@article{oai:nipr.repo.nii.ac.jp:00002988, author = {Shakirov,Renat B. and Obzhirov,Anatoly I. and Salyuk,Anatoly N. and Biebow,Nicole and Terekhova,Valeriya E. and Tsunogai,Urumu and Shoji,Hitoshi}, journal = {Polar meteorology and glaciology}, month = {Nov}, note = {P(論文), An original classification of anomalous methane fields according to the vertical structure of the water column in the Sea of Okhotsk is proposed. Basic types of anomalous methane fields are described: penetrating, near-bottom, deep, intermediate, subsurface, surface, and combined. Anomalous methane concentrations are greater than background values, sometimes by 1-3 orders(up to 30000nl/l above methane hydrates). Spatial and quantitative varieties of anomalous methane fields have genetic relations with different hydrocarbon sources. These varieties suggest a high permeability of active fault zones and geochemical activity in marginal areas, especially along the western Sea of Okhotsk.}, pages = {50--66}, title = {Classification of anomalous methane fields in the Sea of Okhotsk}, volume = {19}, year = {2005} }