Artículos (Ciencias del Mar)
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Ítem Estimation of potential groundwater recharge in a growing touristic neotropical dry forest area(Elsevier, 2024-11-15) Ballesteros-Buitrago Karen; Jaramillo Marcela; Vergara-Bechará Santiago; González-Jiménez Lauren; Universidad EAFITLa Tatacoa Desert, Colombia's second most arid area after La Guajira, is one of the country's main tropical dry forest ecosystems and most attractive natural tourist areas. However, due to its climatic and hydrological conditions, this region presents a worrying panorama on water resources since 90% of the streams crossing La Tatacoa dry up during summer, affecting the water supply for human consumption, agriculture, and livestock. Therefore, groundwater in the area is an invaluable resource that could help meet future demand, and identifying the primary source of recharge becomes an urgent matter. In this paper, we intend to approach the subject only from the analysis of direct recharge for the three main hydrologic conditions in the region: neutral, dry (el Niño), and humid (la Niña), considering the influence of the ENSO. For this purpose, potential recharge was estimated using the SWB (soil water balance) method suggested by the USGS (United States Geological Service). Our results showed that direct recharge for humid conditions is around 380 mm/yr. For neutral and dry conditions, it ranges between 115 mm/yr and 160 mm/yr, corresponding to a recharged precipitation of 10% and 15%, respectively. These values are similar to those reported for semiarid areas, even though rainfall in La Tatacoa ranges between 1000 and 1500 mm/yr. Such low values of direct recharge, compared with the reported use of groundwater in the area, might suggest that there is a complementary source of recharge, probably from the perennial rivers surrounding La Tatacoa (Magdalena or Cabrera), but this is something that is yet to be proven. This study enhances our understanding of groundwater recharge in arid regions, offering new insights for sustainable groundwater management. However, further studies are needed to assess the impact of climate change on direct recharge so that more sustainable water management can be implemented in La Tatacoa, especially concerning supply for the increasing touristic activities.Ítem Stratigraphic mensuration, order and homotaxy(Wiley-Blackwell, 1998-06-01) Universidad EAFIT. Departamento de Geología; Ciencias del MarÍtem Revisión de las localidades fosilíferas del departamento de Antioquia, Colombia(Geological Engineering Curriculum Program, Geosciences and Environment College of Mines Faculty, National University of Colombia - Medellin Headquarters, 2016-08-01) Universidad EAFIT. Departamento de Geología; Ciencias del MarÍtem Sistema de información geográfica para el estudio de la erosión litoral en el departamento de Córdoba, Colombia: Herramientas de diseño, implementación y uso(Universidad Nacional de Colombia, Institutos de Estudios Ambientales Idea, 2006-12-01) Universidad EAFIT. Departamento de Geología; Ciencias del MarÍtem The San Nicolás succession of the Cauca paleolake: A late Holocene laminated high-resolution, ria lake record from the Neotropics(SPRINGER, 2013-01-01) Universidad EAFIT. Departamento de Geología; Ciencias del MarÍtem Revised stratigraphy of Neogene strata in the Cocinetas Basin, La Guajira, Colombia(Springer International Publishing, 2015-01-01) Universidad EAFIT. Departamento de Geología; Ciencias del MarThe Cocinetas Basin of Colombia provides a valuable window into the geological and paleontological history of northern South America during the Neogene. Two major findings provide new insights into the Neogene history of this Cocinetas Basin: (1) a formal re-description of the Jimol and Castilletes formations, including a revised contact; and (2) the description of a new lithostratigraphic unit, the Ware Formation (Late Pliocene). We conducted extensive fieldwork to develop a basin-scale stratigraphy, made exhaustive paleontological collections, and performed Sr-87/Sr-86 geochronology to document the transition from the fully marine environment of the Jimol Formation (ca. 17.9-16.7 