Results 11 to 20 of about 44 (39)
Estudios Geologicos, 1984 El análisis sedimentológico y petrológico del conjunto de los sedimentos calcáreos y las rocas silíceas continentales del Mioceno medio, al sur de Villaluenga, da nuevas perspectivas a la interpretación y génesis de estas rocas.
Mª Angeles Bustillo
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Algunas experiencias en el uso de índices limnológicos en Colombia
Acta Biológica Colombiana, 2016 El objetivo central de este trabajo es mostrar algunas experiencias del Departamento de Biología de la Universidad Nacional de Colombia en la elaboración de índices limnológicos para evaluar el estado ecológico de sistemas acuáticos colombianos.
Gabriel Antonio Pinilla Agudelo
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Earth Surface Processes and Landforms, Volume 50, Issue 5, April 2025.This transdisciplinary study analyses the geomorphic consequences of microbial mats associated with freshwater outflows in a macrotidal environment. Microorganisms were identified using the DNA metabarcoding approach. SEM analysis of quartz collected from the beach surface provided data on the marine and aeolian forces, as well as biological processes ...
Yvonne Battiau‐Queney +8 more
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The Depositional Record, Volume 10, Issue 5, Page 637-669, November 2024.A tufa mound developed in north‐east Alberta is characterised by an unusual emplacement of a gypsum caprock. This two‐tiered architecture resulted from the bicarbonate‐saturated groundwater flow along Upper Devonian limestone being redirected deeper and encountering the halite–anhydrite dissolution trend within the underlying Prairie Evaporite ...
Paul L. Broughton
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Gayana, 2006 Hasta 1917 la información existente sobre la flora diatomológica de aguas continentales de Chile provino de las publicaciones de investigadores extranjeros.
Patricio Rivera Ramírez
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Gayana, 2006 Se hace una revisión de la información taxonómica de las algas dulceacuícolas de Chile, particularmente referida a la diversidad expresada como riqueza específica de los grupos de algas que han sido citados para el país, exceptuando al grupo de las ...
Oscar Parra
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Diatoms from lentic and lotic systems in Antioquia, Chocó and Santander Departments in Colombia
Revista de Biología Tropical, 2008 In the tropical and subtropical regions, there is a large number of species which has not been yet described. The high possibility of extinction makes their inventory a priority.
Silvia E Sala, John J Ramírez
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Revista de Biología Tropical, 2011 Fundulus lima inhabits river drainage systems and is threatened after the introduction of cichlids in the area. To support conservation programs, the spatial and temporal variation of the diet composition of this endangered killifish, was determined in ...
Dinora Acosta Zamorano +3 more
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Paleohydrological Changes in Highland Desert Rivers and Human Occupation, 7000-3000 Cal. Yr B.P., South-Central Andes, Argentina. [PDF]
Geoarchaeology, 2016 Grana L +4 more
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