Australian Museum Journal The stratigraphy of the Wianamatta Group Triassic System, Sydney Basin
- Shortform:
- Lovering, 1954, Rec. Aust. Mus. 23(4): 169–210
- Author(s):
- Lovering, J. F.
- Year published:
- 1954
- Title:
- The stratigraphy of the Wianamatta Group Triassic System, Sydney Basin
- Serial title:
- Records of the Australian Museum
- Volume:
- 23
- Issue:
- 4
- Start page:
- 169
- End page:
- 210
- DOI:
- 10.3853/j.0067-1975.23.1954.631
- Language:
- English
- Plates:
- plate xii
- Date published:
- 25 June 1954
- Cover date:
- 25 June 1954
- ISSN:
- 0067-1975
- CODEN:
- RAUMAJ
- Publisher:
- The Australian Museum
- Place published:
- Sydney, Australia
- Digitized:
- 22 April 2009
- Available online:
- 22 July 2009
- Reference number:
- 631
- EndNote package:
- EndNote file
- Title page:
- Title page (114kb PDF)
- Complete work:
- Complete work (5215kb PDF)
Abstract
The Wianamatta Group has been divided into two sub-groups—the Liverpool sub-group (lower, approximately 400 feet thick, predominantly shale lithology) and the Camden sub-group (upper, approximately 350 feet thick, sandstone lithology prominent with shale). The Liverpool sub-group includes three formations (Ashfield Shale, Minchinbury Sandstone, Bringelly Shale). The Camden sub-group includes five formations (Potts Hill Sandstone, Annan Shale, Razorback Sandstone, Picton Formation, Prudhoe Shale).
The sedimentary petrology of the graywacke-type sandstones and the relation of the lithology to the sedimentary environment and tectonics is discussed. A new element, the envirotope, is defined to be used with the elements lithotope and tectotope (Krumbein and Sloss, 1951) to describe a lithologic sequence.
Post-depositional tectonics are briefly discussed and a new series of tectonic features described from the southwestern suburbs of Sydney.