Avulsion history of a Holocene semi-arid river system - Outcrop analogue for thin-bedded fluvial reservoirs in the Rotliegend feather edge

M.E. Donselaar, M.C. Cuevas Gozalo, J. Wallinga

Research output: Chapter in Book/Report/Conference proceedingConference paperAcademicpeer-review

3 Citations (Scopus)

Abstract

Sedimentation at the terminus of low-gradient river systems in a semi-arid climate setting is characterized by thin-but laterally extensive amalgamated sand sheets. Analysis of absolute age dating with Optically Stimulated Luminescence measurements of fluvial sands in the Holocene Río Colorado (Altiplano Basin, Bolivia) aimed to (1) analyze the processes that created this sedimentary architecture, and (2) provide an analogue for thin but laterally-extensive sandstone reservoirs in an overall low net-to-gross setting such as the Rotliegend feather edge. The Río Colorado created a network of laterally-amalgamated fluvial sands by successive river-channel switching as the result of avulsion in a time period of only 4000y. The network formed by successive river avulsions with frequencies from 60 to 910y. The total area covered with these deposits approximates 500 km2; maximum thickness of the deposits is 2m. Fluvial sediment accumulated by vertical aggradation of sand in levees, vertical stacking and lateral amalgamation of crevasse splays, and vertical aggradation of channel-floor sand. This resulted in alluvial ridges with a positive relief on the floodplain. Subsequent river positions avoided the positive relief, and juxtaposition of successive river positions resulted in compensational stacking and amalgamation of fluvial sand deposits to a laterally connected extensive sand sheet.
Original languageEnglish
Title of host publication79th EAGE Conference and Exhibition 2017
PublisherEuropean Association of Geoscientists and Engineers, EAGE
ISBN (Electronic)9789462822177
DOIs
Publication statusPublished - 12 Jun 2017
Event79th EAGE Conference and Exhibition 2017: Energy, Technology, Sustainability - Time to Open a New Chapter - Paris, France
Duration: 12 Jun 201715 Jun 2017

Conference

Conference79th EAGE Conference and Exhibition 2017: Energy, Technology, Sustainability - Time to Open a New Chapter
CountryFrance
CityParis
Period12/06/1715/06/17

Fingerprint

avulsion
outcrops
feather
rivers
river system
sands
outcrop
Sand
Rivers
Holocene
histories
analogs
sand
history
Deposits
deposits
aggradation
stacking
relief
crevasses

Cite this

Donselaar, M. E., Cuevas Gozalo, M. C., & Wallinga, J. (2017). Avulsion history of a Holocene semi-arid river system - Outcrop analogue for thin-bedded fluvial reservoirs in the Rotliegend feather edge. In 79th EAGE Conference and Exhibition 2017 European Association of Geoscientists and Engineers, EAGE. https://doi.org/10.3997/2214-4609.201700610
Donselaar, M.E. ; Cuevas Gozalo, M.C. ; Wallinga, J. / Avulsion history of a Holocene semi-arid river system - Outcrop analogue for thin-bedded fluvial reservoirs in the Rotliegend feather edge. 79th EAGE Conference and Exhibition 2017. European Association of Geoscientists and Engineers, EAGE, 2017.
@inproceedings{d258a2e91c9a4d24b9437c87da85b2b7,
title = "Avulsion history of a Holocene semi-arid river system - Outcrop analogue for thin-bedded fluvial reservoirs in the Rotliegend feather edge",
abstract = "Sedimentation at the terminus of low-gradient river systems in a semi-arid climate setting is characterized by thin-but laterally extensive amalgamated sand sheets. Analysis of absolute age dating with Optically Stimulated Luminescence measurements of fluvial sands in the Holocene R{\'i}o Colorado (Altiplano Basin, Bolivia) aimed to (1) analyze the processes that created this sedimentary architecture, and (2) provide an analogue for thin but laterally-extensive sandstone reservoirs in an overall low net-to-gross setting such as the Rotliegend feather edge. The R{\'i}o Colorado created a network of laterally-amalgamated fluvial sands by successive river-channel switching as the result of avulsion in a time period of only 4000y. The network formed by successive river avulsions with frequencies from 60 to 910y. The total area covered with these deposits approximates 500 km2; maximum thickness of the deposits is 2m. Fluvial sediment accumulated by vertical aggradation of sand in levees, vertical stacking and lateral amalgamation of crevasse splays, and vertical aggradation of channel-floor sand. This resulted in alluvial ridges with a positive relief on the floodplain. Subsequent river positions avoided the positive relief, and juxtaposition of successive river positions resulted in compensational stacking and amalgamation of fluvial sand deposits to a laterally connected extensive sand sheet.",
author = "M.E. Donselaar and {Cuevas Gozalo}, M.C. and J. Wallinga",
year = "2017",
month = "6",
day = "12",
doi = "10.3997/2214-4609.201700610",
language = "English",
booktitle = "79th EAGE Conference and Exhibition 2017",
publisher = "European Association of Geoscientists and Engineers, EAGE",

