Publication Name: Eastern Australian Basins Symposium III (EABS 2008)
Authors: P.J. McCabe
Date Published: September 2008
Number of Pages: 2
Abstract:
The Hawkesbury Sandstone of the Sydney Basin is widely regarded as the deposit of a large sandy braided river system. A detailed examination of the sedimentary facies suggests, however, that most, if not all, of the sediments were deposited in a subtidal environment. Common sedimentary features include double mud-drapes, multiple reactivation surfaces, bundle sequences and bidirectional cross-beds, indicating that the sandstones were deposited by a wide variety of sand-waves under semi-diurnal tidal currents.