Results 61 to 70 of about 355,239 (403)

Fate of wastewater nitrogen upon injection into a coastal saline groundwater system, Florida Keys, USA

The Depositional Record, EarlyView.
Despite advanced wastewater treatment, dilution by rainwater and mixing, and microbial modification, nitrogen nutrients derived from shallowly injected wastewater are detected in nearshore waters in the Florida Keys. Abstract Injection of treated wastewater into the shallow subsurface on islands and along coastlines is a common practice in areas like ...
Miquela Ingalls, Lee R. Kump, Emily Stoller, Kate Meyers   +3 more
wiley   +1 more source

Incorporating remote sensing techniques to the DRASTIC index to assess groundwater vulnerability at mining areas: application to Sonora river aquifer, northwestern Mexico

Revista Mexicana de Ciencias Geológicas, 2022
Groundwater metal pollution is a major concern in mining areas. This study proposes a new addition to the DRASTIC method (DRASTIC+Lu) to assess groundwater vulnerability to metal pollution in mining areas by combining remote sensing (to locate metal ...
Denisse Archundia, Víctor Vidaña-Guillen, Juan Valenzuela-Munguia, Francisco Molina-Freaner   +3 more
doaj   +1 more source

Aquifer recharge, depletion, and connectivity: Inferences from GRACE, land surface models, and geochemical and geophysical data

, 2017
Data from the Gravity Recovery and Climate Experiment (GRACE) and outputs of the CLM4.5 model were used to estimate recharge and depletion rates for large aquifers, investigate the connectivity of an aquifer’s subbasins, and identify barriers and ...
A. Mohamed, M. Sultan, Mohamed Ahmed, E. Yan, E. Ahmed   +4 more
semanticscholar   +1 more source

Long-distance electron transfer by cable bacteria in aquifer sediments

The ISME Journal, 2016
The biodegradation of organic pollutants in aquifers is often restricted to the fringes of contaminant plumes where steep countergradients of electron donors and acceptors are separated by limited dispersive mixing.
H. Müller, J. Bosch, C. Griebler, L. Damgaard, L. Nielsen, T. Lueders, R. Meckenstock   +6 more
semanticscholar   +1 more source

The Cenomanian–Turonian boundary interval in the Western Canada Foreland Basin: Stratigraphy, geochemistry, geochronology and sea‐level changes recorded in expanded and condensed clastic successions

The Depositional Record, EarlyView.
Shallow‐marine mudstone of the Cretaceous Kaskapau Formation in the British Columbia foredeep preserves a 185 m thick record of OAE2. The organic carbon‐isotope and osmium‐isotope excursions can be correlated in detail with other Cenomanian–Turonian boundary sections around the world.
A. Guy Plint, Darren R. Gröcke, David Selby, Ireneusz Walaszczyk, Sandra L. Kamo, Ian Jarvis, João Trabucho‐Alexandre, Jessica Flynn, Frederick J. Longstaffe, Kienan P. Marion, Bogdan L. Varban, Alice D. C. Du Vivier, David Uličný   +12 more
wiley   +1 more source

Mechanisms of near‐normal sea water dolomitisation: Mesohaline‐reflux or syn‐depositional?

The Depositional Record, EarlyView.
This study investigates the dolomitisation of the Eocene Dammam Formation on the Arabian Plate using petrographic, mineralogical, geochemical and isotopic analyses. The findings reveal two distinct dolomite types, formed primarily through normal‐to‐mesohaline sea water dolomitisation, challenging previous models such as sabkha‐meteoric mixing.
Misbahu Abdullahi, Adhipa Herlambang, Khalid Al‐Ramadan, Ardiansyah Koeshidayatullah   +3 more
wiley   +1 more source

Hydrologic Connectivity in the Edwards Aquifer between San Marcos Springs and Barton Springs during 2009 Drought Conditions

Texas Water Journal, 2011
A study of water level data collected during the 2009 drought was conducted to determine if there is a hydrologic connection between the San Antonio segment and Barton Springs segment of the Edwards Aquifer.
Larry F. Land, Brian B. Hunt, Brian A. Smith, Paula Jo Lemonds   +3 more
doaj  

Ground-water resources of Collier County, Florida [PDF]

, 1962
The Biscayne Aquifer is the principal source of water for the heavily populated area in the vicinity of West Palm Beach and Miami. The publication of this data is timely and will assist in the intelligent development of the water resources of the area.
McCoy, H. J.
core  

Optimization of DRASTIC method by artificial neural network, nitrate vulnerability index, and composite DRASTIC models to assess groundwater vulnerability for unconfined aquifer of Shiraz Plain, Iran

Journal of Environmental Health Science and Engineering, 2016
BackgroundExtensive human activities and unplanned land uses have put groundwater resources of Shiraz plain at a high risk of nitrate pollution, causing several environmental and human health issues.
M. Baghapour, Amir Fadaei Nobandegani, N. Talebbeydokhti, Somayeh Bagherzadeh, A. Nadiri, Maryam Gharekhani, Nima Chitsazan   +6 more
semanticscholar   +1 more source

Orbital and eustatic control of basin hydrology during the first stage of the Messinian Salinity Crisis

The Depositional Record, EarlyView.
The paleo‐hydrology of the Sorbas Basin (SE Spain) and the wider Mediterranean region during the deposition of the Primary Lower Gypsum (PLG) stage of the Messinian Salinity Crisis, from ~5.97 to ~5.60 Ma, was affected by tectonics, precession‐forced climate oscillations, and eustatic sea‐level change.
Fernando Gázquez, Nicholas P. Evans, Thomas K. Bauska, Harold J. Bradbury, Alexandra V. Turchyn, María del Carmen Barroso, Alexander M. Piotrowski, José María Calaforra, David A. Hodell   +8 more
wiley   +1 more source