In this section
@article{Legler:2013:10.1111/sed.12037,
author = {Legler, B and Johnson, HD and Hampson, GJ and Massart, BYG and Jackson, CA and Jackson, MD and ElBarkooky, A and Ravnas, R},
doi = {10.1111/sed.12037},
journal = {Sedimentology},
pages = {1313--1356},
title = {Facies model of a finegrained, tidedominated delta: Lower Dir Abu Lifa Member (Eocene), Western Desert, Egypt},
url = {http://dx.doi.org/10.1111/sed.12037},
volume = {60},
year = {2013}
}
TY - JOUR
AB - <jats:title>Abstract</jats:title><jats:p>Existing facies models of tidedominated deltas largely omit finegrained, mudrich successions. Sedimentary facies and sequence stratigraphic analysis of the exceptionally wellpreserved Late Eocene Dir Abu Lifa Member (Western Desert, Egypt) aims to bridge this gap. The succession was deposited in a structurally controlled, shallow, macrotidal embayment and deposition was supplemented by fluvial processes but lacked wave influence. The succession contains two stacked, progradational parasequence sets bounded by regionally extensive flooding surfaces. Within this succession two main genetic elements are identified: nonchannelized tidal bars and tidal channels. Nonchannelized tidal bars comprise coarseningupward sandbodies, including large, downcurrentdipping accretion surfaces, sometimes capped by palaeosols indicating emergence. Tidal channels are preserved as singlestorey and multilateral bodies filled by: (i) laterally migrating, elongate tidal bars (inclined heterolithic strata, 5 to 25 m thick); (ii) forwardfacing lobate bars (sigmoidal heterolithic strata, up to 10 m thick); (iii) side bars displaying oblique to vertical accretion (4 to 7 m thick); or (iv) verticallyaccreting mud (1 to 4 m thick). Palaeocurrent data show that channels were swept by bidirectional tidal currents and typically were mutually evasive. Alongstrike variability defines a similar largescale architecture in both parasequence sets: a deeply scoured channel belt characterized by widespread inclined heterolithic strata is eroded from the parasequenceset top, and flanked by stacked, nonchannelized tidal bars and smaller channelized bodies. The tidedominated delta is characterized by: (i) the regressive stratigraphic context; (ii) netprogradational stratigraphic architecture within the succession; (iii) the absence of upward deepening trends and tidal ravinement surfaces; and (iv) architectural relat
AU - Legler,B
AU - Johnson,HD
AU - Hampson,GJ
AU - Massart,BYG
AU - Jackson,CA
AU - Jackson,MD
AU - ElBarkooky,A
AU - Ravnas,R
DO - 10.1111/sed.12037
EP - 1356
PY - 2013///
SN - 0037-0746
SP - 1313
TI - Facies model of a finegrained, tidedominated delta: Lower Dir Abu Lifa Member (Eocene), Western Desert, Egypt
T2 - Sedimentology
UR - http://dx.doi.org/10.1111/sed.12037
UR - https://doi.org/10.1111/sed.12037
VL - 60
ER -