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 USGS-Rb-Sr-00728 2792.82 2512.82 2652.82±140 Rb-Sr age of intrusion whole rock 123955 Penokee Group, Ironwood, Gogebic Iron Range, Gogebic Co., Michigan, USA USGS-Rb-Sr USGS-Rb-Sr Edit sedcu-00656 1500 1500 M. Proterozoic Cu 123960 Presque Isle Syncline Occurrence (Western Syncline; Amax Michigan), Keweenaw Copper, Gogebic Co., Michigan, USA Presque Isle Cox et al. (2003) USGSOFR03_107 Edit Kaitlynn000106 2647 2647 206Pb/238U Formation of cooling of tonalitic gneiss biotite Dl042 225412 Watersmeet, Gogebic Co., Michigan, USA Watersmeet Peterman et al. (1980) 10.1130/SPE182-p125 GSA182_125 Edit Kaitlynn000107 2732 2732 206Pb/238U Formation of cooling of tonalitic gneiss zircon Dl042 Zircon 225412 Watersmeet, Gogebic Co., Michigan, USA Watersmeet Peterman et al. (1980) 10.1130/SPE182-p125 GSA182_125 Edit Kaitlynn000108 2576 2576 206Pb/238U Formation of cooling of tonalitic gneiss zircon Dl042 Zircon 225412 Watersmeet, Gogebic Co., Michigan, USA Watersmeet Peterman et al. (1980) 10.1130/SPE182-p125 GSA182_125 Edit Kaitlynn000109 2830 2830 206Pb/238U Formation of cooling of tonalitic gneiss zircon M-83 Zircon 225412 Watersmeet, Gogebic Co., Michigan, USA Watersmeet Peterman et al. (1980) 10.1130/SPE182-p125 GSA182_125 Edit Kaitlynn000110 2507 2507 206Pb/238U Formation of cooling of tonalitic gneiss zircon M-83 Zircon 225412 Watersmeet, Gogebic Co., Michigan, USA Watersmeet Peterman et al. (1980) 10.1130/SPE182-p125 GSA182_125 Edit Kaitlynn000111 1451 1451 206Pb/238U Formation of cooling of tonalitic gneiss zircon M-83 Zircon 225412 Watersmeet, Gogebic Co., Michigan, USA Watersmeet Peterman et al. (1980) 10.1130/SPE182-p125 GSA182_125 Edit Kaitlynn000112 2670 2670 206Pb/238U Formation of cooling of tonalitic gneiss zircon M-83 Zircon 225412 Watersmeet, Gogebic Co., Michigan, USA Watersmeet Peterman et al. (1980) 10.1130/SPE182-p125 GSA182_125 Edit Kaitlynn000114 3009 3009 206Pb/238U Formation of cooling of tonalitic gneiss zircon M-83 Zircon 225412 Watersmeet, Gogebic Co., Michigan, USA Watersmeet Peterman et al. (1980) 10.1130/SPE182-p125 GSA182_125 Edit Kaitlynn000115 2276 2276 206Pb/238U Formation of cooling of tonalitic gneiss zircon M-83 Zircon 225412 Watersmeet, Gogebic Co., Michigan, USA Watersmeet Peterman et al. (1980) 10.1130/SPE182-p125 GSA182_125 Edit Kaitlynn000116 2021 2021 206Pb/238U Formation of cooling of tonalitic gneiss zircon M-112 Zircon 225412 Watersmeet, Gogebic Co., Michigan, USA Watersmeet Peterman et al. (1980) 10.1130/SPE182-p125 GSA182_125 Edit Kaitlynn000117 1752 1752 206Pb/238U Formation of cooling of tonalitic gneiss zircon M-48 Zircon 225412 Watersmeet, Gogebic Co., Michigan, USA Watersmeet Peterman et al. (1980) 10.1130/SPE182-p125 GSA182_125 Edit Kaitlynn000118 2194 2194 