Kuyini egwadle, futhi lapho butholakala nemvelo

Uma nicela noma yini umuntu wokuqala, ukuthi yimaphi Idwala liyisisekelo, ngokombono wakhe, lo eyizingqabavu kakhulu, kunzima kakhulu cishe uyosho ukuthi egwadle. Stone lokhu yezimbiwa siqinile kakhulu futhi kuyasebenziseka, kanye impela esibukekayo, + futhi ngakho ngokuvamile isetshenziswa ekwakheni. Ngaphezu kwalokho, ngokuvamile sisetshenziswa ukwakha ezihlukahlukene izakhi zokuhlobisa, kuhlanganise izikhumbuzo. igama zohlobo livela egameni lesi Latin «granum», okuyinto libhekisela kuye lo "okusanhlamvu".

Kuyini egwadle

Izingxenye ezisemqoka lokhu chithi saka emhlabeni edwaleni kukhona feldspar futhi asebenza ngebhethri. Kubukeka sengathi itshe egwadle? Izithombe izincazelo izinhlobo ezahlukene zohlobo bathi leli tshe kungaba ngokuphawulekayo ziyahlukahluka ngombala, ungabi efana nezinye izinhlobo, futhi uthathe ezihlukahlukene shades ezisukela sakuba ziphethe grey. Painting egwadle, ikakhulukazi incike amaminerali, okuyinto ingxenyenamba yayo mass evelele phezu lonke amalungu zohlobo inikezwe. Feldspar ngokuvamile emelelwa izinhlobo ezahlukene potassium feldspar futhi kungenziwa kulekelelwa noma oligoclase albite. A inclusions asebenza ngebhethri e egwadle isimo okusanhlamvu wosayizi omncane Vitreous. Lesi sakamuva kungaba bluish kancane noma kungekho nto enemibala emihle. Ngaphezu kwalokho, ephendula umbuzo kuyini legwadle, qiniseka uqaphele iinthombe muscovite futhi biotite, kanye izinto ezifana zircon, magnetite, titanium, apatite futhi allanite. Nokho, okuqukethwe kule amaminerali kakhulu kancane. Ebala imishikashika zonke izinto esakhiwa egwadle, siphawula ukuthi nokwanda noma ukungabi izingxenye ezithile ke ayaqala ukuba ubheke ezinye izinhlobo zamakhiwane amatshe. Ngakho, uma kukhona okuncane kakhulu potassium feldspar futhi asebenza ngebhethri, iwela iqembu asebenza ngebhethri diorite noma monzonite. Futhi uma egwadle likhulu kakhulu ingxenyenamba mass plagioclase, lokhu yezimbiwa kubhekwa granodiorite, futhi kokuqukethwe eliphansi kakhulu amaminerali mafic - leucogranite.

Imali, izimayini

Uma sesibuyekeze ngokuningiliziwe, lokho siqukethe egwadle, tshela okuncane mayelana nokuthi lapho lokhu yezimbiwa kutholakala futhi lapho misela. Ngokwemvelo, lokhu zohlobo amanga zokwakheka sasivumela omkhulu eyaziwa ngokuthi batholiths. ukujiya wabo 3-4 km ubude futhi ngokuvamile idlula 100 amakhilomitha square. Futhi, imali egwadle kungathatha ifomu amasheya kanye dikes. Ngokuvamile, izingqimba lokhu yezimbiwa zitholakala eyodwa ngaphezu kwamanye, futhi isenzo njengoba sedimentary ungqimba noma amatshe metamorphic. Imali yamadwala granitic, kukhona ngokuphelele wonke amazwekazi. Ngokuvamile ziseZwini izindawo lapho kwakungamadodana eqinile ukuguguleka komhlabathi kanye denudation izinqubo, ngenxa okuyinto ubuqotho idwala sedimentary iphukile. E-US, egwadle ezifakwa zitholakala eduze Ozark Plateau elaliphansi kwamagquma eziNtabeni ZaseRocky futhi ezintabeni Black Hills. ERussia, lokhu yezimbiwa ikakhulukazi etholakala Urals, empumalanga yeSiberia neMpumalanga Ekude.