcareous skeletons construct and help to consolidate reef frameworks. We assessed the contribution (i.e.
EC Céspedes-Rodríguez, E Londoño-Cruz
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The production and accumulation of carbonate reef framework is the positive component of reef development. The main organisms participating in this process are corals and crustose coralline algae (CCA) because their combined calcareous skeletons construct and help to consolidate reef frameworks. We assessed the contribution (i.e.
EC Céspedes-Rodríguez, E Londoño-Cruz
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Pyroclastic rocks: another manifestation of ultramafic volcanism on Gorgona Island, Colombia
Contributions to Mineralogy and Petrology, 1986Tertiary ultramafic volcanism on Gorgona Island, Colombia, is manifested not only by komatiite flows, but also by a more voluminous sequence of tuff breccias, which is cut by comagmatic picrite dikes. The ultramafic pyroclastic rocks are chaotic to stratified mixtures of angular to subrounded glassy picritic blocks and a fine grained volcaniclastic ...
Echeverría, Lina M., Aitken, Bruce G.
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Messinian Lago-Mare mollusc fauna from the Gorgona Island slope, Tyrrhenian Sea
Geobios, 2007Late Miocene Lago-Mare macrofossiliferous sediments were recovered in the northeastern Tyrrhenian Sea by dredging the continental slope off Gorgona Island, Tuscan Archipelago, at 300470 m depth. The fossil assemblage consists of a rich lymnocardiid bivalve fauna dominated by Pontalmyra ex gr. P. incerta (Deshayes), associated with Dreissena ex gr.
Taviani M, Remia A, Esu D, Sami M
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