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| 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. |
| Age ID | Locality Notes |
|---|---|
| Michelle_0076 | Liparite, very near Tolfa (192390) |
| Michelle_0077 | Quartz latite |
| Michelle_0078 | Quartz latite |
| Michelle_0079 | Liparite |
| Michelle_0080 | Quartz latite |
| Michelle_0081 | Liparite |
| Michelle_0082 | Monzonitic porphyry |
| Michelle_0083 | Liparite quartz latite |
| 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| podchrome-00192 | 388 | 388 | pre-Early Devonian-Jurassic (388±17 Ma U-Pb zircon from felsic igneous rocks; 174 Ma K-Ar white mica from blueschists) | Cr | 93225 | Doriss Mine (Dorriss; Chrome F N; Chrome P N), Forest, Alleghany District (Forest District), Sierra Co., California, USA | Dorriss | Moiser et al. (2012) | USGSSIR2012_5157 | ||||||||||||
| podchrome-00193 | 388 | 388 | pre-Early Devonian-Jurassic (388±17 Ma U-Pb zircon from felsic igneous rocks; 174 Ma K-Ar white mica from blueschists) | Cr | 93253 | Evans Prospect (Oak), Forest, Alleghany District (Forest District), Sierra Co., California, USA | Evans Prospect | Moiser et al. (2012) | USGSSIR2012_5157 | ||||||||||||
| podchrome-00195 | 388 | 388 | pre-Early Devonian-Jurassic (388±17 Ma U-Pb zircon from felsic igneous rocks; 174 Ma K-Ar white mica from blueschists) | Cr | 93404 | Macchaus Mine, Mack House, Alleghany District (Forest District), Sierra Co., California, USA | Macchaus | Moiser et al. (2012) | USGSSIR2012_5157 | ||||||||||||
| podchrome-00194 | 388 | 388 | pre-Early Devonian-Jurassic (388±17 Ma U-Pb zircon from felsic igneous rocks; 174 Ma K-Ar white mica from blueschists) | Cr | 93261 | Finan Mine (F And F Group; Fainine; Finane Mine), Old Mountain House, Alleghany District (Forest District), Sierra Co., California, USA | Finan Prospect | Moiser et al. (2012) | USGSSIR2012_5157 | ||||||||||||
| NAVDAT-15383 | 10 | 5 | 7+3/-2 | whole rock | 15383 | 93478 | Oakland Mine, Calpine, Sierra Co., California, USA | NAVDAT | NAVDAT | ||||||||||||
| NAVDAT-18290 | 11.2 | 5.3 | 8.25±2.95 | 18290 | 93478 | Oakland Mine, Calpine, Sierra Co., California, USA | NAVDAT | NAVDAT | |||||||||||||
| NAVDAT-35157 | 7.1 | 6.9 | 7±0.1 | 35157 | 93478 | Oakland Mine, Calpine, Sierra Co., California, USA | NAVDAT | NAVDAT | |||||||||||||
| NAVDAT-130871 | 28 | 1 | 14+14/-13 | 130871 | 270394 | Babbitt Peak, Dog Valley District, Sierra Co., California, USA | NAVDAT | NAVDAT | |||||||||||||
| NAVDAT-130872 | 28 | 1 | 14+14/-13 | 130872 | 270394 | Babbitt Peak, Dog Valley District, Sierra Co., California, USA | NAVDAT | NAVDAT | |||||||||||||
| NAVDAT-130867 | 28 | 1 | 14+14/-13 | 130867 | 93624 | Summit Queen Group, Crystal Peak, Dog Valley District, Sierra Co., California, USA | NAVDAT | NAVDAT | |||||||||||||
| NAVDAT-130869 | 28 | 1 | 14+14/-13 | 130869 | 93624 | Summit Queen Group, Crystal Peak, Dog Valley District, Sierra Co., California, USA | NAVDAT | NAVDAT | |||||||||||||
| Michelle_0076 | 4.3 | 4.1 | 4.2±0.1 | K-Ar | Age of liparite | feldspar | K13 | 93202 | Cuba Placer Mine, China Flat, Downieville District, Sierra Co., California, USA | Rocca di Tolfa | Fornaseri (1985) | RDSIMF40_73 | Age of liparite | ||||||||
