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Home All issues Volume 191 (2020) BSGF - Earth Sci. Bull., 191 (2020) 35 Full HTML
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Table 1

Isotopic values of C and O measured on thin sections using a micro-drill and depending on the phase of calcite (C1 to C5) identified on thin sections. The δ13C and δ18O ratios are precise to ±0.02‰ and ±0.04‰ respectively. The 87Sr/86Sr isotopic ratios are provided with the 2δ error bar.

Sample Phase δ13C (PDB) δ18O (PDB) 87Sr/86Sr 2δ
R-a C1 −4,82 −4,69 0,706855 ±10.10−6
R-b C2 4,55 2,47 0,707069 ±14.10−6
R-c C2 4,03 2,04 0,707069 ±14.10−6
R-d C3–C4 8,46 1,8 0,707281 ±14.10−6
A1-a C1 −9,82 −4,16 0,706896 ±10.10−6
A1-b C1 −12,01 −6,08 0,706802 ±14.10−6
A1-ab average C1 −10,92 −5,12 0,706847  
A1-c C2 17,04 −0,43 0,707045 ±10.10−6
A1-d C2 16,72 −0,44 No value  
A1-e C2 16,32 −0,56 No value  
A1-f C2 15,96 −0,61 No value  
A1-g C2 16,64 −0,5 No value  
A1-cg average C2 16,54 −0,51 0,707045  
A1-h C3 9,25 1,62 no value  
A1-i C3 9,6 1,61 0,707195 ±14.10−6
A1-hi average C3 9,43 1,62 0,707195  
A1-j C4 8,77 1,74 No value  
A1-k C4 9,56 1,8 No value  
A1-l C4 8,77 1,66 0,707112 ±14.10−6
A1-jl average C4 9,03 1,73 0,707112  
N-a C1 −9,68 −5,36 0,706830 ±10.10−6
N-b C2 −4,12 −0,54 0,707040 ±10.10−6
N-c C3 −5,22 −1,52 0,707264 ±10.10−6
N-d C4 No value No value No value  
N-e C5 −22,05 0,65 0,707629 ±10.10−6
T-a C1 −8,59 −1,8 No value  
T-b C2 4,55 0,47 0,707038 ±7.10−6
T-c C3–C4 12,5 0,21 0,707250 ±7.10−6
T-d C5 −19,63 0,42 0,707602 ±7.10−6

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