An infrared thermal imaging camera was used to image sediment cores on the catwalk, immediately following coring and prior to processing. The camera was used to identify negative temperature anomalies. These were investigated for their utility in identifying gas hydrate prior to dissociation, which occurs rapidly because of the temperature increase and pressure decrease associated with the coring process. The camera was successful in identifying distinct negative temperature anomalies in intervals of gas hydrate. The methodology requires some modification to improve efficiency but holds great potential to investigate thermal properties of sediments and rapidly identify gas hydrate.
1 Ford, K.H., Naehr, T.H., Skilbeck, C.G., and the Leg 201 Scientific Party, 2003. The use of infrared thermal imaging to identify gas hydrate in sediment cores. In D'Hondt, S.L., Jørgensen, B.B., Miller, D.J., et al. (Eds.), Proc. ODP, Init. Repts., 201 [Online]. Available from World Wide Web: <http://www-odp.tamu.edu/publications/201_IR/chap_04/chap_04.htm>. [Cited
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2 Graduate School of Oceanography, University of Rhode Island, South Ferry Road, Narragansett RI 02882, USA. khford@gso.uri.edu
3 Department of Physical and Life sciences, Texas A&M University-Corpus Christi, 6300 Ocean Drive, Corpus Christi TX 78412, USA.
4 Department of Environmental Sciences, University of Technology, Sydney, 1 Broadway, Sydney NSW 2007, Australia.
5 Shipboard Scientific Party addresses.
Ms 201IR-104