206Pb/238U Formation of cooling of tonalitic gneiss low zircon M-45H Zircon 225412 Watersmeet, Gogebic Co., Michigan, USA Watersmeet Peterman et al. (1980) 10.1130/SPE182-p125 GSA182_125 Edit Kaitlynn000119 1411 1411 206Pb/238U Formation of cooling of tonalitic gneiss zircon M-45H Zircon 225412 Watersmeet, Gogebic Co., Michigan, USA Watersmeet Peterman et al. (1980) 10.1130/SPE182-p125 GSA182_125 Edit Kaitlynn000120 1294 1294 206Pb/238U Formation of cooling of tonalitic gneiss zircon M-45H Zircon 225412 Watersmeet, Gogebic Co., Michigan, USA Watersmeet Peterman et al. (1980) 10.1130/SPE182-p125 GSA182_125 Edit Kaitlynn000219 3073 3073 207Pb/235U Formation of cooling of tonalitic gneiss biotite Dl042 225412 Watersmeet, Gogebic Co., Michigan, USA Watersmeet Peterman et al. (1980) 10.1130/SPE182-p125 GSA182_125 Edit Kaitlynn000220 3107 3107 207Pb/235U Formation of cooling of tonalitic gneiss zircon Dl042 Zircon 225412 Watersmeet, Gogebic Co., Michigan, USA Watersmeet Peterman et al. (1980) 10.1130/SPE182-p125 GSA182_125 Edit Kaitlynn000221 3006 3006 207Pb/235U Formation of cooling of tonalitic gneiss zircon Dl042 Zircon 225412 Watersmeet, Gogebic Co., Michigan, USA Watersmeet Peterman et al. (1980) 10.1130/SPE182-p125 GSA182_125 Edit Kaitlynn000222 3180 3180 207Pb/235U Formation of cooling of tonalitic gneiss zircon M-83 Zircon 225412 Watersmeet, Gogebic Co., Michigan, USA Watersmeet Peterman et al. (1980) 10.1130/SPE182-p125 GSA182_125 Edit Kaitlynn000223 3064 3064 207Pb/235U Formation of cooling of tonalitic gneiss zircon M-83 Zircon 225412 Watersmeet, Gogebic Co., Michigan, USA Watersmeet Peterman et al. (1980) 10.1130/SPE182-p125 GSA182_125 Edit Kaitlynn000224 2487 2487 207Pb/235U Formation of cooling of tonalitic gneiss zircon M-83 Zircon 225412 Watersmeet, Gogebic Co., Michigan, USA Watersmeet Peterman et al. (1980) 10.1130/SPE182-p125 GSA182_125 Edit Kaitlynn000225 3122 3122 207Pb/235U Formation of cooling of tonalitic gneiss zircon M-83 Zircon 225412 Watersmeet, Gogebic Co., Michigan, USA Watersmeet Peterman et al. (1980) 10.1130/SPE182-p125 GSA182_125 Edit Kaitlynn000227 3210 3210 207Pb/235U Formation of cooling of tonalitic gneiss zircon M-83 Zircon 225412 Watersmeet, Gogebic Co., Michigan, USA Watersmeet Peterman et al. (1980) 10.1130/SPE182-p125 GSA182_125 Edit Kaitlynn000228 2797 2797 207Pb/235U Formation of cooling of tonalitic gneiss zircon M-83 Zircon 225412 Watersmeet, Gogebic Co., Michigan, USA Watersmeet Peterman et al. (1980) 10.1130/SPE182-p125 GSA182_125 Edit Kaitlynn000229 2243 2243 207Pb/235U Formation of cooling of tonalitic gneiss zircon M-112 Zircon 225412 Watersmeet, Gogebic Co., Michigan, USA Watersmeet Peterman et al. (1980) 10.1130/SPE182-p125 GSA182_125 Edit Kaitlynn000230 1753 1753 207Pb/235U Formation of cooling of