Dr. Victor R. Baker, a hydrology expert and planetary scientist at the University of Arizona, said that if there was evidence of active water seepage in the new data, it would have wide implications.
Active Fluid Seepage (AFS) at the seafloor is a global phenomenon associated with seafloor morphologies in different geodynamic contexts.
The DOC in bog runoff can therefore theoretically acidify the surface waters in adjacent fens wherever these waters do not receive sufficient buffering alkalinity from active groundwater seepage.
Seismically derived chimneys seek to formulate a critical relationship between chimney characteristics such as occurrence, type and extent with several geologic features (e.g. mud diapirism, active gas seepage and migration pathways) within the hydrocarbon field.
A Natural active oil seepage occurs at the intersection of the NW-oriented rift coastal fault and a NE-oriented cross fault which bound the southwest dipping Little Zeit tilted fault block at the southwestern side of the Gulf of Suez, Egypt.
Astomonema southwardorum (27%, Siphanolaimidae [130]) was the dominant species in a large pockmark with active methane seepage in the North Sea (153 167 m depth) [43], but is so far not recorded from deep-sea vents or seeps.
These include the very active brine seepage named the Menes Caldera in the eastern province between 2,500 m and 3,000 m [203], the pockmarks in the central area along mid- and lower slopes [204], and the mud volcanoes of the eastern province, as well as one in the central upper slope (North Alex area) at 500 m depth [205].
Methane gas and conductivity were also used as secondary natural tracers to help locate active sites of seepage.
The interpretation of gas concentration maps demonstrates the presence of active hydrocarbons micro-seepage from petroleum systems.
