Imperial College London
Alternate

PETER A. ALLISON

Faculty of Engineering, Department of Earth Science & Engineering

Professor of Earth Science
 
 
 
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Contact

 

+44 (0)20 7594 6479p.a.allison Website

 
 
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Location

 

4.84Royal School of MinesSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Collins:2018:10.2110/jsr.2018.19,
author = {Collins, DS and Johnson, HD and Allison, PA and Damit, AR},
doi = {10.2110/jsr.2018.19},
journal = {Journal of Sedimentary Research},
pages = {399--430},
title = {Mixed process, humid-tropical, shoreline-shelf deposition and preservation: middle Miocene-modern Baram Delta Province, Northwest Borneo},
url = {http://dx.doi.org/10.2110/jsr.2018.19},
volume = {88},
year = {2018}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - This evaluation of the Miocene–Modern Baram Delta Province (BDP) depositional system provides: (1) a rare case study of outcrop observations that can be directly compared with a closely comparable and geographically adjacent modern analogue; (2) new insights into how deposition and preservation occur across a range of process regimes in a highly aggradational tectono-stratigraphic setting; and (3) an example of a well-exposed mixed-influenced shoreline–shelf depositional system, displaying variable interaction of fluvial, wave, and tidal processes. The exceptionally close relationship between the present-day BDP source-to-sink system and its ancient (Miocene–Pliocene) counterpart is because the climatic (humid-tropical, ever-wet, monsoon-influenced), tectonic (active foreland margin), hydrological (multiple, relatively short rivers), and gross depositional (shoreline–shelf) settings have remained consistent over the past c. 15–20 Myr. This study compares exposure-based analyses of facies and stratigraphic architecture in the middle Miocene Belait Formation (eastern BDP) with process-based geomorphological and sedimentological analyses of coastal–deltaic depositional environments in the present-day BDP. The Belait Formation comprises three distinct types of vertical facies-succession sets: (1) aggradationally-stacked, upward-sanding units (10–50 m thick), dominated by erosionally based sandstone beds showing swaly cross-stratification and gutter casts, record deposition during simultaneously high storm-wave energy and storm-enhanced fluvial discharge (“storm floods”); these are interpreted as analogs for deposits along the present-day open coastline in the BDP (e.g., the present-day, open-shelf Baram delta and flanking strandplain); (2) aggradationally stacked, heterolithic, upward-sanding units characterized by interbedded swaly cross-stratified sandstone and combined-flow-rippled heterolithics, record deposition
AU  - Collins,DS
AU  - Johnson,HD
AU  - Allison,PA
AU  - Damit,AR
DO  - 10.2110/jsr.2018.19
EP  - 430
PY  - 2018///
SN  - 1527-1404
SP  - 399
TI  - Mixed process, humid-tropical, shoreline-shelf deposition and preservation: middle Miocene-modern Baram Delta Province, Northwest Borneo
T2  - Journal of Sedimentary Research
UR  - http://dx.doi.org/10.2110/jsr.2018.19
UR  - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000431318300001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR  - http://hdl.handle.net/10044/1/69301
VL  - 88
ER  -
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