Lejoe la mokoetla thepa. Rock ke lejoe la mokoetla. a lejoe la mokoetla le riteloang

Lejoe la mokoetla - tsa tlhaho lejoe, eo ke bonolo magweregwere manyolo kapa organo-lik'hemik'hale hlahang ho yona, a qapa haholo-holo ya khalsiamo carbonate (calcite). Hangata e kenyelletsa ditokiseletso quartz se hloeke, phosphate, silica, letsopa le lehlabathe likaroloana le litlhaka kahare calcareous lithotsela microorganisms. Sehloohong sena, re tla buisana ka litaba tsa ena ea tlhaho, mefuta e tsa lona, thepa le ho pharalla ha kopo, hammoho le ho fumana hore na ke eng ke lik'hemik'hale ka moralo oa lejoe la mokoetla, 'me ba bangata ho feta.

sebopeho lejoe la mokoetla

Ho qala, a re ke re sheba kamoo liminerale tsena ho ile ha thehoa. Lejoe la mokoetla e haholo-holo ha thehoa ka tebang beisine leoatleng, le hoja ho na le boetse ho na le metsi a hloekileng. E hlaha ka mokgwa wa mobung le dikarolo. Ka linako tse ling precipitates, joaloka gypsum le letsoai ho tswa evaporating matangoana a metsi leoatle le matša. Leha ho le joalo, boholo ba eona e beha ka maoatle tse sa nang le phihlelo e omisa matla. Sebopeho sa ho fetisisa a lejoe la mokoetla a qala le karohano ea lintho tse phelang ho tswa ho metsi leoatle ho haha k'halsiamo carbonate likhetla le 'mele. Mona ke mesaletsa ea lintho tse shoeleng e ngata ipokellela ka leoatle le. Ka mohlala ho fetisisa hlollang tsa hopola le bokella k'halsiamo carbonate ke mepopotlo ea likorale. Kahoo, maemong a mang, ka khefu a lejoe la mokoetla le likhetla motho ka bonoa. Tlas'a tšusumetso ea maqhubu leoatle le ka tshusumetso ya maqhubu a le lefilo mopopotlo khefu. Le ka leoatle le ho bokellana maloanlahla a lejoe la mokoetla k'halsiamo carbonate, eo precipitates ho tswa ho metsi phelelang bona. Hape le thuto ea lejoe la mokoetla mafika mocha amehang k'halsiamo, tseo le tsoa timetsoa mafika boholo-holo.

mefuta e

Ho na le mefuta e mengata ea lejoe la mokoetla. Coquina bitsoa likhetla lesihla le likhechana tsa bona, tiisa ka sebopeho khekhe. Tabeng ea moo khetla e na le boholo ba le monyenyane haholo, ha thehoa bonolo, loosely hammoho, e tlotsang khabeloa a helehang lejoe la mokoetla - tjhoko. Oolitic lefika e na le tse nyenyane, tse ka bang boholo ba mahe a litlhapi tiisa libolo. The konokono tsa e mong le e ka emeloa ke sekhechana sa khetla, lijo-thollo e 'ngoe ea lehlabathe kapa tse ling tse bonahalang baditjhaba phatsa. Ka joalo ha lifaha le tse khōloanyane, tse kang erekisi, ba ba bitsoa pizolitami le bakang, ka ho latellana, pizolitovym lejoe la mokoetla. fapaneng e mong ke travertine - e thehoa holim'a metsi nakong ea pula ea calcite kapa aragonite mehloli k'habone metsi. Ha mobung tsena ke haholo porous substrate (seponche), e bitsoa tuff. Unconsolidated motsoako oa letsopa le k'halsiamo carbonate bitsoa marl.

