Direct measurement of in situ methane quantities in a large gas-hydrate reservoir

Article Abstract:

Gas hydrates are solids that develop from the mixture of water and certain gases and are stable both at low temperatures and high pressures. Marine sediments with a supply of methane are conducive to such formation. In fact, the amount of gas hydrates hidden in oceanic sediments may be larger than any other fossil-fuel reservoir on Earth. The presence of gas hydrates in the Blake ridge in the Atlantic Ocean was investigated. Findings indicate that huge amounts of methane in the form of solid gas hydrate can be found in the region.

Discovery and exploration, Methane, Natural resources, Natural gas, Gas hydrates, Hydrates, North Atlantic Ocean

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Gas hydrate crystals may help build reefs

Article Abstract:

Two extensive deep-water reef provinces were discovered in the Porcupine Basin, off southwest Ireland. Their ring shape suggests an axial fluid expulsion at the sea bed. Seismic profiles of the area have already identified several large deep-water carbonate mounds. The large mounds discovered in May 1997, are flanked by the Magellan reefs, and widespread twin associations of symmetric lung- or butterfly-shaped structures were observed.

Research, Reefs

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Doubts swirl around plan to use rigs as reefs

Article Abstract:

Studies conducted to analyze pros and cons of artificial reefs in conservation. The salient features and drawbacks of artificial reef constructed on offshore oil and gas platforms are elaborated.

Protection and preservation, Marine fauna, Marine animals, Artificial reefs

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