Chert yog qhov txaus siab rau cov neeg sau pob zeb, gemologists, geologists, thiab knappers (cov neeg tsim cov cuab yeej pob zeb zoo li cov Neeg Qhab Asmeskas), thiab nws yog siv rau hauv tsim cov pob zeb ntse thiab cov khoom abrasiveTab sis ib qho kev siv ntau tshaj plaws ntawm chert yog ib feem ntawm cov khoom sib sau ua ke.
chert siv niaj hnub no li cas?
Chert Siv
Nyob hauv qee thaj chaw, nws yog ubiquitous li kwj gravel thiab fieldstone thiab tam sim no siv as siv cov khoom siv thiab txoj kev surfacing Ib feem ntawm chert qhov chaw nyob hauv txoj kev surfacing los yog driveway kev tsim kho yog hais tias los nag nyhav rau ruaj thiab compact chert thaum lwm cov sau feem ntau tau nkos thaum ntub.
Yuav siv cov conglomerate yog dab tsi?
Conglomerate muaj qhov sib txawv hardness, thiab nws feem ntau zoo li pob zeb. Nws yog feem ntau pom nyob rau hauv feem ntau tuab, crudely stratified txheej. Cov txaj ntawm conglomerate feem ntau yog underground reservoirs ntawm dej thiab roj av. Conglomerates yog siv hauv kev tsim kho kev lag luam ua pob zeb zoo nkauj
flint siv rau hnub no yog dab tsi?
Cov Neeg Qhab Asmeskas siv Ohio flint los ua cov ntsiab lus, xws li xub thiab hmuv taub hau, nrog rau kev xyaum thiab lwm yam cuab yeej. Cov neeg nyob sab Europe thaum ntxov siv cov flint li buhrstones (nyuaj millstones) los zom nplej. Niaj hnub no, kev siv flint feem ntau yog ornamental, xws li hauv cov hniav nyiaj hniav kub
Dab tsi yog siv cov xuab zeb?
Sandstone yog siv hauv lub tsev ntawm tsev thiab sab nraum zoov, nrog rau cov rooj vag lossis kev txhawb nqa rau txhua kab ntawm porches. Nws tuaj yeem siv los tsim cov qhov cub sab nraum zoov, qhov cub, patio lossis porches, khaws cov phab ntsa thiab cov kev taug kev. Koj tuaj yeem pom cov rooj tog zaum nraum zoov, xws li cov rooj tog zaum hauv vaj lossis cov rooj patio, ua los ntawm cov khoom siv.