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.
Taken on 25
April
2017
Submitted on 09 February 2018
Categories
Location
- Europe (3408)
- Northern Europe (798)
- Sweden (76)
- Exact location (16.5665 E, 57.4092 N)
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Camera:
Sony DSC-RX10
Licence
Credit: Henrik Drake (distributed via imaggeo.egu.eu)
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