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https://hdl.handle.net/2440/1989
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Type: | Journal article |
Title: | Facies and sequence stratigraphy of eocene palaeovalley fills in the eastern Eucla Basin, South Australia |
Author: | Hou, B. Alley, N. Frakes, L. Gammon, P. Clarke, J. |
Citation: | Sedimentary Geology, 2003; 163(1-2):111-130 |
Publisher: | Elsevier Science BV |
Issue Date: | 2003 |
ISSN: | 0037-0738 |
Statement of Responsibility: | B Hou, N.F Alley, L.A Frakes, P.R Gammon and J.D.A Clarke |
Abstract: | The Eocene succession filling palaeovalleys in the northeastern Eucla Basin, South Australia, is interpreted using facies and sequence-stratigraphic models based on relative sea-level changes. The dominantly fluvial sediments were deposited in incised valleys which graded basinwards to an estuarine coastal plain under warm and humid palaeoclimatic conditions. Sedimentological examination suggests a tidal influence in this fluvial succession. Fluvial-estuarine-shoreline facies associations can be recognised in these (Eocene) sequences, each of which comprises a diverse assemblage of lithofacies that can be grouped into lowstand and/or transgressive and highstand system tracts. Since the palaeorivers had hydrological connection with the sea, deposition was dominantly controlled by sea-level changes. Results of the study indicate that two third-order Eocene eustatic cycles have largely controlled sedimentation. The resulting key surfaces (unconformity, and transgressive, tidal/wave ravinement, and maximum flooding surfaces) bound depositional sequences which extend over significant areas and may be used in basin-wide correlations of stratal packages. © 2003 Elsevier B.V. All rights reserved. |
Description: | Copyright © 2003 Elsevier B.V. All rights reserved. |
DOI: | 10.1016/S0037-0738(03)00175-1 |
Description (link): | http://www.elsevier.com/wps/find/journaldescription.cws_home/503361/description#description |
Published version: | http://dx.doi.org/10.1016/s0037-0738(03)00175-1 |
Appears in Collections: | Aurora harvest 6 Earth and Environmental Sciences publications |
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