Qhov sib txawv tseem ceeb ntawm stalactites thiab stalagmites yog cov stalactites dai ntawm lub qab nthab ntawm lub qhov tsua whereas cov stalagmites nce hauv pem teb ntawm lub qhov tsua. Tsis tas li ntawd, cov stalactites muaj qhov taw qhia ntug, tab sis cov stalagmites muaj ntug tuab. Tsis tas li, lawv ob leeg sib txawv ntawm cov xwm txheej rau kev tsim.
Stalactites thiab stalagmites yog ob qhov sib txawv uas tshwm sim hauv qhov tsua. Peb tuaj yeem categorize lawv raws li cov pob zeb hauv av vim tias cov formations no vim yog qhov sib txuam lossis tso tawm ntawm cov khoom sib txawv. Ob hom no txawv ntawm ib leeg raws li lawv qhov chaw nyob hauv lub qhov tsua; nyob ntawm lub qab nthab los yog hauv pem teb.
Dab tsi yog Stalactites?
Stalactites yog cov tsim uas dai ntawm lub qab nthab ntawm qhov tsua. Peb tuaj yeem nrhiav tau lawv nyob rau hauv cov dej kub thiab cov khoom siv tib neeg xws li txuas hniav, mines thiab. Cov formations no tshwm sim los ntawm deposition ntawm ntau yam ntaub ntawv uas yog soluble uas yuav deposit li colloids los yog cov ntaub ntawv nyob rau hauv suspensions. Ntxiv mus, cov ntaub ntawv no yuav tsum yaj yooj yim ib yam nkaus, tsim cov stalactites. Cov qauv no feem ntau muaj cov hauv qab no ua ke.
- Lava
- Minerals
- Mud
- Peat
- PIB
- Sand
- Sinter
- Amberat
Speleothem yog qhov piv txwv tshaj plaws rau cov qauv no. Nws yog ib daim ntawv ntawm stalactite uas tsim nyob rau hauv limestone qhov tsua. Txawm li cas los xij, tib neeg feem ntau nkag siab yuam kev tias tag nrho cov stalactites yog Speleothem, uas tsis muaj tseeb. Muaj ntau ntau hom stalactites. Piv txwv li: Lava stalactites, ice stalactites, pob zeb stalactites, thiab lwm yam.
Daim duab 01: Stalactites
Vim cov pob zeb limestone stalactites muaj ntau tshaj plaws, cia peb tham me ntsis ntxiv txog lawv. Lawv tshwm sim hauv cov qhov tsua limestone. Kev tsim yog los ntawm kev tso tawm ntawm calcium carbonate thiab lwm yam minerals uas precipitate los ntawm mineralized dej daws. Limestone muaj calcium carbonate uas tuaj yeem yaj hauv dej uas muaj carbon dioxide. Qhov kev sib cais no tsim cov tshuaj calcium bicarbonate. Qhov kev daws teeb meem no mus dhau lub qhov tsua mus txog thaum nws pom ib qho ntug. Yog tias ntug no nyob ntawm lub ru tsev ntawm lub qhov tsua, qhov kev daws yuav poob. Tom qab ntawd thaum huab cua los rau hauv kev sib cuag nrog ntug no, calcium bicarbonate hloov mus rau hauv calcium carbonate, tso carbon dioxide. Ib yam li ntawd, muaj qhov dai stalactite tshwm sim.
Dab tsi yog Staagmites?
Stalagmites yog tsim los ntawm hauv pem teb ntawm qhov tsua. Cov no yog ib hom pob zeb formations. Lawv tsim los ntawm kev sib sau ntawm cov ntaub ntawv uas tso rau hauv pem teb los ntawm qab nthab drippings. Cov formations no kuj muaj tib yam li hauv stalactites (cov khoom muaj npe saum toj no). Muaj ntau hom xws li limestone stalagmites, lava stalagmites, ice stalagmites thiab pob zeb stalagmites.
Daim duab 02: Staagmites
Thaum xav txog qhov tsim ntawm limestone stalagmites, nws tshwm sim nyob rau hauv qee yam pH. Lawv tsim los ntawm deposition ntawm calcium carbonate thiab lwm yam minerals uas precipitates los ntawm mineralized dej daws. Limestone muaj calcium carbonate. Nws tuaj yeem yaj hauv dej uas muaj cov pa roj carbon dioxide. Qhov no tsim cov tshuaj calcium bicarbonate. Nyob ntawd, ib nrab siab ntawm carbon dioxide nyob rau hauv dej yuav tsum tshaj ib nrab siab ntawm carbon dioxide rau cov pa loj hlob ntawm stalagmite. Ntxiv mus, peb yuav tsum tsis txhob kov ntawm ntug ntawm stalagmites vim tias peb cov roj ntawm daim tawv nqaij tuaj yeem hloov qhov nro ntawm ntug. Nws tuaj yeem cuam tshuam kev loj hlob ntawm stalagmite. Ntxiv rau qhov ntawd, cov av ntawm peb txhais tes tuaj yeem hloov xim ntawm cov stalagmite mus tas li.
Qhov txawv ntawm Stalactites thiab stalagmites yog dab tsi
Stalactites yog cov tsim uas dai ntawm lub qab nthab ntawm qhov tsua. Txawm li cas los xij, cov stalagmites yog cov tsim uas nce los ntawm hauv pem teb ntawm qhov tsua. Qhov no yog qhov sib txawv tseem ceeb ntawm stalactites thiab stalagmites. Qhov tseem ceeb tshaj, kev tsim ntawm stalactite nyob ntawm tus nqi ntawm kev sib cais ntawm calcium carbonate thiab tus nqi ntawm kev hloov pauv ntawm calcium bicarbonate rau hauv calcium carbonate ntawm ntug ntawm stalactite. Tab sis, nyob rau hauv lub stalagmite tsim, sib nrug los ntawm tus nqi ntawm dissolution ntawm calcium carbonate thiab tus nqi ntawm kev hloov ntawm calcium bicarbonate mus rau hauv calcium carbonate ntawm ntug ntawm lub stalagmite, qhov tsim kuj nyob ntawm pH ntawm cov dej thiab nto nro ntawm ntug.. Cov nram qab no infographic nthuav tawm qhov sib txawv ntawm stalactites thiab stalagmites raws li ib sab ntawm kev sib piv.
Summary – Stalactites vs Stalagmites
Stalactites thiab stalagmites yog ob qhov sib txawv uas peb tuaj yeem saib hauv qhov tsua. Qhov sib txawv tseem ceeb ntawm stalactites thiab stalagmites yog tias cov stalactites dai ntawm lub qab nthab ntawm lub qhov tsua whereas cov stalagmites nce hauv pem teb ntawm lub qhov tsua.
