MEC Resources Limited (ASX: MMR) is pleased to advise that investee company Advent Energy Ltd ("Advent") has received a report from Fred Kroh, former Project Leader of the Geophysical Processing and Data Access Project with Geoscience Australia, describing geophysical evidence for gas in the offshore Sydney Basin, NSW.
The report states that the geophysical data collected as part of Geoscience Australia's NSW Continental Slope Survey SS10/2006 (voyage lines indicated right), especially Swath Bathymetry and TOPAS Sub-Bottom Profiles, have replicated features demonstrated previously (from SS06/2005) to have been derived from implied thermogenic hydrocarbon seepage emanating from the Cornea Oil Field, in the Timor Sea, north western Australia
MEC Resources Limited (ASX: MMR) is pleased to advise that investee company Advent Energy Ltd ("Advent") has received a report from Fred Kroh, former Project Leader of the Geophysical Processing and Data Access Project with Geoscience Australia, describing geophysical evidence for gas in the offshore Sydney Basin, NSW.
The report states that the geophysical data collected as part of Geoscience Australia's NSW Continental Slope Survey SS10/2006 (voyage lines indicated right), especially Swath Bathymetry and TOPAS Sub-Bottom Profiles, have replicated features demonstrated previously (from SS06/2005) to have been derived from implied thermogenic hydrocarbon seepage emanating from the Cornea Oil Field, in the Timor Sea, north western Australia.
The Cornea seepage, published in Marine and Petroleum Geology 23 (2006) pp145-164, was the first time in Australia that active present-day hydrocarbon seepage had been imaged.
The swath bathymetric analysis (SS10/2006) has been published and commented on previously by Geoscience Australia in the March 2008 edition/Issue 89 of AusGeo News.
Here, Kriton Glenn, chief scientist aboard the SS10/2006 voyage states:
"Many remarkable features were also seen for the first time, such as mid slope channels off the Hunter region. Some of these channels have levees and a V shaped morphology, suggesting that both active erosion and deposition are taking place. Additionally, a series of large pockmarks (~600 metres in diameter and ~70 metres deep) were found in water depths exceeding 1300 metres. The ages of the pockmarks are hard to determine, as they are formed as a result of an ongoing gas or liquid escape from much deeper in the geological profile. Seismic data indicate that the fluid is migrating along faults and escaping via these features into the water column. The profiles show little infilling of the steep walls of the pockmarks, indicating an active erosional process."
View the announcement in full by clicking here Geophysical Indications of Gas in Offshore Sydney Basin Announcement