SLATE tsim li cas?

Tus tsim ntawmDaim Slateyog tib yam li cov uas ntuav ntoo dej. Nws yog cov pob zeb sedimentary tsim los ntawm kev sib xyaw ntev ntev ntawm cov xuab zeb nplej thiab cov khoom sib tsoo (siliceous teeb meem, calcium carbonate, av nplaum, hlau oxide, calcium sulfate, thiab lwm yam) vim qhov txav ntawm lub ntiaj teb' s daim tawv tawv. Ntawm cov xim tam sim no feem ntau yog lub teeb ntsuab, dub, lub teeb ntsuab, liab dawb, xim av, lub teeb txho, daj thiab thiaj li nyob .Sate tsis tsuas yog nplua nuj hauv txaj, thiab cov ntaub ntawv nyuaj, cov xim zoo nkauj, tsis muaj dej nqus, tsis muaj kuab paug rau, matte, anti-plam, acid thiab alkali tsis kam, tiv thaiv hluav taws, tsis kam txias, huab cua tsis kam, tuaj yeem ua haujlwm nyuaj thiab lwm yam ntxwv.

Cov tshuaj muaj ntxhia tsuas yog mica, ua raws li chlorite, quartz, me me ntawm pyrite thiab calcite.Qhov hom tshiab SLATE muaj cov av xuab zeb ntau, ntau calcium thiab pyrite, thiab nyuaj lithology.Qhov ore lub cev yog calcareous sericite thiab nplua ore sericite nrog ib txheej tuab ntawm 1-5cm.

Cov pob zeb hauv pob zeb yog tsim los ntawm kev hloov kho me me ntawm cov av nplaum, pob zeb zoo nkauj sedimentary pob zeb lossis nruab nrab cov kua qaub tuffaceous pob zeb los yog tuffites.Black lossis greyish dub.Qhov lithology yog ntom thiab tabular cleavage yog tsim.Yog feem ntau me me ntawm sericite thiab lwm yam minerals tawm ntawm lub rooj tsavxwm, yog li hais tias lub rooj tsavxwm me ntsis qhia cov lus lo lo lo lus.Qhov tsis muaj qhov pom tseeb recrystallization.Under lub tshuab tsom kab, qee lub pob zeb ntxhia xws li quartz, sericite thiab chlorite tsis tau yooj yim faib, tab sis feem ntau lawv yog cryptocrystalline av nplaum ntau thiab carbonaceous thiab ferric hmoov. Nws muaj cov yam ntxwv sib txawv thiab cov qauv qauv.

Cov lithoprotoliths nrog cov qauv tabular no mas ua kev sib cav, argillaceous siltstone thiab nruab nrab kua qaub tuff.Slate yog cov khoom lag luam qib qis hauv cheeb tsam metamorphism. Nws qhov kub thiab isotropic lub siab tsis siab, thiab nws yog feem ntau cuam tshuam los ntawm kev ntxhov siab.Qhov metamorphic pob zeb nrog slate-zoo li cleavage tsim feem ntau los ntawm kev sib cav thiab kev sib xyaw. Cov pob zeb zoo li pob zeb nrog cov qauv ntom ntom nti thiab kev txhim kho zoo li slate tuaj yeem siv cov tsev pob zeb, ntsiav tshuaj, ntawv ntsej muag thiab lwm yam khoom siv pob zeb.

Xyoo dhau los, ntau qhov tseeb pom tias pob zeb ntuj tau dhau los ua ib qho ntawm cov khoom siv hauv pem teb nrov tshaj plaws.Lawv muaj qee lub peev xwm uas ua rau lawv zoo tagnrho rau cov chav dej hauv av.Late, ua lub pob zeb ntuj, muaj cov khoom txig ua rau nws zoo tagnrho cov ntaub pua tsev hauv chav dej.