tonalitic gneiss zircon M-48 Zircon 225412 Watersmeet, Gogebic Co., Michigan, USA Watersmeet Peterman et al. (1980) 10.1130/SPE182-p125 GSA182_125 Edit Kaitlynn000231 2360 2360 207Pb/235U Formation of cooling of tonalitic gneiss zircon M-45H Zircon 225412 Watersmeet, Gogebic Co., Michigan, USA Watersmeet Peterman et al. (1980) 10.1130/SPE182-p125 GSA182_125 Edit Kaitlynn000232 1723 1723 207Pb/235U Formation of cooling of tonalitic gneiss zircon M-45H Zircon 225412 Watersmeet, Gogebic Co., Michigan, USA Watersmeet Peterman et al. (1980) 10.1130/SPE182-p125 GSA182_125 Edit Kaitlynn000233 1637 1637 207Pb/235U Formation of cooling of tonalitic gneiss zircon M-45H Zircon 225412 Watersmeet, Gogebic Co., Michigan, USA Watersmeet Peterman et al. (1980) 10.1130/SPE182-p125 GSA182_125 Edit Kaitlynn000239 3366 3366 207Pb/206Pb Formation of cooling of tonalitic gneiss biotite Dl042 225412 Watersmeet, Gogebic Co., Michigan, USA Watersmeet Peterman et al. (1980) 10.1130/SPE182-p125 GSA182_125 Edit Kaitlynn000240 3361 3361 207Pb/206Pb Formation of cooling of tonalitic gneiss zircon Dl042 Zircon 225412 Watersmeet, Gogebic Co., Michigan, USA Watersmeet Peterman et al. (1980) 10.1130/SPE182-p125 GSA182_125 Edit Kaitlynn000241 3309 3309 207Pb/206Pb Formation of cooling of tonalitic gneiss zircon Dl042 Zircon 225412 Watersmeet, Gogebic Co., Michigan, USA Watersmeet Peterman et al. (1980) 10.1130/SPE182-p125 GSA182_125 Edit Kaitlynn000242 3411 3411 207Pb/206Pb Formation of cooling of tonalitic gneiss high zircon M-83 Zircon 225412 Watersmeet, Gogebic Co., Michigan, USA Watersmeet Peterman et al. (1980) 10.1130/SPE182-p125 GSA182_125 Edit Kaitlynn000246 3351 3351 207Pb/206Pb Formation of cooling of tonalitic gneiss zircon M-83 Zircon 225412 Watersmeet, Gogebic Co., Michigan, USA Watersmeet Peterman et al. (1980) 10.1130/SPE182-p125 GSA182_125 Edit Kaitlynn000247 3340 3340 207Pb/206Pb Formation of cooling of tonalitic gneiss zircon M-83 Zircon 225412 Watersmeet, Gogebic Co., Michigan, USA Watersmeet Peterman et al. (1980) 10.1130/SPE182-p125 GSA182_125 Edit Kaitlynn000248 3199 3199 207Pb/206Pb Formation of cooling of tonalitic gneiss zircon M-83 Zircon 225412 Watersmeet, Gogebic Co., Michigan, USA Watersmeet Peterman et al. (1980) 10.1130/SPE182-p125 GSA182_125 Edit Kaitlynn000249 2454 2454 207Pb/206Pb Formation of cooling of tonalitic gneiss zircon M-112 Zircon 225412 Watersmeet, Gogebic Co., Michigan, USA Watersmeet Peterman et al. (1980) 10.1130/SPE182-p125 GSA182_125 Edit Kaitlynn000250 1757 1757 207Pb/206Pb Formation of cooling of tonalitic gneiss zircon M-48 Zircon 225412 Watersmeet, Gogebic Co., Michigan, USA Watersmeet Peterman et al. (1980) 10.1130/SPE182-p125 GSA182_125 Edit Kaitlynn000251 2510 2510 207Pb/206Pb Formation of cooling of tonalitic gneiss zircon M-45H