The recent development and deployment of HYACINTH and IODP PCS pressure cores on the JOIDES
Resolution during Expedition 1 of the Indian National Gas Hydrate Program (NGHP-1) has provided some
of the first “undisturbed” samples of gas hydrate in fine grained marine sediments. Some samples, once
recovered from the seafloor, were subject to rapid depressurization and subsequent immersion in liquid
nitrogen, at approximately -196oC, for use in subsequent laboratory test programs. This paper describes the
techniques used at Southampton University, the difficulties encountered, and the results obtained from
geotechnical testing of these samples. The original intention had been to pressurize and unfreeze the
material before testing it in the Gas Hydrate Resonant Column (GHRC) Apparatus. Initial CT scanning of
the samples showed that the sample quality might be too poor for such testing, and this proved to be the
case. Instead a suite of geotechnical testing was carried out, the results of which are reported and
interpreted in this paper.
| Identifer | oai:union.ndltd.org:LACETR/oai:collectionscanada.gc.ca:BVAU.2429/1795 |
| Date | 07 1900 |
| Creators | Clayton, Chris R.I., Kingston, Emily, Priest, Jeffery, Schultheiss, Peter, NGHP Expedition 01 Scientific Party |
| Source Sets | Library and Archives Canada ETDs Repository / Centre d'archives des thèses électroniques de Bibliothèque et Archives Canada |
| Language | English |
| Detected Language | English |
| Type | text |
| Rights | Priest, Jeffrey |
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