Video: Yuav ua li cas cov arches hauv Arches National Park tsim?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Lub Slow Formation ntawm ib tug Arch
Hauv qab Arches National Park nyob ib txheej txheej ntsev, uas tau muab tso rau qee qhov 300 lab xyoo dhau los thaum thaj chaw ntawd yog ib feem ntawm lub hiav txwv dej hiav txwv. Thaum lub hiav txwv evaporated, nws tshuav ntsev deposits; qee thaj chaw tau sau ntau tshaj ib txhiab ko taw ntawm cov deposits.
Tsis tas li ntawd, cov arches tau tsim hauv Arches National Park li cas?
Lub Plaub Hlis 12, 1929
Kuj Paub, muaj pes tsawg arches nyob rau hauv Arches National Park hauv Utah thiab lawv tsim li cas? Nyob ntawd muaj tshaj 2,000 cov ntaub ntawv arches hauv lub tiaj ua si , xws li sliver-nyias kab nrib pleb mus rau qhov siab tshaj 300 ko taw (97 m). Yuav ua li cas ua yog li ntawd ntau arches daim ntawv ? Ua ntej, koj xav tau tus yog hom pob zeb. Sandstone yog ua los ntawm cov nplej ntawm cov xuab zeb cemented ua ke los ntawm cov zaub mov, tab sis tsis yog tag nrho cov xuab zeb yog cov ib yam.
Kuj nug, dab tsi yog cov arches hauv Arches National Park ua los ntawm?
Feem ntau ntawm cov formations ntawm Arches yog ua los ntawm mos liab sandstone tso 150 lab xyoo dhau los.
Nws yuav siv sij hawm ntev npaum li cas rau lub arch los tsim?
Tshaj tom ntej 75 lab xyoo , cov phab ntsa ntsev loj 2 mais siab, 3 mais dav, thiab tshaj 70 mais ntev tau tsim. Thaum kawg cov ntsev tsis ntws thiab ib mais-thick txheej ntawm pob zeb tau tso rau nws. Ces ib txhia 60 txog 70 lab xyoo dhau los tectonic rog ua rau qee lub pob zeb ntxaum kom khoov, ua ib lub dome.
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