Limestone yog tsim nyob rau hauv ob txoj kev. Nws tuaj yeem tsim nrog kev pab ntawm cov kab mob muaj sia thiab los ntawm evaporation. Cov kab mob hauv dej hiav txwv xws li oysters, clams, mussels thiab coral siv calcium carbonate (CaCO3) pom hauv dej hiav txwv los tsim lawv cov plhaub thiab pob txha.
limestone tsim nyob qhov twg?
Lim limestones feem ntau tsim nyob rau hauv kuaj, ntshiab, sov, dej ntiav dej hiav txwv. Hom ib puag ncig ntawd yog qhov chaw uas muaj peev xwm tsim cov calcium carbonate plhaub thiab pob txha pob txha tuaj yeem vam thiab yooj yim tshem tawm cov khoom xyaw uas xav tau los ntawm dej hiav txwv.
Limestone feem ntau tsim los ntawm dab tsi?
Ib lub pob zeb ntau tshaj plaws hauv Kansas, limestone yog pob zeb sedimentary tsim los ntawm cov ntxhia calcite, uas yog calcium carbonate. Feem ntau cov pob zeb limestone tsim los ntawm marine sediment tso rau hauv hiav txwv pem teb, txawm tias qee qhov tsim hauv cov pas dej tshiab thiab cov dej ntws thiab txawm nyob rau thaj av qhuav.
Nws siv sijhawm ntev npaum li cas thiaj tsim tau limestone?
Cementing tshwm sim sai hauv cov carbonate sediments, feem ntau hauv tsawg tshaj li ib lab xyoo ntawm deposition. Qee qhov cementing tshwm sim thaum cov sediments tseem nyob hauv dej, ua kom tawv tawv.
limestone yog dab tsi thiab nws tsim li cas?
Limestone yog cov pob zeb sedimentary uas feem ntau tsim los ntawm mineral calcite (CaCO3)Nws yog tsim los ntawm crystallization los ntawm dej, lossis los ntawm kev sib sau ntawm cov plhaub thiab cov plhaub tawg. Limestone, pob zeb sedimentary, yog tsim los ntawm cov calcite, uas yog tsim los ntawm cov pob txha ntawm cov kab mob microsopic.
