First record of contourites from Lower Devonian Liptrap Formation in southeast Australia

Du, YuanSheng, Shi, G. R. and Gong, YiMing 2008, First record of contourites from Lower Devonian Liptrap Formation in southeast Australia, Science in China: Series D Earth sciences, vol. 51, no. 7, pp. 939-946, doi: 10.1007/s11430-008-0068-6.

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Title First record of contourites from Lower Devonian Liptrap Formation in southeast Australia
Author(s) Du, YuanSheng
Shi, G. R.
Gong, YiMing
Journal name Science in China: Series D Earth sciences
Volume number 51
Issue number 7
Start page 939
End page 946
Total pages 8
Publisher Zhongguo Kexue Zazhishe
Place of publication Beijing, China
Publication date 2008-07
ISSN 1006-9313
Keyword(s) Contourite
Cape Liptrap
Liptrap Formation
southeast Australia
Summary Typical contourite deposits associated with submarine turbidite fan deposits are recognized for the first time from the Lower Devonian Liptrap Formation at Cape Liatrap, Victoria in southeast Australia. The contourites are well integrated within the turbidite fan deposits and are characterized by thin (5–8 cm), lenticular, well-sorted coarse-grained siltstones to fine-grained sandstones with current-ripples and cross beddings. The palaeocurrent directions of the turbidite fan and contourites are perpendicular to each other, with the former directed generally westward while the latter varying from 165° to 190° southward. In view of the facies types and architecture, we suggest that the turbidite fan was developed at the base of a westward inclined palaeo-slope, at the front of which the contourites were deposited as a result of southward flowing deep-sea contour (geostrophic) currents. The depositional setting interpreted for the Liptrap Formation thus may provide a provisional model for the Lower Devonian continental slope and abyssal basin environment in the southeastern part of the Melbourne Trough.
Language eng
DOI 10.1007/s11430-008-0068-6
Field of Research 040310 Sedimentology
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
HERDC collection year 2008
Copyright notice ©2008, Science in China Press
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