Video: Puas yog Micrite muaj quartz?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Micrite nyob rau hauv cov ntaub ntawv no, ua av nplaum loj, tau raug ntxuav tawm. Lub pob zeb tsim yog tom qab ntawd tsuas yog ua los ntawm allochems, tuav ua ke los ntawm kev pom meej rau translucent calcite crystals nrog rhombohedral cleavage (hu ua SPAR lossis SPARITE) ua raws li cov cement.
| Siliciclastic pob zeb | Carbonate Pob zeb | |
|---|---|---|
| QUARTZ arnite | SHALE | LIMESTONE/DOLOMITE |
Tib neeg kuj nug tias, Micrite yog dab tsi?
Micrite yog limestone constituent tsim los ntawm calcareous hais nyob rau hauv txoj kab uas hla mus txog plaub Μm tsim los ntawm recrystallization ntawm txiv qaub av nkos. Micrite yog txiv qaub av, carbonate ntawm av nkos qib. Nyob rau hauv Folk classification microite yog lub pob zeb carbonate dominated los ntawm nplua-grained calcite.
Ib sab saum toj, dab tsi yog Micrite sedimentary pob zeb? Micrite , sedimentary pob zeb tsim los ntawm calcareous hais nyob rau hauv txoj kab uas hla ntawm 0.06 mus rau 2 hli (0.002 mus rau 0.08 nti) uas tau muab tso rau mechanically es tsis yog los ntawm kev daws. Thaum tsim yuav luag tag nrho cov plhaub khib nyiab, lub pob zeb hu ua coquina (q.v.). Coquinite yog qhov sib npaug sib npaug.
Ib yam li ntawd, pom Micrite nyob qhov twg?
piav qhia: Kev ntxhib los mos zoo heev; microite yog carbonate av nkos (feem ntau feem ntau ntawm cov pob zeb carbonate); npub, opaque, thiab aphanitic hauv tes qauv; dawb rau dub. Keeb kwm: Ua los ntawm cov pob zeb zoo ntawm cov av nkos nyob rau hauv cov cheeb tsam uas tsis tshua muaj tam sim no lossis yoj ua haujlwm; feem ntau pom nyob rau hauv central qhov chaw ntawm hiav txwv.
Puas yog Micrite clastic?
Micrite = txiv qaub av; CaCO3, mineral calcite. Micrite yog qhov sib npaug ntawm av nplaum (pob zeb = shale) hauv clastics . Dense, uniform, nplua pob zeb nrog conchoidal puas. Qhov no microite tsis muaj cov qauv pom zoo rau nws txhua, thiab yog li qhia qhov xwm txheej ntawm lub pob zeb ntshiab.
Pom zoo:
Puas yog nws muaj tseeb tias nyob rau hauv kev thauj mus los ntawm kev txav ntawm cov khoom hla ib daim nyias nyias yuav tsum muaj zog?
Hauv kev thauj mus los passive, kev txav ntawm cov khoom hla ib daim nyias nyias yuav tsum muaj zog. _ Muaj tseeb_ 5. Endocytosis yog ib txoj kev uas ib lub cell membrane nyob ib puag ncig thiab siv cov khoom los ntawm ib puag ncig. Ib daim nyias nyias uas tso cai rau qee cov ntaub ntawv dhau los qhia txog kev xaiv permeability
Quartz puas yog covalent siv lead ua?
Piv txwv ntawm covalent siv lead ua muaj xws li pob zeb diamond, quartz thiab silicon carbide. Tag nrho covalent crystals no muaj cov atom uas tau ntim nruj heev thiab nyuaj rau kev sib cais. Lawv cov qauv sib txawv ntawm cov atoms hauv molecular crystals xws li dej thiab carbon dioxide uas yooj yim sib cais
Puas yog ib qho tsis muaj polar molecule puas muaj hydrogen bonding?
Yog hais tias lub molecule tsis yog polar, ces tsis muaj kev sib cuam tshuam dipole-dipole los yog hydrogen bonding tuaj yeem tshwm sim thiab tsuas yog ua tau intermolecular quab yuam yog lub zog van der Waals tsis muaj zog
Puas yog Micrite clastic?
Micrite yog limestone tsim los ntawm calcareous hais nyob rau hauv txoj kab uas hla mus txog plaub Μm tsim los ntawm recrystallization ntawm txiv qaub av nkos. Micrite yog txiv qaub av, carbonate ntawm av nkos qib. Nyob rau hauv Folk kev faib tawm microite yog ib lub pob zeb carbonate dominated los ntawm nplua-grained calcite
Muaj pes tsawg guanine bases puas yog 50 lub hauv paus khub ob txoj hlua DNA 100 bases tag nrho muaj yog tias nws muaj 25 adenine bases?
Yog li, muaj tag nrho ntawm 25 + 25 = 50 adenine thiab thymine hauv tag nrho. Qhov ntawd tawm 100− 50 = 50 seem hauv paus. Nco ntsoov tias cytosine thiab guanine daim ntawv cog lus nrog ib leeg, thiab yog li lawv sib npaug ntawm cov nyiaj. Tam sim no peb tuaj yeem faib los ntawm 2 kom tau txais tus lej ntawm guanine lossis cytosine hauv paus