Calcite crystals of microbial origin
by Henrik Drake
The photo features calcite crystals precipitated in response to microbial activity (methane oxidation) deep within the Earth's crust - in fractured granitic rock in Sweden. These crystals (about 5 mm in height) act to provide an archive for tracking ancient microbial activity. The tweezers are included for scale.
Category
Location
- Europe (3777)
- Northern Europe (905)
- Sweden (78)
- Exact location (16.5665 E, 57.4092 N)
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Image properties
1428 × 803 px;
image/tiff; 6.6 MB
Camera:
Sony DSC-RX10
Taken on 25
April
2017
Submitted on 9 February 2018
Licence
Creative Commons Attribution 3.0 Unported (CC BY 3.0)
Credit
Henrik Drake (distributed via imaggeo.egu.eu)
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