Sophie Graul
Tallinn University of Technology, Tallinn, Estonia and France
Close-up of a felsic-biotite gneiss containing pyrrhotite (light gold blasts, elongated or prismatic) and graphite (silvery flakes).
The feldspar species identified by XRD are oligoclase and orthoclase.
The sample is related to the Svecofennian orogeny and was taken from drill core F-152, located in Lasila, in the Alutaguse province.
Reuse
Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported (CC BY-NC-ND 3.0) (opens in a new window)Credit: Sophie Graul (distributed via imaggeo.egu.eu)
Properties
Type
Image
Format
JPG
Size
870.3 KB
Width
1798 px
Height
1837 px
Aspect
1798:1837
Taken
2025
Coordinates
59.2422, 26.1843
Tint
Bluish black
Submitted
7 May 2026
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