Results 91 to 100 of about 2,322 (211)

A mid-Archaean ophiolite complex, Barberton Mountain land [PDF]

open access: yes
New field observations and structurally restored geologic sections through the southern part of 3.5-3.6 Ga Barberton greenstone belt show that its mafic to ultramafic rocks form a pseudostratigraphy comparable to that of Phanerozoic ophiolites; this ...
Dewit, M. J., Hart, R., Hart, R.
core   +1 more source

Accreted oceanic terranes in Ecuador: Southern edge of the Caribbean plate ? [PDF]

open access: yes, 2009
in pressThe western part of Ecuador is made of several oceanic terranes, which comprise two oceanic plateaus, of Early (≈ 120 Ma), and Late Cretaceous age (≈ 90 Ma), respectively.
Amortegui, Andrea   +5 more
core   +2 more sources

PATRONES ESPACIO-TEMPORALES DE LA ESTRUCTURA Y COMPOSICIÓN DE LA HOJARASCA EN LAS QUEBRADAS DEL PARQUE NACIONAL NATURAL GORGONA SPATIO-TEMPORAL PATTERNS OF STRUCTURE AND COMPOSITION OF LEAF LITTER IN STREAMS OF THE GORGONA NATURAL NATIONAL PARK

open access: yesActualidades Biológicas, 2009
Este trabajo estima la estructura y composición de la tafocenosis de la hojarasca acumulada en el lecho de nueve quebradas de la isla Gorgona en abril y junio de 2008.
Sandra M. Valencia-G.   +3 more
doaj  

Descriptive and spatial analysis of bycatch in tuna purse-seine fishery in the colombian Pacific Ocean, with an elasmobranch approach

open access: yesOcean and Coastal Research
Bycatch species are as important as target species in the challenge of comprehensive fishery management. This is especially the case for vulnerable species such as elasmobranchs in offshore areas of the Colombian Pacific Ocean (CPO), for which ...
Vladimir Puentes   +11 more
doaj   +1 more source

DNA Barcoding reveals the first record of Villamizar’s Worm Salamander, Oedipina villamizariorum Reyes-Puig et al., 2020 (Caudata, Plethodontidae), on the former island prison Gorgona in Colombia [PDF]

open access: yesCheck List
We document the first record of Oedipina villamizariorum Reyes-Puig et al., 2020 in Colombia, from Gorgona National Natural Park located in Guapi Municipality, Cauca department.
Ana M. Saldarriaga-Gómez   +4 more
doaj   +3 more sources

Adiciones a la avifauna de Colombia de especies arribadas a la Isla Gorgona Adiciones a la avifauna de Colombia de especies arribadas a la Isla Gorgona

open access: yesCaldasia, 1990
Se registran siete especies nuevas para la avifauna de Colombia a partir de observaciones y capturas hechas en el Parque Nacional Natural Isla Gorgona, Océano Pacífico, Colombia, Aphriza virgata (Scolopacidae) y Rhodospingus cruentus (Fringillidae) son ...
Ortiz-Von Halle Bernardo
doaj  

Iron isotope tracing of mantle heterogeneity within the source regions of oceanic basalts [PDF]

open access: yes
Mineralogical variations in the Earth's mantle and the relative proportions of peridotitic versus enriched and potentially crustally-derived pyroxenitic domains within the mantle have important implications for mantle dynamics, magma generation, and the ...
Bizimis, Michael, Williams, Helen M.
core   +1 more source

New geological data from Gorgona island (northern Tyrrhenian sea).

open access: yes, 2002
The oceanic HP/LT metamorphic units cropping out in the Gorgona Island (Tuscan Archipelago) are an important element to define the Alps-Apennines geological boundary. In particular, they could represent a link between the Alpine Schistes Lustres of the Corsica Island and the similar oceanic metamorphic units of the inner part of the Northern Apennines (
ORTI, LETIZIA   +3 more
openaire   +2 more sources

The invasive snowflake coral (Carijoa riisei) in the Tropical Eastern Pacific, Colombia

open access: yesRevista de Biología Tropical, 2014
Carijoa riisei (Octocorallia: Cnidaria), a western Atlantic species, has been reported in the Pacific as an invasive species for nearly forty years. C.
Juan Armando Sánchez, Diana Ballesteros
doaj  

Gillraker analysis and speciation in the thread herring genus Opisthonema [PDF]

open access: yes, 1963
ENGLISH: The thread herrings, genus Opisthonema, family Clupeidae, are marine fishes that occur only in tropical and subtropical waters off both coasts of the American continent.
Barrett, Izadore, Berry, Frederick H.
core  

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