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Record #126057:

Palaeoproterozoic evolution of the carbon isotope ratios of sedimentary carbonates in the Fennoscandian Shield / Juha A. Karhu.

Title: Palaeoproterozoic evolution of the carbon isotope ratios of sedimentary carbonates in the Fennoscandian Shield / Juha A. Karhu.
Author(s): Karhu, Juha A.
Date: 1993.
In: Geological Survey of Finland. Bulletin. (1993.), Vol. 371 (1993)
Abstract: δ¹³C and δ¹⁸O values from calcite and dolomite were found for 229 sedimentary carbonate rock samples from Palaeoproterozoic supracrustal belts of Fennoscandian Shield. In addition δ¹³C values of organic carbon were analysed for 28 black shale samples collected from formations directly connected to selected sedimentary carbonate units. Author comments on results and ties burial of organic carbon to rise in atmospheric oxygen at about 2.0Ga.
Notes:

Geological Survey of Finland. Bulletin. Vol. 371 :1-97 (1993).

Keywords: 54 -- Chemistry.
54.027 -- Isotope analysis.
546.21 -- Oxygen.
546.26 -- Carbon.
550.4 -- Geochemistry.
551.1/.4 -- Geology.
551.7 -- Stratigraphy.
551.73 -- Palaeozoic.
552 -- Petrology.
552.522 -- Shale.
B -- Geology and soil sciences.
(*3) -- Arctic regions.
(*55) -- European Arctic.
SPRI record no.: 126057

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100 1# ‡aKarhu, Juha A.
245 10 ‡aPalaeoproterozoic evolution of the carbon isotope ratios of sedimentary carbonates in the Fennoscandian Shield /‡cJuha A. Karhu.
260 ## ‡a[S.l.] :‡b[s.n.],‡c1993.
300 ## ‡ap. 1-97 :‡bdiags., tables, maps.
500 ## ‡aGeological Survey of Finland. Bulletin. Vol. 371 :1-97 (1993).
520 3# ‡aδ¹³C and δ¹⁸O values from calcite and dolomite were found for 229 sedimentary carbonate rock samples from Palaeoproterozoic supracrustal belts of Fennoscandian Shield. In addition δ¹³C values of organic carbon were analysed for 28 black shale samples collected from formations directly connected to selected sedimentary carbonate units. Author comments on results and ties burial of organic carbon to rise in atmospheric oxygen at about 2.0Ga.
650 07 ‡a54 -- Chemistry.‡2udc
650 07 ‡a54.027 -- Isotope analysis.‡2udc
650 07 ‡a546.21 -- Oxygen.‡2udc
650 07 ‡a546.26 -- Carbon.‡2udc
650 07 ‡a550.4 -- Geochemistry.‡2udc
650 07 ‡a551.1/.4 -- Geology.‡2udc
650 07 ‡a551.7 -- Stratigraphy.‡2udc
650 07 ‡a551.73 -- Palaeozoic.‡2udc
650 07 ‡a552 -- Petrology.‡2udc
650 07 ‡a552.522 -- Shale.‡2udc
650 07 ‡aB -- Geology and soil sciences.‡2local
651 #7 ‡a(*3) -- Arctic regions.‡2udc
651 #7 ‡a(*55) -- European Arctic.‡2udc
773 0# ‡7nnas ‡tGeological Survey of Finland. Bulletin. ‡gVol. 371 (1993) ‡wSPRI-47960
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