}

Donselaar, ME, Cuevas Gozalo, MC & Wallinga, J 2017, Avulsion history of a Holocene semi-arid river system - Outcrop analogue for thin-bedded fluvial reservoirs in the Rotliegend feather edge. in 79th EAGE Conference and Exhibition 2017. European Association of Geoscientists and Engineers, EAGE, 79th EAGE Conference and Exhibition 2017: Energy, Technology, Sustainability - Time to Open a New Chapter, Paris, France, 12/06/17. https://doi.org/10.3997/2214-4609.201700610

Avulsion history of a Holocene semi-arid river system - Outcrop analogue for thin-bedded fluvial reservoirs in the Rotliegend feather edge. / Donselaar, M.E.; Cuevas Gozalo, M.C.; Wallinga, J.

79th EAGE Conference and Exhibition 2017. European Association of Geoscientists and Engineers, EAGE, 2017.

Research output: Chapter in Book/Report/Conference proceedingConference paperAcademicpeer-review

TY - GEN

T1 - Avulsion history of a Holocene semi-arid river system - Outcrop analogue for thin-bedded fluvial reservoirs in the Rotliegend feather edge

AU - Donselaar, M.E.

AU - Cuevas Gozalo, M.C.

AU - Wallinga, J.

PY - 2017/6/12

Y1 - 2017/6/12

N2 - Sedimentation at the terminus of low-gradient river systems in a semi-arid climate setting is characterized by thin-but laterally extensive amalgamated sand sheets. Analysis of absolute age dating with Optically Stimulated Luminescence measurements of fluvial sands in the Holocene Río Colorado (Altiplano Basin, Bolivia) aimed to (1) analyze the processes that created this sedimentary architecture, and (2) provide an analogue for thin but laterally-extensive sandstone reservoirs in an overall low net-to-gross setting such as the Rotliegend feather edge. The Río Colorado created a network of laterally-amalgamated fluvial sands by successive river-channel switching as the result of avulsion in a time period of only 4000y. The network formed by successive river avulsions with frequencies from 60 to 910y. The total area covered with these deposits approximates 500 km2; maximum thickness of the deposits is 2m. Fluvial sediment accumulated by vertical aggradation of sand in levees, vertical stacking and lateral amalgamation of crevasse splays, and vertical aggradation of channel-floor sand. This resulted in alluvial ridges with a positive relief on the floodplain. Subsequent river positions avoided the positive relief, and juxtaposition of successive river positions resulted in compensational stacking and amalgamation of fluvial sand deposits to a laterally connected extensive sand sheet.

AB - Sedimentation at the terminus of low-gradient river systems in a semi-arid climate setting is characterized by thin-but laterally extensive amalgamated sand sheets. Analysis of absolute age dating with Optically Stimulated Luminescence measurements of fluvial sands in the Holocene Río Colorado (Altiplano Basin, Bolivia) aimed to (1) analyze the processes that created this sedimentary architecture, and (2) provide an analogue for thin but laterally-extensive sandstone reservoirs in an overall low net-to-gross setting such as the Rotliegend feather edge. The Río Colorado created a network of laterally-amalgamated fluvial sands by successive river-channel switching as the result of avulsion in a time period of only 4000y. The network formed by successive river avulsions with frequencies from 60 to 910y. The total area covered with these deposits approximates 500 km2; maximum thickness of the deposits is 2m. Fluvial sediment accumulated by vertical aggradation of sand in levees, vertical stacking and lateral amalgamation of crevasse splays, and vertical aggradation of channel-floor sand. This resulted in alluvial ridges with a positive relief on the floodplain. Subsequent river positions avoided the positive relief, and juxtaposition of successive river positions resulted in compensational stacking and amalgamation of fluvial sand deposits to a laterally connected extensive sand sheet.

U2 - 10.3997/2214-4609.201700610

DO - 10.3997/2214-4609.201700610

M3 - Conference paper

BT - 79th EAGE Conference and Exhibition 2017

PB - European Association of Geoscientists and Engineers, EAGE

ER -

Donselaar ME, Cuevas Gozalo MC, Wallinga J. Avulsion history of a Holocene semi-arid river system - Outcrop analogue for thin-bedded fluvial reservoirs in the Rotliegend feather edge. In 79th EAGE Conference and Exhibition 2017. European Association of Geoscientists and Engineers, EAGE. 2017 https://doi.org/10.3997/2214-4609.201700610