Ib lub dike lossis dyke, hauv kev siv geological, yog ib daim ntawv ntawm pob zeb uas tau tsim nyob rau hauv pob zeb tawg ntawm lub cev pob zeb ua ntej. Dikes tuaj yeem yog magmatic lossis sedimentary hauv keeb kwm.
Yuav ua li cas lub dike?
Dikes yog ua los ntawm cov pob zeb tsis muaj pob zeb lossis pob zeb sedimentary. Igneous pob zeb yog tsim tom qab magma, kub, semi-kua tshuaj uas spews los ntawm volcanoes, cools thiab nws thiaj li ua tau khov. Magmatic dikes yog tsim los ntawm igneous pob zeb. Sedimentary pob zeb yog tsim los ntawm cov zaub mov thiab cov sediments uas tsim nyob rau lub sijhawm.
piv txwv ntawm lub dike yog dab tsi?
Ossipee Toj siab ntawm New Hampshire thiab Pilanesberg Roob ntawm South Africa yog ob qho piv txwv ntawm lub nplhaib dikes. Hauv ob qho xwm txheej no, cov zaub mov hauv lub dike tau nyuaj dua li cov pob zeb uas lawv nkag mus rau hauv.
Dike thiab sill yog dab tsi?
Ib tug sill yog ib daim ntawv intrusive concordant, txhais tau hais tias ib tug sill tsis txiav hla preexisting pob zeb txaj. … Hauv qhov sib piv, dike yog ib daim ntawv tsis sib haum xeeb, uas hla cov pob zeb qub. Sills yog pub los ntawm dikes, tshwj tsis yog nyob rau hauv qhov chaw txawv txawv uas lawv tsim nyob rau hauv ze li ntawm lub txaj ntsug txuas ncaj qha mus rau qhov chaw magma.
Puas yog lub pas dej nkag los lossis tawm tsam?
Magmatic dikes
Ib qho kev cuam tshuam yog ib qho igneous lub cev nrog rau qhov sib piv siab heev, uas txhais tau hais tias nws cov tuab feem ntau me dua li ob qhov ntev.. Thickness yuav txawv ntawm qhovsub-centimeter nplai rau ntau metres, thiab qhov ntev ntawm sab nraud tuaj yeem ncav cuag ntau mais.
