2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Lwm qhov sib txawv loj ntawm glacials thiab interglacials yog cov kev hloov hauv dej hiav txwv. Thaum lub sij hawm glacial, cov dej hiav txwv poob qhov nruab nrab ntawm 100m raws li cov dej evaporated thiab khaws cia rau hauv cov glaciers loj hlob thiab cov ntawv dej khov. … Glacials keeb kwm nyob qhov twg los ntawm 7 mus rau 9 npaug ntev dua li interglacials.
Qhov txawv ntawm glacial thiab interglacial yog dab tsi?
Lub sijhawm glacial (xws li glacial lossis glaciation) yog ib ntus ntawm lub sijhawm (ntau txhiab xyoo) hauv lub hnub nyoog dej khov uas tau cim los ntawm qhov txias dua thiab cov dej khov ua ntej. Interglacials, ntawm qhov tod tes, yog sijhawm huab cua sov dua ntawm lub sijhawm glacial. Lub Sijhawm Glacial Kawg xaus li 15,000 xyoo dhau los.
Muaj pes tsawg lub sijhawm glacial nyob rau 800000 xyoo dhau los?
Cov kws tshawb fawb tau txheeb pom 11 lub sijhawm sib txawv sib txawv dhau 800,000 xyoo dhau los, tab sis lub sijhawm interglacial peb tab tom ntsib tam sim no yuav kav ntev heev. Cov qauv kev nyab xeeb thoob ntiaj teb tau dhau los ua qhov zoo tshaj plaws hloov pauv hauv yav dhau los 600, 000 txog 1.2 lab xyoo.
Yuav muaj pes tsawg lub sijhawm glacial nyob rau 100000 xyoo dhau los?
Txawm li cas los xij, lub sijhawm 800, 000 xyoo dhau los, cov nplooj ntawv glacial loj tau tshwm sim tsawg dua - txog txhua 100,000 xyoo, Sandstrom tau hais. Qhov no yog li cas 100,000-xyoo lub voj voog ua haujlwm: Cov nplooj ntawv dej khov loj hlob txog li 90,000 xyoo thiab tom qab ntawd siv li 10,000 xyoo losvau thaum lub caij sov.
Puas muaj pes tsawg interglacials thiab dej khov muaj nyob rau hauv 450000 xyoo dhau los?
Four thawm glacial-interglacial cycles tshwm sim thaum 450,000 xyoo dhau los.
Pom zoo:
Yuav ua li cas nyeem cov qauv khov khov nab kuab?
Ob hom hom yog nyeem los ntawm kab saum toj pib ntawm sab laug tes, ua haujlwm hla kab ua ntej txav mus rau sab laug tes ntawm kab thib ob. Australian khov hom siv cov cim "alpha angle" - nrog ob kab ntawm plaub lub cim txhua. Koj nyeem hom Standardbred li cas?
Peb puas tuaj yeem haus cov dej khov nab kuab?
Txawm hais tias dej raisins suav hais tias muaj kev nyab xeeb rau cov neeg laus feem ntau, qee tus neeg yuav tsum txwv tsis pub noj. Txawm tias tsis tshua muaj, raisins yuav ua rau muaj kev tsis haum tshuaj (8). Cov txiv hmab txiv ntoo qhuav xws li raisins kuj feem ntau muaj cov calories ntau dua, carbohydrates, thiab cov suab thaj ntau dua li cov txiv hmab txiv ntoo tshiab.
Puas pom cov dej khov nab kuab?
Icebergs feem ntau pom ze Antarctica thiab hauv North Atlantic Dej hiav txwv ze Greenland. icebergs feem ntau pom nyob qhov twg? Feem ntau cov dej khov nab kuab nyob rau sab qaum teb Hemisphere tawg tawm ntawm glaciers hauv Greenland.
Vim li cas cov dej khov nab kuab ntab saum dej?
Dab tsi yog qhov tshwj xeeb ntawm cov dej khov ua rau nws ntab? Ntseeg nws los tsis yog, dej khov tiag tiag li 9% tsawg dua li dej. Txij li cov dej hnyav dua, nws hloov cov dej khov sib zog, ua rau cov dej khov ntws mus rau saum. Vim li cas dej khov ntab saum dej hoob 9?
Puas yog cov dej khov nab kuab antarctica tawg?
Nyob rau hauv txoj kev tshawb no, lub Doomsday glacier tsis yog doom-y heev. Tsis muaj qhov tawg, tsis muaj qhov taw qhia, tsis muaj qhov dhia loj hauv hiav txwv nce. Tam sim no muaj dab tsi tshwm sim rau Antarctica cov glaciers? Txij li thaum xyoo 1990, Antarctica tau poob kwv yees li peb trillion tons ntawm dej khov.
