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 | 281 | 249 | 0 | 3419 | |
Albite (*) | Feldspar | Na(AlSi3O8) | 281 | 249 | 0 | 8803 | |
Amblygonite (*) | None | LiAl(PO4)F | 281 | 249 | 0 | 244 | |
Antimony (*) | Arsenic | Sb | 281 | 249 | 0 | 363 | |
Arsenic (*) | Arsenic | As | 281 | 249 | 0 | 379 | |
Arsenolite (*) | Arsenolite | As2O3 | 281 | 249 | 0 | 231 | |
Arsenopyrite (*) | Arsenopyrite | FeAsS | 281 | 249 | 0 | 9052 | |
Autunite (*) | Autunite | Ca(UO2)2(PO4)2·10-12H2O | 281 | 249 | 0 | 1272 | |
Axinite-(Fe) (*) | Axinite | Ca4Fe2+2Al4[B2Si8O30](OH)2 | 281 | 249 | 0 | 260 | |
Bavenite (*) | None | Ca4Be2+xAl2-xSi9O26-x(OH)2+x (x = 0 to 1) | 281 | 249 | 0 | 255 | |
Beryl (*) | Beryl | Be3Al2Si6O18 | 281 | 249 | 0 | 4286 | |
Beryllonite (*) | Beryllonite | NaBe(PO4) | 281 | 249 | 0 | 47 | |
Calcite (*) | Calcite | Ca(CO3) | 281 | 249 | 0 | 27770 | |
Chalcopyrite (*) | Chalcopyrite | CuFeS2 | 281 | 249 | 0 | 27198 | |
Columbite-(Mn) (*) | Columbite | Mn2+Nb2O6 | 281 | 249 | 0 | 289 | |
Cordierite (*) | Beryl | Mg2Al4Si5O18 | 281 | 249 | 0 | 1008 | |
Datolite (*) | Gadolinite | CaB(SiO4)(OH) | 281 | 249 | 0 | 498 | |
Diopside (*) | Pyroxene | CaMgSi2O6 | 281 | 249 | 0 | 4135 | |
Elbaite (*) | Tourmaline | Na(Al1.5Li1.5)Al6(Si6O18)(BO3)3(OH)3(OH) | 281 | 249 | 0 | 520 | |
Epidote (*) | Epidote Clinozoisite | Ca2(Al2Fe3+)[Si2O7][SiO4]O(OH) | 281 | 249 | 0 | 8173 | |
Fersmite (*) | Columbite | CaNb2O6 | 281 | 249 | 0 | 83 | |
Fluorapatite (*) | Apatite | Ca5(PO4)3F | 281 | 249 | 0 | 2740 | |
Fluorite (*) | Fluorite | CaF2 | 281 | 249 | 0 | 9617 | |
Grossular (*) | Garnet | Ca3Al2(SiO4)3 | 281 | 249 | 0 | 1544 | |
Hedenbergite (*) | Pyroxene | CaFe2+Si2O6 | 281 | 249 | 0 | 741 | |
Herderite (*) | Gadolinite | CaBe(PO4)F | 281 | 249 | 0 | 20 | |
Laumontite (*) | Not in a structural group | CaAl2Si4O12·4H2O | 281 | 249 | 0 | 1271 | |
Löllingite (*) | Löllingite | FeAs2 | 281 | 249 | 0 | 762 | |
Malayaite (*) | Titanite | CaSnO(SiO4) | 281 | 249 | 0 | 40 | |
Marialite (*) | Scapolite | Na4Al3Si9O24Cl | 281 | 249 | 0 | 139 | |
Montebrasite (*) | None | LiAl(PO4)(OH) | 281 | 249 | 0 | 200 | |
Montmorillonite (*) | Clay Smectite-vermiculite | (Na,Ca)0.3(Al,Mg)2Si4O10(OH)2·nH2O | 281 | 249 | 0 | 1508 | |
Muscovite (*) | Mica Clay | KAl2(Si3Al)O10(OH)2 | 259 | 249 | 0 | 17380 | |
Orthoclase (*) | Feldspar | K(AlSi3O8) | 281 | 249 | 0 | 2349 | |
Palygorskite (*) | Palygorskite Clay | (Mg,Al)2Si4O10(OH)·4H2O | 281 | 249 | 0 | 306 | |
Petalite (*) | Not in a structural group | LiAlSi4O10 | 281 | 249 | 0 | 124 | |
Pollucite (*) | Analcime | Cs(Si2Al)O6·nH2O | 281 | 249 | 0 | 140 | |
Prehnite (*) | Prehnite | Ca2Al(Si3Al)O10(OH)2 | 281 | 249 | 0 | 1898 | |
