Video: Yuav ua li cas yog ib tug igneous dike?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Igneous dikes daim ntawv Raws li magma raug thawb los ntawm cov pob zeb ntsug ntsug, qhov twg nws mam li txias thiab crystallizes. Lawv daim ntawv nyob rau hauv sedimentary, metamorphic thiab igneous pob zeb thiab tuaj yeem yuam kom qhib cov pob txha tawg thaum lawv txias.
Nyob rau hauv tas li ntawd, dab tsi yog ib tug igneous dike?
Dike , kuj hu ua dyke los yog geological dike , nyob rau hauv geology, tabular los yog sheetlike igneous lub cev uas feem ntau oriented vertically los yog steeply inclined mus rau lub txaj ntawm preexisting intruded pob zeb; zoo sib xws lub cev taw qhia thaum uas tig mus rau lub txaj ntawm cov pob zeb enclosing yog hu ua sills.
Qhov thib ob, qhov txawv ntawm lub dike thiab sill yog dab tsi? A sill yog ib daim ntawv intrusive concordant, txhais tau tias a sill tsis txiav hla preexisting pob zeb txaj. Hauv sib, a dike yog ib daim ntawv tsis sib haum xeeb, uas txiav hla cov pob zeb qub. Sills noj los ntawm dikes , tsuas hauv txawv qhov chaw uas lawv tsim hauv ze li ntsug txaj txuas ncaj qha mus rau magma qhov chaw.
Qhov thib ob, lub dike zoo li cas?
Ib geological dike yog lub cev tiaj tus ntawm pob zeb uas hla lwm hom pob zeb. Dikes txiav hla lwm hom pob zeb ntawm ib lub kaum sab xis sib txawv dua li lwm cov qauv. Dikes feem ntau pom tau vim tias lawv nyob ntawm lub kaum sab xis sib txawv, thiab feem ntau muaj xim sib txawv thiab kev ntxhib los mos dua li pob zeb nyob ib puag ncig lawv.
Dab tsi yog dike nyob rau hauv lub roob hluav taws?
Dikes yog imaginable li cov leeg ntawm ib roob hluav taws , txoj kev ntawm nce magma. A dike yog hu ua - feem ntau ntau dua los yog tsawg dua ntsug- tiaj tus, daim ntawv-zoo li magma lub cev uas txiav unconformingly los ntawm cov qub pob zeb los yog sediments. Feem ntau dikes tuaj yeem piav raws li kev tawg rau hauv qhov twg magma intrudes lossis los ntawm qhov uas lawv tuaj yeem tawg.
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