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. |
Amphibole | Andalusite | Apatite | Calcite | Clay | Feldspar | Garnet | Humite | Mica | Nickeline |
None | Not in a structural group | Prehnite | Pyrite | Pyroxene | Spinel | Titanite | Vesuvianite | Wollastonite | Zircon |
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 |
---|---|---|---|---|---|---|---|
Andalusite (*) | Andalusite | Al2SiO5 | 1900 | 1870 | 0 | 1310 | |
Anorthite (*) | Feldspar | Ca(Al2Si2O8) | 1900 | 1870 | 0 | 1036 | |
Augite (*) | Pyroxene | (Ca,Mg,Fe)2Si2O6 | 1900 | 1870 | 0 | 2060 | |
Calcite (*) | Calcite | Ca(CO3) | 1900 | 1870 | 0 | 27770 | |
Chondrodite (*) | Humite | Mg5(SiO4)2F2 | 1900 | 1870 | 0 | 285 | |
Chromite (*) | Spinel | Fe2+Cr2O4 | 1900 | 1870 | 0 | 3902 | |
Diopside (*) | Pyroxene | CaMgSi2O6 | 1900 | 1870 | 0 | 4135 | |
Fluorapatite (*) | Apatite | Ca5(PO4)3F | 1900 | 1870 | 0 | 2740 | |
Grossular (*) | Garnet | Ca3Al2(SiO4)3 | 1900 | 1870 | 0 | 1544 | |
Hercynite (*) | Spinel | Fe2+Al2O4 | 1900 | 1870 | 0 | 407 | |
Pargasite (*) | Amphibole | NaCa2(Mg4Al)(Si6Al2)O22(OH)2 | 1900 | 1870 | 0 | 313 | |
Phlogopite (*) | Mica Clay | KMg3(AlSi3O10)(OH)2 | 1900 | 1870 | 0 | 2273 | |
Prehnite (*) | Prehnite | Ca2Al(Si3Al)O10(OH)2 | 1900 | 1870 | 0 | 1898 | |
Pyrite (*) | Pyrite | FeS2 | 1900 | 1870 | 0 | 39462 | |
Pyrrhotite (*) | Nickeline | Fe7S8 | 1900 | 1870 | 0 | 9056 | |
Sillimanite (*) | Not in a structural group | Al2SiO5 | 1900 | 1870 | 0 | 1516 | |
Spinel (*) | Spinel | MgAl2O4 | 1900 | 1870 | 0 | 1934 | |
Titanite (*) | Titanite | CaTi(SiO4)O | 1900 | 1870 | 0 | 4899 | |
Vesuvianite (*) | Vesuvianite | (Ca,Na)19(Al,Mg,Fe)13(SiO4)10(Si2O7)4(OH,F,O)10 | 1900 | 1870 | 0 | 1395 | |
Wollastonite (*) | Wollastonite | CaSiO3 | 1900 | 1870 | 0 | 1247 | |
Zircon (*) | Zircon | Zr(SiO4) | 1900 | 1870 | 0 | 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 | |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
MD29_150_Los | 1900 | 1870 | 1870-1900 | U-Pb | age of volcanic and early orogenic intrusives | Yes | 3159 | Los, Ljusdal, Gävleborg County, Sweden | Los mining district | Hallberg (1994) | 10.1007/BF00191512 | MD29_150 | U-Pb zircon dating of volcanic rocks and early orogenic intrusives in the Los, Bergslagen, and Skellefte districts yields ages of 1.87-1.90 Ga (Welin et al, 1980, Åberg et al. 1984; Åberg and Strömberg 1984; Wilson et al. 1985; Welin 1987; Claesson and Lundqvist 1990). Dating ofvo1canic rocks in central and southern Finland have also yielded U-Pb zircon ages of 1.87-1.90 Ga (Ah o 1979; Helovuori 1979; Patchett and Kouvo 1986; Welin 1987). This indicates that deposition of vo1canic rocks occurred over a time interval of about 30 M yrs in the central part of the Baltic Shield. |
Sample | Source Locality | Reference URL |
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