Ib pob zeb sedimentary, roj shale pom thoob plaws ntiaj teb, suav nrog Tuam Tshoj, Israel, thiab Russia. Lub tebchaws United States, txawm li cas los xij, muaj cov khoom siv shale tshaj plaws.
Kerogen nyob qhov twg?
SIAB PHEM | Mineralogy thiab Classification
Kerogen feem ntau tso rau hauv anoxic txo qis cov xwm txheej, feem ntau pom nyob rau hauvmarshes, swamps, meres, ntsev marshes, thiab lagoons, thiab tshwj xeeb tshaj yog cov yam ntxwv ntawm deltas (saib SEDIMENTARY ENVIRONMENTS | Deltas).
Kerogen tsim li cas?
Kerogen yog cov khoom siv roj av, cov organic tsis sib haum uas tsim thaum cov organic shale tau faus rau hauv ob peb txheej ntawm sediment thiab yog rhuab. Yog tias cov kerogen no txuas ntxiv ua kom sov, nws ua rau qeeb qeeb ntawm cov fossil fuels xws li roj thiab cov pa roj carbon monoxide, thiab cov roj carbon graphite uas tsis yog roj.
Koj paub kerogen li cas?
Kev txiav txim siab kerogen zoo
Hom kuv kerogen yog qhov zoo tshaj plaws; hom III yog qhov qis tshaj. Hom I muaj cov ntsiab lus hydrogen siab tshaj plaws; hom III, qis tshaj. Txhawm rau txiav txim siab hom kerogen tam sim no hauv pob zeb, ploj cov ntsuas hydrogen thiab oxygen ntawm daim duab hloov pauv Van Krevlen (Daim duab 1).
Qhov kub npaum li cas yuav kerogen hloov mus ua roj av?
Tsuas yog thaum kub txog li 80–90◦C, piv txwv li, ntawm 2–3 km qhov tob, puas hloov pauv cov nroj tsuag organic thiab tsiaj teeb meem rau hydrocarbons maj mam pib tshwm sim. About 100–150◦C yog qhov kub zoo tshaj plaws rau qhov hloov pauv ntawm kerogen rau roj, uas yog hu ua maturation.
