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• CMI: Aquifers Group.
• The CMI Aquifers Group is one of the four major groups under the Carbon Mitigation Initiative.   The Aquifers Group is focused on evaluation of deep saline aquifers for long-term storage of CO2.   This website provides general information about the researchers in the Aquifers Group, and about our research activities.

• Indiana Aquifers.
• Glaciers during this period pushed down material that created aquifers in their present location. Notice the similarities between Indiana's aquifers and the Indiana groundwater availability map. ...

• Principal aquifers and representative borehole locations.

• Aquifers Material.
• Aquifers may be separate by layers of rock or clay that do not allow water to move through it.
•   Cracks in the basalt and the layers between flows form aquifers. ...
• In the river valleys there are layers of sand and gravel forming aquifers, sometimes separated by layers of clay. ...
• Bedrock with connected cracks forms aquifers in many parts of the state, especially in the hills above river valleys. ...
• Return to Groundwater and Aquifers.

• aquifers.
• aquifers is a valid word in this word list, but no definition for it has been loaded yet.
• The word "aquifers" uses 8 letters: A E F I Q R S U.
• No direct anagrams for aquifers found in this word list.
• Adding one letter to aquifers does not form any other word in this word list.
• Words within aquifers not shown as it has more than seven letters. ...
• Try a search for aquifers in these online resources (some words may not be found): Encarta World Dictionary - OneLook Dictionaries - Merriam-Webster - Google Search Each search will normally open in a new window.
• List all words starting with aquifers, words containing aquifers or words ending with aquifers.
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• Aquifers on National Atlas Map Browser .
• Aquifers' Data.
• Unconsolidated and semiconsolidated sand and gravel aquifers.
• The principal water-yielding aquifers of North America can be grouped into five types: unconsolidated and semiconsolidated sand and gravel aquifers, sandstone aquifers, carbonate-rock aquifers, aquifers in interbedded sandstone and carbonate rocks, and aquifers in igneous and metamorphic rocks. This map of unconsolidated and semiconsolidated sand and gravel aquifers in the United States shows the shallowest principal aquifer. ...
• Unconsolidated sand and gravel aquifers can be grouped into four categories: basin-fill aquifers, which also are called "valley-fill aquifers"; blanket sand and gravel aquifers; glacial-deposit aquifers; and stream-valley aquifers which are of generally small extent and not mapped. ... The hydraulic conductivity of the aquifers is variable, depending on the sorting of aquifer materials and the amount of silt and clay present, but generally it is high. Aquifer thickness ranges from a few meters or tens of meters in the blanket sands along the eastern Atlantic coast of the United States to several hundred meters in the basin-fill aquifers of the southwestern United States. The unconsolidated sand and gravel aquifers are susceptible to contamination because of their generally high hydraulic conductivity. Ground water in these aquifers flows along relatively short flow paths typical of local flow systems; however, all of the basin-fill aquifers have intermediate flow systems, and the thick basin fill of California's Central Valley aquifer system has a regional flow system. ...
• Basin-fill or valley-fill aquifers were deposited in depressions formed by faulting or erosion or both. Fine-grained deposits of silt and clay form local confining units in these aquifers, and thick sequences of the unconsolidated deposits become more compact and less permeable with depth. Most basins are bounded by low-permeability rocks, but some in the western United States are hydraulically connected to adjacent carbonate-rock aquifers. Some basin-fill aquifers, such as those in the Central Valley aquifer system of California and in parts of Arizona, have supplied large amounts of water for irrigation and other uses. ...
• Widespread, blanket-like deposits of sand and gravel form aquifers in lowland areas of Alaska, atop lava plateaus in Washington, along the Atlantic and eastern Gulf coasts, along part of the lower reaches of the Mississippi River, and in the High Plains. These aquifers mostly consist of alluvial deposits. ...

