Pyritised shell fragment from the Toolse phosphorite deposit, Estonia
by Sophie Graul, Tallinn University of Technology, Tallinn, Estonia and France
Pyritised shell fragment from the phosphorite of the Toolse deposit.
Suujõgi Member, Kallavere Formation, Tremadocian.
The breakdown of organic matter and the desorption of Fe-oxyhydroxides in anoxic conditions lead to the formation of micropyrites covering the shells, or within laminae initially rich in organic compounds.
Category
Location
- Europe (3766)
- Northern Europe (905)
- Estonia (43)
- Exact location (26.3468 E, 59.5244 N)
Tags
- sedimentology (17)
- estonia (29)
- ore (14)
- mineral deposits (33)
- shell (8)
- pyrite (2)
- phosphorite (11)
Colours
Image properties
3488 × 1143 px;
image/jpeg; 2.8 MB
Taken in
2021
Submitted on 31 May 2024
Licence
Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported (CC BY-NC-ND 3.0)
Credit
Sophie Graul (distributed via imaggeo.egu.eu)
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