Nature of late-Early to Middle Devonian tectonism in the Buckambool area, Cobar, New South Wales
Titel:
Nature of late-Early to Middle Devonian tectonism in the Buckambool area, Cobar, New South Wales
Auteur:
Glen, R. A.
Verschenen in:
Australian journal of earth sciences
Paginering:
Jaargang 29 (1982) nr. 1-2 pagina's 127-138
Jaar:
1982-04
Inhoud:
In the Buckambool area, Cobar, New South Wales, the boundary between dominantly shallow-water, shelf sediments of the Winduck Group and fluviatile sediments of the Mulga Downs Group has been established as a small hiatus not resolvable by available fossil age data. Although dips are parallel over much of the area, disconformable and locally angular unconformable relations are present. This hiatus, late-Early to Middle Devonian in age, marks a period of uplift, localised folding and erosion. These reflect movement of basement blocks along major fractures that are now revealed as lineaments. Terminal deformation in the area, reflected by folding and re-activation of lineaments, postdated deposition of the Mulga Downs Group, and is probably Carboniferous in age.
Tijdschrift beschrijving