| A | This mineral is Anthropogenic. |
| G | This mineral is directly dated. |
| B | This mineral is reported as having this age. |
| Y | This mineral is using an age reported as an element mineralization period. |
| O | This mineral is using an age calculated from all data at the locality. |
| R | The age displayed for this mineral originates from a different, non-child locality. |
| P | The age displayed for this mineral is the range of ages for this mineral at all of this locality's children. |
| This mineral's age has not yet been recorded. |
| Mineral name | Structural Groups | IMA Formula | Max Age (Ma) | Min Age (Ma) | # of Sublocalities containing mineral | LOCALITY IDs, not mindat ids | # of localities containing mineral |
|---|---|---|---|---|---|---|---|
| Actinolite (*) | Amphibole | Ca2(Mg4.5-2.5Fe2+0.5-2.5)Si8O22(OH)2 | 2 | 288632,288636 | 3419 | ||
| Albite (*) | Feldspar | Na(AlSi3O8) | 1 | 288639 | 8803 | ||
| Almandine (*) | Garnet | Fe2+3Al2(SiO4)3 | 1 | 288637 | 2353 | ||
| Andalusite (*) | Andalusite | Al2SiO5 | 1 | 288649 | 1310 | ||
| Andradite (*) | Garnet | Ca3Fe3+2(SiO4)3 | 1 | 288637 | 1534 | ||
| Anthophyllite (*) | Amphibole | Mg2Mg5Si8O22(OH)2 | 1 | 288632 | 718 | ||
| Calcite (*) | Calcite | Ca(CO3) | 2 | 288632,288639 | 27770 | ||
| Chalcopyrite (*) | Chalcopyrite | CuFeS2 | 1 | 288632 | 27198 | ||
| Chloritoid (*) | Chloritoid | Fe2+Al2O(SiO4)(OH)2 | 1 | 288649 | 376 | ||
| Chromite (*) | Spinel | Fe2+Cr2O4 | 1 | 288645 | 3902 | ||
| Clinochlore (*) | Chlorite Clay | Mg5Al(AlSi3O10)(OH)8 | 1821.81 | 782.2 | 0 | 1756 | |
| Clinozoisite (*) | Clinozoisite Epidote | Ca2Al3[Si2O7][SiO4]O(OH) | 1821.81 | 821.9 | 1 | 288640 | 1025 |
| Cummingtonite (*) | Amphibole | Mg2Mg5Si8O22(OH)2 | 1 | 288632 | 327 | ||
| Epidote (*) | Epidote Clinozoisite | Ca2(Al2Fe3+)[Si2O7][SiO4]O(OH) | 1821.81 | 821.9 | 4 | 288632,288636,288639,288640 | 8173 |
| Ferrimolybdite (*) | None | Fe3+2(Mo6+O4)3·7H2O | 1 | 288639 | 345 | ||
| Ferro-actinolite (*) | Amphibole | Ca2(Mg2.5-0.0Fe2+2.5-5.0)Si8O22(OH)2 | 1 | 288632 | 129 | ||
| Fluorite (*) | Fluorite | CaF2 | 1738.2 | 782.2 | 2 | 288639,288642 | 9617 |
| Galena (*) | Rocksalt | PbS | 1 | 288633 | 24243 | ||
| Graphite (*) | None | C | 1 | 288632 | 2812 | ||
| Grunerite (*) | Amphibole | Fe2+2Fe2+5Si8O22(OH)2 | 1 | 288632 | 223 | ||
| Hematite (*) | Corundum | Fe2O3 | 1 | 288637 | 14640 | ||
| Ilmenite (*) | Corundum | Fe2+Ti4+O3 | 2 | 288632,288650 | 5433 | ||
| Magnesite (*) | Calcite | Mg(CO3) | 1 | 288645 | 1487 | ||
| Magnetite (*) | Spinel | Fe2+Fe3+2O4 | 1 | 288632 | 14899 | ||
| Molybdenite (*) | Molybdenite | MoS2 | 2 | 288629,288639 | 5800 | ||
| Muscovite (*) | Mica Clay | KAl2(Si3Al)O10(OH)2 | 1738.2 | 782.2 | 4 | 288639,288642,288645,288646 | 17380 |
| Phlogopite (*) | Mica Clay | KMg3(AlSi3O10)(OH)2 | 1 | 288650 | 2273 | ||
| Pyrite (*) | Pyrite | FeS2 | 3 | 288632,288633,288639 | 39462 | ||
| Pyrrhotite (*) | Nickeline | Fe7S8 | 1 | 288632 | 9056 | ||
| Quartz (*) | Quartz | SiO2 | 1821.81 | 782.2 | 9 | 288632,288636,288637,288639,288640,288642,288645,288646,288649 | 61156 |
| Sillimanite (*) | Not in a structural group | Al2SiO5 | 1 | 288649 | 1516 | ||
