Diorite pob zeb yog lub pob zeb intrusive uas nws muaj pes tsawg leeg yog nruab nrab ntawm gabbro thiab granite. Nws yog tsim nyob rau hauv volcanic arcs thiab nyob rau hauv lub roob lug, qhov twg nws tshwm sim nyob rau hauv loj qhov ntau nyob rau hauv daim ntawv ntawm batholiths nyob rau hauv lub hauv paus ntawm cov kob arcs (piv txwv li, nyob rau hauv Scotland, Norway). Vim tias lub pob zeb no muaj cov xim dub thiab dawb, nws feem ntau hu ua " ntsev thiab kua txob ". Diorite yog plutonic sib npaug ntawm andesite.
Dab tsi yog diorite?
Diorite yog lub npe ntawm ib pawg ntawm cov pob zeb ntxhib-grained igneous pob zeb uas muaj granite thiab bas alt. Lub pob zeb feem ntau tsim hla ib thaj tsam ntawm daim phiaj sib koom ua ke qhov chaw dej hiav txwv nyob hauv qab lub teb chaws.
Ib nrab melting ntawm dej hiav txwv phaj ua rau kev tsim ntawm bas alt magma, uas nce thiab nkag mus rau hauv cov pob zeb granite ntawm cov phaj sab av loj. Nyob ntawd, bas altic magma sib xyaw nrog cov pob zeb lossis cov pob zeb tawg, nce mus rau sab av loj. Yog liLub yaj yog tau, uas yog nruab nrab ntawm cov muaj pes tsawg leeg ntawm bas alt thiab granite. Diorite yog tsim thaum xws li yaj crystallizes hauv qab saum npoo.
Composition
Diorite pob zeb feem ntau muaj sodium-nplua nuj plagioclase nrog tsawg hornblende thiab biotite. Nws feem ntau muaj me ntsis quartz. Qhov no ua rau diorite ib pob zeb ntxhib-grained nrog kev sib piv ntawm cov pob zeb dub thiab dawb pob zeb.
Diorites yog tsim los ntawm feldspar, plagioclase, amphiboles thiab micas, nrog qee zaus me me ntawm orthoclase, quartz lossis pyroxene.
Cov tshuaj muaj pes tsawg leeg ntawm lub pob zeb yog nruab nrab ntawm gabbro thiab felsite granite.
Keeb kwm siv
Diorite yog ib lub pob zeb hnyav heev uas nyuaj heev rau kev ua haujlwm nrog cov kev vam meej thaum ub (xws li tim lyiv teb chaws thaum ub) tau siv pob zeb los ua haujlwm granite. Nws hardness, txawm li cas los xij, ua rau nws muaj peev xwm ua haujlwm thiab polish diorite zoo, thiab tseem ua kom lub zog ntawm cov khoom tsim los ntawm nws.
Ib qho kev siv feem ntau ntawm diorite yog rau cov ntawv sau. Tej zaum txoj haujlwm nto moo tshaj plaws nyob rau hauv lub neej yog Hammurabi txoj cai lij choj. Nws yog carved rau ntawm ib tug stele ntsuas 2.23 m los ntawm dub diorite. Thawj ntawm cov haujlwm no tuaj yeem pom hnub no hauv Louvre hauv Paris. Kev siv diorite hauv kev kos duab yog qhov tseem ceeb heev hauv Middle East kev vam meej xws li Ancient Egypt, Babylon, Assyria thiab Sumer. Lub pob zeb muaj nuj nqis heev uas thawj lub tebchaws Mesopotamian (Akkadian Empire)suav hais tias nws ntes tau yog lub hom phiaj ntawm kev mus ncig ua tub rog.
Lub cev muaj zog ntawm diorite
Lub cev lub cev ntawm pob zeb yog siv los txiav txim siab lawv hom thiab kawm ntxiv txog lawv. Muaj ntau yam khoom ntawm lub cev ntawm diorite xws li hardness, grain loj, hnav tsis kam, porosity, luster, lub zog uas txhais nws. Lub cev lub cev ntawm cov pob zeb diorite yog qhov tseem ceeb rau kev txiav txim siab nws cov qauv thiab siv.
Zoo thiab lub zog
Lub cev lub cev ntawm cov pob zeb diorite nyob ntawm nws qhov tsim. Lub cev lub cev ntawm pob zeb ua lub luag haujlwm tseem ceeb hauv kev txiav txim siab nws daim ntawv thov hauv ntau qhov chaw. Lub pob zeb raug ntsuas ntawm Mohs hardness scale, uas ntsuas lawv ntawm 1 txog 10. Pob zeb uas muaj qhov tawv ntawm 1-3 yog pob zeb mos, 3-6 yog pob zeb nruab nrab, thiab 6-10 yog pob zeb tawv. Lub hardness ntawm diorite yog 6-7, thaum nws compressive zog yog 225.00 N / mm2. Diorite tsis yog tsuas yog nyuaj, tab sis kuj viscous, uas txiav txim siab nws hnav tsis kam. Lub ci ntsa iab ntawm diorite yog kev sib cuam tshuam ntawm lub teeb nrog nws qhov chaw. Diorite yog lub pob zeb ci ntsa iab. Splitter nws tsis muaj. Lub ntiajteb txawj nqus ntawm diorite yog 2.8-3. Nws yog inherently opaque thiab muaj kev cuam tshuam lub zog ntawm 2.1.
