Miyalayo n'chiyani, ndi kumene zopezeka zachilengedwe

Ngati mudzapempha woyamba alipo munthu, kodi thanthwe, mu maganizo ake, wangwiro kwambiri, ndi kwambiri ayenera kunena kuti ndi lubwe. Mwala wa mchere izi ndi olimba kwambiri ndi zothandiza, komanso wokongola kwambiri maonekedwe, ndipo kawirikawiri amagwiritsidwa ntchito yomanga. Komanso, amagwiritsidwa ntchito kawirikawiri kulenga zosiyanasiyana zinthu zokongoletsera, kuphatikizapo zipilala. mtundu dzina amachokera ku mawu Latin «granum», yomwe imaimira ndi "mbewu".

Miyalayo Kodi

The Gawo la ichi ambiri padziko lapansi mwala ndi feldspar ndi khwatsi. Izo zikuwoneka ngati mwala lubwe? Photos ndi mafotokozedwe a mitundu yosiyanasiyana ya mtundu amanena kuti mwala uwu akhoza kwambiri zosiyanasiyana mtundu, musakhale ngati mitundu ina ndi kutenga zosiyanasiyana mithunzi kuyambira wotumbululuka pinki, kutsiriza ndi imvi. Painting ya lubwe, makamaka zimadalira mchere, amene ndi nusu ake misa chimaposa pa otsala a anthu a mtundu anapatsidwa. Feldspar ambiri umaimiridwa ndi mitundu yosiyanasiyana ya feldspar potaziyamu ndipo akhoza wodzilemekeza kapena albite oligoclase. A khwatsi inclusions mu lubwe ndi mawonekedwe a ang'ono-kakulidwe mbewu vitreous. Yotsirizira zingakhale pang'ono bluish kapena colorless. Komanso, poyankha funso zimene tingachite lubwe, onetsetsani onani kulolerana wa muscovite ndi biotite, komanso zinthu monga zircon, magnetite, titaniyamu, apatite ndi allanite. Komabe, nkhani mu mchere chimenechi, pang'ono kwambiri. Enumerating zinthu zonse za chomwe lubwe, tiona kuti ndi kuchuluka kapena kusowa kwa zigawo zina za izo ndi kuyamba amatchula mitundu ina ya miyala. Choncho, ngati pali waung'ono kwambiri potaziyamu feldspar ndi khwatsi, imagwera mu gulu la khwatsi diorite kapena monzonite. Ndipo ngati lubwe ndi lalikulu kwambiri misa nusu ya plagioclase, mchere izi imatengedwa granodiorite, ndi pa zili otsika kwambiri a mchere mafic - leucogranite.

Madipoziti, migodi

Tika kuwunikira mwatsatanetsatane, zimene tichipeza lubwe, uzani pang'ono za komwe mchere izi zimapezeka ndi kumene ncho. Mu chikhalidwe, mtundu umenewu uli formations mwachilungamo yaikulu kudziwika monga batholiths. makulidwe awo ndi 3-4 Km nthaŵi yaitali ndiponso kuposa makilomita 100 lalikulu. Komanso, miyala ya lubwe akhoza kutenga maonekedwe a m'matangadza ndi dikes. Nthawi zambiri, zigawo za mchere izi zili pamwamba pa ena, ndi kuchita ngati wosanjikiza nyanja kapena miyala metamorphic. Miyala ya miyala granitic, pali mwamtheradi pa paliponse. Nthawi zambiri amapezeka mu malo anali amphamvu kukokoloka ndi denudation njira, chifukwa chimene umphumphu wa nyanja thanthwe wawonongeka. Mu US, madipoziti lubwe ali kufupi ndi Ozark Plateau mu m'tsinde mwa miyala Mapiri ndi mapiri a Black Hills. Mu Russia, mchere izi makamaka ili mu Urals, mu kum'mawa Siberia ndi Far East.