Ring of Cenotes (sinkholes), northwest Yucatan, Mexico: Its hydrogeologic characteristics and possible association with the Chicxulub impact crater

Perry, Eugene C.; Marín, Luis E.; McClain, Jana; Velázquez, Gustavo Aguilar

doi:10.1130/0091-7613(1995)023<0017:rocsny>2.3.co;2

Cited by 132 publications

(87 citation statements)

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“…Studies have demonstrated that this particular spring is responsible for the largest contribution of groundwater and nutrients along the coast [26]. Regarding groundwater regional flux, the hydrological conceptual model of this system states that the main regional flow goes from the southern to the northern part of the state [6], although in the ring of cenotes, which is a semicircular accumulation of sinkholes, water transport preferentially goes from the center of the state to the eastern and western coastal areas [1,28]. Hydraulic gradient of the aquifer has been reported to be 7 mm Km −1 ; therefore for inland groundwater to reach the coastal area it could take from weeks to months [29].…”

Section: Methodsmentioning

confidence: 99%

“…Importantly, groundwater flows preferentially from south to north through pores, fissures, and fractures. One of the main families of fractures is located into the ring of cenotes (sinkholes), where the groundwater flows preferentially, but not uniquely, from the center of the peninsula towards the northeast and northwest coasts [1]. In the northwest coast, specifically in Dzilam de Bravo (DB), submerged springs are widely distributed throughout the zone [2,3].…”

Section: Introductionmentioning

confidence: 99%

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Submerged Groundwater Discharges as Source of Fecal Material in Protected Karstic Coastal Areas

Manzano¹,

Árcega-Cabrera

Derrien

et al. 2018

Geofluids

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Coastal zones are vital for their ecosystem services and socioeconomic value. Accordingly, several zones have been protected to limit anthropogenic development and to avoid environmental degradation. Nevertheless, some of these protected areas keep deteriorating probably related with anthropogenic contributions not considered in legislation. Specifically, submerged groundwater discharges (springs) could be releasing anthropogenic materials carried from remote inland areas to the coast. Here we evaluate the role and temporal variation of submerged groundwater discharges as sources of anthropogenic materials using the 5 -stanol C 27 markers in the natural protected area of Dzilam de Bravo, Yucatán, Mexico. Results demonstrate that (1) submerged groundwater discharge flux velocity and direction vary between hydrological season, exhibiting higher flow rates in Nortes season contrary to dry season and (2) the presence of coprostanol and epicoprostanol (anthropogenic fecal matter markers) in sediments surrounding the submerged groundwater discharges provides proof of allochthonous anthropogenic fecal material in a protected area, probably from remote inland sites. Thus, it is vitally important that inland anthropogenic materials transported in groundwater and released in the coastal environment by submerged groundwater discharges be considered in protection plans, like protection perimeters, for coastal zones.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Submerged Groundwater Discharges as Source of Fecal Material in Protected Karstic Coastal Areas

Manzano¹,

Árcega-Cabrera

Derrien

et al. 2018

Geofluids

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“…En cuanto a la salinidad, las diferencias entre localidades en sus concentraciones medias y variabilidad se asocian por una parte con una mayor descarga de agua subterránea en la zona de Dzilam que favorece bajas salinidades, mientras que en Progreso la alta salinidad se favorece por la menor profundidad media en esta localidad (<6m) favoreciendo la evaporación y concentración de sales en la columna de agua, además de efectos de la Corriente de Yucatán que bañan la plataforma yucateca (Cárdenas-Palomo 2010). Adicionalmente, las características geomorfológicas del área donde se localiza Dzilam, llamada "zona del anillo de cenotes", favorecen mayores descargas de aguas subterráneas de tipo manantial (Perry et al 1995). Si bien las menores salinidades en Dzilam coinciden con la época de lluvias y por lo tanto mayores descargas de agua subterránea hacia la costa, en el caso de Progreso las menores salinidades se observaron en la época de nortes, lo que sugiere que en zonas de flujo preferencial como la del anillo de cenotes el tiempo de retardo entre las precipitaciones y la descarga de agua en la zona costera es menor.…”

Section: Pyrodinium Bahamense Plate X Xunclassified

Variaciones estacionales de la estructura comunitaria del fitoplancton en zonas de descarga de agua subterránea en la costa norte de la Península de Yucatán

Álvarez-Góngora¹,

Liceaga-Correa²,

Herrera-Silveira³

2012

RBT

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Seasonal variations of community structures phytoplankton in groundwater discharge areas along the Northern Yucatán Peninsula coast. The highly touristic Yucatán Peninsula is principally constituted with coastal marine environments. Like other coastal areas, this has been affected by the increase of waste water discharge, hydrological modifications and land use changes in the area. The phytoplankton community structure is one of the main components of coastal ecosystems and the most affected in hydrological processes. In order to follow the seasonal variations, the phytoplankton was characterized to follow the hydrological variability in two sites (Dzilam and Progreso) of the Northern Yucatán Peninsula. For this, cruises were carried out monthly during one year, from April 2004 to March 2005, with two samplings per season (dry, rainy and "nortes"). Hydrological variability was associated with seasonality and directly linked to groundwater discharges in the Dzilam area, and waste water discharges in the Progreso area. The highest nutrient concentrations occurred mainly during the rainy season. The phytoplankton community changes observed throughout the year suggested that the hydrological and chemical variability associated with seasonality and anthropogenic impacts have a strong influence. The substitution of diatoms by dinoflagellates as the dominant group in Progreso was the result of seasonal variability itself, but also could have been caused by eutrophic processes; while in Dzilam, the major presence of diatoms could have been favored by groundwater discharges. The results of this study can be used to understand the linkages between stressors from the anthropogenic activities and coastal water quality and changes. Rev. Biol. Trop. 60 (1): 157-172. Epub 2012 March 01.

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“…Furthermore, the Dzilam Protected Area is situated at the eastern edge of a semicircleshaped zone of privileged GD discharge named as ''ring of cenotes,'' featured by a high hydraulic gradient at both arms of such region (Perry et al, 1995).…”

Section: Methodsmentioning

confidence: 99%

Seasonal Responses of Phyloplankton Productivity to Water-Quality Variations in a Coastal Karst Ecosystem of the Yucatan Peninsula

Medina-Gómez

Herrera-Silveira

2009

goms

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Ring of Cenotes (sinkholes), northwest Yucatan, Mexico: Its hydrogeologic characteristics and possible association with the Chicxulub impact crater

Cited by 132 publications

References 0 publications

Submerged Groundwater Discharges as Source of Fecal Material in Protected Karstic Coastal Areas

Submerged Groundwater Discharges as Source of Fecal Material in Protected Karstic Coastal Areas

Variaciones estacionales de la estructura comunitaria del fitoplancton en zonas de descarga de agua subterránea en la costa norte de la Península de Yucatán

Seasonal Responses of Phyloplankton Productivity to Water-Quality Variations in a Coastal Karst Ecosystem of the Yucatan Peninsula

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