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Ib suam ntawm pawg ntawm xau

Lub nto txheej ntawm pob zeb, uas yog feem ntau yog raug, hu ua "phau pib qhia". Nws cov khoom yog ncaj qha nyob rau ntau yam lwm influences uas yuav ua rau cov tshuaj thiab lub cev yaig, kev puas tsuaj ntawm huab cua, dej yaig, raws li zoo raws li kub hloov. Lub uppermost ib feem ntawm cov av, uas yog kev kawm mus rau ntxiv tus ntawm ntau yam lom yam, hu ua av. Cawv ntawm cov av thaum lub sij hawm qhov kev siv ntawm tej vaj tse thiab txoj kev yog heev loj. Nyob ntawm seb lub hom thiab cov khoom ntawm qhov sib txawv stability thiab durability ntawm lub ntiaj teb cover technology thiab kev tsim kho kev tsim.

Los ntawm degree ntawm kev puas tsuaj ntawm lub ntiaj teb thiab cov pob zeb integuments, paub qhov txawv cov nram qab no tseem ceeb ntawm kev xau:

1. Neskalnye.

2. pob zeb.

Cov thawj pab pawg neeg, nyob rau hauv lem, yog muab faib ua ob peb pab pawg raws li cov neeg kawm ntawv ntawm fragmentation: ntxhib, av nplaum thiab xuab zeb xau.

Ntxhib pab pawg neeg av muaj ib tug sib tov ntawm unbound particle loj loj tshaj 2 hli, nrog rau lawv cov kev faib ua feem ntawm ntau tshaj 50% ntawm ceeb thawj. Sandy xau yog ib tug sib tov ntawm qhuav tej particulate tag nrho loj tsis muaj txaus ductility.

Av nplaum xau pawg neeg trenching npog, tsis dua dej uas tej zaum yuav monolithic los yog qhuav lumpy mob, tab sis yas nyob rau hauv ib tug wetted mob. Cov ntsiab lus ntawm argillaceous pob zeb yuav tsum muaj tsawg kawg yog 3% ntawm tag nrho cov ceeb thawj.

Pob Zeb pab pawg neeg xau raug muab faib ua metamorphic, igneous thiab sedimentary. Lawv muaj ib tug nruj heev txaus sib raug zoo ntawm cov grain sib tov thiab mineral hais, uas tej zaum yuav pw nyob rau hauv ib tug tawg txheej los yog nruam array.

Igneous constituting pob zeb yog volcanic keeb kwm thiab nws cov kev faib: effusive, piv txwv li, diabase thiab basalt, thiab nyob rau hauv-tob, xws li syenite thiab granite.

Sawv cev metamorphic pob zeb uas tau raug kub thiab siab, piv txwv li, marble, quartzite los yog gneiss. Cov ntaub ntawv muaj ib theem siab ntawm lub zog.

Cov tsim ntawm lub sedimentary xau pab pawg neeg yog vim deposits ntawm hais los ntawm cov hlau lead slurry uas tom qab yog hloov dua siab tshiab rau hauv ib lub tsev txheej. Lawv yog tog twg los lub txiaj ntsim ntawm cov pa tshuaj deposition, los yog ib tug ntau yam ntawm cov organic dab. Ib yam li ntawd tshwm sim marl, dolomite, gypsum, limestone thiab peat.

sedimentation tej yam kev mob tshwm sim los ntxiv kev faib mus rau hauv aeolian, dej-glacial Moraine, dej thiab cov hiav txwv.

Clastic pob zeb comprise ob pab pawg, uas yog cais los ntawm qhov xwm ntawm tus sis ntawm tus hais nyob rau hauv lub kev cob cog rua (av nplaum) thiab kaw (xuab zeb thiab gravel).

Cov khoom ntawm txhua pab pawg neeg ntawm cov av nyob rau ntawm cov tsos ntawm cov pob zeb, tab sis lawv tej zaum yuav txawv muaj nuj nqis nyob rau hauv cov tshuaj thiab mineralogical muaj pes tsawg leeg, qhov kev twb kev txuas, tus duab thiab particle loj.

Yog li, lub primer yog ib tug dispersed multiphase system, nyob rau hauv lawv lub xeev ntuj nws muaj peb theem: cov mineral Cheebtsam ntawm cov pob zeb, dej thiab huab cua.

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