Limestone yog ib qho chaw zoo nkauj thiab muaj txiaj ntsig zoo uas muaj nyob thoob plaws ntiaj teb. Nws yog pob zeb sedimentary uas feem ntau ua los ntawm calcium carbonate, uas yog tib yam khoom uas ua rau seashells thiab coral.
Limestone tau tsim ntau lab xyoo raws li cov khoom me me ntawm calcium carbonate tau tso rau hauv dej hiav txwv. Raws li cov sediment txheej no thicker, qhov hnyav ntawm cov khoom overlying ua rau cov txheej hauv qab los ua compacted thiab cemented ua ke rau hauv cov pob zeb.
Thaum lub sij hawm, geological rog xws li phaj tectonics thiab volcanic kev ua si ua rau ib co ntawm cov limestone deposits yuav tsum tau nthuav tawm rau saum npoo ntawm lub ntiaj teb. Niaj hnub no, peb tuaj yeem pom cov pob zeb limestone zoo nkauj hauv qhov chaw xws li Grand Canyon, White Cliffs of Dover, thiab limestone karsts ntawm Ha Long Bay, Nyab Laj.
Limestone yog siv nyob rau hauv ntau txoj kev, los ntawm kev tsim kho mus rau sculpture mus rau vaj. Nws cov kav ntev thiab kev zoo nkauj ua rau nws yog qhov kev xaiv nrov rau cov khoom siv hauv tsev, thaum nws cov pH nruab nrab ua rau nws xaiv zoo rau kev ua liaj ua teb.
Txawm hais tias qee tus yuav pom limestone tsuas yog lwm lub pob zeb, nws yog ib qho tseem ceeb ntawm peb lub ntiaj teb. Yog li, lwm zaus koj pom limestone, siv sijhawm ib pliag kom txaus siab rau nws qhov kev zoo nkauj thiab lub luag haujlwm tseem ceeb hauv peb lub neej.
