Abstract
A new coring device is presented which allows the recovery of loose watery surface sediments and the water/sediment interface byin situ freezing, resulting in well preserved samples. The instrument consists of a tripod with adjustable legs, a hydraulic system, an insulated thermos (with two electrical pumps), and a wedge-shaped freeze box. Alcohol chilled with dry ice is the freezing agent. The corer can be deployed from a boat or a raft and permits recovery of undisturbed surface sediment sections up to 100 cm long in deep waters. The corer is particularly useful for sampling varved sediments.
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Lotter, A.F., Renberg, I., Hansson, H. et al. A remote controlled freeze corer for sampling unconsolidated surface sediments. Aquatic Science 59, 295–303 (1997). https://doi.org/10.1007/BF02522360
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DOI: https://doi.org/10.1007/BF02522360