Topic summary
Strzelecki Group
Extracted from the Wikipedia article Halibut Oil Field.
Strzelecki Group
The Strzelecki Group is a geologic group present in the Halibut Field area. The group was mainly deposited in the early Cretaceous. It is mainly composed of continental and lacustrineclastics. The lithology is predominantly nonmarine greywackes, and mudstones, with minor layers of sandstone, conglomerate, coals, and volcanoclastics. Depositional environments of this group include lakes, swamps, and floodplains. This group is the economic basement of the Halibut Field, meaning it is the stratigraphically lowest group for hydrocarbon production potential. This is known due to burial of 8 km or more in the offshore portion of the basin, which places the group in the overmature range. There is currently research being done on potential hydrocarbon reserves in the onshore portion of the Gippsland Basin.