Estonian Tremadocian black-shales
Sophie Graul
Tallinn University of Technology, Tallinn, Estonia and France
Cross-section of a drill core from the Aseri deposit, showing alternation between beds of Tremadocian black shale , also known as ‘Graptolite Argilite’ and phosphorite-bearing sandstone.
The black shales are enriched with organic matter and are investigated for their V, Mo and U potentials. Also, they contain authigenic K-feldspars. This image represents the first horizons formed at the boundaries between the Kallavere Formation and the Türisalu Formation.
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
PNG
Size
4.3 MB
Aspect
872:275
Width
2616 px
Height
825 px
Panorama
Coordinates
59.4477, 26.8591
Tint
Medium gray
Submitted
23 March 2024
Taken
2019
Comments
No comments yet. Be the first to share your thoughts.