Genesis of carbonatites of fold belts (exemplified by the Urals)

Ivanov, K. S.; Valizer, P. M.; Erokhin, Yu. V.; Pogromskaya, O. E.

doi:10.1134/s1028334x10110036

Cited by 8 publications

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“…Ñêàçàííûì îïðåäåëÿåòñÿ íåîáõîäèìîñòü âûÿñíåíèÿ ïðîèñõîaeäåíèÿ (ìàãìàòè÷åñêîå èëè ìåòàìîðôè÷åñêîå) äîëîìèò-êàëüöèòîâûõ ïîðîä Þaeíîãî Óðàëà, Èëüìåíñêèõ ãîð è Ïëàñòîâñêîãî ðàéîíà â ÷àñòíîñòè. Ñ ýòîé öåëüþ ïîëåçíûì îêàaeåòñÿ ïîëó÷åíèå íîâûõ êðèòåðèåâ (îïðåäåëåíèå â íèõ èçîòîïîâ Ñ è Î, îíòîãåíè÷åñêèå íàáëþäåíèÿ íàä ñîîòíîøåíèÿìè ìèíåðàëîâ), ÷òî óaeå óñïåøíî ïðîäåëàíî äëÿ ðÿäà äðóãèõ ó÷àñòêîâ Óðàëà [8,32,38].…”

Section: ââåäåíèåunclassified

“…10) áëèçîê ê òàêîâîìó èññëåäîâàííûõ Ê. Èâàíîâûì è äð. [8] àíàëîãè÷íûõ ïîðîä äðóãèõ ðàéîíîâ Óðàëà. Áîëüøèíñòâî èç òî÷åê ïîïàäàåò â ïîëå êàðáîíàòèòîâ ñêëàä÷àòûõ îáëàñòåé [5], îäíà èç òî-÷åê (ÑÂ-1) ðàñïîëàãàåòñÿ â ïîëå îñàäî÷íûõ ìîðñêèõ êàðáîíàòîâ, äâå ïðîáû èç äàåê â Êó÷èíñêîì êàðüåðå è ïðîáà èç Ìðàìîðíîãî ìûñà íàõîäÿòñÿ ìåaeäó ïîëÿìè êàðáîíàòèòîâ ñêëàä÷àòûõ îáëàñòåé è îñàäî÷íûìè êàðáîíàòàìè.…”

Section: îñíîâíûå ðåçóëüòàòû è îáñóAeäåíèåunclassified

“…Cross -mineral present, empty cell -no information. [8]. Cal -êàëüöèò, Dol -äîëîìèò, Spl -øïèíåëü, Fo -ôîðñòåðèò, Di -äèîïñèä, Prg -ïàðãàñèò, F-Ap -ôòîðàïàòèò, Kfs -êàëèøïàò, Phl -ôëîãîïèò, Ttn -òèòàíèò, Scp -ñêàïîëèò, Qz -êâàðö, Gr -ãðàôèò, Vs -âàýñèò, Py -ïèðèò, Tr -òðåìîëèò, Grt -ãðàíàò, Zrn -öèðêîí.…”

Section: îñíîâíûå ðåçóëüòàòû è îáñóAeäåíèåmentioning

confidence: 99%

“…Smoleva in Geonauka CCU IG Komi SC UB RAS. Analysis 8 is borrowed from [8]. Cal -calcite, Dol -dolomite, Spl -spinel, Fo -forsterite, Di -diopside, Prg -pargasite, F-Ap -fluorapatite, Kfs -potassium feldspar, Phl -phlogopite, Ttn -titanite, Scp -scapolite, Qz -quartz, Gr -graphite, Vs -vaesite, Pypyrite, Tr -tremolite, Grt -garnet, Zrn -zircon.…”

Section: îñíîâíûå ðåçóëüòàòû è îáñóAeäåíèåmentioning

confidence: 99%

“…The ratio of O and C isotopes in calcite-dolomite rocks (carbonatites) of the Ilmeny Mountains and the Plastovsky district of the Chelyabinsk region (according to table2). Fields in the diagram (cited by[8]: 1 -primary magmatic carbonatites of Western Aldan, 2 -carbonatites of the platform framing, 3 -carbonatites of the folded regions[5], 4 -carbonatites, 5 -marine (sedimentary) carbonates[48]…”

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Isotopic evidences of magmatic nature of the dolomite-calcite bodies of the Ilmeny Mountains and the Plastovsky district of the South Urals

Korinevsky¹,

Korinevsky²

2020

Vestnik of Geosciences

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The data obtained for the first time on the isotopic composition of oxygen and carbon of calcites and graphites of dolomitecalcite rocks of the Ilmeny Mountains and dykes of a similar composition in the Plastovsky district have confirmed their magmatic genesis. The temperature of formation of carbonate bodies (590—1000 °Ñ), determined from the isotopic ratios of C and O in calcite and graphite, corresponds to the temperature range (600—900 °Ñ) of the formation of carbonatite associations. According to the same ratios of isotopes in calcites, the protoliths of carbonate rocks are located within the carbonatite fields of the folded regions and in the transition zone to carbonates of marine origin. This is probably due to the fact that these rocks are a product of carbonate magma during remelting of sedimentary carbonate rocks in subduction zones, or under the influence of the heat of granite intrusions.

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Section: îñíîâíûå ðåçóëüòàòû è îáñóAeäåíèåunclassified

Section: îñíîâíûå ðåçóëüòàòû è îáñóAeäåíèåmentioning

confidence: 99%

Section: îñíîâíûå ðåçóëüòàòû è îáñóAeäåíèåmentioning

confidence: 99%

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