cuesta


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cuesta

(kwĕs`tə), asymmetric ridge characterized by a short, steep escarpment on one side, and a long, gentle slope on the other. The steep side exposes the edge of erosion-resistant rock layers that form the cuestas. They are usually formed by erosion in plains areas underlain by gently dipping sedimentary rock layers. Cuestas have a more gentle dip than similar structures called hogbackshogback,
sharp-crested ridge with steep slopes on both sides, formed by the erosion of steeply tilted rock layers. Hogbacks are commonly formed along the eroded flanks of large, tightly folded anticlines and synclines (see fold).
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. Along the U.S. Atlantic and Gulf coastal plains are found a series of low subdued cuestas composed of seaward-dipping and poorly cemented Cretaceous and Tertiary sandstones, while the intervening lowlands are underlain by impermeable clays. These conditions produce ideal structures for artesian water supply systems, which have been extensively tapped by coastal cities. A well-known example of a cuesta is the Niagara cuesta that runs westward across W New York State and Ontario, then swings northward, forming the peninsula between Lake Huron and Georgian Bay, and finally curves southward, forming the Door Peninsula between Green Bay and Lake Michigan. Following withdrawal of the last Pleistocene ice sheet about 10,000 years ago, Niagara Falls first formed where the Niagara River crosses the Niagara cuesta at Lewiston, N.Y., and Queenston, Ont. Since then, the falls have migrated nearly 7 mi (11 km) southward as a result of undercutting and rockfall, leaving the steep-walled Niagara Gorge to mark its path.

cuesta

[′kwes·tə]
(geography)
A gently sloping plain which terminates in a steep slope on one side.
References in periodicals archive ?
Implementing agency : Municipalidad de san rafael pie de la cuesta, san marcos, Canton concepcion, san rafael pie de la cuesta, san marcos Tel: 77707304 Fax: 77707124 Email: munisanrafael@hotmail.
The temperature was kept constant at 27[degrees]C, salinity at 37 % and photoperiod at 12 h light and 12 h dark (Al-Aidaroos 2005; Cuesta et al.
Cuesta said "we have to be vigilant about increasing food prices because we have known for a long time that conflict leads to food insecurity, but we have now evidenced that food insecurity can also lead to conflict so we have to be vigilant that these food price increases, if they are to continue, we may have consequences on the political instability especially in Africa and South and East Asia.
Cuesta said that D-az was a known political assassin, a marksman and had joined the anti-Castro struggle that so many exiles felt Kennedy had betrayed.
Cuesta has been working closely with Xenith Consulting Pty Ltd ("Xenith"), a specialist mining consultancy based in Brisbane, to complete the Concept Mining Study.
It's the women's team, though, not the Glendale men, winner 15 of the past 18 years, that was in the spotlight Tuesday in the WSC finals at Cuesta Fairbanks Cross Country Course.
Reese spent 15 years in the human resources department of Ticor Title/Chicago Title before moving to Cuesta Title.
There are guys out there like Big John who are predatory but who are also pillars of the community," says Cuesta.
Goose pimples tingle the skin of Leopoldo Cuesta when he holds the samurai sword his father received during World War II as a gift from Japanese troops who signed a cease-fire pact with U.
to move to the Central Coast, particularly companies interested in forming strategic partnerships with Cal Poly State University and Cuesta College," said Dave Spaur, president and CEO of the Economic Vitality Corporation of San Luis Obispo County.
Sydney, Australia, Jan 31, 2013 - (ABN Newswire) - Cuesta Coal Limited (ASX:CQC) are pleased to provide the December Quarterly Activities & Cashflow Report.
Quite wisely, director Michael Cuesta and his co-writer Steve Ryder work their way up to this aspect of the story slowly and deliberately, taking care to set up a convincing suburban wasteland (the film's title is the acronym for the Long Island Expressway) before springing the elements that garnered the film an NC-17 rating.