Cov kab ntawm cov kab mob hnub nyoog 540 lab xyoo tau pom nyob hauv Krasnoyarsk Thaj Chaw

Cov kab ntawm cov kab mob hnub nyoog 540 lab xyoo tau pom nyob hauv Krasnoyarsk Thaj Chaw
Cov kab ntawm cov kab mob hnub nyoog 540 lab xyoo tau pom nyob hauv Krasnoyarsk Thaj Chaw
Anonim

Cov neeg ua haujlwm ntawm Lub Tsev Haujlwm Roj av Geology thiab Geophysics npe tom qab UA Trofimuka SB RAS tshawb nrhiav cov pob zeb ntawm cov kab mob hauv lub cev thaum ub.

Cov kws tshawb fawb tau tshawb pom cov pob zeb hauv pob zeb tawm ntawm sab laug ntawm ntug dej Sukharikha (txoj cai ntawm tus dej Yenisei ze lub nroog Igarka), uas ntws hla sab qaum teb hnub poob ntawm Krasnoyarsk Thaj Chaw. Cov kev tshawb fawb no yuav pab cov kws tshawb fawb nkag siab tias lub neej tau tsim nyob ntawm kev sib txuas ntawm ob lub sijhawm tseem ceeb geological: Vendian (635-541 Ma) thiab Cambrian (541-485 Ma).

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a - Siberian platform thiab qhov chaw ntawm qhov kev tshawb nrhiav pom (daim duab peb sab qhia pom ib feem me me qhia hauv daim duab b); b - txoj haujlwm thaj chaw ntawm ntu uas qhov kev tshawb pom tau ua

Dej Sukharikha nyob ntawm Igarsk Uplift, uas yog qhov tshwj xeeb tshwj xeeb rau kev tshawb fawb, txij li Sukharikha Kev Tsim muaj ib qho ntawm qhov ua tiav thiab txuas ntxiv ntu ntawm Vendian thiab Cambrian kev hloov pauv tso nyiaj. Nws yog nyob ntawm qhov tig no, kwv yees li 540 lab lub xyoos dhau los, tias Cambrian tau tawg qhov chaw - nce ntxiv hauv cov naj npawb ntawm cov tsiaj txhu. Cov kab mob nrog cov pob txha pob zeb nyob hauv ntiaj teb, nrog rau cov pob txha caj dab, chordates thiab molluscs.

Qhov kev tshawb pom los ntawm cov kws tshawb fawb los ntawm Lub Tsev Haujlwm Saib Xyuas Kev Ruaj Ntseg thiab Teeb Meem ntawm Siberian Branch ntawm Lavxias Academy ntawm Kev Tshawb Fawb tau nyob hauv pob zeb txog 540 lab xyoo thiab tej zaum yuav yog qhov tseem ceeb rau kev rov tsim kho kev tsim kho cov kab ke hauv lub sijhawm Cambrian tawg. Thaum tshuaj xyuas cov ntawv luam tawm, cov neeg ua haujlwm ntawm Lub Tsev Haujlwm tau qhia tawm qhov tshwj xeeb ntawm tus cwj pwm ntawm cov tsiaj fossil thiab cov xwm txheej ntawm lawv qhov chaw nyob.

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Nrhiav tau los ntawm cov kws tshawb fawb ntawm INGG SB RAS ntawm Igarsk Uplift

Yog li, cov kab mob puag thaum ub nyob hauv qhov ntsug lossis me ntsis nkhaus nkhaus-qee qhov "kab lus" zoo ib yam li tsab ntawv U hauv cov duab. Cov kab ke no tuaj yeem dav li 1-2 cm thiab ntev 15-20 cm. Cov tsiaj uas ua rau lawv nyob hauv dej ntiav: lawv tau khawb mus rau hauv av thiab sifted los ntawm kev raug tshem tawm thiab cov av hauv qhov tshawb nrhiav cov as -ham. Nws tau ntseeg tias cov ntawv zoo li no tuaj yeem ua los ntawm annelids (annelids) lossis crustaceans.

Ua raws li qhov siab pom ntawm qhov pom nyob hauv thaj chaw me me, Lub Tsev Haujlwm cov kws tshaj lij xaus lus tias cov kab mob uas tau nkag mus rau hauv av tau nquag nquag tshawb nrhiav cov dej ntiav txawm tias nyob rau theem pib ntawm Cambrian tawg, hauv Lig Vendian.

Yav tom ntej, cov neeg ua haujlwm ntawm INGG SB RAS txoj haujlwm yuav ua haujlwm txuas ntxiv ntawm Igarskoe kev txhawb nqa.

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