Modal composition and tectonic provenance of the sandstones of Ecca
The Ecca Group of Karoo Supergroup is a sedimentary rock sequence that accumulated between the Late Carboniferous Dwyka Group and the Late Permian-Middle Triassic Beaufort Group [ 17 ]. This sedimentary succession outcrops in the Eastern Cape Province of South Africa and it comprises mainly of mudstones, siltstones and sandstones ( Figure …
Sedimentary, geochemical and geophysical study of the Ecca group…
The Ecca Group investigated in this study is situated in the Eastern Cape Province of South Africa and it comprises mainly of shales, mudstones, siltstones and sandstones. The Ecca Group sequence contains considerable carbon content and suitable thickness to make it an ideal target for shale gas exploration.
Lithostratigraphy of the Prince Albert Formation (Ecca Group…
Northeast of this boundary, it correlates with the lower part of the undifferentiated Ecca Group known as "Ecca Shales" and in the northern part of the basin, north of a line from Bloemfontein (Free State) to Harding (KwaZulu-Natal), with the Vryheid and Pietermaritzburg formations. The Prince Albert Formation is generally between 50 …
Resolving cryptic stratigraphy in the Ecca Group, Karoo …
The southern Ecca Group presents a unique Permian regressive succession from basin floor to shelf sedimentation. The Ecca Group represents the under-filled phase from a deep marine to deltaic environment and most of the Lower Ecca formations (Prince Albert, Whitehill and Collingham) extend across the entire southwestern Karoo Basin. ...