Ho phaella moo, a lejoe la mokoetla a ka fapana le mebala e. Basic 'mala - tšoeu. Empa ho ka boela ho be le 'mala o mosehla, leseli le beige, khanya ea bohlooho, bonyane - hanyenyane pinkish. Tšoeu-pinki le tšoeu bosehla lefika li nkoa e le tsa bohlokoa ka ho fetisisa.

a lejoe la mokoetla le riteloang

Joalokaha ho boletsoe pejana, lintho tse bonahalang ena ea tlhaho e entsoe ka haholo-holo ya calcite kapa calcite ntse ba lithotsela le likhetla, ka seoelo ba aragonite. Kahoo a lejoe la mokoetla le riteloang tla tjena: CaCO _3. Leha ho le joalo, bakang e hloekileng ke ka seoelo haholo, maemong a mang e akarelletsa litšila tse sa tšoaneng tsa quartz, liminerale letsopa, dolomite, gypsum, pyrite le, ya e le hantle, litlhaka kahare manyolo. Kahoo, dolomitic lejoe la mokoetla (Mokgwa wa ho Nahana bakang sena se akarelletsa MgO) kenyelletsa ditokiseletso tloha a mane ho leshome le metso e supileng ba etsang liphesente tse magnesium oxide e, marly - ho fihlela ho liphesente tse 21 tsa oxides asiti (Sio ₂ + R ₂ O _3). Ea ho hlophisoa ka kenyelletsa carbonate dolomite CaMg (CO _{3) 2,} FeCO _3, MnCO _3, 'me, ka tekanyo e nyenyane - oxides, sulfides le hydroxides tsa Fe, Ca ₃ (PO _{4) 2,} CaSO _4.

Lejoe la mokoetla: Properties le Dikopo

Physico-phetha molao thepa a mafika tse heterogeneous haholo, leha ho le joalo, li itšetlehile ka ho toba ka botenya lona le sebopeho. baithuti sekolong se phahameng, ho nahana ka thepa ea lejoe la mokoetla (Kereiti 4) ho tloha boemong ba ho litšobotsi tse lona kantle. Ba ba ithuta entsprechen latelang: 'mala, segokanyipalo, matla, boemo, solubility. Re tsamaea hanyane ka ho eketsehileng le ho nahana ka botebo e khōloanyane ea thepa oa liminerale. Lejoe la mokoetla e na le segokanyipalo sa tsa mefuta e fapaneng 2700-2900 lik'hilograma / noun m ^3. fluctuation Sena ke ka lebaka la palo ea litšila e fuperoe quartz, dolomite le liminerale tse ling. Bongata segokanyipalo liphetoho ka e mengata e fapaneng haholo kholoanyane. Ho joalo, travertine le likhetla ho lik'hilograma tse 800 feela / limithara ^3, ha bonaletsang lefika fihla 2800 lik'hilograma / noun m ^3. Nahana ka thepa ea lejoe la mokoetla, e lokela ho jere hopola hore compressive matla a mafika e itšetlehile ka bongata segokanyipalo lona. Kahoo khetla reketla ke feela 0,4 MPa, 'me ka afanitov atamela 300 MPa. Litšobotsi holimo ikemiselitse bakang le ho sebelisa thepa tsena. Ka mohlala, ka ho hahoa ha feta lejoe la mokoetla diseke ee sebediswa ho mabota majoe le porous e molemo bakeng sa lera le ho bōpa ensembles le khabisitsoeng le.

Tšusumetso ea boemo ba leholimo

Ho itšetlehile ka boemo ba mongobo thepa a lejoe la mokoetla a ka fapana. Sena se haholo-holo e ama matla a lona - e haholo tsa fokotswa ha Lejoe koloba. Ho phaella moo, boholo ba mobung o na le bakang tsoakiloeng. Mothating ona o lokela ho lefa a lebisa tlhokomelo e khethehileng, ka lebaka la lintho tse bonahalang tse inhomogeneous tla fapana le segokanyipalo sa, e leng ka lehlakoreng le ka etsa hore timetso e. Hlahloba le thepa ea lejoe la mokoetla ha baa lokela ho hlokomoloha, le entsprechen kang serame ho hanyetsa: ena e ama haholo le matla a matsoai le bolelele ba nako ea ho e sebelisa. Ho joalo, bonaletsang limestones serame ke 300-400 lipotoloho. Leha ho le joalo, palo ena e haholo tsa fokotswa ka ho ba teng ha mapetsong le pores ka boitsebiso boo. Kahoo, thepa eohle holimo ya lejoe la mokoetla e ho hlokahala hore ho nahana ka ho sebelisa boitsebiso boo ba tlhaho, e le hore ho thibela ho timetsoa ha eona.

