Txawm hais tias cov ntaub ntawv tom qab thiab bauxitic tau kawm dav, tsis muaj kev lees paub dav dav ntawm cov pob zeb. Ntau lub ntsiab lus tau hais tseg txij li thawj qhov kev piav qhia ntawm cov pob zeb tom qab los ntawm Buchanan (1807). Kev tshuaj xyuas zoo ntawm cov ntsiab lus qub yog muab los ntawm Sivarajasingham li al.
Leej twg yog pob zeb?
Laterite yog ob qho tib si av thiab pob zeb hom nplua nuj nyob hauv hlau thiab txhuasthiab feem ntau suav hais tias tau tsim nyob rau hauv cov chaw kub thiab ntub dej. Yuav luag tag nrho cov latex yog cov xim liab-xim liab, vim muaj cov ntsiab lus hlau oxide siab. … Lateite feem ntau raug xa mus rau hom av thiab yog hom pob zeb.
Leej twg ua li cas?
Laterites yog tsim los ntawm kev tawg ntawm ntau hom pob zeb, nyob rau hauv cov xwm txheej yielding txhuas thiab hlau hydroxides. Cov kev xav sib txawv ntawm cov hauv paus chiv keeb tau sib tham, nrog rau cov txheej txheem tshuaj lom neeg tom qab, thiab thaj chaw faib khoom ntawm cov av nplaum tshwj xeeb no.
Leej twg pom nyob rau hauv Is Nrias teb?
Hauv Is Nrias teb, cov av xuab zeb yog dav, npog ntau dua 10% ntawm tag nrho thaj chaw, uas yog nyob rau qhov ua siab tshaj ntawm Western Ghats, Eastern Ghats (Rajamahal Hills, Vindhyas, Satpuras, thiab Malwa Plateau), sab qab teb ntawm Maharashtra, thaj chaw ntawm Karnataka, Andhra Pradesh, West Bengal Orissa, Jharkhand, Kerala, Assam, …
Vim li cas av thiaj li hu ua latex?
Lo lus latex yog muab los ntawm Latinlo lus 'tom qab' uas txhais tau tias cib. Cov av xuab zeb yog nplua nuj nyob hauv txhuas thiab hlau thiab cov av cemented no tuaj yeem txiav tau yooj yim rau hauv cib. Qhov no yog vim li cas cov av thiaj li hu ua latex.