• Groundwater and aquifers.
• Earth Sciences Sector > Priorities > Strong and safe communities > Urban GeologyGeomap VancouverGroundwater and aquifers .
• Aquifers are bodies of sediment or rock that are saturated and sufficiently permeable to provide subsurface water to wells. Most groundwater in the Fraser Valley is derived from aquifers in modern and Ice Age sediments. These aquifers are a major source of high-quality water for drinking and other uses. The British Columbia Ministry of Environment, Lands and Parks has classified 71 aquifers in the Fraser Valley according to current levels of use and vulnerability to contamination. Almost two-thirds of the aquifers are shallow and can be easily contaminated by downward infiltration of waters laced with agricultural fertilizers and pesticides, manure, septic effluent, or gas and oil from leaking storage tanks. The most heavily utilized of these highly vulnerable aquifers occur in the Abbotsford and Langley/Brookswood areas. Less developed, but highly vulnerable aquifers occur in sediments below the floodplain and delta of the Fraser River. Deeper aquifers overlain by silts, clays, or tills of low permeability are less vulnerable to contamination. The most important of these deep aquifers occur in the Aldergrove area; others underlie the uplands of Vancouver, Burnaby, Surrey, and Langley, and the lowland of the Nicomekl and Serpentine rivers. ... The thin soil cover over these bedrock aquifers makes them highly vulnerable to contamination. Some aquifers, in both sediments and bedrock, have poor water quality due to elevated levels of naturally occurring substances such as chloride, iron, sulphur, and fluoride.
• Aquifers not assessed.
• Aquifers in Bedrock.
• Aquifers in Sediment.

• Fractured-Rock Aquifers: Understanding an Increasingly Important Source of Water .
• Fractured-rock aquifers in the United States provide water for domestic use, locations for isolating hazardous and toxic waste, and sites for foundations and infrastructure.
• Fractures form complex paths for fluid movement in fractured-rock aquifers. ...
• A long record of contributions exists in understanding ground-water movement in sand and gravel aquifers; historically, these aquifers were easily accessible and the first to be investigated. With increased demand for water, communities are looking to fractured-rock aquifers, where water moves through fractures in the rock. ... Understanding ground-water flow through fractured-rock aquifers is an area of ground-water research that will have increasing importance to our Nation over the coming years.
• Many areas of the United States rely on fractured-rock aquifers for water supply. In addition, areas experiencing population growth in the Northeast, Southeast, and mountainous regions of the West are likely to rely heavily on water supplies from fractured-rock aquifers. ... Land-use practices affect water quality in fractured-rock aquifers, particularly where ground water flows rapidly through fractures. Fractured rock aquifers also are viewed as potential repositories for radioactive and other types of waste, where it is desirable for the ground water to be inaccessible or move at a very slow rate.
• Throughout the United States, low-level radioactive waste, landfills, septic tank effluent, and other potential sources of ground-water contamination are frequently close to fractured-rock aquifers.
• Where do fractures produce enough water for a production well? Where is the ground water recharged and what land use activities affect its quality? Are the availability and quality of the water supply sustainable? Similar questions also arise in characterizing sites of contaminated ground water and assessing fractured-rock aquifers as potential repositories for various types of waste.
• The USGS conducts research to develop field techniques and interpretive methods for characterizing fluid movement and chemical migration in fractured-rock aquifers to answer such questions. USGS research focuses on characterizing ground-water flow in fractured-rock aquifers over distances from meters to kilometers. ... Ground-water resource managers and geological and structural engineers are now applying the results of this research in fractured-rock aquifers throughout the United States.
• Numerous Federal and State agencies that work cooperatively with the USGS have attended USGS demonstrations of techniques used to characterize ground-water flow in fractured-rock aquifers.

• New York State Aquifers.
• Identification_Information: Citation: Citation_Information: Originator: NYS Department of Health, Bureau of Public Water Supply Protection (Scarlett Messier, Jane Thapa, Tom Hart) Publication_Date: 200104 Title: New York State Aquifers Edition: 2. ... zip> Description: Abstract: The data set consists of aquifer polygons or regions depicting unconsolidated aquifers in New York State, excluding Long Island. Aquifers are separated by and include attributes for potential yield ranges and confinement indicator. ... Completeness_Report: Aquifers presented in this data set do not include all aquifers in New York State. Omissions include aquifers on Long Island, and aquifers below the original LLRW minimum mapping unit criterion of less than 1 square mile that was applied to the initial digital capture of features shown on the USGS maps. ... In this newest edition, some omitted aquifers were added. ... 257222101 Entity_and_Attribute_Information: Overview_Description: Aquifers are listed according to three types (Aquifer_type: confined, unconfined, unknown). ... For confined aquifers (not linked directly to surface flow), only a single range yield is provided (5 ->500) with no further information. For unconfined aquifers, potential yield is refined into the two categories of 10 - 100 and >100. ... For aquifers of unknown aquifer type, comments include geologic descriptors used in the original data to identify a probable aquifer location. Geologic descriptor values include: L - Lacustrine or eolian deposits, fine to medium sand that probably yields less than 10 gallons per minute; G - kame, kame terrace, kame moraine, outwash, or alluvium, sand and gravel of unknown thickness or saturation where yield potential is greater when streams are present; M - Moraine, mostly till and lacustrine deposits (very fine sand, silt and clay deposits) capped in some places with unsaturated sand and gravel with thin scattered confined aquifers of sand and gravel in some places; U - confined aquifer, areas of lacustrine deposits or till, possibly underlain by sand and gravel aquifers where depth and saturated thickness of aquifer not investigated.