Lejoe la mokoetla bakeng sa kaho

Indasteri ea kaho ke mosebedisi e ka sehloohong ea mehlodi ya matsoai ka pel'a rōna. Dolomitic (lefika) lejoe la mokoetla e sebediswa bakeng sa ho hlahisa putty le samente metsoako, sealants le tse ling. White a lejoe la mokoetla a ngata sebelisitsoe ka qete le mokhabiso oa meaho. Coquina e atisa ho fumanoa e le thepa ea mohaho ka diboloko, joalo-joalo. D. Re ke ke tsepamisa maikutlo indasteri ena, 'me ho joalo e tseba hantle ho hang. 'Me ka hona ee eketsehileng.

Lejoe la mokoetla tlhahiso ea kajeno liindasteri

E fellang kateng le hore lintho tse bonahalang ena ea tlhaho e sebelisoa ka tlhahiso ea pente, rubbers le dipolasetiki. A hloekisitsoeng ea litšila kotsi 'mele oa motho, e sebediswa esita le ho indasteri ea lijo. Tlhahiso ea khalase ke ke ha khoneha ntle lejoe la mokoetla, hobane ke mohloli o ka sehloohong oa khalsiamo. bakang sena se fetohile sa bohlokoa haholo, 'me botlhokwa go feta - ka theko e tlaase motsoako bakeng sa tlhahiso ea pampiri. Ka bophelo ba letsatsi le letsatsi re lula u sebelisa lihlahisoa tse kang liphaephe, linoleum, lithaele, lithaele, jj .., And ne a sa tsebe hore lintho tsena tsohle boetse ho na le hona joale a lejoe la mokoetla. Esita le ho hlahisa polasetiki (maq, PVC, krempleny, lavsan, joalo-joalo) ka se etsa ntle le boitsebiso boo e tala. inks ho sebelisoa k'halsiamo carbonate ka colouring pigment. Joalokaha u ka bona, lintho tse bonahalang ena e na le boemo ba etellang pele ka hoo e ka bang tsohle le liindasteri.

indasteri ea lik'hemik'hale

Esita le lintho tse kang seeta ho bentsa, sesepa sa meno, scouring phofo, 'me joalo-joalo., Ke re sebedisa letsatsi le letsatsi, a tsoa a lejoe la mokoetla. thepa tsena e tala le sebelisitsoe ka tlhahisong ea lithethefatsi a sebelisa ho sireletsa tikoloho ho tswa tšilafalo ea mefuta e sa tšoaneng. E Thehiloe ho se boletsoeng ka holimo, re ka ka tsela e sireletsehileng re e tsebahalang le habonolo fumaneha lintho tse bonahalang hore ke lejoe la mokoetla, ke karolo ea bohlokoa ea tsoelo-pele ea kajeno.

lintlha tse thahasellisang

A monehelo moholo ho ntshetsopele a lejoe a betla entse lichaba tsa Afrika le Amerika Bohareng. Olmecs, Maaztec, Mayans hatetseng pele ea bohlokoa mabapi le matla a ho hlahisa chalcedony, obsidian le tšepe ka silicon, seha lisebelisoa le lintho tse ling ka tlung. Ho joalo, Pinów phikolosetsa, graters, likanono le kahoo ba ile ba bopa basalt, sandstone le lejoe la mokoetla. Meropa le lisebelisoa chopping entsoe ka diorite, jade, a jade le thepa e 'ngoe. Haholo-holo bakeng sa setsi sa Lejoe sebetsa ke motse oa Maya - The fineness le Nebaj.