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. |
Apatite | Autunite | Beryl | Clay | Feldspar | Mica | None | Not in a structural group | Quartz | Tourmaline |
Autunite (*) | Bertrandite (*) | Beryl (*) | Fluorapatite (*) | Microcline (*) |
Muscovite (*) | Quartz (*) | Schorl (*) | Uranophane-α (*) |
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 |
---|---|---|---|---|---|---|---|
Autunite (*) | Autunite | Ca(UO2)2(PO4)2·10-12H2O | 990 | 230.03 | 0 | 1272 | |
Bertrandite (*) | Not in a structural group | Be4Si2O7(OH)2 | 990 | 230.03 | 0 | 606 | |
Beryl (*) | Beryl | Be3Al2Si6O18 | 990 | 230.03 | 0 | 4286 | |
Fluorapatite (*) | Apatite | Ca5(PO4)3F | 990 | 230.03 | 0 | 2740 | |
Microcline (*) | Feldspar | K(AlSi3O8) | 398 | 382 | 0 | 4924 | |
Muscovite (*) | Mica Clay | KAl2(Si3Al)O10(OH)2 | 242.03 | 230.03 | 0 | 17380 | |
Quartz (*) | Quartz | SiO2 | 990 | 230.03 | 0 | 61156 | |
Schorl (*) | Tourmaline | NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH) | 990 | 230.03 | 0 | 2705 | |
Uranophane-α (*) | None | Ca(UO2)2(SiO3OH)2·5H2O | 990 | 230.03 | 0 | 890 |
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-06237 | 990 | 918 | 954±36 | Rb-Sr | plagioclase | 33585 | I-93/Dascomb Rd. Area, Andover, Essex Co., Massachusetts, USA | USGS-Rb-Sr | USGS-Rb-Sr | ||||||||||||
USGS-Rb-Sr-06238 | 398 | 382 | 390±8 | Rb-Sr | microcline | Microcline | 33585 | I-93/Dascomb Rd. Area, Andover, Essex Co., Massachusetts, USA | USGS-Rb-Sr | USGS-Rb-Sr | |||||||||||
USGS-Rb-Sr-06239 | 242.03 | 230.03 | 236.03±6 | Rb-Sr | muscovite | Muscovite | 33585 | I-93/Dascomb Rd. Area, Andover, Essex Co., Massachusetts, USA | USGS-Rb-Sr | USGS-Rb-Sr | |||||||||||
USGS-Rb-Sr-06241 | 242.03 | 230.03 | 236.03±6 | Rb-Sr | muscovite | Muscovite | 33585 | I-93/Dascomb Rd. Area, Andover, Essex Co., Massachusetts, USA | USGS-Rb-Sr | USGS-Rb-Sr |
Sample | Source Locality | Reference URL |
---|---|---|
All locality data graciously provided by mindat.org
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