Isostatic response to glacial erosion, deposition and ice loading. Impact on hydrocarbon traps of the southwestern Barents Sea

摘要

Previous work indicates that a part of hydrocarbon loss from traps in the Barents Sea is attributed to the Pleistocene (glacially-related) spillage due to isostatically-driven depth changes and tilting. It is, however, unknown how severe the Pleistocene spillage was and how much hydrocarbons were depleted due to other mechanisms including leakage and pre-glacial spillage. In addition, it remains uncertain how much the orientation of the hydrocarbon traps and thus trap capacities and spill directions was affected by glacial sediment redistribution and ice loading.