Roch ntawv vov kawg yog qhov roch tshiab uas muaj los ntawm cov vov kawg. Thaum cov vov kawg poob, nws txhawb roch mob uas tsis tau sov thiab uas hu ua magma. Tom qab magma no sov thiab tau sov, nws yuav dhau los ua roch ntawv vov kawg. Roj no tuaj yeem muaj ntau qhov txawv, xws li roch lava lossis pumice. Nws muaj ntau qhov liab thiab ntau qhov ntsiab, yog li nws daj nyob thiab cov neeg siv nws rau ntau yam. Tshwj xeeb yog rau kev tswj hwm lub zog, kev tswj hwm lub tshuab, thiab thiaj li kev kho ruaj. Peb lub tsev kho ruaj Hezhen muab roch ntawv vov kawg zoo tshaj plaws daim Ncig Tsha uas yuav pab koj lub chaw ntawm tsev mus zoo dua thiab ua haujlwm zoo dua.
Thaum koj xaiv roch ntawv vov kawg rau lub tshuab lossis lub zog, muaj ob peb yam uas koj yuav tsum xav txog. Lub liab ntawm roch. Roch ntawv vov kawg tuaj yeem muaj liab dub, liab rog, thiab liab gray. Yog koj xav muaj liab rog uas pheej rau lub cev, roch lava liab rog yog qhov zoo. Tab sis yog koj nyiam qhov liab ntawm lub tshuab, roch gray yuav pab koj muaj qhov liab zoo thiab pab muaj qhov liab zoo rau cov tshuab thiab ntawv. Thiab roch ntawm roch kuj tshwj xeeb. Roj leej twg zoo rau lub tshuab, roj loj dua yuav pab koj muaj qhov roch rau lub tshuab lossis lub tshuab.
Cov ntaub ntawv yog ib qho tshwj xeeb tshaj plaws. Cov lus pumice yog qhov nyuaj thiab muaj qhov ntaub ntawv uas muaj qhov nyuaj. Qhov no pab rau kev tshem cov dej nyob rau hauv lub tshuab. Hezhen muab cov ntaub ntawv sib txawv los pab koj xaum cov uas koj xav tau. Yog koj xav tau qhov tsaug tshuab uas muaj dej thiab tshem cov dej tsis tau txhawb, koj yuav xaum cov uas muaj qhov tshwm. Nws yog qhov tshwj xeeb rau kev tswm qhov tshuab zoo. Tsis tas li ntawd, peb kuj muab Powder Bentonite , uas yuav pab koj lub tshuab zoo dua.
Tsa tsis txog qhov koj yuav siv lub qhia. Kojoj tsim qhov tshaj tsoo los ntawm lub qhia los yog qhov uas muaj kev siv? Rau qhov tshaj tsoo, kev pab ntxiv li cov liab thiab cov cim yuav tshaj tsoo. Rau qhov rooj, thov xaiv cov qhia loj dua thiab qhov ntuj zoo dua rau kom yuav tshaub hauj li. Tsis tas li ntawd, koj kuj yuav tsum xyuam xim txog kev daws teeb meem. Qee cov qhia yuav tsum tau ua kev daws teeb meem ntev dua lwm cov. Kojoj tuaj nug peb nyob rau Hezhen yog qhov twg yuav tsum ua kev daws teeb meem ntev dua.
Cov qhia tsoos yuav tshaj tsoo, nws kuj pab rau kev ua noj qab haus hauj thiab. Thaum nws tau pov tseg rau hauv cov qhia ntau leej, nws pab ua kom cov dej ntawm lub tshuab zoo dua. Vim tias cov qhia no muaj cov khoob uas zoo rau cov ntawv. Cov khoob no pab ua kom cov dej ntawm lub tshuab zoo dua. Piv txwv li, thaum cov qhia tsoos pov tseg, nws pab txhawb cov khoob li potassium thiab phosphorus rau hauv cov dej ntawm lub tshuab. Cov ntawv xav tau cov khoob no rau kom nws tuaj yeem tshaub hauj li zoo.
