Lub cheeb tsam, qhov chaw nruab nrab ntawm St. Petersburg, kuj nplua nuj nyob rau hauv minerals. Tsis muaj kev tso nyiaj tseem ceeb hauv cheeb tsam no, cov nyiaj tsis muaj txiaj ntsig thiab tsis muaj txiaj ntsig tau raug tshuaj xyuas nyob rau theem pib, tab sis cov neeg cog lus tau nquag siv.
yam ntxwv dav dav ntawm cheeb tsam
Thaj chaw ntawm thaj av yog nyob rau hauv tag nrho ntawm East European (Lavxias teb sab) tiaj. Lub siab tshaj plaws point tsis txawm mus txog peb puas meters saum toj no hiav txwv theem. Nws yog qhov chaw tiaj tus ntawm lub nyem uas piav qhia qhov tseeb tias cov ore minerals ntawm Leningrad cheeb tsam yog xyaum tsis tuaj. Tab sis muaj cov hlau tsis yog hlau, feem ntau yog siv rau hauv kev tsim kho. Ntawm thaj chaw ntawm thaj av muaj qhov dav thiab tsim cov dej sib txuas, muaj yuav luag ob txhiab lub pas dej, suav nrog qhov loj tshaj plaws hauv Tebchaws Europe - Ladoga.
Thaj chaw nyob hauv thaj tsam taiga, yog li nws nplua nuj nyob hauvhav zoov (coniferous nyob rau sab qaum teb thiab sib xyaw nyob rau sab qab teb), uas nyob ntau tshaj li ib nrab ntawm cheeb tsam. Feem ntau ntawm thaj chaw yog swampy. Tab sis qhov no tsis tiv thaiv qhov yuav luag tiav kev tshawb fawb ntawm thaj av rau qhov muaj cov peev txheej ntxhia. Daim duab qhia chaw ntawm cov zaub mov hauv cheeb tsam Leningrad yog qhia hauv qab no.
Kev muaj cov zaub mov
Ntawm nees nkaum-rau lub npe ntawm cov ntxhia hauv cheeb tsam, tsuas yog rau qhov raug cais ua ore. Nyob rau tib lub sijhawm, ntau tshaj tsib puas deposits tau tshawb nrhiav, tab sis tsawg dua nees nkaum feem pua yog raug siv. Mineral peev txheej ntawm thaj av Leningrad yog txuam nrog tectonics - thaj chaw yog nyob ntawm qhov sib tshuam ntawm cov qauv tectonic. Yog li ntawd, sab qaum teb yog nplua nuj nyob rau hauv deposits ntawm cov khoom siv tsev - granite, pob zeb, gravel, xuab zeb. Cov txheej tuab ntawm cov pob zeb sedimentary ntawm sab qab teb muaj phosphorites thiab roj shales, bauxites, limestones thiab dolomites. Deposits ntawm peat, xuab zeb, av nplaum raug faib yuav luag sib npaug thoob plaws hauv cheeb tsam. Lub cheeb tsam dej ntawm lub Gulf of Finland muaj me me deposits ntawm hlau-manganese ores. Tsis tas li ntawd, muaj ob peb radon springs thiab ntxhia thermal dej hauv cheeb tsam.
Muaj mined tag nrho
Raws li qib ntawm kev txhim kho ntawm cov nyiaj tso cia, ntau pab pawg yuav tsum tau paub qhov txawv uas ua rau cov zaub mov ntawm thaj av Leningrad. Daim ntawv teev npe yuav tsum pib nrog cov pob zeb tsim tawm, uas suav nrog shales, phosphates thiab bauxites.
Bauxite ua lub luag haujlwm loj tshaj plaws hauv kev lag luam. Qhov tshwm sim ntawm ores nyob ze Boksitogorsk yog qhov ntiav, yog li kev tsuas yog nqa tawm tsuas yog nyob rau hauv txoj kev qhib. Lub extraction ntawm shale nyob ze lub nroog ntawm tib lub npe yog nqa tawm los ntawm mine txoj kev, vim hais tias qhov tob ntawm lawv tshwm sim mus txog peb puas meters. Phosphorite raw cov ntaub ntawv yog mined ze Kingisepp.
Kev txhim kho ib nrab
Cov pob zeb tsim ib nrab yog ntau hom khoom siv hauv tsev. Cov minerals ntawm Leningrad cheeb tsam yog nplua nuj nyob rau hauv granite, limestone, tsev thiab molding xuab zeb, cib thiab refractory av nplaum. Granite yog mined nyob rau sab qaum teb ntawm Karelian Isthmus los ntawm qhib qhov mining.
Cov pob zeb nplua nuj tshaj plaws nyob rau sab hnub tuaj ntawm thaj av. Lub ntsiab qhov chaw ntawm cov dej ntxhia yog carbonic (ncaj qha hauv St. Petersburg), sulfuric (ze Sablino) thiab sodium chloride (ze Sestroretsk). Ib tug loj tus naj npawb ntawm swamps tau txais kev pab raws li lub hauv paus rau lub xub ntiag ntawm peat deposits ntawm ib tug industrial scale. Nws cov ntawv thov - kev lag luam roj thiab kev ua liaj ua teb - tsis ntev los no tau hloov mus rau lwm cov ntaub ntawv. Yog li ntawd, peat reserves, nyob txhua qhov chaw, tab sis feem ntau nyob rau sab qab teb thiab sab hnub tuaj, yog xyaum tsis tsim.
Gold mining
Thaj chaw tsis nplua nuj vim muaj cov nyiaj kub ntau, tab sis cov chaw kub muaj nyob. Yeej, cov hlau no muaj nyob rau hauv deposits ntawm lwm yam minerals, ob qho tib si ore thiab non-ore. Tab sis nws muaj nyob rau hauv cov peev txheej no yog qhov tsawg heev. Yog li ntawd, kub mining nyob rau hauv lub Leningrad cheeb tsam tau lees paub tias yog unprofitable thiabtsis tau ua industrially. Tab sis nws yog qhov txaus siab rau amateur artisanal mining.
Cov yav tas yog tshwj xeeb tshaj yog tsim nyob rau hauv yav tas los qhov chaw ntawm industrial zus tau tej cov minerals, uas tam sim no tsis exploited. Tseem tsis muaj pob zeb diamond mining, txawm hais tias cov kav dej pob zeb diamond muaj nyob rau hauv me me hauv cheeb tsam.
Prospects
Tseem muaj cov zaub mov hauv thaj av Leningrad, cov deposits uas tsis koom nrog kev siv nyiaj txhua. Cov no muaj xws li deposits ntawm dolomites, ntxhia xim, quartzite thiab av nplaum. Tsis tas li ntawd, qee hom minerals yog nyob rau hauv txoj kev loj hlob, cov deposits uas tau pom nyob rau hauv lub cheeb tsam. Cov no yog magnetite ore, xim thiab ornamental pob zeb, roj, roj thiab bitumen.
