Qhov loj ntawm lub cinder cone volcano yog dab tsi?
Qhov loj ntawm lub cinder cone volcano yog dab tsi?

Video: Qhov loj ntawm lub cinder cone volcano yog dab tsi?

Video: Qhov loj ntawm lub cinder cone volcano yog dab tsi?
Video: Tshuaj theem vim li cas thiaj tau nqi ?/ Siv kho mob dab tsi?/paris polyphylla use for? 2024, Kaum ib hlis
Anonim

Cinder cone volcanoes me me, feem ntau tsuas yog hais txog 300 feet (91 meters) siab thiab tsis nce siab tshaj 1,200 feet (366 meters). Lawv tuaj yeem tsim nyob rau lub sijhawm luv luv ntawm ob peb lub hlis lossis xyoo.

Hauv qhov no, qhov zoo li cas ntawm lub roob hluav taws cinder cone?

Cinder cones yog hom yooj yim tshaj plaws roob hluav taws . Lawv yog tsim los ntawm hais thiab blobs ntawm congealed lava ejected los ntawm ib tug vent. Raws li cov roj-them lava tau tshuab ua rau huab cua hnyav, nws tawg mus rau hauv cov khoom me me uas khov thiab poob zoo li cinders nyob ib ncig ntawm lub qhov cua kom tsim ib ncig los yog oval khob khob.

Tom qab ntawd, lo lus nug yog, qhov luaj li cas ntawm daim thaiv hluav taws xob hluav taws xob? Cov no daim thaiv feem ntau yog nyob nruab nrab ntawm 100 thiab 600 km thoob plaws, nrog qhov siab li ntawm 0.3 txog 5.0 km. Qhov loj tshaj daim thaiv Txawm li cas los xij, muaj ntau dua 700 km hauv txoj kab uas hla thiab mus txog 5.5 km hauv qhov siab . Rau kev siv, Mauna Loa yog ~ 120 km thoob plaws ntawm nws lub hauv paus, thiab nws muaj tag nrho qhov siab ntawm ~ 8 km (los ntawm hiav txwv pem teb).

Ib yam li ntawd, qhov nruab nrab qhov dav ntawm lub roob hluav taws cinder cone yog dab tsi?

Morphometry. Hauv ntiaj teb, ntawm nruab nrab lawv basal txoj kab uas hla yog 800 m (0.25–2.5 km), ntim yog 40 × 106 m3, thiab spatial ntom yog 0.03-0.5 khob khob /km2 (Hoo 1979b, 1980a). Lawv qhov siab tuaj yeem ncav cuag li 100 m. Txoj kab nqes ntawm flanks ncav cuag 30 °.

Dab tsi yog qhov viscosity ntawm cinder cone volcano?

Spheroidal thiab spindle-puab foob pob muaj ntau ntawm cinder cones . Tsis zoo li qhov hnyav heev tawg uas tsim loj stratovolcanoes, cinder cones form thaum qis- viscosity lava nrog ntau cov roj erupts, feem ntau raws li cov dej ntws. Lava tej zaum yuav spewed pua pua ntawm cov huab cua.

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