Geomorphology of the Anthropocene: time-transgressive discontinuities of human-induced alluviation
Alluvial sediments are an integral and environmentally sensitive component of the geological record and may be preserved both in subsiding basins and by uplift. This paper examines the Holocene alluvial record of a high-order fluvial discontinuity within the mid to late Holocene that is evident on a...
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ftunbrightoncris:oai:pure.atira.dk:publications/b02d3a84-edee-4473-a732-62c18a5e17b4 2023-05-15T14:00:49+02:00 Geomorphology of the Anthropocene: time-transgressive discontinuities of human-induced alluviation Brown, Antony Toms, Phil Carey, Christopher Rhodes, Eddie 2013-07-03 https://research.brighton.ac.uk/en/publications/b02d3a84-edee-4473-a732-62c18a5e17b4 https://doi.org/10.1016/j.ancene.2013.06.002 http://www.sciencedirect.com/science/article/pii/S2213305413000076#bbib0105 eng eng info:eu-repo/semantics/restrictedAccess Brown , A , Toms , P , Carey , C & Rhodes , E 2013 , ' Geomorphology of the Anthropocene: time-transgressive discontinuities of human-induced alluviation ' , Anthropocene , vol. 1 , pp. 3-13 . https://doi.org/10.1016/j.ancene.2013.06.002 Alluviation Floodplain formation Stratigraphy Earth sediment transport Erosion Chronology article 2013 ftunbrightoncris https://doi.org/10.1016/j.ancene.2013.06.002 2022-01-01T08:44:11Z Alluvial sediments are an integral and environmentally sensitive component of the geological record and may be preserved both in subsiding basins and by uplift. This paper examines the Holocene alluvial record of a high-order fluvial discontinuity within the mid to late Holocene that is evident on all continents except Antarctica. The time-transgressive nature of this discontinuity, even over short distances, is revealed by two similar small-catchments in the UK which have a similar response to arable cultivation but separated in time by approximately 3000 years. It is argued that this anthropogenic discontinuity is likely to be an enduring signal as it exists well outside potentially future-glaciated areas and will be preserved in Holocene river terraces due to recent and future channel incision. This will make a marked lithological and sedimentological difference between this Middle-Late Holocene terrace and Pleistocene terraces which will also include a biological turnover with the appearance of new taxa, largely domesticates and synanthropes. Discussions of the Anthropocene as a geological period will have to accommodate this data and this may have important implications for the status and demarcation of the Anthropocene as a period in Earth System history. Article in Journal/Newspaper Antarc* Antarctica The University of Brighton Research Portal Anthropocene 1 3 13 |
institution |
Open Polar |
collection |
The University of Brighton Research Portal |
op_collection_id |
ftunbrightoncris |
language |
English |
topic |
Alluviation Floodplain formation Stratigraphy Earth sediment transport Erosion Chronology |
spellingShingle |
Alluviation Floodplain formation Stratigraphy Earth sediment transport Erosion Chronology Brown, Antony Toms, Phil Carey, Christopher Rhodes, Eddie Geomorphology of the Anthropocene: time-transgressive discontinuities of human-induced alluviation |
topic_facet |
Alluviation Floodplain formation Stratigraphy Earth sediment transport Erosion Chronology |
description |
Alluvial sediments are an integral and environmentally sensitive component of the geological record and may be preserved both in subsiding basins and by uplift. This paper examines the Holocene alluvial record of a high-order fluvial discontinuity within the mid to late Holocene that is evident on all continents except Antarctica. The time-transgressive nature of this discontinuity, even over short distances, is revealed by two similar small-catchments in the UK which have a similar response to arable cultivation but separated in time by approximately 3000 years. It is argued that this anthropogenic discontinuity is likely to be an enduring signal as it exists well outside potentially future-glaciated areas and will be preserved in Holocene river terraces due to recent and future channel incision. This will make a marked lithological and sedimentological difference between this Middle-Late Holocene terrace and Pleistocene terraces which will also include a biological turnover with the appearance of new taxa, largely domesticates and synanthropes. Discussions of the Anthropocene as a geological period will have to accommodate this data and this may have important implications for the status and demarcation of the Anthropocene as a period in Earth System history. |
format |
Article in Journal/Newspaper |
author |
Brown, Antony Toms, Phil Carey, Christopher Rhodes, Eddie |
author_facet |
Brown, Antony Toms, Phil Carey, Christopher Rhodes, Eddie |
author_sort |
Brown, Antony |
title |
Geomorphology of the Anthropocene: time-transgressive discontinuities of human-induced alluviation |
title_short |
Geomorphology of the Anthropocene: time-transgressive discontinuities of human-induced alluviation |
title_full |
Geomorphology of the Anthropocene: time-transgressive discontinuities of human-induced alluviation |
title_fullStr |
Geomorphology of the Anthropocene: time-transgressive discontinuities of human-induced alluviation |
title_full_unstemmed |
Geomorphology of the Anthropocene: time-transgressive discontinuities of human-induced alluviation |
title_sort |
geomorphology of the anthropocene: time-transgressive discontinuities of human-induced alluviation |
publishDate |
2013 |
url |
https://research.brighton.ac.uk/en/publications/b02d3a84-edee-4473-a732-62c18a5e17b4 https://doi.org/10.1016/j.ancene.2013.06.002 http://www.sciencedirect.com/science/article/pii/S2213305413000076#bbib0105 |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_source |
Brown , A , Toms , P , Carey , C & Rhodes , E 2013 , ' Geomorphology of the Anthropocene: time-transgressive discontinuities of human-induced alluviation ' , Anthropocene , vol. 1 , pp. 3-13 . https://doi.org/10.1016/j.ancene.2013.06.002 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1016/j.ancene.2013.06.002 |
container_title |
Anthropocene |
container_volume |
1 |
container_start_page |
3 |
op_container_end_page |
13 |
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1766270150802145280 |