Zircon 225412 Watersmeet, Gogebic Co., Michigan, USA Watersmeet Peterman et al. (1980) 10.1130/SPE182-p125 GSA182_125 Edit Kaitlynn000252 2128 2128 207Pb/206Pb Formation of cooling of tonalitic gneiss zircon M-45H Zircon 225412 Watersmeet, Gogebic Co., Michigan, USA Watersmeet Peterman et al. (1980) 10.1130/SPE182-p125 GSA182_125 Edit Kaitlynn000253 2113 2113 207Pb/206Pb Formation of cooling of tonalitic gneiss zircon M-45H Zircon 225412 Watersmeet, Gogebic Co., Michigan, USA Watersmeet Peterman et al. (1980) 10.1130/SPE182-p125 GSA182_125 Edit Kaitlynn000259 3177 3177 208Pb/232Th Formation of cooling of tonalitic gneiss biotite Dl042 225412 Watersmeet, Gogebic Co., Michigan, USA Watersmeet Peterman et al. (1980) 10.1130/SPE182-p125 GSA182_125 Edit Kaitlynn000260 3252 3252 208Pb/232Th Formation of cooling of tonalitic gneiss zircon Dl042 Zircon 225412 Watersmeet, Gogebic Co., Michigan, USA Watersmeet Peterman et al. (1980) 10.1130/SPE182-p125 GSA182_125 Edit Kaitlynn000261 2808 2808 208Pb/232Th Formation of cooling of tonalitic gneiss zircon Dl042 Zircon 225412 Watersmeet, Gogebic Co., Michigan, USA Watersmeet Peterman et al. (1980) 10.1130/SPE182-p125 GSA182_125 Edit Kaitlynn000262 3402 3402 208Pb/232Th Formation of cooling of tonalitic gneiss zircon M-83 Zircon 225412 Watersmeet, Gogebic Co., Michigan, USA Watersmeet Peterman et al. (1980) 10.1130/SPE182-p125 GSA182_125 Edit Kaitlynn000265 3300 3300 208Pb/232Th Formation of cooling of tonalitic gneiss zircon M-83 Zircon 225412 Watersmeet, Gogebic Co., Michigan, USA Watersmeet Peterman et al. (1980) 10.1130/SPE182-p125 GSA182_125 Edit Kaitlynn000267 3359 3359 208Pb/232Th Formation of cooling of tonalitic gneiss zircon M-83 Zircon 225412 Watersmeet, Gogebic Co., Michigan, USA Watersmeet Peterman et al. (1980) 10.1130/SPE182-p125 GSA182_125 Edit Kaitlynn000268 2899 2899 208Pb/232Th Formation of cooling of tonalitic gneiss zircon M-83 Zircon 225412 Watersmeet, Gogebic Co., Michigan, USA Watersmeet Peterman et al. (1980) 10.1130/SPE182-p125 GSA182_125 Edit Kaitlynn000269 2651 2651 208Pb/232Th Formation of cooling of tonalitic gneiss zircon M-112 Zircon 225412 Watersmeet, Gogebic Co., Michigan, USA Watersmeet Peterman et al. (1980) 10.1130/SPE182-p125 GSA182_125 Edit Kaitlynn000270 1550 1550 208Pb/232Th Formation of cooling of tonalitic gneiss zircon M-48 Zircon 225412 Watersmeet, Gogebic Co., Michigan, USA Watersmeet Peterman et al. (1980) 10.1130/SPE182-p125 GSA182_125 Edit Kaitlynn000271 2218 2218 208Pb/232Th Formation of cooling of tonalitic gneiss zircon M-45H Zircon 225412 Watersmeet, Gogebic Co., Michigan, USA Watersmeet Peterman et al. (1980) 10.1130/SPE182-p125 GSA182_125 Edit Kaitlynn000272 1130 1130 208Pb/232Th Formation of cooling of tonalitic gneiss zircon M-45H Zircon 225412 Watersmeet, Gogebic