In this section
@article{Kieft:2011:10.2110/jsr.2011.44,
author = {Kieft, RL and Hampson, GJ and Jackson, CA-L and Larsen, E},
doi = {10.2110/jsr.2011.44},
journal = {Journal of Sedimentary Research},
pages = {513--533},
title = {Stratigraphic Architecture of a Net-Transgressive Marginal- to Shallow-Marine Succession: Upper Almond Formation, Rock Springs Uplift, Wyoming, U.S.A.},
url = {http://dx.doi.org/10.2110/jsr.2011.44},
volume = {81},
year = {2011}
}
TY - JOUR
AB - <jats:title>Abstract</jats:title> <jats:p>The upper part of the Almond Formation records the overall retreat of a wave-dominated shoreline and associated lagoons or bays. Exposures of these strata on the eastern flank of the Rock Springs Uplift, Wyoming, U.S.A., enable analysis of their stratigraphic architectures along sections oriented oblique to depositional strike.</jats:p> <jats:p>The upper Almond Formation comprises at least nine vertically stacked regressive–transgressive cycles. The regressive component of each cycle consists of thick (up to 22 m), laterally continuous wave-dominated shoreface and overlying coastal-plain deposits that occur in paleoseaward locations and have abrupt (< 400 m) paleolandward pinchouts. The transgressive component of each cycle consists of one or more bay-fill successions that occur in paleolandward locations and gradually thin in a paleoseaward direction. Transgressive bay-fill deposits in each cycle are thick (up to 18 m) and associated with preservation of surfaces that record, in progressively paleoseaward locations: initiation of a lagoon or bay (transgressive surface), erosional retreat of tidal-inlet channels (tidal ravinement surface) and the shoreface (wave ravinement surface), and marine flooding (marine flooding surface). This architecture records regression of a strandplain or wave-dominated delta, and subsequent transgression of a barrier island and spit with associated lagoon or bay. The occurrence of such thick and fully preserved bay-fill successions indicates that accretionary transgressive shoreline trajectories were developed.</jats:p> <jats:p>Strongly-aggradational-to-weakly-retrogradational stacking of successive regressive–transgressive cycles results in a layered stratigraphic architecture, with laterally continuous shoreface sandstone layers interbedded with bay-fill shale layers. Shoreface
AU - Kieft,RL
AU - Hampson,GJ
AU - Jackson,CA-L
AU - Larsen,E
DO - 10.2110/jsr.2011.44
EP - 533
PY - 2011///
SN - 1527-1404
SP - 513
TI - Stratigraphic Architecture of a Net-Transgressive Marginal- to Shallow-Marine Succession: Upper Almond Formation, Rock Springs Uplift, Wyoming, U.S.A.
T2 - Journal of Sedimentary Research
UR - http://dx.doi.org/10.2110/jsr.2011.44
UR - https://doi.org/10.2110/jsr.2011.44
VL - 81
ER -