Seasonal controls on sediment transport and deposition in Lake Ohau, South Island, New Zealand: implications for a high-resolution Holocene palaeoclimate reconstruction
Laminated sediments in Lake Ohau, Mackenzie Basin, New Zealand, offer a potential high-resolution climate record for the past 17 kyr. Such records are particularly important due to the relative paucity of detailed palaeoclimate data from the Southern Hemisphere mid-latitudes. This paper presents out...
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ftjamescook:oai:researchonline.jcu.edu.au:41773 2024-02-11T10:05:43+01:00 Seasonal controls on sediment transport and deposition in Lake Ohau, South Island, New Zealand: implications for a high-resolution Holocene palaeoclimate reconstruction Roop, Heidi A. Dunbar, Gavin B. Levy, Richard Vandergoes, Marcus J. Forrest, Alexander L. Walker, Sharon L. Purdie, Jennifer Upton, Phaedra Whinney, James 2015 application/pdf https://researchonline.jcu.edu.au/41773/1/41773%20Roop%20et%20al%202015.pdf unknown Wiley-Blackwell http://dx.doi.org/10.1111/sed.12162 https://researchonline.jcu.edu.au/41773/ https://researchonline.jcu.edu.au/41773/1/41773%20Roop%20et%20al%202015.pdf Roop, Heidi A., Dunbar, Gavin B., Levy, Richard, Vandergoes, Marcus J., Forrest, Alexander L., Walker, Sharon L., Purdie, Jennifer, Upton, Phaedra, and Whinney, James (2015) Seasonal controls on sediment transport and deposition in Lake Ohau, South Island, New Zealand: implications for a high-resolution Holocene palaeoclimate reconstruction. Sedimentology, 62 (3). pp. 826-844. restricted Article PeerReviewed 2015 ftjamescook https://doi.org/10.1111/sed.12162 2024-01-22T23:36:30Z Laminated sediments in Lake Ohau, Mackenzie Basin, New Zealand, offer a potential high-resolution climate record for the past 17 kyr. Such records are particularly important due to the relative paucity of detailed palaeoclimate data from the Southern Hemisphere mid-latitudes. This paper presents outcomes of a study of the sedimentation processes of this temperate lake setting. Hydrometeorological, limnological and sedimentological data were collected over a 14 month period between 2011 and 2013. These data indicate that seasonality in the hydrometeorological system in combination with internal lake dynamics drives a distinct seasonal pattern of sediment dispersal and deposition on a basin-wide scale. Sedimentary layers that accumulate proximal to the lake inflow at the northern end of the lake form in response to discrete inflow events throughout the year and display an event stratigraphy. In contrast, seasonal change in the lake system controls accumulation of light (winter) and dark (summer) laminations at the distal end of the lake, resulting in the preservation of varves. This study documents the key processes influencing sediment deposition throughout Lake Ohau and provides fundamental data for generating a high-resolution palaeoclimate record from this temperate lake. Article in Journal/Newspaper Mackenzie Basin James Cook University, Australia: ResearchOnline@JCU New Zealand Sedimentology 62 3 826 844 |
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Open Polar |
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James Cook University, Australia: ResearchOnline@JCU |
op_collection_id |
ftjamescook |
language |
unknown |
description |
Laminated sediments in Lake Ohau, Mackenzie Basin, New Zealand, offer a potential high-resolution climate record for the past 17 kyr. Such records are particularly important due to the relative paucity of detailed palaeoclimate data from the Southern Hemisphere mid-latitudes. This paper presents outcomes of a study of the sedimentation processes of this temperate lake setting. Hydrometeorological, limnological and sedimentological data were collected over a 14 month period between 2011 and 2013. These data indicate that seasonality in the hydrometeorological system in combination with internal lake dynamics drives a distinct seasonal pattern of sediment dispersal and deposition on a basin-wide scale. Sedimentary layers that accumulate proximal to the lake inflow at the northern end of the lake form in response to discrete inflow events throughout the year and display an event stratigraphy. In contrast, seasonal change in the lake system controls accumulation of light (winter) and dark (summer) laminations at the distal end of the lake, resulting in the preservation of varves. This study documents the key processes influencing sediment deposition throughout Lake Ohau and provides fundamental data for generating a high-resolution palaeoclimate record from this temperate lake. |
format |
Article in Journal/Newspaper |
author |
Roop, Heidi A. Dunbar, Gavin B. Levy, Richard Vandergoes, Marcus J. Forrest, Alexander L. Walker, Sharon L. Purdie, Jennifer Upton, Phaedra Whinney, James |
spellingShingle |
Roop, Heidi A. Dunbar, Gavin B. Levy, Richard Vandergoes, Marcus J. Forrest, Alexander L. Walker, Sharon L. Purdie, Jennifer Upton, Phaedra Whinney, James Seasonal controls on sediment transport and deposition in Lake Ohau, South Island, New Zealand: implications for a high-resolution Holocene palaeoclimate reconstruction |
author_facet |
Roop, Heidi A. Dunbar, Gavin B. Levy, Richard Vandergoes, Marcus J. Forrest, Alexander L. Walker, Sharon L. Purdie, Jennifer Upton, Phaedra Whinney, James |
author_sort |
Roop, Heidi A. |
title |
Seasonal controls on sediment transport and deposition in Lake Ohau, South Island, New Zealand: implications for a high-resolution Holocene palaeoclimate reconstruction |
title_short |
Seasonal controls on sediment transport and deposition in Lake Ohau, South Island, New Zealand: implications for a high-resolution Holocene palaeoclimate reconstruction |
title_full |
Seasonal controls on sediment transport and deposition in Lake Ohau, South Island, New Zealand: implications for a high-resolution Holocene palaeoclimate reconstruction |
title_fullStr |
Seasonal controls on sediment transport and deposition in Lake Ohau, South Island, New Zealand: implications for a high-resolution Holocene palaeoclimate reconstruction |
title_full_unstemmed |
Seasonal controls on sediment transport and deposition in Lake Ohau, South Island, New Zealand: implications for a high-resolution Holocene palaeoclimate reconstruction |
title_sort |
seasonal controls on sediment transport and deposition in lake ohau, south island, new zealand: implications for a high-resolution holocene palaeoclimate reconstruction |
publisher |
Wiley-Blackwell |
publishDate |
2015 |
url |
https://researchonline.jcu.edu.au/41773/1/41773%20Roop%20et%20al%202015.pdf |
geographic |
New Zealand |
geographic_facet |
New Zealand |
genre |
Mackenzie Basin |
genre_facet |
Mackenzie Basin |
op_relation |
http://dx.doi.org/10.1111/sed.12162 https://researchonline.jcu.edu.au/41773/ https://researchonline.jcu.edu.au/41773/1/41773%20Roop%20et%20al%202015.pdf Roop, Heidi A., Dunbar, Gavin B., Levy, Richard, Vandergoes, Marcus J., Forrest, Alexander L., Walker, Sharon L., Purdie, Jennifer, Upton, Phaedra, and Whinney, James (2015) Seasonal controls on sediment transport and deposition in Lake Ohau, South Island, New Zealand: implications for a high-resolution Holocene palaeoclimate reconstruction. Sedimentology, 62 (3). pp. 826-844. |
op_rights |
restricted |
op_doi |
https://doi.org/10.1111/sed.12162 |
container_title |
Sedimentology |
container_volume |
62 |
container_issue |
3 |
container_start_page |
826 |
op_container_end_page |
844 |
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1790602861290192896 |