| Sphalerite (*) | Sphalerite | ZnS | 1 | 288632 | 21482 | ||
| Stilpnomelane (*) | Stilpnomelane Clay | (K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36·nH2O | 2 | 288632,288636 | 456 | ||
| Talc (*) | Clay Talc | Mg3Si4O10(OH)2 | 1 | 288645 | 3337 | ||
| Titanite (*) | Titanite | CaTi(SiO4)O | 1738.2 | 782.2 | 1 | 288642 | 4899 |
| Tremolite (*) | Amphibole | Ca2(Mg5.0-4.5Fe2+0.0-0.5)Si8O22(OH)2 | 1 | 288632 | 2562 | ||
| Zircon (*) | Zircon | Zr(SiO4) | 1 | 288637 | 5251 |
| 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| USGS-Rb-Sr-03464 | 1716.01 | 1716.01 | 1716.01 | Rb-Sr | whole rock | 51821 | Mt. Tom Quarry (Middle Inlet Quarry), Middle Inlet Township, Marinette Co., Wisconsin, USA | USGS-Rb-Sr | USGS-Rb-Sr | ||||||||||||
| USGS-U-Th-Pb-00114_207_235 | 1122.4 | 1088.4 | 1105.4±17 | 207_235 | zircon | Zircon | 51821 | Mt. Tom Quarry (Middle Inlet Quarry), Middle Inlet Township, Marinette Co., Wisconsin, USA | USGS-U-Th-Pb | USGS-U-Th-Pb | |||||||||||
| USGS-U-Th-Pb-00114_207_206 | 1711.4 | 1663.4 | 1687.4±24 | 207_206 | zircon | Zircon | 51821 | Mt. Tom Quarry (Middle Inlet Quarry), Middle Inlet Township, Marinette Co., Wisconsin, USA | USGS-U-Th-Pb | USGS-U-Th-Pb | |||||||||||
| USGS-U-Th-Pb-00114_206_238 | 845.9 | 821.9 | 833.9±12 | 206_238 | zircon | Zircon | 51821 | Mt. Tom Quarry (Middle Inlet Quarry), Middle Inlet Township, Marinette Co., Wisconsin, USA | USGS-U-Th-Pb | USGS-U-Th-Pb | |||||||||||
| USGS-U-Th-Pb-00113_207_235 | 1447.2 | 1405.2 | 1426.2±21 | 207_235 | zircon | Zircon | 51821 | Mt. Tom Quarry (Middle Inlet Quarry), Middle Inlet Township, Marinette Co., Wisconsin, USA | USGS-U-Th-Pb | USGS-U-Th-Pb | |||||||||||
| USGS-U-Th-Pb-00113_207_206 | 1790.7 | 1736.7 | 1763.7±27 | 207_206 | zircon | Zircon | 51821 | Mt. Tom Quarry (Middle Inlet Quarry), Middle Inlet Township, Marinette Co., Wisconsin, USA | USGS-U-Th-Pb | USGS-U-Th-Pb | |||||||||||
| USGS-U-Th-Pb-00113_206_238 | 1229.1 | 1193.1 | 1211.1±18 | 206_238 | zircon | Zircon | 51821 | Mt. Tom Quarry (Middle Inlet Quarry), Middle Inlet Township, Marinette Co., Wisconsin, USA | USGS-U-Th-Pb | USGS-U-Th-Pb | |||||||||||
| USGS-U-Th-Pb-00112_207_235 | 1373.2 | 1331.2 | 1352.2±21 | 207_235 | zircon | Zircon | 51821 | Mt. Tom Quarry (Middle Inlet Quarry), Middle Inlet Township, Marinette Co., Wisconsin, USA | USGS-U-Th-Pb | USGS-U-Th-Pb | |||||||||||
| USGS-U-Th-Pb-00112_206_238 | 1122.9 | 1090.9 | 1106.9±16 | 206_238 | zircon | Zircon | 51821 | Mt. Tom Quarry (Middle Inlet Quarry), Middle Inlet Township, Marinette Co., Wisconsin, USA | USGS-U-Th-Pb | USGS-U-Th-Pb | |||||||||||
| USGS-Rb-Sr-03478 | 1641.62 | 1641.62 | 1641.62 | Rb-Sr | age not evaluated | whole rock | 51821 | Mt. Tom Quarry (Middle Inlet Quarry), Middle Inlet Township, Marinette Co., Wisconsin, USA | USGS-Rb-Sr | USGS-Rb-Sr | |||||||||||
| USGS-Rb-Sr-03477 | 1620.97 | 1536.97 | 1578.97±42 | Rb-Sr | whole rock | 51821 | Mt. Tom Quarry (Middle Inlet Quarry), Middle Inlet Township, Marinette Co., Wisconsin, USA | USGS-Rb-Sr | USGS-Rb-Sr | ||||||||||||