Pyrite (*) | Pyrite | FeS2 | 281 | 249 | 0 | 39462 | |
Pyrrhotite (*) | Nickeline | Fe7S8 | 281 | 249 | 0 | 9056 | |
Quartz (*) | Quartz | SiO2 | 281 | 249 | 0 | 61156 | |
Scheelite (*) | Scheelite | Ca(WO4) | 281 | 249 | 0 | 4894 | |
Siderite (*) | Calcite | Fe(CO3) | 281 | 249 | 0 | 6417 | |
Stibiconite (*) | Pyrochlore | Sb3+Sb5+2O6(OH) | 281 | 249 | 0 | 446 | |
Stilbite-Ca (*) | Stilbite | NaCa4(Si27Al9)O72·28H2O | 281 | 249 | 0 | 268 | |
Tantalite-(Mn) (*) | Columbite | Mn2+Ta2O6 | 281 | 249 | 0 | 211 | |
Topaz (*) | Topaz | Al2SiO4F2 | 281 | 249 | 0 | 1476 | |
Tremolite (*) | Amphibole | Ca2(Mg5.0-4.5Fe2+0.0-0.5)Si8O22(OH)2 | 281 | 249 | 0 | 2562 | |
Wollastonite (*) | Wollastonite | CaSiO3 | 281 | 249 | 0 | 1247 | |
Zoisite (*) | Epidote | Ca2Al3[Si2O7][SiO4]O(OH) | 281 | 249 | 0 | 1025 |
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 | |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Bradley_2012_093 | 281 | 277 | 279±2 | Rb-Sr | 4572 | Meldon Aplite Quarry, Okehampton Hamlets, West Devon, Devon, England, UK | Meldon aplite | McCauley and Bradley (2014) | 10.3749/canmin.52.2.183 | CM52_183 | |||||||||||
Lucy_051 | 281 | 277 | 279 ± 2 | Rb-Sr | Preferred Age determined in study | E 38443, E 38444, E 38445, E 38446, E 38447, E 384 | 4572 | Meldon Aplite Quarry, Okehampton Hamlets, West Devon, Devon, England, UK | Meldon Quarry | Darbyshire et al. (1985) | 10.1144/gsjgs.142.6.1159 | JGSL142_1159 | Regression of the data yields an isochron age of 279 ± 2 | ||||||||
Lucy_052 | 265 | 255 | 260 ± 5 | K-Ar | Much younger mica age obtained, may be acounted for argon loss. | lepidolite | 4572 | Meldon Aplite Quarry, Okehampton Hamlets, West Devon, Devon, England, UK | Meldon Quarry | Darbyshire et al. (1985) | 10.1144/gsjgs.142.6.1159 | JGSL142_1159 | Using K-Ar Age on lepidolite, it was concluded that the aplite was much younger than the granite | ||||||||
Lucy_214 | 259 | 249 | 254 ± 5 | K-Ar | Age for Dartmoor Granite | muscovite | Muscovite | 4572 | Meldon Aplite Quarry, Okehampton Hamlets, West Devon, Devon, England, UK | Meldon Aplite | Miller et al (1964) | 10.1002/gj.3350040109 | GJ4_105 | New ages on the granites and derived rocks | |||||||
Lucy_082 | 295 | 295 | 295 | K/Ar | Age of cotact metamorphism | Yes | 4571 | Meldon Quarry (British Rail Quarry; British Railways Quarry; B. R. Quarry), Okehampton Hamlets, West Devon, Devon, England, UK | Meldon | Hawkes et al. (1978 | US4_51 | Age of contact metamorphism from intrusion of doloritic dyke and is equated to plutons in the area |
Sample | Source Locality | Reference URL |
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