Age ID Locality Notes Giersdorf_00000671 Mines are found in the La Crouzille district, in the Saint-Sylvestre granitic complex Giersdorf_00000672 Mines are found in the La Crouzille district, in the Saint-Sylvestre granitic complex Giersdorf_00000673 Mines are found in the La Crouzille district, in the Saint-Sylvestre granitic complex Giersdorf_00000674 Mines are found in the La Crouzille district, in the Saint-Sylvestre granitic complex Giersdorf_00000675 Mines are found in the La Crouzille district, in the Saint-Sylvestre granitic complex Giersdorf_00000676 Mines are found in the La Crouzille district, in the Saint-Sylvestre granitic complex Giersdorf_00000677 Mines are found in the La Crouzille district, in the Saint-Sylvestre granitic complex Giersdorf_00000678 Mines are found in the La Crouzille district, in the Saint-Sylvestre granitic complex Giersdorf_00000679 Mines are found in the La Crouzille district, in the Saint-Sylvestre granitic complex Giersdorf_00000680 Mines are found in the La Crouzille district, in the Saint-Sylvestre granitic complex Giersdorf_00000681 Mines are found in the La Crouzille district, in the Saint-Sylvestre granitic complex Giersdorf_00000682 Mines are found in the La Crouzille district, in the Saint-Sylvestre granitic complex Giersdorf_00000683 Mines are found in the La Crouzille district, in the Saint-Sylvestre granitic complex Giersdorf_00000684 Mines are found in the La Crouzille district, in the Saint-Sylvestre granitic complex Giersdorf_00000685 Mines are found in the La Crouzille district, in the Saint-Sylvestre granitic complex Giersdorf_00000686 Mines are found in the La Crouzille district, in the Saint-Sylvestre granitic complex Giersdorf_00000687 Mines are found in the La Crouzille district, in the Saint-Sylvestre granitic complex Giersdorf_00000688 Mines are found in the La Crouzille district, in the Saint-Sylvestre granitic complex Giersdorf_00000689 Mines are found in the La Crouzille district, in the Saint-Sylvestre granitic complex
Excel ID Max Age (Ma) Min Age (Ma) Age as listed in reference Dating Method Age Interpret Prioritized? Sample Source Sample Num Run Num Age from other Locality Dated Mineral Minerals explicitely stated as having this age Age applies to these Elements MinDat Locality ID Dated Locality (Max Age) Location as listed in reference Reference Reference DOI Reference ID Age Notes Edit Giersdorf_00000671 276 276 276 U-Pb Primary mineralization of pitchblende/uraninite with pyrite association high Yes Pyrite, Uraninite U 1720 Margnac Mine, Compreignac, Haute-Vienne, Nouvelle-Aquitaine, France Margnac Mine Leroy et al. (1984) 10.1016/0009-2541(84)90119-0 CG45_121 Age is given for the primary mineralization of the Uranium found in the area Edit Giersdorf_00000672 270 270 270 Pb Age for coffinitization of the uraninite and remobilization of U Yes Galena Pb 1720 Margnac Mine, Compreignac, Haute-Vienne, Nouvelle-Aquitaine, France Margnac Mine Leroy et al. (1984) 10.1016/0009-2541(84)90119-0 CG45_121 Age is derived from a 6 Ma window measured from Pb found in Galena that specifies the duration of the coffinitizaiton process as the source uraninite is altered and remobilized Edit Giersdorf_00000673 315 315 315 Pb-Pb uraninite NBS 981 1 Yes Uraninite Uraninite U 1720 Margnac Mine, Compreignac, Haute-Vienne, Nouvelle-Aquitaine, France Margnac Mine Leroy et al. (1984) 10.1016/0009-2541(84)90119-0 CG45_121 Ages are derived from Pb207/Pb206 ratios after correction Edit Giersdorf_00000674 300 300 300 Pb-Pb uraninite NBS 981 2 Yes Uraninite Uraninite U 1720 Margnac Mine, Compreignac, Haute-Vienne, Nouvelle-Aquitaine, France Margnac Mine Leroy et al. (1984) 10.1016/0009-2541(84)90119-0 CG45_121 Ages are derived from Pb207/Pb206 ratios after correction Edit Giersdorf_00000675 342 342 342 Pb-Pb uraninite NBS 981 3 Yes Uraninite Uraninite U 1720 Margnac Mine, Compreignac, Haute-Vienne, Nouvelle-Aquitaine, France Margnac Mine Leroy et al. (1984) 10.1016/0009-2541(84)90119-0 CG45_121 Ages are derived from Pb207/Pb206 ratios after correction Edit Giersdorf_00000676 390 390 390 Pb-Pb uraninite NBS 981 4 Yes Uraninite Uraninite U 1720 Margnac Mine, Compreignac, Haute-Vienne, Nouvelle-Aquitaine, France Margnac Mine