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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
    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
  • Magma vs Lava: Key Differences, Formation Process and Volcanic Behavior
    Magma stays underground under high pressure, while lava reaches the surface and cools quickly Learn how their gas content and cooling rates create different rocks
  • Volleyball Done Differently | Los Angeles Volleyball Academy
    The Los Angeles Volleyball Academy (LAVA) is a youth and juniors club volleyball organization for girls and boys with multiple locations in and around Los Angeles, CA
  • Deschutes National Forest : Recreation Site - Lava River Cave . . .
    Lava River Cave, part of the Newberry National Volcanic Monument, offers self-guided exploration of a mile-long lava tube The cave was one of the first lava tubes to be discovered in Oregon and is the longest one in the state It takes approximately 1 5 hours to tour the entire cave (~2 2 miles roundtrip) Initial access descends 55 stairs to a combination of flat boardwalk, uneven surfaces
  • Californias Leader of Aggregate Concrete Products | Clearlake Lava
    For more than 50 years, Clearlake Lava has supplied contractors, municipalities, landscape yards, and other valued customers with quality aggregate and concrete products
  • Lava Flows - U. S. National Park Service
    And even ancient lava flows such as in Isle Royale and Shenandoah national parks still retain some volcanic features Lava flow: An outpouring of molten rock from a vent onto Earth's surface during an effusive volcanic eruption; also, the resulting solidified body of rock
  • Home | LAVA
    Come join us at one of our many events including investor round tables, syndication screenings, VC Check-Ins, or at one of our big annual events like Meet the VC, First Look SoCal, and the LAVA Awards
  • Anatomy of a Volcano - Volcanoes, Craters Lava Flows (U. S. National . . .
    Some types of volcanoes are exclusively made up of deposits of volcanic ash and other types of tephra Others are nearly wholly made of lava flows And yet others contain both pyroclastic deposits and lava flows, and possibly also lava domes, lahar, and or landslide deposits
  • 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





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