Lub tswv yim ntau ntawm cov neeg hais tias roj vulcanic yog ib qho xwb, tab sis tsis yog qhov tseeb. Muaj ntau qhov roj vulcanic txawv txawv, los ntawm basalt, pumice, thiab rhyolite. Lub roj txhua qhov yog los ntawm lava uas poob hauv qhov txawv txawv. Piv txwv li, basalt yog dub thiab zoo dua vim nws poob ntev. Pumice muaj ntau lub qhov ntsuag leej twg thiab nyooj vim cov qhov cua nyob hauv nws thaum nws poob ntev. Qhov lwm qhov tswv yim tsis tseeb yog tias roj vulcanic yog nyob ib puag ncig ntawm lub volcano xwb. Yog, nws yog los ntawm lava, tab sis kuj pom tau ntau zaug ntawm qhov ntau dua. Cov duab thiab dej kuj muab lawv mus rau ntau qhov. Lawv lub tswv yim tias roj vulcanic tsis muaj kev nyab xeeb, tab sis qhov tseeb yog nws muaj kev nyab xeeb heev. Cov neeg sib xyaw siv nws rau kev sib xyaw vim nws nyab xeeb rau qhov dej thiab nyob ntev. Tsis tas li, cov neeg kuj tswv yim tias roj vulcanic yog rau kev ua qhov tshuaj thiab kev ua qhov tshuaj xwb, tab sis nws muaj ntau qhov siv rau kev sib xyaw thiab kev ua qhov tshuaj. Thiab cov neeg kuj tswv yim tias nws yog qhov nyab xeeb vim nws los ntawm lub volcano. Lub volcano yog nyab xeeb thaum nws tshuab, tab sis roj nws tus kheeb yog nyab xeeb rau kev siv ntau qhov. Nyob rau Hezhen peb xav pab cov neeg paub qhov tseeb txog roj vulcanic, kom cov neeg tuaj yeem hlub nws qhov zoo thiab kev siv.
Roch volcanique muaj ntau yam siv rau hauv kev kho tsev ntawm lub caij no, thiab cov neeg tsis paub. Qhov loj tshaj plaws yog rau kev siv ua qhov kho tsev. Cov tswv yim tsev nyiam nws rau nws qhov zoo thiab nws yuav nyob ntev. Nws tuaj yeem siv ua qhov kho tsev, qhov kho tsev ntawm qhov chaw, thiab tso cia rau qhov kho tsev ntawm qhov chaw. Piv txwv li, basalt feem ntau siv rau kev kho tsev rau qhov chaw thiab qhov chaw siv rau kev mus, vim nws tuaj yeem siv rau kev siv ntau thiab tsis tuaj yeem puas. Pumice yog qhov nyooj thiab muaj kev kawb nkaus zoo, nws pab tsev sau energy thiab tso cia tsev nyob ntev hauv daim ntawv thiab nyob ntev hauv daim ntawv. Nws kuj siv rau kev kho tsev rau qhov chaw thiab qhov chaw ntawm tsev. Qhov sib txawv ntawm liab thiab qhov sib txawv ntawm liab pab tsev nyob ntev hauv kev kho tsev. Nws tuaj yeem siv ua qhov kho tsev, qhov kho tsev, thiab qhov kho tsev rau qhov chaw liab thiab qhov chaw liab. Ntawd, roch volcanique tuaj yeem siv rau hauv concrete kom nws zoo thiab nyob ntev. Tsev uas siv nws yuav nyob ntev thiab tsis xav tau kev kho. Hezhen nyiam pab cov neeg siv roch volcanique zoo rau txhua yam no. Peb xav tias siv roch volcanique tsis yog rau kev kho tsev zoo xwb, tab sis kuj pab tsev nyob ntev.
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