Baltic ntaub thaiv npog: landform, tectonic qauv thiab minerals

Baltic ntaub thaiv npog hu ua tus hiob dobaykalskaya haib tais cheeb tsam ntawm lub Alps. Thoob plaws hauv lub sij hawm ntawm cov hav zoov nws nce steadily saum toj no hiav txwv theem. Baltic ntaub thaiv npog nws yaig. Lawv qhia cov sib sib zog nqus tsam nyob rau hauv lub granite-gneiss txoj siv ntawm lub ntiaj teb ua kiav txhab.

ntaub thaiv npog Qhov chaw

Loj heev captures lub projection ntawm lub sab qaum teb-western expanses ntawm lub East European platform. Nrog lawv sab ntawm sab qauv Caledonia-Scandinavia. Lawv paub rau crystalline pob zeb daim ntau quav tso cheeb tsam.

Karelia, Finland, Sweden, lub Kola ceg av qab teb npog lub Baltic ntaub thaiv npog. Qhov loj protrusion sau rau Murmansk thiab Leningrad cheeb tsam. Lawv nyob yuav luag tag nrho Scandinavian ceg av qab teb.

landforms

Nyob rau hauv tus ntawm glaciations tsim vaj huam sib luag nyem. Muaj ntau lub pas dej yog framed los ntawm winding coasts. Lawv txiav mus rau hauv lub teb chaws, txoj kev ua heev heev bays thiab Islands tuaj. Lub sab qaum teb yog ib feem ntawm lub pleated lifting tsim los ntawm ancient schists thiab igneous pob zeb. Cov lug tuaj mus rau qhov chaw qhov txhia chaw. Lawv tsuas yog nyob rau hauv ib txhia qhov chaw npog taus raincoats Quaternary sediments.

Crystalline Baltic ntaub thaiv npog yog tsis tau kev pab los ntawm hiav txwv dej nrog Lower Paleozoic era, vim hais tias cov neeg uas twb raug mus rau kev puas tsuaj. Crumpled folds nrog complex qauv tau ntev hardness thiab brittleness. Yog li ntawd, thaum cov kaub puab yog varied, muaj nyob tej kab nrib pleb, ua ib tug qhov chaw ntawm puas. Hom poob, txoj kev loj heev blocks.

Koom Haum Niam ntawm Lavxias teb sab Platform

Glaciers, zawv zawg down lub slopes ntawm cov Scandinavian roob, kev rhuav tseg cov crystalline qab daus pob zeb loosened ua ke tom Lavxias teb sab platform. Cov khoom ua si qauv, accumulating, tsim Moraine.

Melting glacier lub sij hawm ntev kwm plied lub Baltic ntaub thaiv npog. Daim ntawv ntawm nyem rau cov ledge nrhiav accumulative zoo. Lub tais cheeb tsam nyob eskers, drumlins, thiab hais txog.

Koom Haum Niam Karelo- thaiv Kola

Kola ceg av qab teb thiab Karelia yog muaj li ntawm pob zeb, yuav luag tsis-razmyvam. Lawv yog cov impervious rau cov dej. Txawm hais tias lub zos dej ntws yog yus muaj los ntawm ntau runoff, lawv tsis muaj peevxwm los tsim rau nram hav. Riverbeds cluttered no rapids thiab waterfalls. Dej dej nyab heev heev depressions tsim nyob rau daim ntau quav tso lifting pas dej.

Lub nyem nyob rau hauv no ib feem ntawm cov uas tsis yog niaj hnub zoo li board. Nyob rau Kola ceg av qab teb stretches sab hnub poob roob siv, uas yog hom twg ntawm yog ib tug loj kev nyuaj siab. Nyob rau Khibiny tundras thiab Lavozerskimi yuj siab lub roob siab peaks.

Lub sab hnub tuaj sab ntawm lub ceg av qab teb yuav siv sij hawm slaboholmistoe toj siab dai tshaj cov dej ntawm lub hiav txwv Bagretsovogo. Qhov no me me toj merges nrog lowland Framed Dawb Hiav txwv.

Nyob rau hauv lub cheeb tsam ntawm Karelia muaj ib tug yam ntxwv toj roob hauv pes Baltic ntaub thaiv npog. Landform daim ntau quav tso cheeb tsam nyob rau ntawm no point denutatsionno-tectonic. Lub ntiaj teb ua kiav txhab hnyav ncawv tawg. Depressions, uas yog tawg swamps thiab cov pas dej loj yog interspersed nrog tus mob rocky ridges thiab toj.

Close rau Finland ncav us txog toj Maanselkya. Nws saum npoo yog tsis tshua muaj neeg dissected. Nyob rau hauv daim ntau quav tso lifting universally ua kev zoo siab glacial struts, accumulative thiab ekzaratsionnyh configurations. Lub Baltic ntaub thaiv npog yog dotted nrog yaj lub hau, boulders loj loj, eskers, Moraine ridges thiab nram hav.

geological feature

Tais lifting geosegmenta muab faib mus rau hauv peb: lub Karelian-Kola, Svecofennian thiab Sweco-Norwegian. Nyob rau hauv Russia yuav luag nkaus yog cov Karelian-Kola cheeb tsam thiab sab qab teb-sab hnub tuaj ib cheeb tsam Svecofennian block.

Lub geological qauv ntawm cov Karelian-Kola ya yog tsis zoo li nyob rau hauv lub dawb Hiav txwv cheeb tsam, yus muaj los ntawm nws kim heev kev loj hlob Proterozoic formations. Qhov no yog vim peb ua: teej tug mus rau txawv blocks Geosyncline, lub keeb kwm kev loj hlob ntawm differing yaig tob slices. Karelo- Kola ya tsis zoo li Belomorian thaiv muaj zog rho.

Cov hom feature ntawm lub tectonic qauv ntawm cov feem yog nyob rau hauv sab qaum teb-western stretch ntawm qhov chaw. Ceg tsim los ntawm cov pob zeb thiab folds, tsuas puav cia lawv tus kheej thim meridian los yog latitudinal kev taw qhia.

Ceg thiab folds, tsoo li zoo li ib tug kiv cua los sab qab teb, sib nyob rau hauv lub qaum teb hnub poob. Minerals txhob txuas nrog lub ancient igneous thiab metamorphic pob zeb tsim Baltic ntaub thaiv npog. Tectonic qauv raws rau ib thaj tsam ntawm lub regional theem hais sib sib zog nqus cov pob txha lov.

Nyob rau hauv cov kev tswj ntawm tsob yog qhov chaw ntawm lub Precambrian sab ceg thiab lawv metallogeny. Breeds yog grouped rau hauv aav, extending nyob rau hauv sab qaum teb-sab hnub poob. Lawv yog cov uas tig mus rau qhov chaw ntawm tshwm sim ntawm Precambrian geological lug.

deposit

Rich deposits ntawm lub Baltic ntaub thaiv npog. Mineral kev pab yog muab faib rau cov siv. Kev mloog yog accented rau peb ntawm lawv. Nyob rau hauv lub paj cheeb tsam ntawm lub Kola ceg av qab teb zais tooj liab-npib tsib xee ores. Rau siab kawm Vetrenyi Siv qauv raws li Karelian prostrate thiab Arkhangel'skii pawg neeg thaj av. Nyob rau hauv lub Karelian-Kola ya nthuav lub sij hawm nrog ferruginous quartzites, schists, kyanite thiab ntau yam pegmatites. Sawv sawmills tom lithologic thiab stratigraphic thiab structural yam tectonic.