Co., Michigan, USA Watersmeet Peterman et al. (1980) 10.1130/SPE182-p125 GSA182_125 Edit Kaitlynn000273 669 669 208Pb/232Th Formation of cooling of tonalitic gneiss zircon M-45H Zircon 225412 Watersmeet, Gogebic Co., Michigan, USA Watersmeet Peterman et al. (1980) 10.1130/SPE182-p125 GSA182_125 Edit sedcu-00658 2000 2000 Lower Proterozoic Cu 225412 Watersmeet, Gogebic Co., Michigan, USA Watersmeet Cox et al. (2003) USGSOFR03_107 Edit USGS-Rb-Sr-00714 1772.86 1672.86 1722.86±50 Rb-Sr age of later metamorphism whole rock 125444 Watersmeet Dome, Gogebic Co., Michigan, USA USGS-Rb-Sr USGS-Rb-Sr Edit USGS-Rb-Sr-00715 2799.65 2799.65 2799.65 Rb-Sr minimum age of metamorphic crystallization whole rock 125444 Watersmeet Dome, Gogebic Co., Michigan, USA USGS-Rb-Sr USGS-Rb-Sr Edit USGS-Rb-Sr-00716 1772.86 1672.86 1722.86±50 Rb-Sr age of intrusion whole rock 125444 Watersmeet Dome, Gogebic Co., Michigan, USA USGS-Rb-Sr USGS-Rb-Sr Edit USGS-Rb-Sr-00717 1772.86 1672.86 1722.86±50 Rb-Sr age of later metamorphism whole rock 125444 Watersmeet Dome, Gogebic Co., Michigan, USA USGS-Rb-Sr USGS-Rb-Sr Edit USGS-Rb-Sr-00718 1772.86 1672.86 1722.86±50 Rb-Sr age of later metamorphism whole rock 125444 Watersmeet Dome, Gogebic Co., Michigan, USA USGS-Rb-Sr USGS-Rb-Sr Edit USGS-Rb-Sr-00719 1763.07 1663.07 1713.07±50 Rb-Sr age of later metamorphism plagioclase 125444 Watersmeet Dome, Gogebic Co., Michigan, USA USGS-Rb-Sr USGS-Rb-Sr Edit USGS-Rb-Sr-00720 1871.95 1771.95 1821.95±50 Rb-Sr age of later metamorphism microcline Microcline 125444 Watersmeet Dome, Gogebic Co., Michigan, USA USGS-Rb-Sr USGS-Rb-Sr Edit USGS-U-Th-Pb-00826_206_238 2194 2194 2194 206_238 zircon Zircon 125444 Watersmeet Dome, Gogebic Co., Michigan, USA USGS-U-Th-Pb USGS-U-Th-Pb Edit USGS-U-Th-Pb-00826_207_206 2510 2510 2510 207_206 zircon Zircon 125444 Watersmeet Dome, Gogebic Co., Michigan, USA USGS-U-Th-Pb USGS-U-Th-Pb Edit USGS-U-Th-Pb-00826_207_235 2360 2360 2360 207_235 zircon Zircon 125444 Watersmeet Dome, Gogebic Co., Michigan, USA USGS-U-Th-Pb USGS-U-Th-Pb Edit USGS-U-Th-Pb-00827_206_238 1411 1411 1411 206_238 zircon Zircon 125444 Watersmeet Dome, Gogebic Co., Michigan, USA USGS-U-Th-Pb USGS-U-Th-Pb Edit USGS-U-Th-Pb-00827_207_206 2128 2128 2128 207_206 zircon Zircon 125444 Watersmeet Dome, Gogebic Co., Michigan, USA USGS-U-Th-Pb USGS-U-Th-Pb Edit USGS-U-Th-Pb-00827_207_235 1723 1723 1723 207_235 zircon Zircon 125444 Watersmeet Dome, Gogebic Co., Michigan, USA USGS-U-Th-Pb USGS-U-Th-Pb Edit USGS-U-Th-Pb-00828_206_238 1294 1294 1294 206_238 zircon Zircon 125444 Watersmeet Dome, Gogebic Co., Michigan, USA USGS-U-Th-Pb USGS-U-Th-Pb Edit USGS-U-Th-Pb-00828_207_206 2113 2113 2113 207_206 zircon Zircon 125444 Watersmeet Dome, Gogebic Co., Michigan, USA USGS-U-Th-Pb USGS-U-Th-Pb Edit USGS-U-Th-Pb-00828_207_235 