Qhov txawv ntawm Cementation thiab Compaction yog dab tsi

Cov txheej txheem:

Qhov txawv ntawm Cementation thiab Compaction yog dab tsi
Qhov txawv ntawm Cementation thiab Compaction yog dab tsi

Video: Qhov txawv ntawm Cementation thiab Compaction yog dab tsi

Video: Qhov txawv ntawm Cementation thiab Compaction yog dab tsi
Video: poj niam hmoob lub peev xwm khwv noj khwv haus 2024, Kaum ib hlis
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Qhov sib txawv tseem ceeb ntawm cementation thiab compaction yog cementation yog hais txog cov txheej txheem ntawm gluing ua ke sediments los ntawm cov minerals uas tawm los ntawm supersaturated dej, whereas compaction yog hais txog lub smoosing ua ke ntawm deposited sediments los ntawm qhov hnyav ntawm dej thiab cov kev txiav txim siab ntawm lwm cov sediments saum toj ntawm nws.

Cementation thiab compaction yog cov ntsiab lus tseem ceeb hauv av sciences. Cementation yog lub hardening thiab welding ntawm clastic sediments los ntawm nag lossis daus ntawm cov ntxhia hauv cov pore qhov chaw. Cov lus cog lus lossis cov kev ua kom sib xyaw ua ke ntawm kev ntxhov siab rau cov av uas tuaj yeem ua rau muaj cua los ntawm cov av ntawm cov av nplej.

Cementation yog dab tsi?

Cementation yog lub hardening thiab vuam ntawm clastic sediments los ntawm nag lossis daus ntawm cov ntxhia hauv cov pore qhov chaw. Clastic sediment nyob rau hauv cov ntsiab lus no yog hais txog sediments uas yog tsim los ntawm preexisting pob zeb tawg. Cementation tuaj yeem piav qhia yog theem kawg hauv kev tsim cov pob zeb sedimentary.

Cementation vs Compaction hauv Tabular Form
Cementation vs Compaction hauv Tabular Form

Daim duab 01: Calcite Cement ntawm Limestone

Cov txheej txheem ntawm cementation feem ntau muaj ions uas nqa hauv av chemically precipitating los tsim cov ntaub ntawv crystalline tshiab ntawm cov nplej sedimentary. Nyob rau hauv cov txheej txheem no, "choj" yog tsim los ntawm cov minerals tshiab uas sau lub pores ntawm thawj sediment nplej thiab cov qub. Yog li ntawd, lawv tuaj yeem khi lawv ua ke. Nyob rau hauv no txoj kev, xuab zeb ua sandstone, thiab gravel ua conglomerates los yog breccia.

Tsis tas li ntawd, cementation tshwm sim ua ib feem ntawm kev mob ntshav qab zib lossis lithification ntawm sediments, thiab nws tshwm sim feem ntau hauv qab lub rooj dej yam tsis suav cov sedimentary grain loj rau hauv tus account. Tsis tas li ntawd, nws yuav tsum tau muaj dej ntau ntau kom dhau los ntawm cov pob zeb hauv av rau cov pob zeb hauv av tshiab kom crystallize.

Compaction yog dab tsi?

Kuv muaj kev sib xyaw lossis cov txheej txheem av yog cov txheej txheem ntawm kev ntxhov siab rau cov av uas muaj huab cua los ntawm cov av nplej. Nyob rau hauv sib piv, yog hais tias qhov ua rau ntawm densification yog dej los yog lwm yam kua raug tshem tawm ntawm av nplej, ces peb hu nws consolidation, tsis compaction. Feem ntau, compaction tshwm sim los ntawm cov tshuab hnyav compressing av. Txawm li cas los xij, nws kuj tuaj yeem tshwm sim vim kev kis ntawm cov tsiaj taw.

Cementation thiab Compaction - Sib piv ntawm ib sab
Cementation thiab Compaction - Sib piv ntawm ib sab

Daim duab 02: Lub Compactor

Nyob rau hauv kev tshawb fawb ntawm av, av compaction tuaj yeem piav qhia raws li kev sib txuas ntawm engineering compaction thiab consolidation. Yog li ntawd, nws tuaj yeem tshwm sim vim tsis muaj dej hauv cov av, siv kev ntxhov siab uas tuaj yeem tshwm sim los ntawm kev nqus dej sab hauv thiab cov dej evaporation, vim kev kis ntawm cov tsiaj taw, thiab lwm yam.

Tsis tas li ntawd, cov av uas tau dhau los ua compaction tsis muaj peev xwm nqus tau los nag, uas ua rau muaj dej ntws thiab yaig. Txij li thaum cov pob zeb hauv av nplej tau nias ua ke, nws nyuaj rau cov nroj tsuag kom muaj sia nyob hauv hom av no.

Qhov txawv ntawm Cementation thiab Compaction yog dab tsi?

Cementation thiab compaction yog cov ntsiab lus tseem ceeb hauv av sciences. Qhov sib txawv tseem ceeb ntawm cementation thiab compaction yog tias cementation yog hais txog cov txheej txheem ntawm gluing ua ke sediments los ntawm cov zaub mov uas tawm los ntawm supersaturated dej, whereas compaction yog hais txog lub smoosing ua ke ntawm deposited sediments los ntawm qhov hnyav ntawm cov dej thiab kev sib haum xeeb ntawm lwm cov sediments ntawm. saum nws.

Cov hauv qab no qhia txog qhov sib txawv ntawm cementation thiab compaction hauv daim ntawv tabular rau ib sab ntawm kev sib piv.

Summary – Cementation vs Compaction

Cementation yog lub hardening thiab vuam ntawm clastic sediments los ntawm nag lossis daus ntawm cov ntxhia hauv cov pore qhov chaw. Cov lus cog lus lossis cov kev ua kom sib xyaw ua ke ntawm kev ntxhov siab rau cov av uas tuaj yeem ua rau muaj cua los ntawm cov av ntawm cov av nplej. Qhov sib txawv tseem ceeb ntawm cementation thiab compaction yog tias cementation yog hais txog cov txheej txheem ntawm gluing ua ke sediments los ntawm cov zaub mov uas tawm los ntawm supersaturated dej, whereas compaction yog hais txog lub smoosing ua ke ntawm deposited sediments los ntawm qhov hnyav ntawm cov dej thiab kev sib haum xeeb ntawm lwm cov sediments ntawm. saum toj kawg nkaus.

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