Leroy et al. (1984) 10.1016/0009-2541(84)90119-0 CG45_121 Ages are derived from Pb207/Pb206 ratios after correction Edit Giersdorf_00000677 165 165 165 Pb-Pb uraninite NBS 981 5 Yes Uraninite Uraninite U 1720 Margnac Mine, Compreignac, Haute-Vienne, Nouvelle-Aquitaine, France Margnac Mine Leroy et al. (1984) 10.1016/0009-2541(84)90119-0 CG45_121 Ages are derived from Pb207/Pb206 ratios after correction Edit Giersdorf_00000678 250 250 250 Pb-Pb uraninite NBS 981 6 Yes Uraninite Uraninite U 1720 Margnac Mine, Compreignac, Haute-Vienne, Nouvelle-Aquitaine, France Margnac Mine Leroy et al. (1984) 10.1016/0009-2541(84)90119-0 CG45_121 Ages are derived from Pb207/Pb206 ratios after correction Edit Giersdorf_00000679 256 256 256 Pb-Pb uraninite NBS 981 7 Yes Uraninite Uraninite U 1720 Margnac Mine, Compreignac, Haute-Vienne, Nouvelle-Aquitaine, France Margnac Mine Leroy et al. (1984) 10.1016/0009-2541(84)90119-0 CG45_121 Ages are derived from Pb207/Pb206 ratios after correction Edit Giersdorf_00000680 426 426 426 Pb-Pb uraninite NBS 981 8 Yes Uraninite Uraninite U 1720 Margnac Mine, Compreignac, Haute-Vienne, Nouvelle-Aquitaine, France Margnac Mine Leroy et al. (1984) 10.1016/0009-2541(84)90119-0 CG45_121 Ages are derived from Pb207/Pb206 ratios after correction Edit Giersdorf_00000681 267 267 267 Pb-Pb uraninite NBS 981 9 Yes Uraninite Uraninite U 1720 Margnac Mine, Compreignac, Haute-Vienne, Nouvelle-Aquitaine, France Margnac Mine Leroy et al. (1984) 10.1016/0009-2541(84)90119-0 CG45_121 Ages are derived from Pb207/Pb206 ratios after correction Edit Giersdorf_00000682 262 262 262 Pb-Pb uraninite NBS 981 10 Yes Uraninite Uraninite U 1720 Margnac Mine, Compreignac, Haute-Vienne, Nouvelle-Aquitaine, France Margnac Mine Leroy et al. (1984) 10.1016/0009-2541(84)90119-0 CG45_121 Ages are derived from Pb207/Pb206 ratios after correction Edit Giersdorf_00000683 173 173 173 Pb-Pb uraninite NBS 981 11 Yes Uraninite Uraninite U 1720 Margnac Mine, Compreignac, Haute-Vienne, Nouvelle-Aquitaine, France Margnac Mine Leroy et al. (1984) 10.1016/0009-2541(84)90119-0 CG45_121 Ages are derived from Pb207/Pb206 ratios after correction Edit Giersdorf_00000684 255 255 255 Pb-Pb uraninite NBS 981 12 Yes Uraninite Uraninite U 1720 Margnac Mine, Compreignac, Haute-Vienne, Nouvelle-Aquitaine, France Margnac Mine Leroy et al. (1984) 10.1016/0009-2541(84)90119-0 CG45_121 Ages are derived from Pb207/Pb206 ratios after correction Edit Giersdorf_00000685 156 156 156 Pb-Pb uraninite NBS 981 13 Yes Uraninite Uraninite U 1720 Margnac Mine, Compreignac, Haute-Vienne, Nouvelle-Aquitaine, France Margnac Mine Leroy et al. (1984) 10.1016/0009-2541(84)90119-0 CG45_121 Ages are derived from Pb207/Pb206 ratios after correction Edit Giersdorf_00000686 180 180 180 Pb-Pb uraninite NBS 981 14 Yes Uraninite Uraninite U 1720 Margnac Mine, Compreignac, Haute-Vienne, Nouvelle-Aquitaine, France Margnac Mine Leroy et al. (1984) 10.1016/0009-2541(84)90119-0 CG45_121 Ages are derived from Pb207/Pb206 ratios after correction Edit Giersdorf_00000687 520 520 520 Pb-Pb The lead release effect of the alteration from uraninite to coffinite is calculated to be 6 Ma on this sample, and is the source of the 6 Ma window of alteration time. galena Fanay 574 Galena Yes Galena Galena 1720 Margnac Mine, Compreignac, Haute-Vienne, Nouvelle-Aquitaine, France Margnac Mine Leroy et al. (1984) 10.1016/0009-2541(84)90119-0 CG45_121 Ages are derived from Pb207/Pb206 ratios after correction Edit Giersdorf_00000688 315 315 315 Pb-Pb pyrite Fanay 574 Pyrite Yes Pyrite Pyrite 1720 Margnac Mine, Compreignac, Haute-Vienne, Nouvelle-Aquitaine, France Margnac Mine Leroy et al. (1984) 10.1016/0009-2541(84)90119-0 CG45_121 Ages are derived from Pb207/Pb206 ratios after correction Edit Giersdorf_00000689 175 170 175-170 Age is thought to correspond with the extension tectonism related to the opening of the Atlantic Ocean as well as the Tethys. Yes 1720 Margnac Mine, Compreignac, Haute-Vienne, Nouvelle-Aquitaine, France Margnac Mine Leroy et al. (1984) 10.1016/0009-2541(84)90119-0 CG45_121 Age is given for a secondary remobilization of the uraninite, which is undetected by mineralogical studies.
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