Puas yog cov yam ntxwv ntawm lub roob hluav taws kub hnyiab?

Cov txheej txheem:

Puas yog cov yam ntxwv ntawm lub roob hluav taws kub hnyiab?
Puas yog cov yam ntxwv ntawm lub roob hluav taws kub hnyiab?
Anonim

Cinder cones yog tus cwj pwm los ntawm lub khob hliav qab ntawm cov lava tawv, tshauv thiab tephra nyob ib ncig ntawm ib lub qhov cua. … Fragmented tshauv thiab lava ua ib lub khob nyob ib ncig ntawm lub qhov cua thaum lawv txias thiab tawv. Cinder cones feem ntau pom nyob rau ntawm qhov chaw ntawm cov roob hluav taws loj dua thiab muaj sab laug thiab nrog lub qhov tsua loj loj.

3 qhov tseeb ntawm cinder cone volcanoes yog dab tsi?

Cinder Cones

  • Cinder cones yog hom kab hluav taws xob uas yooj yim tshaj plaws thiab ntau tshaj plaws.
  • Cinder cones tsim dhau sijhawm los ntawm cov khoom los ntawm qhov hluav taws kub.
  • Cinder cones yeej tsis loj thiab muaj txoj kab nqes ntawm ib ncig ntawm 33 degrees.
  • Lawv tuaj yeem yog cov roob hluav taws tshiab, lossis lawv tuaj yeem tsim dhau lub qhov cua ntawm lub roob hluav taws uas twb muaj lawm.

Koj tuaj yeem piav qhia tus yam ntxwv ntawm cinder cone composite thiab thaiv hluav taws xob li cas?

Zaj Lus Qhia

volcanoes muaj siab, ntxhab cones uas ua rau tawg tawg. Shield volcanoes tsim loj heev, maj mam sloped mounds los ntawm effusive eruptions. Cinder cones yog qhov tsawg tshaj plaws volcanoes thiab tshwm sim los ntawm tsub zuj zuj ntawm ntau me me fragments ntawm ejected khoom.

Tus yam ntxwv ntawm txhua hom roob hluav taws yog dab tsi?

Hom hluav taws kub - sib xyaw thiab thaiv

  • Acidic lava, uas yog khov heev (nqaij).
  • ntsib sab li cov lava tsis ntws deb heev ua ntej nws khov kho.
  • Lwm txheej ntawm tshauv thiab lava. Rauvim li no, lawv tseem hu ua stratovolcanoes. Strato txhais tau tias txheej.
  • Vim kev kub ntxhov.
  • Lub sijhawm ntev ntawm kev tawg.

Dab tsi yog qhov cim ntawm lava ntws thiab cinders?

Lawv yog tus cwj pwm los ntawm tus duab conical, nrog rau sab. Lawv tsis tshua ncav cuag qhov siab tshaj 1000 ft. Lawv feem ntau muaj ib qho, loj, nruab nrab qhov cua ntawm qhov ua siab tshaj. Lawv yog tsim los ntawm cov khoom siv pyroclastic fragmented, hu ua tephra.

Pom zoo: