Application of mathematical modelling techniques to the alluvial aquifer system near Wagga Wagga, New South Wales
作者:
F. R. Kalf,
D. R. Woolley,
期刊:
Journal of the Geological Society of Australia
(Taylor Available online 1977)
卷期:
Volume 24,
issue 3-4
页码: 179-194
ISSN:0016-7614
年代: 1977
DOI:10.1080/00167617708728979
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
The central part of the Murrumbidgee River meanders across an alluvial plain which is 1.5 km to 5 km wide, and confined between low hills composed of granite and folded lower Palaeozoic rocks. Deposition commenced under humid and reducing conditions during the Miocene, and continued during Pliocene time. Oligomict quartz‐sand and gravel beds are dominant in the sequence, and are interlayered with grey to black clay and silty clay, which contain a prolific pollen fauna. During Pleistocene time, a marked reduction in rainfall and consequent change in vegetation resulted in the deposition of a widespread coarse polymict poorly‐sorted gravel associated with yellow and brown clay and silt.
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