| Michelle_0077 | 3.4 | 2.6 | 3.0±0.4 | K-Ar | Age of quartz latite | biotite | K2 | 93202 | Cuba Placer Mine, China Flat, Downieville District, Sierra Co., California, USA | Sso della Strega | Fornaseri (1985) | RDSIMF40_73 | Age of quartz latite | ||||||||
| Michelle_0078 | 3.1 | 2.7 | 2.9±0.2 | K-Ar | Age of quartz latite | feldspar | K2 | 93202 | Cuba Placer Mine, China Flat, Downieville District, Sierra Co., California, USA | Sso della Strega | Fornaseri (1985) | RDSIMF40_73 | Age of quartz latite | ||||||||
| Michelle_0079 | 3.8 | 3.6 | 3.7±0.1 | K-Ar | Age of liparite | feldspar | K12 | 93202 | Cuba Placer Mine, China Flat, Downieville District, Sierra Co., California, USA | Fso d. Melledra | Fornaseri (1985) | RDSIMF40_73 | Age of liparite | ||||||||
| Michelle_0080 | 2.6 | 2.2 | 2.4±0.2 | K-Ar | Age of quartz latite | feldspar | K5 | 93202 | Cuba Placer Mine, China Flat, Downieville District, Sierra Co., California, USA | La Tolfaccia | Fornaseri (1985) | RDSIMF40_73 | Age of quartz latite | ||||||||
| Michelle_0081 | 2.2 | 2 | 2.1±0.1 | K-Ar | Age of liparite | feldspar | K3 | 93202 | Cuba Placer Mine, China Flat, Downieville District, Sierra Co., California, USA | La Montagnola | Fornaseri (1985) | RDSIMF40_73 | Age of liparite | ||||||||
| Michelle_0082 | 3.6 | 3.4 | 3.5±0.1 | K-Ar | Age of monzonitic porphyry | feldspar | K15 | 93202 | Cuba Placer Mine, China Flat, Downieville District, Sierra Co., California, USA | Pgio della Stella | Fornaseri (1985) | RDSIMF40_73 | Age of monzonitic porphyry | ||||||||
| Michelle_0083 | 3.4 | 3.2 | 3.3±0.1 | K-Ar | Age of Liparite quartz latite | sanidine | K14 | Sanidine | 93202 | Cuba Placer Mine, China Flat, Downieville District, Sierra Co., California, USA | Mt Riccio | Fornaseri (1985) | RDSIMF40_73 | Age of liparite quartz latite | |||||||
| podchrome-00189 | 388 | 388 | pre-Early Devonian-Jurassic (388±17 Ma U-Pb zircon from felsic igneous rocks; 174 Ma K-Ar white mica from blueschists) | Cr | 93512 | Oxford Mine (Oxford Mine And Mill; Oxford Lease And Mill; Becky; Case And Myers; Mt. Holly; Gold Bluff; Good Hope; Good Hope Extension No. 2; Jefferson No. 2 Claim; Milton Claim), Downieville, Downieville District, Sierra Co., California, USA | Oxford Pit 1 | Moiser et al. (2012) | USGSSIR2012_5157 | ||||||||||||
| podchrome-00187 | 388 | 388 | pre-Early Devonian-Jurassic (388±17 Ma U-Pb zircon from felsic igneous rocks; 174 Ma K-Ar white mica from blueschists) | Cr | 93431 | White Bear Mine (Unnamed Cr-Au Mine [1]), Fir Cap, Downieville District, Sierra Co., California, USA | White Bear | Moiser et al. (2012) | USGSSIR2012_5157 | ||||||||||||
| podchrome-00188 | 388 | 388 | pre-Early Devonian-Jurassic (388±17 Ma U-Pb zircon from felsic igneous rocks; 174 Ma K-Ar white mica from blueschists) | Cr | 93266 | Fraction Claim (Golconda Mine), Red Ant, Downieville District, Sierra Co., California, USA | Golconda Fraction | Moiser et al. (2012) | USGSSIR2012_5157 | ||||||||||||
| podchrome-00186 | 388 | 388 | pre-Early Devonian-Jurassic (388±17 Ma U-Pb zircon from felsic igneous rocks; 174 Ma K-Ar white mica from blueschists) | Cr | 216162 | Gibsonville, Gibsonville District, Sierra Co., California, USA | Gibsonville No. 2 | Moiser et al. (2012) | USGSSIR2012_5157 | ||||||||||||
