Permafrost Organic Carbon Mobilization From the Watershed to the Colville River Delta: Evidence From 14 C Ramped Pyrolysis and Lignin Biomarkers
The deposition of terrestrial-derived permafrost particulate organic carbon (POC) has been recorded in major Arctic river deltas. However, associated transport pathways of permafrost POC from the watershed to the coast have not been well constrained. Here we utilized a combination of ramped pyrolysi...
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ftunisfloridatam:oai:digitalcommons.usf.edu:msc_facpub-3462 2023-05-15T14:56:06+02:00 Permafrost Organic Carbon Mobilization From the Watershed to the Colville River Delta: Evidence From 14 C Ramped Pyrolysis and Lignin Biomarkers Zhang, Xiaowen Bianchi, Thomas S. Cui, Xingqian Rosenheim, Brad E. Ping, Chien-Lu Hanna, Andrea J. M. Kanevskiy, Mikhail Schreiner, Kathryn M. Allison, Mead A. 2017-01-01T08:00:00Z application/pdf https://digitalcommons.usf.edu/msc_facpub/2428 https://digitalcommons.usf.edu/cgi/viewcontent.cgi?article=3462&context=msc_facpub unknown Digital Commons @ University of South Florida https://digitalcommons.usf.edu/msc_facpub/2428 https://digitalcommons.usf.edu/cgi/viewcontent.cgi?article=3462&context=msc_facpub default Marine Science Faculty Publications Arctic permafrost pyrolysis lignin Colville River carbon cycling Life Sciences article 2017 ftunisfloridatam 2022-04-07T17:43:04Z The deposition of terrestrial-derived permafrost particulate organic carbon (POC) has been recorded in major Arctic river deltas. However, associated transport pathways of permafrost POC from the watershed to the coast have not been well constrained. Here we utilized a combination of ramped pyrolysis-oxidation radiocarbon analysis (RPO 14C) along with lignin biomarkers, to track the linkages between soils and river and delta sediments. Surface and deep soils showed distinct RPO thermographs which may be related to degradation and organo-mineral interaction. Soil material in the bed load of the river channel was mostly derived from deep old permafrost. Both surface and deep soils were transported and deposited to the coast. Hydrodynamic sorting and barrier island protection played important roles in terrestrial-derived permafrost POC deposition near the coast. On a large scale, ice processes (e.g., ice gauging and strudel scour) and ocean currents controlled the transport and distribution of permafrost POC on the Beaufort Shelf. Article in Journal/Newspaper Arctic Ice permafrost Digital Commons University of South Florida (USF) Arctic Barrier Island ENVELOPE(78.396,78.396,-68.431,-68.431) Beaufort Shelf ENVELOPE(-142.500,-142.500,70.000,70.000) |
institution |
Open Polar |
collection |
Digital Commons University of South Florida (USF) |
op_collection_id |
ftunisfloridatam |
language |
unknown |
topic |
Arctic permafrost pyrolysis lignin Colville River carbon cycling Life Sciences |
spellingShingle |
Arctic permafrost pyrolysis lignin Colville River carbon cycling Life Sciences Zhang, Xiaowen Bianchi, Thomas S. Cui, Xingqian Rosenheim, Brad E. Ping, Chien-Lu Hanna, Andrea J. M. Kanevskiy, Mikhail Schreiner, Kathryn M. Allison, Mead A. Permafrost Organic Carbon Mobilization From the Watershed to the Colville River Delta: Evidence From 14 C Ramped Pyrolysis and Lignin Biomarkers |
topic_facet |
Arctic permafrost pyrolysis lignin Colville River carbon cycling Life Sciences |
description |
The deposition of terrestrial-derived permafrost particulate organic carbon (POC) has been recorded in major Arctic river deltas. However, associated transport pathways of permafrost POC from the watershed to the coast have not been well constrained. Here we utilized a combination of ramped pyrolysis-oxidation radiocarbon analysis (RPO 14C) along with lignin biomarkers, to track the linkages between soils and river and delta sediments. Surface and deep soils showed distinct RPO thermographs which may be related to degradation and organo-mineral interaction. Soil material in the bed load of the river channel was mostly derived from deep old permafrost. Both surface and deep soils were transported and deposited to the coast. Hydrodynamic sorting and barrier island protection played important roles in terrestrial-derived permafrost POC deposition near the coast. On a large scale, ice processes (e.g., ice gauging and strudel scour) and ocean currents controlled the transport and distribution of permafrost POC on the Beaufort Shelf. |
format |
Article in Journal/Newspaper |
author |
Zhang, Xiaowen Bianchi, Thomas S. Cui, Xingqian Rosenheim, Brad E. Ping, Chien-Lu Hanna, Andrea J. M. Kanevskiy, Mikhail Schreiner, Kathryn M. Allison, Mead A. |
author_facet |
Zhang, Xiaowen Bianchi, Thomas S. Cui, Xingqian Rosenheim, Brad E. Ping, Chien-Lu Hanna, Andrea J. M. Kanevskiy, Mikhail Schreiner, Kathryn M. Allison, Mead A. |
author_sort |
Zhang, Xiaowen |
title |
Permafrost Organic Carbon Mobilization From the Watershed to the Colville River Delta: Evidence From 14 C Ramped Pyrolysis and Lignin Biomarkers |
title_short |
Permafrost Organic Carbon Mobilization From the Watershed to the Colville River Delta: Evidence From 14 C Ramped Pyrolysis and Lignin Biomarkers |
title_full |
Permafrost Organic Carbon Mobilization From the Watershed to the Colville River Delta: Evidence From 14 C Ramped Pyrolysis and Lignin Biomarkers |
title_fullStr |
Permafrost Organic Carbon Mobilization From the Watershed to the Colville River Delta: Evidence From 14 C Ramped Pyrolysis and Lignin Biomarkers |
title_full_unstemmed |
Permafrost Organic Carbon Mobilization From the Watershed to the Colville River Delta: Evidence From 14 C Ramped Pyrolysis and Lignin Biomarkers |
title_sort |
permafrost organic carbon mobilization from the watershed to the colville river delta: evidence from 14 c ramped pyrolysis and lignin biomarkers |
publisher |
Digital Commons @ University of South Florida |
publishDate |
2017 |
url |
https://digitalcommons.usf.edu/msc_facpub/2428 https://digitalcommons.usf.edu/cgi/viewcontent.cgi?article=3462&context=msc_facpub |
long_lat |
ENVELOPE(78.396,78.396,-68.431,-68.431) ENVELOPE(-142.500,-142.500,70.000,70.000) |
geographic |
Arctic Barrier Island Beaufort Shelf |
geographic_facet |
Arctic Barrier Island Beaufort Shelf |
genre |
Arctic Ice permafrost |
genre_facet |
Arctic Ice permafrost |
op_source |
Marine Science Faculty Publications |
op_relation |
https://digitalcommons.usf.edu/msc_facpub/2428 https://digitalcommons.usf.edu/cgi/viewcontent.cgi?article=3462&context=msc_facpub |
op_rights |
default |
_version_ |
1766328144144367616 |