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lava    音标拼音: [l'ɑvə]
n. 熔岩,火山岩

熔岩,火山岩

lava
n 1: rock that in its molten form (as magma) issues from
volcanos; lava is what magma is called when it reaches the
surface

Lava \La"va\ (l[aum]"v[.a]; 277), n. [It. lava lava, orig. in
Naples, a torrent of rain overflowing the streets, fr. It. &
L. lavare to wash. See {Lave}.]
The melted rock ejected by a volcano from its top or fissured
sides. It flows out in streams sometimes miles in length. It
also issues from fissures in the earth's surface, and forms
beds covering many square miles, as in the Northwestern
United States.
[1913 Webster]

Note: Lavas are classed, according to their structure, as
scoriaceous or cellular, glassy, stony, etc., and
according to the material of which they consist, as
doleritic, trachytic, etc.
[1913 Webster]

{Lava millstone}, a hard and coarse basaltic millstone from
the neighborhood of the Rhine.

{Lava ware}, a kind of cheap pottery made of iron slag cast
into tiles, urns, table tops, etc., resembling lava in
appearance.
[1913 Webster]

60 Moby Thesaurus words for "lava":
aa, abyssal rock, ash, ashes, basalt, bedrock, block lava, brand,
brash, breccia, calx, carbon, charcoal, cinder, clinker, coal,
coke, conglomerate, coom, crag, dross, druid stone,
festooned pahoehoe, fume, gneiss, granite, igneous rock, limestone,
living rock, magma, mantlerock, metamorphic rock, monolith,
pahoehoe, pillow lava, porphyry, pudding stone, reek, regolith,
rock, ropy lava, rubble, rubblestone, sandstone, sarsen, schist,
scoria, scree, sedimentary rock, shelly pahoehoe, slag, smoke,
smudge, smut, soot, stone, sullage, talus, tufa, tuff


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  • Lava - Wikipedia
    The solid volcanic rock resulting from subsequent cooling of the molten material is often also called lava A lava flow is an outpouring of lava during an effusive eruption (An explosive eruption, by contrast, produces a mixture of volcanic ash and other fragments called tephra, not lava flows )
  • Lava | Types, Composition, Temperature, Facts | Britannica
    Lava, magma (molten rock) emerging as a liquid onto Earth’s surface The term ‘lava’ is also used for the solidified rock formed by the cooling of a molten lava flow
  • What Is Lava Made Of? | Ask An Expert
    What Is Lava Made Of? Looking down at a cooled lava flow, you see a black, glassy, vesicular (“spongy”) rock The black color comes from the magnesium and iron-rich minerals, which are present in almost all types of lava flows The glassy appearance means the lava cooled quickly
  • LAVA STUDIO - The Worlds Most Advanced Amp.
    After your free trial, you can top up credits anytime to continue using the service Credits are pay-as-you-go $1 = 10 Credits at standard rate, with occasional bonus offers during top-ups Credits can also be used to redeem LAVA Lessons, giving you full flexibility between creation and learning
  • Types of Lava - Pahoehoe and Aa - Science Notes and Projects
    Learn about the types of lava including the forms of lava flow (pahoehoe and a'a) and the chemical composition based on silica content
  • LAVA Definition Meaning - Merriam-Webster
    The meaning of LAVA is molten rock that issues from a volcano or from a fissure in the surface of a planet (such as earth) or moon; also : such rock that has cooled and hardened
  • Watch: Lava soars 1,100 ft above Hawaii’s Kilauea in latest eruption
    Hawaii's Kilauea volcano, one of the world's most active, erupted again on 9 November shooting a massive fountain of lava into the air
  • What Is the Difference Between Magma and Lava? Magma vs Lava
    Learn the difference between magma and lava and explore their temperature, composition, and ability to form rocks
  • what is lava - en. meteorologiaenred. com
    what is lava Lava is formed when magma rises and comes out to the Earth's surface There are different types of lava flows depending on their composition and viscosity Lava has temperatures between 700°C and 1200°C, being denser than magma The main difference between lava and magma is their location: magma is underground, lava is on the
  • Latest Mobile Phones, Smartphones, Accessories - Lava Official Website
    LAVA Mobiles, an Indian mobile phone company offers a wide range of latest smartphones, feature phones, tablets and accessories with latest technologies at best price in India





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