Baltic Shield: landform, qaab-dhismeedka tectonic iyo macdano

gaashaan Baltic yeedhay dobaykalskaya gobolka ugu da'da weyn oo xoog badan duubnaadaan ee Alps. Inta muddada jiritaanka soo baxdo si tartiib ah kor ku heerka badda. Baltic Shield nugul nabaad guurka. Waxay Muujin zone ah oo qoto dheer in suunka dhagax adag-gneiss of qolof ah dhulka ee.

gaashaan Location

U ballaaran qabsatay qiyaas ee expanses waqooyi-galbeed ee ku madal Bariga Yurub. iyaga waxaa la jiray kooxda by dhismeedka kooxda Caledonia-Scandinavia. Waxay sii on dhagaxyada crystalline duubnaadaan deegaanka.

Karelia, Finland, Sweden, Peninsula Kola ku daboolaa Baltic Shield. protrusion ugu weyn waddaa on gobolka Murmansk iyo Leningrad. Waxayna u dhawaadeen inay qabsadeen oo dhan Scandinavian Peninsula.

togaga

Under saameynta ay glaciations sameeyay gargaarka guddi. barkadaha badan ayaa duniyooyinka fuuli jiray soohdimaha. Waxay yihiin jarida galay dalka, la xirrira talgaley iyo jasiiradaha badan. qaybta waqooyi ee dhifashada pleated soo sameeyey schists qadiimiga ah iyo dhagaxyada igneous. dhismayaasha u yimaadeen inay dusha sare ee meel kasta. Waxay yihiin oo kaliya in meelaha qaar ka mid dabooli raincoats taag gabeen, korsiiya Quaternary.

Crystalline Baltic Shield aan hoos iman biyaha badda la Zaman Paleozoic Hoose, sababtoo ah taas oo waxaa la hoos geliyey si ay u baabba'aan. laalaabka Crumpled qaab adag helay darantahay ingeega, xad-dhaaf ah iyo brittleness. Sidaa darteed, marka qolof ah waxaa la kala duwanaayeen, waxaa u muuqday dildilaac, waxay noqotaa meel jab. Noocyada gooni ka dhicin, la xirrira blocks weyn.

Relief ee Platform Ruushka

Glaciers, qiime hoos u dalcadaha ee buuraha Scandinavian, baabbi'innay dhagaxyada hoostiisa crystalline furmeen adkaysan ka baxsan madal Ruush. Qaab dhismeedka cufan, aruursaday, aasaasay moraine.

MILMA waqti sitoos dheer si aada usoo Baltic Shield. Form of gargaarka on qarka helay qaab accumulative. Meesha duubnaadaan muuqday eskers, drumlins, iyo wixii la mid ah.

Relief Karelo- block Kola

Kola Peninsula iyo Karelia ka kooban yihiin dhagaxyada, ku dhowaad oo aan razmyvam. Waxay yihiin boogeed biyaha. Inkasta oo webiyaasha maxaliga ah waxa lagu gartaa faniinkaba badan, waxay awoodi waayeen in ay horumariyaan dooxooyinka. Riverbeds halkan qaabkii Rapids iyo waterfalls. fatahaad biyo Niyadjabka badan oo la sameeyey waxaa baddii ku qaadista duubnaadaan.

gargaarka ee qaybtan ka mid ah guddiga non-uniform ah. On Peninsula Kola kala suunka buurta galbeed, oo u dhexeeyaa waa niyad jab weyn. In ka badan tundras Khibiny iyo Lavozerskimi xumaada ah buuraha ugu sareeya.

dhinaca bari ee Jasiiradda qaadataa banka daah slaboholmistoe badan biyaha badda Bagretsovogo. buuraha yar Galiyo la dooxada duniyooyinka Sea White.

In gobolka of Karelia ayaa muuqaalka sifo Baltic Shield. Landform duubnaadaan aagga markan denutatsionno-tectonic. The Earth ee qolof ah waxaa si xoogan dillaac. Niyadjabka, kuwaas oo meelaheeda dhoobada filiqsanaa iyo harooyinka ayaa la interspersed tiixtiix dhagax iyo buuro.

Close Finland buuraha taagay Maanselkya. Its dusha waa mid aad u dissected. On the duubnaadaan qaadaya gaadmada ah dhul glacial guud damaashaaday, accumulative iyo ekzaratsionnyh. Baltic Shield waxaa lixdii bilood la madaxdii idaad, dhagxaanka waaweyn, eskers, Oo tiixtiix moraine iyo dooxooyinka.

feature dhulka ee

geosegmenta qaadista duubnaadaan kala qaybiyey saddex: ku-Karelia Kola, Svecofennian iyo Sweco-Norwegian. In Russia ku dhowaad oo gebi ahaanba waa gobolka Karelia-Kola iyo dhulal koonfur-bari block Svecofennian.

Qaab-dhismeedka dhulka ee qeybta Karelia-Kola ma aha sida in aagga Badda White, lagu gartaa horumarka ballaaran qaababka Proterozoic. Tan waxa u sabab Saddexda qaybood ee keena: tirsan blocks kala duwan Geosyncline, horumarka taariikhiga ah ee kala duwan xaleef qoto dheer nabaad guurka. qeybta Karelo- Kola duwan block Belomorian xoog saaray.

feature caadiga ah ee qaab-dhismeedka tectonic qaybaha waa in stretch waqooyi-galbeed ee meelaha. Kaxeynayo sameeyey by dhagaxyada iyo laalaabka, mar mar kaliya u ogolaan isu weecin jihada suusho ama latitudes.

Kaxeynayo iyo laalaabka, ilaa jaray sida taageere KoonfurBari, isugu galbeed. Macdanta hiddo lala igneous ee qadiimiga ah iyo dhagaxyada metamorphic sameeyay Baltic Shield. Qaab dhismeedka Tectonic teedsan xuduudaha qaybaha gobolka bandhigay jab qoto dheer.

Under gacanta ugu kala jajabo waa meesha uu ka kaxeynayo adigoo Precambrian iyo metallogeny. Eyda waxa ay u qaybsamaan zones, kordhin ee waqooyi-galbeed. Iyagu waa isku midka ah in meelaha caanka ah ee dhacdo of dhismeedka dhulka Precambrian.

deposit

kayd Rich ee Baltic Shield. khayraadka Macdanta loo qaybiyey on suunka. fiiro gaar ah waxaa Dhawaaqa on seddex ka mid ah. In zone ubaxa ee Kola Peninsula ee senti qarinaayay copper-nickel. Si firfircoon uga bartay qaab-dhismeedka Vetrenyi Belt sida sujuud Karelia iyo beero Arkhangel'skii. In qeybta Karelia-Kola jeer xiiso leh quartzites ferruginous, schists, kyanite iyo pegmatites kala duwan. sawmills Cluster beddelo lithologic iyo stratigraphic iyo dhinacyada dhismaha tectonic.