Geologic and environmental aspects of surface cementation, north coast, Yucatan, Mexico

Perry, Eugene C.; W., None D. J. P. Swift, J. A. Thorne, A.; Gamboa, José Mariños; Reeve, A. S.; Sanborn, Robert; Marín, Luis E.; Villasuso, Miguel

doi:10.1130/0091-7613(1989)017<0818:gaeaos>2.3.co;2

Cited by 88 publications

(56 citation statements)

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“…The rainy season in the region is between June and October and precipitation ranges from 900 to 1500 mm yr À 1 (Chavez-Guillen, 1986;Perry et al, 2002). The area is characterized by minimal surface runoff due to high infiltration rates but a lag of several months may exist before peak discharge of groundwater to the coast occurs (Michael et al, 2005;Perry et al, 1989).…”

Section: Study Regionmentioning

confidence: 99%

Composition and fluxes of submarine groundwater along the Caribbean coast of the Yucatan Peninsula

Null

Knee

Crook

et al. 2014

Continental Shelf Research

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a b s t r a c tSubmarine groundwater discharge (SGD) to the coastal environment along the eastern Yucatan Peninsula, Quintana Roo, Mexico was investigated using a combination of tracer mass balances and analytical solutions. Two distinct submarine groundwater sources including water from the unconfined surficial aquifer discharging at the beach face and water from a deeper aquifer discharging nearshore through submarine springs (ojos) were identified. The groundwater of nearshore ojos was saline and significantly enriched in short-lived radium isotopes ( 223 Ra, 224 Ra) relative to the unconfined aquifer beach face groundwater. We estimated SGD from ojos using 223 Ra and used a salinity mass balance to estimate the freshwater discharge at the beach face. Analytical calculations were also used to estimate wave set-up and tidally driven saline seepage into the surf zone and were compared to the salinity-based freshwater discharge estimates. ). Discharge at the beach face was in the range of 3.3-8.5 m 3 d À 1 m À 1 for freshwater and 2.7 m 3 d À 1 m À 1 for saline water based on the salinity mass balance and wave-and tidally-driven discharge, respectively. Although discharge from the ojos was larger in volume than discharge from the unconfined aquifer at the beach face, dissolved inorganic nitrogen (DIN) was significantly higher in beach groundwater; thus, discharge of this unconfined beach aquifer groundwater contributed significantly to total DIN loading to the coast. DIN fluxes were up to 9.9 mol d À 1 m À 1 from ojos and 2.1 mol d À 1 m À 1 from beach discharge and varied regionally along the 500 km coastline sampled. These results demonstrate the importance of considering the beach zone as a significant nutrient source to coastal waters for future management strategies regarding nutrient loading to reef environments and coastal development. This study also identifies the importance of understanding the connectivity of submarine spring discharge to the nearshore coastal environment and the impact of inland anthropogenic activities may have on coastal health.

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Section: Study Regionmentioning

confidence: 99%

Composition and fluxes of submarine groundwater along the Caribbean coast of the Yucatan Peninsula

Null

Knee

Crook

et al. 2014

Continental Shelf Research

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“…The opposite patterns of these two tracers support: (1) the connection among these environments and (2) the mixing of groundwater with seawater along its flow towards the sea. Mixing of the freshwater lens with the saline intrusion has also been reported (Perry et al 1989) for the northern coast of the Yucatan Peninsula. Beddows et al (2002) proposed that this mixing is enhanced by the oscillation of the flow caused by tides in the region.…”

Section: Resultsmentioning

confidence: 90%

Groundwater Pollution in a Karstic Region (NE Yucatan): Baseline Nutrient Content and Flux to Coastal Ecosystems

Hernández-Terrones¹,

Rebolledo-Vieyra²,

Merino–Ibarra

et al. 2010

Water Air Soil Pollut

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The quality of groundwater is threatened in karstic regions with very high population growth, such as the eastern coast of Yucatan. As polluted groundwater flows towards the ocean, coastal ecosystems and coral reefs may also be affected. Pollution and the interaction between the coastal aquifer and the reef lagoon were assessed at a developing area (Puerto Morelos, NE Yucatan Peninsula) within the Mesoamerican Coral Reef System. Coastal environments along the land-sea gradient (wells, mangroves, beaches, submarine springs, the reef lagoon, and the open sea) were sampled. Silicate and salinity were used as tracers of groundwater and seawater, respectively. Their patterns evidence water flow and mixing among these coastal environments. High nitrate concentrations (268.6 μM) and coliform bacteria densities indicate groundwater pollution in most of the wells sampled and also in mangroves, beaches, and submarine springs. Phosphorous content peaks (14.2 μM) in mangroves, where it is likely released due to reducing conditions in the sediments. Nitrogen flux toward the lagoon reef through groundwater discharge is estimated at 2.4 ton N km −1 year −1 and phosphorous at 75 to 217 kg P km −1 year −1 . These results provide evidence of the need for more detailed groundwater studies and for the integrated management of aquifers and coastal ecosystems in karstic regions.

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“…No rivers drain the Yucatan because rainfall quickly penetrates through the permeable vadose zone to the water table (BauerGottwein et al, 2011). Studies of the water table response to external forcing mechanisms in the Northwestern Yucatan have shown that sea-level is a controlling factor on water table fluctuations (Perry et al, 1989(Perry et al, , 1995(Perry et al, , 2003. However, fault and fracture zones (Rio Hondo, Holbox) are thought to influence water flow (Kambesis and Coke, 2013).…”

Section: Geologic Settingmentioning

confidence: 98%

Reconstructing water level in Hoyo Negro, Quintana Roo, Mexico, implications for early Paleoamerican and faunal access

Collins

Reinhardt

Rissolo

et al. 2015

Quaternary Science Reviews

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Geologic and environmental aspects of surface cementation, north coast, Yucatan, Mexico

Cited by 88 publications

References 0 publications

Composition and fluxes of submarine groundwater along the Caribbean coast of the Yucatan Peninsula

Composition and fluxes of submarine groundwater along the Caribbean coast of the Yucatan Peninsula

Groundwater Pollution in a Karstic Region (NE Yucatan): Baseline Nutrient Content and Flux to Coastal Ecosystems

Reconstructing water level in Hoyo Negro, Quintana Roo, Mexico, implications for early Paleoamerican and faunal access

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