Journal and Proceedings of
The Royal Society of New South Wales
Volume 107 Parts 1 and 2 [Issued 5th June, 1974]
CONTENTS
| AUTHORS & TITLES | PAGES |
| Buist, Robert A. and Williams, Lyall R., Sympathomimetic Tertiary Amines. | 1-5 |
| Hughes, P. J. and Sullivan, M. E., The Re-disposition of Midden Material by Storm Waves | 6-10 |
| Cameron, J. C., Sedimentary Basin Tectonics and a Geological Energy Reserve Appraisal [Presidential Address, 1973 – No Abstract] |
11-16 |
| Gray, D.R., Sedimentology of Permian Rocks near Ravensworth, Northern Sydney Basin, N.S.W. | 17-30 |
| Vallance, T.G., Vesuvianite Hornfels at Queanbeyan, N.S.W. | 31-34 |
| Drake, Lawrence, Seismicity of New South Wales | 35-40 |
Vol 107 pts 1-2, pp.1-3
Sympathomimetic Tertiary Amines
Robert A. Buist and Lyall R. Williams
Abstract. A series of arylamino ketones and phenylethanolamines containing different combinations of aryl substituents and a variety of cyclic tertiary amino groups have been synthesized. The results of preliminary biological testing reveal that many of the series exhibit β-adrenoreceptor agonist activity while several also exhibit concomitant α-adrenoreceptor antagonist activity.
Vol 107 pts 1-2, pp.6-10
The Re-deposition of Midden Material by Storm Waves
P. J. Hughes and M. E. Sullivan
Abstract. The results of a study of sixteen coastal midden-like deposits in southern New South Wales indicate that many such deposits are not undisturbed Aboriginal middens, but have been re-worked by storm waves. These reworked middens are characterized by the presence of one or more of the following: shells of species and sizes not thought to be eaten by Aborigines, marine shell grit, water-worn shells, rounded pebbles and pumice.
Vol 107 pts 1-2, pp.17-30
Sedimentology of Permian Rocks near Ravensworth, N.S.W, Northern Sydney Basin
David R. Gray
Abstract. Permian rocks near Ravensworth, N.S.W. form part of the northern margin of the Sydney Basin, a Permo-Triassic structural basin in central eastern N.S.W. They consist of marine lithic arenites, conglomerates and siltstone of the Maitland Group, conformably overlain by interbedded mudstones, siltstones, sandstones, conglomerates and coal seams of the Singleton Coal Measures.
The sedimentary succession reflects changing depositional environments. Initially, marine sedimentation characterized by littoral and shallow neritic deposition (Branxton Formation) gave way to open shelf deposition (Mulbring Siltstone). Paralic sedimentation associated with coal swamp and meandering stream deposition (Singleton Coal Measures) followed. Tectonic instability related to movements along the Hunter Thrust initiated piedmont conditions with braided stream deposition in the Late Permian (upper portion of the Goorangoola Formation).
Maitland Group marine sedimentation appears to have been dominated by northwesterly directed longshore currents. The fluviatile-lacustrine sedimentation of the Singleton Coal Measures was associated with a northwest flowing drainage system, whereas the Late Permian braided stream deposition was due to south-south-west directed palaeocurrents.
Changes in the nature of sedimentation and palacocurrent trends in the Singleton Coal Measures near Ravensworth are directly relatable to tectonic instability associated with the development of the Hunter Thrust. Such instability has probably controlled the nature, direction and rate of sediment influx along the entire northern margin of the Sydney Basin in the Late Permian.
Vol 107 pts 1-2, pp.31-34
Vesuvianite Hornfels at Queanbeyan, N.S.W: The Nature and Status of a So-called Periclase Rock
T.G. Vallance
Abstract. A contact metamorphic product, described in the literature as a periclase rock, occurs in a situation highly unusual for periclase. Re-examination of the locality and original material shows the earlier diagnosis to be in error. Vesuvianite (α=15.57Å, c=11.84Å) is, in fact, the principal phase present in the rock which also carries minor wollastonite and calcite. Vesuvianite appears to be stabilized in calcareous rocks at medium grades of contact metamorphism only where the vapour phase has a high H20 content. Relatively hydrous metamorphism is typical of other contact zones in the Queanbeyan area.
Vol 107 pts 1-2, pp.35-40
The Seismicity of New South Wales
Lawrence Drake
Abstract. Riverview College Observatory in Lane Cove has been recording ground motion in the neighbourhood of Sydney from earthquakes since 1909. The largest ground motion measured in this time has been of half-amplitude 500 microns and of period approximately 1 sec. There have been six earthquakes in New South Wales in this time of Wood-Anderson magnitude 5.5 or greater. Two of these have occurred in the Dalton-Gunning region and two have occurred near the southern and western boundaries of the Sydney Basin. Sydney itself and the South Coast of New South Wales have been much less seismic than these two regions. However, in evaluation of seismic risk, even in less seismic regions, allowance must be made for faults, ground with poor bearing capacity and potential landslide areas.