| USGS-Rb-Sr-03466 | 1697.41 | 1697.41 | 1697.41 | Rb-Sr | whole rock | 51821 | Mt. Tom Quarry (Middle Inlet Quarry), Middle Inlet Township, Marinette Co., Wisconsin, USA | USGS-Rb-Sr | USGS-Rb-Sr | ||||||||||||
| USGS-Rb-Sr-03465 | 1821.81 | 1721.81 | 1771.81±50 | Rb-Sr | whole rock | 51821 | Mt. Tom Quarry (Middle Inlet Quarry), Middle Inlet Township, Marinette Co., Wisconsin, USA | USGS-Rb-Sr | USGS-Rb-Sr | ||||||||||||
| USGS-Rb-Sr-03463 | 1821.81 | 1721.81 | 1771.81±50 | Rb-Sr | whole rock | 51821 | Mt. Tom Quarry (Middle Inlet Quarry), Middle Inlet Township, Marinette Co., Wisconsin, USA | USGS-Rb-Sr | USGS-Rb-Sr | ||||||||||||
| USGS-U-Th-Pb-00112_207_206 | 1791.6 | 1737.6 | 1764.6±27 | 207_206 | zircon | Zircon | 51821 | Mt. Tom Quarry (Middle Inlet Quarry), Middle Inlet Township, Marinette Co., Wisconsin, USA | USGS-U-Th-Pb | USGS-U-Th-Pb | |||||||||||
| USGS-U-Th-Pb-00125_207_235 | 1051.3 | 1021.3 | 1036.3±15 | 207_235 | zircon | Zircon | 263330 | Niagara Township, Marinette Co., Wisconsin, USA | USGS-U-Th-Pb | USGS-U-Th-Pb | |||||||||||
| USGS-U-Th-Pb-00125_207_206 | 1613.8 | 1565.8 | 1589.8±24 | 207_206 | zircon | Zircon | 263330 | Niagara Township, Marinette Co., Wisconsin, USA | USGS-U-Th-Pb | USGS-U-Th-Pb | |||||||||||
| USGS-U-Th-Pb-00125_206_238 | 806.2 | 782.2 | 794.2±12 | 206_238 | zircon | Zircon | 263330 | Niagara Township, Marinette Co., Wisconsin, USA | USGS-U-Th-Pb | USGS-U-Th-Pb | |||||||||||
| USGS-U-Th-Pb-00124_207_235 | 1317.9 | 1277.9 | 1297.9±20 | 207_235 | zircon | Zircon | 263330 | Niagara Township, Marinette Co., Wisconsin, USA | USGS-U-Th-Pb | USGS-U-Th-Pb | |||||||||||
| USGS-U-Th-Pb-00124_207_206 | 1738.2 | 1686.2 | 1712.2±26 | 207_206 | zircon | Zircon | 263330 | Niagara Township, Marinette Co., Wisconsin, USA | USGS-U-Th-Pb | USGS-U-Th-Pb | |||||||||||
| USGS-U-Th-Pb-00124_206_238 | 1077.2 | 1047.2 | 1062.2±15 | 206_238 | zircon | Zircon | 263330 | Niagara Township, Marinette Co., Wisconsin, USA | USGS-U-Th-Pb | USGS-U-Th-Pb | |||||||||||
| USGS-U-Th-Pb-00123_207_235 | 1246.8 | 1210.8 | 1228.8±18 | 207_235 | zircon | Zircon | 263330 | Niagara Township, Marinette Co., Wisconsin, USA | USGS-U-Th-Pb | USGS-U-Th-Pb | |||||||||||
| USGS-U-Th-Pb-00123_207_206 | 1706.9 | 1654.9 | 1680.9±26 | 207_206 | zircon | Zircon | 263330 | Niagara Township, Marinette Co., Wisconsin, USA | USGS-U-Th-Pb | USGS-U-Th-Pb | |||||||||||
| USGS-U-Th-Pb-00123_206_238 | 1002.7 | 972.7 | 987.7±15 | 206_238 | zircon | Zircon | 263330 | Niagara Township, Marinette Co., Wisconsin, USA | USGS-U-Th-Pb | USGS-U-Th-Pb | |||||||||||
| USGS-U-Th-Pb-00122_207_235 | 1241.9 | 1205.9 | 1223.9±18 | 207_235 | zircon | Zircon | 263330 | Niagara Township, Marinette Co., Wisconsin, USA | USGS-U-Th-Pb | USGS-U-Th-Pb | |||||||||||
| USGS-U-Th-Pb-00122_207_206 | 1703.1 | 1653.1 | 1678.1±25 | 207_206 | zircon | Zircon | 263330 | Niagara Township, Marinette Co., Wisconsin, USA | USGS-U-Th-Pb | USGS-U-Th-Pb | |||||||||||
| USGS-U-Th-Pb-00122_206_238 | 997.8 | 967.8 | 982.8±15 | 206_238 | zircon | Zircon | 263330 | Niagara Township, Marinette Co., Wisconsin, USA | USGS-U-Th-Pb | USGS-U-Th-Pb |
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