Video: Dab tsi yog progradation hauv geology?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Nyob rau hauv sedimentary geology thiab geomorphology, lub sij hawm nce qib hais txog kev loj hlob ntawm tus dej delta tawm mus rau hauv hiav txwv dhau sijhawm. Kev nce qib tuaj yeem tshwm sim los ntawm: Lub sijhawm ntawm lub caij nplooj zeeg dej hiav txwv uas ua rau cov dej hiav txwv regression.
Raws li txoj cai, Retrogradation geology yog dab tsi?
Retrogradation yog qhov kev hloov pauv hauv av nyob rau hauv txoj hauj lwm ntawm pem hauv ntej ntawm tus dej delta nrog lub sijhawm. Qhov no tshwm sim thaum qhov sib npaug ntawm sediment rau hauv lub delta yog li hais tias qhov ntim ntawm cov sediment tuaj tsawg dua qhov ntim ntawm lub delta uas ploj mus los ntawm kev tawg, dej hiav txwv nce, thiab / los yog yaig.
Tsis tas li ntawd, kev ua txhaum cai thiab kev thim rov qab yog dab tsi? A kev txhaum yog ib tug landward hloov ntawm ntug hiav txwv thaum regression yog kev hloov pauv hauv hiav txwv. “ Kev txhaum "thiab" regressions ” feem ntau yog siv, piv txwv li, xa mus rau ntug dej hiav txwv kab hloov pauv vim glaciations, uas ua rau ob qho tib si eustatic sea-level hloov thiab kev poob qis los yog rov qab.
Yog li ntawd, dab tsi yog progradation thiab Retrogradation?
Yog hais tias lub hiav txwv theem nce thiab muaj pes tsawg los yog tsawg sediment flux, ces transgression tshwm sim. Yog hais tias lub hiav txwv theem nce thiab muaj tsawg tus nqi sediment flux, ces retrogradation tshwm sim. Yog hais tias lub hiav txwv theem nce thiab tus nqi ntawm sediment flux tshaj lub hiav txwv theem nce, ces nce qib tshwm sim.
Progradation txhais li cas?
Nyob rau hauv sedimentary geology thiab geomorphology, lub sij hawm nce qib hais txog kev loj hlob ntawm tus dej delta tawm mus rau hauv hiav txwv dhau sijhawm. Kev nce qib tuaj yeem tshwm sim los ntawm: Lub sij hawm ntawm dej hiav txwv-qib poob uas ua rau marine regression.
Pom zoo:
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