Ma) to the fluvio-deltaic environment of the Castilletes (ca. 16.7-14.2 Ma) and Ware (ca. 3.5-2.8 Ma) formations. We also describe evidence for short-term periodic changes in depositional environments in the Jimol and Castilletes formations. The marine invertebrate fauna of the Jimol and Castilletes formations are among the richest yet recorded from Colombia during the Neogene. The Castilletes and Ware formations have also yielded diverse and biogeographically significant fossil vertebrate assemblages. The revised lithostratigraphy and chronostratigraphy presented here provides the necessary background information to explore the complete evolutionary and biogeographic significance of the excellent fossil record of the Cocinetas Basin.Ítem Late Holocene mangrove dynamics in the Colombian Caribbean since the ´Little Ice Age: a history of human and natural disturbances.(SAGE PUBLICATIONS LTD, 2010-01-01) Universidad EAFIT. Departamento de Geología; Ciencias del MarÍtem Los microfósiles como herramienta de correlación estratigráfica en exploración petrolera(Fondo Editorial Universidad EAFIT, 1999-01-01) Universidad EAFIT. Departamento de Geología; Ciencias del MarÍtem Productividad y oxigenación en la Cuenca de Panamá, Pacífico Colombiano, durante el Pleistoceno tardío-Holoceno: el registro de los Foraminíferos Bentónicos(Universidad Nacional de Colombia. Facultad de Minas, 2001-01-01) Universidad EAFIT. Departamento de Geología; Ciencias del MarÍtem Recent planktonic foraminifera from deep-sea sediments from the eastern equatorial Pacific: proxies of the Equatorial Front in the Late Quaternary(Instituto de Ivestigaciones Marinas y Costeras-INVEMAR, 2001-01-01) Universidad EAFIT. Departamento de Geología; Ciencias del MarÍtem Major Altitudinal shifts in Andean vegetation on the Amazonian flank show temporary loss of biota in the Holocene(SAGE PUBLICATIONS LTD, 2012-08-01) Universidad EAFIT. Departamento de Geología; Ciencias del MarÍtem Reconstrucción de las presiones parciales de CO2 y nitrato en el Pacifico Oriental para los últimos 150.000 años(UNIV NAC COLOMBIA, FAC NAC MINAS, 2000-01-01) Universidad EAFIT. Departamento de Geología; Ciencias del MarÍtem Pollen and diatom based environmental history since the last glacial maximum from the andean core Fuquene-7(JOHN WILEY & SONS LTD, 2003-01-01) Universidad EAFIT. Departamento de Geología; Ciencias del MarÍtem La sucesión paleoambiental del Cretácico de la región de Tequendama y oeste de la sabana de Bogotá, Cordillera Oriental Colombiana.(Universidad Nacional de Colombia. Facultad de Minas, 1999-03-01) Universidad EAFIT. Departamento de Geología; Ciencias del MarÍtem Introducción al Problema de la Erosión Litoral en Urabá (Sector Arboletes-Turbo), Costa Caribe colombiana(Instituto de Ivestigaciones Marinas y Costeras-INVEMAR, 2004-12-01) CORREA, IVAN DARIO; Universidad EAFIT. Departamento de Geología; Ciencias del MarÍtem La Paleolimnología como herramienta para el estudio y manejo de embalses(Universidad Nacional de Colombia, Institutos de Estudios Ambientales Idea, 2005-02-01) Universidad EAFIT. Departamento de Geología; Ciencias del MarÍtem Geomorfología de la Plataforma Somera del Departamento de Córdoba, Costa Caribe Colombiana(Geological Engineering Curriculum Program, Geosciences and Environment College of Mines Faculty, National University of Colombia - Medellin Headquarters, 2007-06-01) CORREA, IVAN DARIO; Universidad EAFIT. Departamento de Geología; Ciencias del MarÍtem Introducción al uso de los Geoindicadores de Cambios Ambientales en Costas Húmedas Tropicales(2004-07-01) CORREA, IVAN DARIO; Universidad EAFIT. Departamento de Geología; Ciencias del MarÍtem Foraminíferos bentónicos recientes en las aguas profundas de la Cuenca de Panamá: ecología y su posible relación con las corrientes de fondo(Instituto de Ivestigaciones Marinas y Costeras-INVEMAR, 2013-09-01) Martinez, Jose Ignacio; Universidad EAFIT. Departamento de Geología; Ciencias del MarÍtem Geomorphological Coastal Classifications after Natural Processes and Human Disturbance(Oceanography Society, 2014-01-01) Alcántara, Javier; CORREA, IVAN DARIO; Universidad EAFIT. Departamento de Geología; Ciencias del Mar