Investigating methane hydrates

Author(s): Jackson, Peter; Long, Dave; Skinner, Ali; Williams, Frank; Camps, Ameena; Lovell, Mike; Davies, Sarah; Mildowski, Tony; Rochelle, Chris
Author Affiliation(s): Primary:
British Geological Survey, Keyworth, United Kingdom
Other:
University of Leicester, United Kingdom
Volume Title: Earthwise (Keyworth)
Source: Earthwise (Keyworth), Vol.24, p.14-15. Publisher: British Geological Society, Keyworth, United Kingdom. ISSN: 0967-9669
Note: In English; illus.
Summary: Methane hydrates are ice-like substances in which gas molecules are held within "cages" of water molecules. They form at low temperatures and high pressures where methane and water are available and are found beneath the sea floor in water depths greater than 500 metres. Large amounts of methane hydrate are thought to exist within sea-bed sediments, particularly beneath the continental slopes. The stability of this methane store may be sensitive to climate change, particularly in permafrost regions. This means that during global warming, hydrates constitute a geohazard especially where melting of the hydrate may significantly reduce the strength of the host sediment. Additionally, methane released during such events may itself contribute to global warming.
Year of Publication: 2007
Research Program: IODP Integrated Ocean Drilling Program
ODP Ocean Drilling Program
Key Words: 22 Environmental Geology; 29 Economic Geology, Energy Sources; Aliphatic hydrocarbons; Alkanes; Arctic Ocean; Cascadia Basin; Climate; Climate change; Continental margin; East Pacific; Energy sources; Environmental effects; Expedition 311; Gas hydrates; Geologic hazards; Global change; Global warming; Hakon Mosby mud volcano; Hydrocarbons; Integrated Ocean Drilling Program; Marine sediments; Measurement-while-drilling; Methane; Mud volcanoes; Natural gas; North Pacific; Northeast Pacific; Norwegian Sea; Ocean Drilling Program; Offshore; Organic compounds; Pacific Ocean; Petroleum; Petroleum exploration; Pollutants; Pollution; Sediments; Well-logging
Coordinates: N483700 N484800 W1264000 W1270400
Record ID: 2007098184
Copyright Information: GeoRef, Copyright 2019 American Geosciences Institute.