BibTex format
@article{Legler:2014:10.2110/jsr.2014.49,
author = {Legler, B and Hampson, GJ and Jackson, CA-L and Johnson, HD and Massart, BYG and Sarginson, M and Ravn氓s, R},
doi = {10.2110/jsr.2014.49},
journal = {Journal of Sedimentary Research},
pages = {605--625},
title = {Facies Relationships and Stratigraphic Architecture of Distal, Mixed Tide- and Wave-Influenced Deltaic Deposits: Lower Sego Sandstone, Western Colorado, U.S.A},
url = {http://dx.doi.org/10.2110/jsr.2014.49},
volume = {84},
year = {2014}
}
RIS format (EndNote, RefMan)
TY - JOUR
AB - <jats:title>Abstract: </jats:title> <jats:p>The facies characteristics and stratigraphic architectures of ancient mixed, wave- and tide-influenced deltas are poorly documented, despite the abundance of analogous modern shorelines. This paper presents the first facies analysis and stratigraphic-architectural characterization of the distal part of the Cretaceous lower Sego Sandstone (Book Cliffs, Colorado, U.S.A.), whose correlative proximal part is arguably the most comprehensively documented example of ancient deltaic strata that exhibit evidence for the activity of tides and waves.</jats:p> <jats:p>The distal lower Sego Sandstone consists of tide-dominated and wave-dominated deposits arranged within four regressive–transgressive tongues bounded by flooding surfaces. The proximal part of each regressive–transgressive tongue contains tide- dominated sandstones that sharply to erosionally overlie, and laterally interfinger with, wave-dominated deposits in the distal part of the tongue. Tide-dominated sandstones are fine to medium grained, and comprise wavy bedded and cross-bedded sandstones with abundant mud drapes, reactivation surfaces, and bidirectional, ebb- and flood-tide-directed paleocurrents. They define active tidal distributary channel-fill and nonchannelized tidal-bar deposits of similar lithologic character, which represent the proximal part of the delta front. Abandoned tidal distributary channel fills comprise intensely bioturbated mudstones. The outer, paleoseaward parts of tidal bars contain direct evidence for mixed tide and wave influence in the form of hummocky cross-stratified, very fine-grained sandstone beds intercalated with cross-bedded, fine- to medium-grained sandstones containing tidal indicators. These deposits locally pass paleoseaward into low-angle and hummocky cross-stratified sandstones with grain size and texture similar to tidal-bar deposits, implying re
AU - Legler,B
AU - Hampson,GJ
AU - Jackson,CA-L
AU - Johnson,HD
AU - Massart,BYG
AU - Sarginson,M
AU - Ravn氓s,R
DO - 10.2110/jsr.2014.49
EP - 625
PY - 2014///
SN - 1527-1404
SP - 605
TI - Facies Relationships and Stratigraphic Architecture of Distal, Mixed Tide- and Wave-Influenced Deltaic Deposits: Lower Sego Sandstone, Western Colorado, U.S.A
T2 - Journal of Sedimentary Research
UR - http://dx.doi.org/10.2110/jsr.2014.49
UR - https://doi.org/10.2110/jsr.2014.49
VL - 84
ER -