| NAVDAT-11206 | 6.27 | 5.13 | 5.7±0.57 | whole rock | 11206 | 270500 | Granite Peak, Sierra Co., California, USA | NAVDAT | NAVDAT | ||||||||||||
| NAVDAT-11207 | 6.27 | 5.13 | 5.7±0.57 | whole rock | 11207 | 270500 | Granite Peak, Sierra Co., California, USA | NAVDAT | NAVDAT | ||||||||||||
| NAVDAT-11216 | 6.27 | 5.13 | 5.7±0.57 | whole rock | 11216 | 270500 | Granite Peak, Sierra Co., California, USA | NAVDAT | NAVDAT | ||||||||||||
| NAVDAT-11221 | 6.27 | 5.13 | 5.7±0.57 | whole rock | 11221 | 270500 | Granite Peak, Sierra Co., California, USA | NAVDAT | NAVDAT | ||||||||||||
| NAVDAT-130805 | 15 | 10 | 10.1+4.9/-0.1 | 130805 | 270500 | Granite Peak, Sierra Co., California, USA | NAVDAT | NAVDAT | |||||||||||||
| NAVDAT-130824 | 28 | 1 | 14+14/-13 | 130824 | 270500 | Granite Peak, Sierra Co., California, USA | NAVDAT | NAVDAT | |||||||||||||
| NAVDAT-130825 | 28 | 1 | 14+14/-13 | 130825 | 270500 | Granite Peak, Sierra Co., California, USA | NAVDAT | NAVDAT | |||||||||||||
| NAVDAT-130826 | 28 | 1 | 14+14/-13 | 130826 | 270500 | Granite Peak, Sierra Co., California, USA | NAVDAT | NAVDAT | |||||||||||||
| NAVDAT-130827 | 28 | 1 | 14+14/-13 | 130827 | 270500 | Granite Peak, Sierra Co., California, USA | NAVDAT | NAVDAT | |||||||||||||
| NAVDAT-130865 | 15 | 10 | 10.4+4.6/-0.4 | 130865 | 270500 | Granite Peak, Sierra Co., California, USA | NAVDAT | NAVDAT | |||||||||||||
| NAVDAT-87414 | 272.8 | 223.2 | 248±24.8 | 87414 | 93366 | Depot Hill Placer Mine (Joubert; Brosseau; Depot Hill Mine And Mill; Joubert Diggings), Indian Hill, Indian Hill District, Sierra Co., California, USA | NAVDAT | NAVDAT | |||||||||||||
| NAVDAT-87415 | 272.8 | 223.2 | 248±24.8 | 87415 | 93366 | Depot Hill Placer Mine (Joubert; Brosseau; Depot Hill Mine And Mill; Joubert Diggings), Indian Hill, Indian Hill District, Sierra Co., California, USA | NAVDAT | NAVDAT | |||||||||||||
| NAVDAT-87416 | 272.8 | 223.2 | 248±24.8 | 87416 | 93366 | Depot Hill Placer Mine (Joubert; Brosseau; Depot Hill Mine And Mill; Joubert Diggings), Indian Hill, Indian Hill District, Sierra Co., California, USA | NAVDAT | NAVDAT | |||||||||||||
| NAVDAT-87417 | 272.8 | 223.2 | 248±24.8 | 87417 | 93366 | Depot Hill Placer Mine (Joubert; Brosseau; Depot Hill Mine And Mill; Joubert Diggings), Indian Hill, Indian Hill District, Sierra Co., California, USA | NAVDAT | NAVDAT | |||||||||||||
| NAVDAT-87418 | 272.8 | 223.2 | 248±24.8 | 87418 | 93366 | Depot Hill Placer Mine (Joubert; Brosseau; Depot Hill Mine And Mill; Joubert Diggings), Indian Hill, Indian Hill District, Sierra Co., California, USA | NAVDAT | NAVDAT | |||||||||||||
| NAVDAT-87419 | 272.8 | 223.2 | 248±24.8 | 87419 | 93366 | Depot Hill Placer Mine (Joubert; Brosseau; Depot Hill Mine And Mill; Joubert Diggings), Indian Hill, Indian Hill District, Sierra Co., California, USA | NAVDAT | NAVDAT | |||||||||||||
| NAVDAT-87420 | 272.8 | 223.2 | 248±24.8 | 87420 | 93366 | Depot Hill Placer Mine (Joubert; Brosseau; Depot Hill Mine And Mill; Joubert Diggings), Indian Hill, Indian Hill District, Sierra Co., California, USA | NAVDAT | NAVDAT | |||||||||||||
