aquifer

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Related to Aquiclude: aquifuge

aquifer

a reservoir of ground water found in underground rock, sand and gravel layers.
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Period Group Formation Lithology Aquifer potential Lower Balqa Umm Rijam Chert, Semi aquifer Tertiary (B4) limestone Muwaqqar Chalk, Aquitard (B3) Marl Al Hasa Phosphate Good (B2a) aquifer Amman Silicified Aquifer (B2b) Limestone interrupted Wadi Ghudran Chalk, aquiclude (Bl) Chalky marl Cretaceous Ajlun Wadi As Sir Limestone good aquifer (A7) Shueib Marly Aquitard to badly (A5-6) Limestone developed aquifer Hummar Dolomitic Semi aquifer (A4) Limestone Fuhais Marl Aquitard, partly (A3) semi aquifer Na'ur Marly Semi aquifer (Al-2) Limestone Period Group Thickness (meter) Lower Balqa 70 m Tertiary 60-70 m 60 m 50 m 20 m Cretaceous Ajlun 20 m No outcrop No outcrop No outcrop No outcrop Table 2.
Clark's results show that the Bruce DGR is an extremely low permeability environment and that the pore fluids in the thick aquiclude at the site are essentially Paleozoic in age, and have experienced little to no movement since their emplacement.
It is here, however, that artisan conditions, due to the interbedment of sand aquifers within clay aquicludes occur.
The lysimeter was then gently pushed through the wetland media to the underlying silt-clay layer and then slowly pounded into the aquiclude layer.
In this region, ponds are typically constructed into the Miocene age Hawthorne Formation material that is an effective aquiclude. Where constructed on stream channels, ponds store stream flow but they are also used as irrigation sources.
A relatively impermeable layer that restricts vertical flow is called an aquitard (or, if very restrictive, aquiclude).
The water outlet in 1999 was not very large because of the Savala buried valley acting as an aquiclude in the south and west and inhibiting groundwater inflow (Fig.
Below the Wilcox is the Midway Group, an aquiclude that also serves as the basement for fresh water in this area.
Permafrost is a near-surface aquiclude. In areas with continuous permafrost, a small amount of water exchange occurs annually between the active layer and the uppermost layer of permafrost (Mackay, 1983), but chemical interaction between surface water and deeper earth materials is largely prevented (e.g., Michel and Fritz, 1982).
(1996: Table 1) working with data from electric logs included beds outcropping near Burkeville, Texas and the Castor Creek Member in western Louisiana in their contiguous Burkeville aquiclude. The current geological mapping should help clarify whether the clay-rich and sand-rich zones are localized and interfingering deposits, or are actually relatively continuous from western Louisiana through east Texas.
The underlying Esna shale is considered as the aquiclude, which separates the Eocene beds from the underlying aquifer (Nubia).
O municipio de Santa Maria produz cerca de 150 toneladas diarias de residuos solidos (estimativas da Secretaria Municipal de Gestao Ambiental) depositados a ceu aberto no denominado "Lixao da Caturrita", que se situa sobre rochas porosas e permeaveis, oriundas dos arenitos grossos da Formacao Santa Maria -- Membro Passo das Tropas e parte do Membro Alemoa (aquiclude).