The Mineral Evolution database is currently under development.
The goal of this page is to present localities at which the mineral is found, and estimates of the oldest possible geologic age of the minerals at these localities.
Locality Name:Åkulla Mine (West), Boliden, Skellefte Mining District, Skellefteå, Västerbotten County, SwedenOldest recorded age at locality: 2500Youngest recorded age at locality: 541mindat Locality ID: 207804mindat URL:http://www.mindat.org/loc-207804.htmlTectonic Settings: Total number of sublocalities beneath "Åkulla Mine (West), Boliden, Skellefte Mining District, Skellefteå, Västerbotten County, Sweden": 0Total number of bottom-level sublocalities: 0Latitude: 64°54'26"NLongitude: 20°15'3"EDecimal Degree (lat, lon): 64.907222222222,20.250833333333
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.
No IMA Minerals occur at this locality according to mindatLocality Notes from all Ages at Locality:
Age ID
Locality Notes
Giersdorf_00000492
The Melestjärn mass flow is considered to be the uppermost part of volcanic stratigraphy of the Skellefte mining district.
Giersdorf_00000493
The Melestjärn mass flow is considered to be the uppermost part of volcanic stratigraphy of the Skellefte mining district.
Giersdorf_00000494
The Melestjärn mass flow is considered to be the uppermost part of volcanic stratigraphy of the Skellefte mining district.
Giersdorf_00000495
The Melestjärn mass flow is considered to be the uppermost part of volcanic stratigraphy of the Skellefte mining district.
Giersdorf_00000496
The Melestjärn mass flow is considered to be the uppermost part of volcanic stratigraphy of the Skellefte mining district.
Giersdorf_00000497
The Melestjärn mass flow is considered to be the uppermost part of volcanic stratigraphy of the Skellefte mining district.
Giersdorf_00000498
The Melestjärn mass flow is considered to be the uppermost part of volcanic stratigraphy of the Skellefte mining district.
Giersdorf_00000499
The Bjurvattnet Peperite is thought to represent the deepest part of the volcanic pile of the Skellefte mining district.
Giersdorf_00000500
The Bjurvattnet Peperite is thought to represent the deepest part of the volcanic pile of the Skellefte mining district.
Giersdorf_00000501
The Bjurvattnet Peperite is thought to represent the deepest part of the volcanic pile of the Skellefte mining district.
Giersdorf_00000502
The Bjurvattnet Peperite is thought to represent the deepest part of the volcanic pile of the Skellefte mining district.
Giersdorf_00000503
The Bjurvattnet Peperite is thought to represent the deepest part of the volcanic pile of the Skellefte mining district.
Giersdorf_00000515
The Boliden area consists of volcanic rocks with an epigenetic gold source, and is part of the Skellefte Mining District.
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.
Age is suspected to be approximately 1870 Ma, during which an extensional period of tectonic activity weakened the mantle and provided access for heavier materials to ascend upwards
Peperitic contact with supracrustal lithologies in its area suggest that the age of the Bjurvattnet sample should be considered as the minimum age for the deepest part of the volcanic pile.