Lub continental nce siab npaum li cas?
Lub continental nce siab npaum li cas?

Video: Lub continental nce siab npaum li cas?

Video: Lub continental nce siab npaum li cas?
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Lub tsev kawm ntawv nyob rau hauv qab ntawm lub continental nce (3,500 m dej qhov tob ).

Yog li ntawd, qhov tob ntawm lub continental nce yog dab tsi?

Los ntawm lub hauv qab teb chaws Europe txoj kab nqes, lub bathymetric gradient txo qis continental nce mus rau hauv qab hiav txwv tob, qhov kawg thiab feem ntau thaj chaw. Qhov tob ntawm 3000-6000 m pom tshaj 74% ntawm cov dej hiav txwv bass nrog 1% tob.

Tsis tas li ntawd, lub teb chaws nce siab li cas? Continental nce daim ntawv raws li qhov tshwm sim ntawm peb cov txheej txheem sedimentary: huab hwm coj nkim, kev tso tawm los ntawm contour tam sim no, thiab ntsug nyob ntawm cov khoom siv yas thiab cov khoom siv biogenic.

Kuj kom paub, dab tsi nyob rau sab av loj nce?

Lobster, Dungeness crab, tuna, cod, halibut, ib leeg thiab mackerel tuaj yeem pom. Cov pob zeb tsis tu ncua yog lub tsev rau anemones, sponges, clams, oysters, scallops, mussels thiab coral. Loj dua tsiaj txhu xws li whales thiab hiav txwv vaub kib tuaj yeem pom hauv teb chaws Europe cov chaw txee thaum lawv ua raws txoj kev tsiv teb tsaws chaw.

Qhov tob tob tob npaum li cas?

Ib abyssal tiaj yog ib tug underwater tiaj ntawm tob dej hiav txwv pem teb, feem ntau pom nyob rau hauv qhov tob ntawm 3,000 meters (9,800 ft) thiab 6,000 meters (20,000 ft). Feem ntau nyob nruab nrab ntawm tus taw ntawm ib qho kev nce toj continental thiab ib nrab ntawm dej hiav txwv ridge, abyssal Plains npog ntau tshaj 50% ntawm lub ntiaj teb nto.

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