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. |
Alluaudite | Alunite | Apatite | Arrojadite | Beryl | Bjarebyite | Childrenite | Clay | Feldspar | Fillowite |
Garnet | Graftonite | Mica | None | Quartz | Spinel | Tourmaline | Triplite | Wagnerite |
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 |
---|---|---|---|---|---|---|---|
Albite (*) | Feldspar | Na(AlSi3O8) | 2772 | 2450 | 0 | 8803 | |
Alluaudite (*) | Alluaudite | NaMnFe3+2(PO4)3 | 2772 | 2450 | 0 | 94 | |
Beryl (*) | Beryl | Be3Al2Si6O18 | 2772 | 2450 | 0 | 4286 | |
Beusite (*) | Graftonite | Mn2+Mn2+2(PO4)2 | 2772 | 2450 | 0 | 39 | |
Bobfergusonite (*) | None | Na2Mn2+5Fe3+Al(PO4)6 | 2772 | 2450 | 0 | 2 | |
Chlorapatite (*) | Apatite | Ca5(PO4)3Cl | 2772 | 2450 | 0 | 203 | |
Dickinsonite-(KMnNa) (*) | Arrojadite | K(NaMn)CaNa3AlMn13(PO4)12(OH)2 | 2772 | 2450 | 0 | 26 | |
Eosphorite (*) | Childrenite | Mn2+Al(PO4)(OH)2·H2O | 2772 | 2450 | 0 | 128 | |
Fillowite (*) | Fillowite | Na3CaMn2+11(PO4)9 | 2772 | 2450 | 0 | 14 | |
Fluorapatite (*) | Apatite | Ca5(PO4)3F | 2772 | 2450 | 0 | 2740 | |
Gahnite (*) | Spinel | ZnAl2O4 | 2772 | 2450 | 0 | 445 | |
Goyazite (*) | Alunite | SrAl3(PO4)(PO3OH)(OH)6 | 2772 | 2450 | 0 | 173 | |
Manitobaite (*) | Alluaudite | Na16Mn2+25Al8(PO4)30 | 2772 | 2450 | 0 | 1 | |
Microcline (*) | Feldspar | K(AlSi3O8) | 2772 | 2450 | 0 | 4924 | |
Muscovite (*) | Mica Clay | KAl2(Si3Al)O10(OH)2 | 2772 | 2450 | 0 | 17380 | |
Perloffite (*) | Bjarebyite | BaMn2+2Fe3+2(PO4)3(OH)3 | 2772 | 2450 | 0 | 7 | |
Pieczkaite (*) | Apatite | Mn5(PO4)3Cl | 2772 | 2450 | 0 | 2 | |
Quartz (*) | Quartz | SiO2 | 2772 | 2450 | 0 | 61156 | |
Schorl (*) | Tourmaline | NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH) | 2772 | 2450 | 0 | 2705 | |
Spessartine (*) | Garnet | Mn2+3Al2(SiO4)3 | 2772 | 2450 | 0 | 1214 | |
Triplite (*) | Triplite | Mn2+2(PO4)F | 2772 | 2450 | 0 | 233 | |
Triploidite (*) | Wagnerite | Mn2+2(PO4)(OH) | 2772 | 2450 | 0 | 29 |
Age ID | Locality Notes |
---|---|
Scott-GCA51_1101-0005 | The Cross Lake pegmatite field occurs over an area of approximately 200 km^2 at the western margin of the subprovince and about 30 km east of the Superior-Churchill boundary. |
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_008 | 2772 | 2758 | 2765±7 | U/Pb | zircon | Yes | Zircon | 231259 | Cross Lake, Manitoba, Canada | Cross Lake | McCauley and Bradley (2014) | 10.3749/canmin.52.2.183 | CM52_183 | ||||||||
Scott-GCA51_1101-0005 | 2500 | 2450 | 2500-2450 | Rb-Sr | age of intrusion | k-feldspar | 6G | Yes | 231259 | Cross Lake, Manitoba, Canada | Cross Lake | Clark and Černý (1987) | 10.1016/0016-7037(87)90112-8 | GECA51_1101 | Table 1 |
Sample | Source Locality | Reference URL |
---|---|---|
R110143 | Pegmatite No. 22 (Gottcha Claim), North Group, Cross Lake, Manitoba, Canada | https://rruff.info/R110143 |
R130259 | Pegmatite No. 22 (Gottcha Claim), North Group, Cross Lake, Manitoba, Canada | https://rruff.info/R130259 |
R130260 | Pegmatite No. 22 (Gottcha Claim), North Group, Cross Lake, Manitoba, Canada | https://rruff.info/R130260 |
All locality data graciously provided by mindat.org
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