Diorite thiab andesite
Cov no yog cov tsiaj zoo sib xws. Lawv muaj tib yam ntxhia muaj pes tsawg leeg thiab pom nyob rau hauv tib thaj chaw. Qhov sib txawv yog nyob rau hauv grain loj thiab txias npaum li cas. Diorite maj mam crystallized hauvLub ntiaj teb. Qhov kev ua kom txias qeeb no ua rau muaj qhov hnyav hnyav. Andesite yog tsim thaum magma crystallizes sai heev ntawm lub ntiaj teb nto. Qhov txias txias no muab pob zeb nrog cov muaju me me.
Daim duab hauv qab ntawm lub pob zeb diorite qhia tau hais tias tus qauv zoo li nws yuav tshwm sim rau ntawm qhov chaw ua haujlwm polished, tig mus rau pob zeb lossis pob zeb hauv pem teb. Nws feem ntau yog muag li "dawb granite" ntawm lub khw kws ntoo lossis lub tsev muag khoom.
Diorite thiab granite
Granodiorites, nruab nrab mus rau ntxhib pob zeb yog qee qhov tseem ceeb tshaj plaws ntawm cov pob zeb tsis muaj zog. Nws yog tsim los ntawm quartz thiab txawv ntawm granite nyob rau hauv uas nws muaj ntxiv plagioclase feldspar. Nws lwm yam minerals xws li hornblende, biotite thiab augite. Plagioclase (andesine) feem ntau yog ob chav siv lead ua, qee zaum kaw tag nrho hauv orthoclase. Raws li txoj kev tsim thiab cov tsos, lub cev zoo li, ntxhia muaj pes tsawg leeg thiab kev ntxhib los mos, granite muaj ntau txoj hauv kev zoo ib yam li granite. Nws yog xim dub vim yog cov ntsiab lus siab dua ntawm plagioclase.
Siv
Nyob rau hauv thaj chaw uas diorite tshwm sim ze ntawm qhov chaw, nws yog qee zaum mined rau siv li rubble. Nws muaj lub zog uas piv tau zoo nrog cov granite. Nws yog siv los ua cov khoom siv hauv paus hauv kev tsim txoj kev, tsev thiab chaw nres tsheb; siv los ua lub pob zeb tso dej thiab tswj kev yaig.
Hauv kev lag luam pob zeb, diorite feem ntau txiav rau hauvtig pob zeb, vuas. Ashtrays, blocks, paving pob zeb, curbs thiab ntau yam khoom pob zeb yog tsim los ntawm nws. Diorite pob zeb yog muag raws li "granite". Lub ntuj pob zeb kev lag luam siv lub npe "granite" rau txhua lub pob zeb uas pom, intertwined feldspar nplej. Qhov no ua rau nws yooj yim dua los tham nrog cov neeg siv khoom uas tsis paub yuav ua li cas txheeb xyuas cov pob zeb tsis zoo thiab metamorphic.
Diorite in art
Diorite pob zeb yog qhov nyuaj rau siv hauv cov duab puab vim nws qhov hardness, sib txawv muaj pes tsawg leeg thiab coarse grain loj. Rau cov laj thawj no, nws tsis yog lub pob zeb nyiam ntawm sculptors, txawm hais tias nws tau nrov ntawm cov neeg qub ntawm txoj haujlwm hauv Middle East.
Diorite muaj peev xwm nqus cov lacquer thiab qee zaum txiav rau hauv cabochons lossis siv los ua lub pov haum. Hauv tebchaws Australia, diorite nrog cov paj yeeb zoo nkauj feldspar suav nrog raug txiav rau hauv cabochons thiab hu ua "pink marshmallow".
Nyiaj
Diorite deposits kuj tsawg. Cov pob zeb no tau tawg mus thoob plaws ntiaj teb. Lawv muaj nyob rau hauv cov teb chaws xws li UK (Aberdeenshire thiab Leicestershire), Lub teb chaws Yelemees (Saxony thiab Thuringia), Romania, Ltalis (Sondrio, Guernsey), New Zealand (Coromandel Peninsula, Stewart Island, Fiordland), Qaib ntxhw, Finland, central Sweden, Tim lyiv teb chaws, Chile thiab Peru, nrog rau hauv US xeev xws li Nevada, Utah thiab Minnesota. Nyob rau hauv Corsica, lub Mediterranean kob nyob rau Fabkis, ib tug orbicular (spheroidal) ntau yam diorite tau pom, uas tau hais.raws li "Corsite" lossis "Napoleonite" tom qab lawv qhov chaw nyob thiab Fabkis tus thawj coj raws li.
