Spherical granite yog lub pob zeb uas tau ua tiav ntawm qhov tob tob thiab tom qab ntawd mus txog qhov chaw thaum lub sijhawm khawm hauv ntiaj teb ua kaub puab. Slättemossa tsuas yog qhov chaw hauv Sweden uas koj tuaj yeem pom cov pob zeb txawv.
Hauv Slättemossa muaj ob lub roob pom pom uas muaj pob zeb ntau. Lawv raug pleev nrog ib lossis ntau txheej ntawm cov txiv qaub thiab dej qab zib. Qhov chaw nruab nrab ntawm cov pob yog ntim nrog pob zeb granite. Thaum cov dej khov ntawd tso rau saum cov roob, ib qho chaw hla ntawm cov khoom tau pom. Nws zoo li muaj ntau txhiab lub qhov muag ntsia ntsoov ntawm cov neeg tuaj saib. Ib feem ntawm calcareous sis dej qab zib txhais tau hais tias cov geologist kuj hu ua lub pob zeb qhov muag tseem ceeb.
Ntawm Järeda toj ntxas muaj qhov hla ntu ntawm pob pob granite thaiv.
Qhia
Tshawb nrhiav
Zoo heev qhov kev tawm mus ncig ua si rau cov neeg nyiam hauv geology. Lub tsuas yog paub globular granite slab hauv lub tebchaws. Tab sis nco ntsoov kom tawm pob zeb rauj hauv tsev, pob zeb slab yog kev tiv thaiv. Feem ntau ntawm nws nyob hauv qab cov pob zeb, tab sis koj tuaj yeem pom ob peb square metres ntawm nws peeking tawm. Daim duab qhia tus pin yog misplaced, tab sis nws zoo signposted yog li koj tuaj yeem pom nws txhua yam.