1637 1637 1637 207_235 zircon Zircon 125444 Watersmeet Dome, Gogebic Co., Michigan, USA USGS-U-Th-Pb USGS-U-Th-Pb Edit USGS-U-Th-Pb-00829_206_238 2647 2647 2647 206_238 zircon Zircon 125444 Watersmeet Dome, Gogebic Co., Michigan, USA USGS-U-Th-Pb USGS-U-Th-Pb Edit USGS-U-Th-Pb-00829_207_206 3366 3366 3366 207_206 zircon Zircon 125444 Watersmeet Dome, Gogebic Co., Michigan, USA USGS-U-Th-Pb USGS-U-Th-Pb Edit USGS-U-Th-Pb-00829_207_235 3073 3073 3073 207_235 zircon Zircon 125444 Watersmeet Dome, Gogebic Co., Michigan, USA USGS-U-Th-Pb USGS-U-Th-Pb Edit USGS-U-Th-Pb-00830_206_238 2732 2732 2732 206_238 zircon Zircon 125444 Watersmeet Dome, Gogebic Co., Michigan, USA USGS-U-Th-Pb USGS-U-Th-Pb Edit USGS-U-Th-Pb-00830_207_206 3361 3361 3361 207_206 zircon Zircon 125444 Watersmeet Dome, Gogebic Co., Michigan, USA USGS-U-Th-Pb USGS-U-Th-Pb Edit USGS-U-Th-Pb-00830_207_235 3107 3107 3107 207_235 zircon Zircon 125444 Watersmeet Dome, Gogebic Co., Michigan, USA USGS-U-Th-Pb USGS-U-Th-Pb Edit USGS-U-Th-Pb-00831_206_238 2576 2576 2576 206_238 zircon Zircon 125444 Watersmeet Dome, Gogebic Co., Michigan, USA USGS-U-Th-Pb USGS-U-Th-Pb Edit USGS-U-Th-Pb-00831_207_206 3309 3309 3309 207_206 zircon Zircon 125444 Watersmeet Dome, Gogebic Co., Michigan, USA USGS-U-Th-Pb USGS-U-Th-Pb Edit USGS-U-Th-Pb-00831_207_235 3006 3006 3006 207_235 zircon Zircon 125444 Watersmeet Dome, Gogebic Co., Michigan, USA USGS-U-Th-Pb USGS-U-Th-Pb Edit USGS-U-Th-Pb-00832_206_238 2647 2647 2647 206_238 zircon Zircon 125444 Watersmeet Dome, Gogebic Co., Michigan, USA USGS-U-Th-Pb USGS-U-Th-Pb Edit USGS-U-Th-Pb-00832_207_206 3366 3366 3366 207_206 zircon Zircon 125444 Watersmeet Dome, Gogebic Co., Michigan, USA USGS-U-Th-Pb USGS-U-Th-Pb Edit USGS-U-Th-Pb-00832_207_235 3073 3073 3073 207_235 zircon Zircon 125444 Watersmeet Dome, Gogebic Co., Michigan, USA USGS-U-Th-Pb USGS-U-Th-Pb Edit USGS-U-Th-Pb-00833_206_238 2732 2732 2732 206_238 zircon Zircon 125444 Watersmeet Dome, Gogebic Co., Michigan, USA USGS-U-Th-Pb USGS-U-Th-Pb Edit USGS-U-Th-Pb-00833_207_206 3361 3361 3361 207_206 zircon Zircon 125444 Watersmeet Dome, Gogebic Co., Michigan, USA USGS-U-Th-Pb USGS-U-Th-Pb Edit USGS-U-Th-Pb-00833_207_235 3107 3107 3107 207_235 zircon Zircon 125444 Watersmeet Dome, Gogebic Co., Michigan, USA USGS-U-Th-Pb USGS-U-Th-Pb Edit USGS-U-Th-Pb-00834_206_238 2576 2576 2576 206_238 zircon Zircon 125444 Watersmeet Dome, Gogebic Co., Michigan, USA USGS-U-Th-Pb USGS-U-Th-Pb Edit USGS-U-Th-Pb-00834_207_206 3309 3309 3309 207_206 zircon Zircon 125444 Watersmeet Dome, Gogebic Co., Michigan, USA USGS-U-Th-Pb USGS-U-Th-Pb Edit USGS-U-Th-Pb-00834_207_235 3006 3006 3006 207_235 zircon Zircon 125444 Watersmeet Dome, Gogebic Co., Michigan, USA USGS-U-Th-Pb USGS-U-Th-Pb
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