Cov kev ua volcanic hnyav li no yog qhov tsis tshua muaj nyob hauv Appalachian Roob thiab thoob plaws ntug dej hiav txwv East. GW Associate Professor ntawm Geology Richard Tollo thiab peb tus tub ntxhais kawm geology tab tom qhib qhov tsis meej ntawm qhov tawg thiab "hauv qab daus" pob zeb hauv qab.
Puas yog lub roob Appalachian roob hluav taws?
Cov kws tshawb fawb tau pom tias ntom ntom ntawm pob zeb hluav taws kubyuam kom Appalachian Toj siab khoov mus rau sab hnub tuaj hla Pennsylvania, New Jersey, thiab New York.
Puas yog tag nrho cov roob puas tau ua roob hluav taws?
Lub roob hluav taws tsim cov pob zeb volcanic xws li lava, uas yog magma uas tau txias rau saum npoo ntawm lub ntiaj teb. … Txawm li cas los xij, tsis yog txhua lub toj thiab roob yog roob hluav taws. Qee qhov yog cov yam ntxwv tectonic, tsim los ntawm lub roob roob, uas feem ntau tshwm sim ntawm cov ciam teb, ib yam li volcanism.
Puas yog Blue Ridge Roob roob hluav taws?
Feem ntau ntawm cov pob zeb uas ua rau Blue Ridge Toj siab yog ancient granite charnockites, metamorphosed volcanic formations, thiab sedimentary limestone.
Lub roob Appalachian tau tsim li cas?
Dej hiav txwv continued mus txog, txog 270 lab xyoo dhau los, cov teb chaws uas yog poj koob yawm txwv tral mus rau North America thiab Africa sib tsoo. Cov pob zeb loj loj tau raug thawb rau sab hnub poob raws ntug ntawm North America thiab muab tso raulos ua cov roob uas peb tam sim no paub tias yog Appalachians.
