Tshwj xeeb ntawm pob zeb tsis muaj zog qhov twg lo lus 'monomineralic' feem ntau siv. Piv txwv ntawm monomineralic igneous pob zeb yog dunite (ntau tshaj 90% olivine) thiab anorthosite (ntau tshaj 90% plagioclase feldspar).
Lub pob zeb twg yog Monomineralic?
Monomineralic igneous pob zeb yog dunite (ntau dua 90% olivine) thiab anorthosite (ntau tshaj 90% plagioclase feldspar). Cov pob zeb monomineralic metamorphic yog marble thiab quartzite txawm hais tias lawv tsis tas yuav tsum yog monomineralic.
Lub pob zeb twg yog cais raws li evaporite?
Pob zeb tsim los ntawm cov dej evaporation hu ua evaporites - gypsum, anhydrite, halite (xws li ntsev). Cov evaporation no tuaj yeem tshwm sim hauv cov phiab ntiav hauv av lossis hauv hiav txwv.
pob zeb hom twg yooj yim tshaj plaws eroded?
Igneous pob zeb, tshwj xeeb tshaj yog cov pob zeb tsis muaj zog xws li granite, huab cua maj mam vim nws nyuaj rau dej nkag mus rau lawv. Lwm hom pob zeb, xws li limestone, yooj yim weathered vim lawv yaj nyob rau hauv tsis muaj zog acids.
Nyob rau hauv hom pob zeb twg tuaj yeem nrhiav tau pob txha?
Fossils feem ntau pom muaj nyob hauv pob zeb sedimentary thiab qee zaus qee cov pob zeb zoo, qib qis metamorphic.
