isotopic composition of gases and interstitial fluides of ODP Site 104-644 ...

• Main Authors: Vuletich, April K, Threlkeld, Charles N, Claypool, George E
• Format: Article in Journal/Newspaper
• Language: English
• Published: PANGAEA 1989
• Subjects: Composite Core; Drilling/drill rig; Leg104; Joides Resolution; Ocean Drilling Program ODP; Methane hydrate; Norwegian Sea
• Online Access: https://dx.doi.org/10.1594/pangaea.736419; https://doi.pangaea.de/10.1594/PANGAEA.736419

Pleistocene- to middle Miocene-age sediment was drilled at Site 341 (67 infinity 20.1'N, 6 infinity 06.6'E) on the inner Voring Plateau during Leg 38 of the Deep Sea Drilling Project (DSDP). In 1985, the Ocean Drilling Program (ODP) returned to the inner Wring Plateau near Site 341 and drilled a new hole at Site 644 (66° 40.7'N, 4° 34.6'E) as part of a transect to study Norwegian Sea paleoenvironments. In Hole 341, gas expansion pockets formed in cores which were recovered from depths below 50 m. This gas was characterized as predominantly methane with delta13C values in the range of -87 to -77 per mil (Morris, 1976, doi:10.2973/dsdp.proc.38.124.1976). At Site 644, sediment gas and pore-water samples were obtained to study the geochemistry of methanogenesis. Of particular interest is the possibility that methane hydrate might be present in these sediments. ... : Supplement to: Vuletich, April K; Threlkeld, Charles N; Claypool, George E (1989): Isotopic composition of gases and interstitial fluids in sediment of the Vøring Plateau, ODP Leg 104, Site 644. In: Eldholm, O; Thiede, J; Taylor, E; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 104, 281-283 ...