| NAVDAT-87421 | 272.8 | 223.2 | 248±24.8 | 87421 | 93366 | Depot Hill Placer Mine (Joubert; Brosseau; Depot Hill Mine And Mill; Joubert Diggings), Indian Hill, Indian Hill District, Sierra Co., California, USA | NAVDAT | NAVDAT | |||||||||||||
| NAVDAT-87422 | 272.8 | 223.2 | 248±24.8 | 87422 | 93366 | Depot Hill Placer Mine (Joubert; Brosseau; Depot Hill Mine And Mill; Joubert Diggings), Indian Hill, Indian Hill District, Sierra Co., California, USA | NAVDAT | NAVDAT | |||||||||||||
| NAVDAT-87423 | 272.8 | 223.2 | 248±24.8 | 87423 | 93366 | Depot Hill Placer Mine (Joubert; Brosseau; Depot Hill Mine And Mill; Joubert Diggings), Indian Hill, Indian Hill District, Sierra Co., California, USA | NAVDAT | NAVDAT | |||||||||||||
| NAVDAT-87424 | 272.8 | 223.2 | 248±24.8 | 87424 | 93366 | Depot Hill Placer Mine (Joubert; Brosseau; Depot Hill Mine And Mill; Joubert Diggings), Indian Hill, Indian Hill District, Sierra Co., California, USA | NAVDAT | NAVDAT | |||||||||||||
| NAVDAT-87425 | 272.8 | 223.2 | 248±24.8 | 87425 | 93366 | Depot Hill Placer Mine (Joubert; Brosseau; Depot Hill Mine And Mill; Joubert Diggings), Indian Hill, Indian Hill District, Sierra Co., California, USA | NAVDAT | NAVDAT | |||||||||||||
| NAVDAT-87426 | 272.8 | 223.2 | 248±24.8 | 87426 | 93366 | Depot Hill Placer Mine (Joubert; Brosseau; Depot Hill Mine And Mill; Joubert Diggings), Indian Hill, Indian Hill District, Sierra Co., California, USA | NAVDAT | NAVDAT | |||||||||||||
| NAVDAT-87427 | 272.8 | 223.2 | 248±24.8 | 87427 | 93366 | Depot Hill Placer Mine (Joubert; Brosseau; Depot Hill Mine And Mill; Joubert Diggings), Indian Hill, Indian Hill District, Sierra Co., California, USA | NAVDAT | NAVDAT | |||||||||||||
| NAVDAT-87428 | 272.8 | 223.2 | 248±24.8 | 87428 | 93366 | Depot Hill Placer Mine (Joubert; Brosseau; Depot Hill Mine And Mill; Joubert Diggings), Indian Hill, Indian Hill District, Sierra Co., California, USA | NAVDAT | NAVDAT | |||||||||||||
| NAVDAT-87429 | 272.8 | 223.2 | 248±24.8 | 87429 | 93366 | Depot Hill Placer Mine (Joubert; Brosseau; Depot Hill Mine And Mill; Joubert Diggings), Indian Hill, Indian Hill District, Sierra Co., California, USA | NAVDAT | NAVDAT | |||||||||||||
| podchrome-00191 | 203 | 203 | Lower-Middle Jurassic (203-171 Ma U-Pb zircons from metadiorite and metatonalite) | Cr | 93571 | Roupe Property (Big Chance; Camptonville Property; Big Chrome), Indian Hill, Indian Hill District, Sierra Co., California, USA | Roupe Property | Moiser et al. (2012) | USGSSIR2012_5157 | ||||||||||||
| podchrome-00218 | 204 | 204 | Upper Triassic-Lower Jurassic or older (204±2 Ma U-Pb zircon on leucodiorite) | Cr | 74350 | Suzy Bell Mine (Lucky Strike Mine; Dickey And Driesbach Mine; Brendt No. 1 Claim), Sardine Peak, Sierra Co., California, USA | Suzy Bell | Moiser et al. (2012) | USGSSIR2012_5157 | ||||||||||||
| podchrome-00190 | 400 | 400 | Ordovician-Devonian? (fossils); 1318-561 Ma U-Pb detrital zircon | Cr | 93430 | Milton Claim (Redmayne And McGonigal Prospect), Sierra City, Sierra City District, Sierra Co., California, USA | Milton Claim | Moiser et al. (2012) | USGSSIR2012_5157 |
| Sample | Source Locality | Reference URL |
|---|---|---|
All locality data graciously provided by mindat.org
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