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LAVA
, an See also:Italian word (from See also:Lat. lavare, to See also:wash) applied to the liquid products of volcanic activity
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Streams of See also:rain-See also:water, formed by condensation of exhaled See also:steam often mingled with volcanic ashes so as to produce mud, are known as lava d'acqua, whilst the streams of molten See also:matter are called lava di fuoco
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The See also:term lava is applied by geologists to all matter of volcanic origin, which is, or has been, in a molten See also:state
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The magma, or molten lava in the interior of the See also:earth, may be regarded as a mutual See also:solution of various See also:mineral silicates, charged with highly-heated vapour, sometimes to the extent of super-saturation
.
According to the proportion of See also:silica, the lava is distinguished as " See also:acid " or " basic." The basic lavas are
II
See also:des See also:Cordeliers, which See also:dates from the end of the Toth See also:century or the beginning of the 15th, has some See also:fine See also:marble altars
.
See also:Half-a-mile below the See also:Pont Vieux is the beautiful 12th-century See also:
Among the numerous other See also:industries are See also:metal-See also:founding, See also:flour-milling, tanning, See also:dyeing, the making of boots and shoes, and the sawing of the marble quarried in the vicinity
.
There is trade in See also:grain
.
Laval is not known to have existed before the 9th century
.
It was taken by See also: |
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