Video: Yuav ua li cas cov ntaub ntawv nyob rau hauv cov cheeb tsam uas oceanic daim hlau diverge thiab tshiab seafloor yog tsim abyssal plains continental txee continental txoj kab nqes m
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Cov continental txoj kab nqes thiab nce yog hloov pauv ntawm crustal hom, thiab cov abyssal tiaj yog underlain los ntawm mafic dej hiav txwv pob zeb. Oceanic ridges yog diverging phaj ciam teb qhov twg dej hiav txwv tshiab lithosphere yog tsim thiab dej hiav txwv trenches yog converging phaj ciam teb qhov twg dej hiav txwv lithosphere yog subducted.
Ib yam li ntawd, cov ntaub ntawv dab tsi hauv thaj chaw uas cov phiaj xwm dej hiav txwv sib txawv thiab tsim cov seafloor tshiab?
Divergent ciam teb nyob rau hauv nruab nrab ntawm lub dej hiav txwv pab txhawb rau dej hiav txwv sib kis. Raws li daim hlau ua ntawm dej hiav txwv crust rub sib nrug, ib tug tawg nyob rau hauv lub dej hiav txwv pem teb tshwm. Magma ces oozes los ntawm lub mantle mus sau nyob rau hauv qhov chaw ntawm lub daim hlau , tsim ib tug tsa ceg hu ua ib nrab- dej hiav txwv qaum.
Tom qab ntawd, lo lus nug yog, dab tsi yog ob qhov chaw ntawm sediments npog lub abyssal plains? Abyssal plains tshwm sim los ntawm daim pam ntawm qhov qub tsis sib xws ntawm dej hiav txwv crust los ntawm nplua-grained sediments , mas av nplaum thiab silt. Ntau qhov no sediment yog tso los ntawm turbidity tam sim no uas tau channeled los ntawm continental margins raws submarine canyons mus rau hauv dej tob.
Tsuas yog li ntawd, yuav ua li cas mid hiav txwv ridges tsim ntawm divergent tectonic daim hlau?
A nruab nrab - ntug dej hiav txwv los yog nruab nrab - ntug hiav txwv dej yog lub roob toj roob hauv pes, tsim los ntawm phaj tectonics . Qhov no uplifting ntawm lub dej hiav txwv pem teb tshwm sim thaum convection tam sim no nce hauv lub mantle hauv qab dej hiav txwv crust thiab tsim magma qhov twg ob tectonic daim hlau ntsib ntawm a sib txawv ciam teb.
Nyob qhov twg mid dej hiav txwv ridges nyob?
Nruab nrab - dej hiav txwv ridges tshwm sim raws divergent phaj ciam teb, qhov twg tshiab dej hiav txwv pem teb yog tsim raws li lub ntiaj teb tectonic daim hlau sib nrug. Raws li cov phiaj xwm sib cais, cov pob zeb molten nce mus rau hauv hiav txwv, ua rau lub roob hluav taws loj heev ntawm basalt.
Pom zoo:
Dab tsi yog txheej txheem hu ua uas tsim cov dej hiav txwv tshiab hauv pem teb los ntawm diverging daim hlau?
Seafloor kis tau tus txheej txheem uas tshwm sim nyob rau hauv nruab nrab ntug dej hiav txwv ridges, qhov twg tshiab dej hiav txwv crust yog tsim los ntawm volcanic kev ua si thiab maj mam txav deb ntawm lub ridge
Txoj kev faib cov ntaub ntawv twg muab cov ntaub ntawv sib npaug ntawm cov ntaub ntawv lossis cov kev tshuaj xyuas hauv txhua chav kawm cov ntaub ntawv?
Quantile. txhua chav kawm muaj cov yam ntxwv sib npaug. Ib qho kev faib tawm ntau yog zoo haum rau cov ntaub ntawv faib tawm. Quantile muab tib tus lej ntawm cov ntaub ntawv muaj nuj nqis rau txhua chav kawm
Yuav ua li cas koj sau txoj kab nqes nqes intercept daim ntawv nyob rau hauv tus qauv daim ntawv?
Standard form yog lwm txoj hauv kev los sau daim ntawv nqes hav-intercept (as opposed to y=mx+b). Nws sau li Ax+By=C. Koj tuaj yeem hloov daim ntawv nqes hav-intercept rau cov qauv zoo li no: Y=-3/2x + 3. Tom ntej no, koj cais qhov y-intercept (qhov no nws yog 2) zoo li no: Ntxiv 3/2x rau txhua sab ntawm kab zauv kom tau qhov no: 3/2x + y = 3
Lub cheeb tsam dej hiav txwv twg muaj biodiversity loj tshaj plaws thiab lub neej dej hiav txwv tshaj plaws?
Epipelagic cheeb tsam nthuav tawm ntawm qhov chaw mus txog 200m nqes. Nws tau txais ntau lub hnub ci thiab yog li muaj cov biodiversity tshaj plaws nyob rau hauv dej hiav txwv. Nws tseem hu ua thaj tsam twilight vim tias lub teeb txwv tsis pub muaj peev xwm lim tau los ntawm cov dej no
Yuav ua li cas koj sau ib qho kev sib npaug nyob rau hauv txoj kab nqes intercept daim ntawv rau ib lub rooj?
Siv qhov sib npaug y = mx + b thiab ntsaws rau hauv tus nqi m (m = 1) thiab ib khub ntawm (x, y) kev tswj hwm ntawm lub rooj, xws li (5, 3). Ces daws rau b. Thaum kawg, siv qhov m thiab b qhov tseem ceeb koj pom (m = 1 thiab b = -2) los sau cov kab zauv