1977
DOI: 10.1111/j.1752-1688.1977.tb02031.x
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FRESH GROUND WATER STORED IN AQUIFERS UNDER THE CONTINENTAL SHELF: IMPLICATIONS FROM A DEEP TEST, NANTUCKET ISLAND, MASSACHUSETTS1

Abstract: A deep water‐resource and stratigraphic test well near the center of Nantucket Island, about 40 miles (64 km) off the New England Coast, has encountered freshwater at greater depth than predicted by the Ghyben‐Herzberg principle. An uppermost lens of fresh‐water, which occupies relatively permeable glacial‐outwash sand and gravel to a depth of 520 ft. (158 m), is probably in hydrodynamic equilibrium with the present level of the sea and the height of the water table. However, two zones of freshwater between 73… Show more

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Cited by 37 publications
(27 citation statements)
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“… Kohout et al [1977] proposed that the presence of unusually fresh water within the permeable units of the Atlantic continental shelf could be attributed to meteoric recharge during Pleistocene sea level lowstands. During sea level lowstands, large portions of the continental shelf were exposed to meteoric recharge.…”
Section: Evidence Of Ice Sheet–aquifer Interactions From Intracratonimentioning
confidence: 99%
See 1 more Smart Citation
“… Kohout et al [1977] proposed that the presence of unusually fresh water within the permeable units of the Atlantic continental shelf could be attributed to meteoric recharge during Pleistocene sea level lowstands. During sea level lowstands, large portions of the continental shelf were exposed to meteoric recharge.…”
Section: Evidence Of Ice Sheet–aquifer Interactions From Intracratonimentioning
confidence: 99%
“…The lowering of sea level associated with the buildup of continental ice exposed large portions of the continental shelf to meteoric recharge [ Groen et al , 2000; Person et al , 2003]. Sea level lowstands and continental shelf sub–ice sheet recharge help to explain well‐documented occurrences of freshwater to brackish water plumes up to 100 km off the coast of New England [ Kohout et al , 1977; Person et al , 2003] and more typically 20–40 km offshore [ Meisler et al , 1984; Essaid , 1990; Voss and Andersson , 1993]. With dwindling supplies of potable groundwater in coastal areas, offshore freshwater plumes associated with Pleistocene sea level lowstands and ice sheet meltwaters may represent important freshwater resources (or brackish water for desalinization facilities) in arid regions of the world such as Saudi Arabia as well as near large urban centers in more temperate climates.…”
Section: Introductionmentioning
confidence: 99%
“…Age dating of groundwater in the coastal plains near Paramaribo and Jakarta shows that they are indeed of Late Weichselian age . Moreover, observations of groundwater heads of the deeper aquifers at Nantucket Island (Kohout et al, 1977) and Suriname (Groen, 1998) indicate stagnant conditions or even landward gradients, providing additional evidence that these offshore meteoric groundwater wedges are not related to active flow systems with onshore recharge.…”
Section: Offshore Groundwater Resources X=llv (4)mentioning
confidence: 99%
“…Due to their architecture and sediment composition, these margins are capable of accommodating good reservoirs, generally studied offshore for hydrocarbon purposes. It has been known for some time that such margins can also contain a large amount of fresh water (Cohen et al, 2010;Hathaway et al, 1979;Kohout et al, 1977), part of which can be released to the ocean via submarine groundwater discharge (Taniguchi et al, 2002). With more than 30% of the world population living in coastal areas, such systems are clearly of high interest for determining and managing viable water resources (Barlow, 2003;Bear et al, 1999).…”
Section: Introductionmentioning
confidence: 99%
“…Offshore, they form complex systems and their dynamics remain poorly known. Brackish to fresh waters have been found in boreholes several kilometers away from the coastline on the continental shelves and upper slopes (Austin et al, 1998;Hathaway et al, 1979; Scientifi c Committee on Oceanic Research, Land-Ocean Interactions in the Coastal Zone, 2004;Kohout et al, 1977;Malone and Martin, 2000;Manheim and Paull, 1981). In carbonate environments, offshore exploratory drillings have identifi ed fresh waters (salinity < 1 g/L) in deep karstic cavities (Scientifi c Committee on Oceanic Research, Land-Ocean Interactions in the Coastal Zone, 2004;Vernet, 2000).…”
Section: Introductionmentioning
confidence: 99%