• TITLE: FLORIDAN AQUIFERS Geodataset Name: AQUIP Geodataset Type: SHAPE Geodataset Feature: POLYGON   .
• GENERAL DESCRIPTION: This dataset shows the principal aquifers that supply ground water to the State of Florida. ... Aquifers are shown as polygons. ...
• Area The size of the shape in coverage units Perimeter The perimeter of the shape in coverage units Rock_name The name of the permeable geologic material that composes the aquifer -Unconsolidated Sand & Gravel Aquifers: Formations composed of loose asand and gravel. -Semiconsolidated Sand Aquifers: Formations composed of partially solidified sand. -Carbonate-rock Aquifers: Formations composed of limestone and (or) dolomite. Rock_type The code number corresponding to the rock_name 0: Null value 100: Number for unconsolidated sand and gravel aquifers. 200: Number for semiconsolidated sand aquifers. 400: Number for carbonate-rock aquifers. ... Rocks that are generally poorly permeable but locally may contain productive aquifers. ...
• USER NOTES: The aerial extent of the aquifers, as shown in this data set, represents the area in which a named aquifer is the shallowest of the principal aquifers. These aquifer areas are not necessarily the only areas in which ground water can be withdrawn, for two reasons: 1) The aquifers shown may have a larger areal extent than is represented here. ... An aquifer may extend beyond the area shown, but be overlain by one or more other aquifers, and (or) low- permeability material. ... Major alluvial aquifers that occur along main watercourses are not shown. Significant unconsolidated sand and gravel aquifers, that are not indicated in this data set but are important sources of water, may occur locally in glaciated regions. The user of this data set is advised that to get complete information regarding areas that serve as sources of water, more information about surficial aquifers needs to be obtained, particularly in glaciated areas. ...

• Carbon Dioxide Sequestration in Saline Aquifers.
• Experimental scheme (drafted by Bruce Rogers, WRCMG) for determining the solubility of carbon dioxide in water and brines, using a fixed-volume reaction cell (labeled "Pressure Vessel" in diagram) and rotating furnace to simulate the pressures and temperatures of deep aquifers. ...
• This group within WRCMG hopes to short-circuit the emission of CO2 into the atmosphere by its geologic sequestration in deep-saline aquifers. In the sequestration process, CO2 captured from powerplant or other emissions would be pumped into deep-saline aquifers to isolate it from the atmosphere. The depths of these aquifers provide pressures high enough to keep the CO2 supercritical—in a single fluid phase with physical properties similar to those of a liquid rather than a gas. ... These aquifers are unsuitable as resources for drinking water.
• This process, which is one of several proposed disposal mechanisms, has the advantages of permanence (by fixation of CO2 into carbonate minerals) and high capacity—there are many deep-saline aquifers of broad extent throughout the country. ... The WRCMG study involves experiments to determine the solubility of CO2 in brines and the reactions between supercritical CO2 and fluids and host rocks that are characteristic of deep-saline aquifers.
• A rock sample and carbon-dioxide-charged brine are placed in the collapsible gold bag and subjected to temperatures and pressures typical of deep aquifers. ...
• CO2 in Saline Aquifers.

• Aquifers.
• Georgia's Ground Water Resources - information on the formation, location, and use of the ground water and aquifers in Georgia.
• Katahdin to the Sea - learn about different bodies of water in Maine, from streams, ponds, and bogs to estuaries, aquifers, tide pools, and even the Gulf of Maine.
• USGS: Ground-water Aquifers - facts, a glossary of terms, and diagrams of the geological formations known as aquifers that store and/or transmit water to wells and springs.

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