caldera


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caldera:

see cratercrater,
circular, bowl-shaped depression on the earth's surface. (For a discussion of lunar craters, see moon.) Simple craters are bowl-shaped with a raised outer rim. Complex craters have a raised central peak surrounded by a trough and a fractured rim.
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caldera

[kal′der·ə]
(geology)
A large collapse depression at a volcano summit that is typically circular to slightly elongate in shape, with dimensions many times greater than any included vent. It ranges from a few miles to 37 miles (60 kilometers) in diameter. It may resemble a volcanic crater in form, but differs in that it is a collapse rather than a constructional feature.
References in periodicals archive ?
Caldera hitched a chain used for emergencies to the trailer and the driver managed to pull it free from the tracks just 30 seconds before the train zoomed by, he said.
With the lung capacity of a whale five times the size of New York City, an "inhaling" (rising) caldera can lift 320 sq km (124 sq mi) of land as much as 30.
Borland is pleased to work with Caldera to offer developers a Linux environment targeted for their needs," said Frank Slootman, vice president of products at Borland Software.
Open UNIX 8 is an evolution of and maintains compatibility with the SCO(R) UnixWare(R) operating system acquired by Caldera.
Caldera Inc inherited DR-DOS from Novell Inc in July 1996.
Scientists know that the crust beneath the caldera is hot and may contain a reservoir of molten rock.
The intrusion covers about 215 square miles and its generalized edges appear to follow the outer edge of the interpreted caldera margins.
Kevin Caldera, who was 10 when his brother was killed, said the event forever shaped the rest of his life.
The combined Caldera solutions reduce our total cost of ownership," said Harry Lim, CEO at iMC Company.
In its March 1999 Statement of Facts, Caldera brought a complex case against Microsoft, arguing that for years the Redmond software company engaged in anti-competitive practices aimed at crushing the DR-DOS operating system, which now belongs to Caldera.
The town is pretty much nestled inside a caldera -- inside a volcano.
We are extremely pleased to have captured the sense of health and well-being that inspires hot tub owners," said Shelly Roberts, brand manager for Caldera Spas.