Glacial geomorphology of the Brabazon & Butler Downs, Rangitata Valley, South Island, New Zealand
The inland valleys of New Zealand’s South Island were heavily glaciated during the last glacial cycle. Subsequent fluvial incision has eroded out glacial deposits from the valleys in many locations, making it difficult to reconstruct glacial dynamics and chronology. The Brabazon and Butler Downs lie...
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Format: | Article |
Language: | English |
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Taylor & Francis Group
2017-11-01
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Series: | Journal of Maps |
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Online Access: | http://dx.doi.org/10.1080/17445647.2017.1336122 |
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author | Rosabella Borsellino James Shulmeister Stefan Winkler |
author_facet | Rosabella Borsellino James Shulmeister Stefan Winkler |
author_sort | Rosabella Borsellino |
collection | DOAJ |
description | The inland valleys of New Zealand’s South Island were heavily glaciated during the last glacial cycle. Subsequent fluvial incision has eroded out glacial deposits from the valleys in many locations, making it difficult to reconstruct glacial dynamics and chronology. The Brabazon and Butler Downs lie in a fault-controlled intra-montaine basin that has been largely protected from fluvial erosion and the area contains extensive evidence for multiple glacial margins. This paper presents a detailed glacial geomorphology map of the Brabazon and Butler Downs at a scale of 1:20,000. Glacial landforms have been mapped and subdivided into three main zones: an upper zone distinguished by a flight of kame terraces, a middle zone containing kettles and meltwater channels, and a lower zone of lateral moraines. The new map provides insight into former glacial environments in the region and provides a related framework for future paleoclimate reconstructions. |
first_indexed | 2024-12-12T15:39:42Z |
format | Article |
id | doaj.art-118e9783a5fd408e8556b7bcbbf2c402 |
institution | Directory Open Access Journal |
issn | 1744-5647 |
language | English |
last_indexed | 2024-12-12T15:39:42Z |
publishDate | 2017-11-01 |
publisher | Taylor & Francis Group |
record_format | Article |
series | Journal of Maps |
spelling | doaj.art-118e9783a5fd408e8556b7bcbbf2c4022022-12-22T00:19:55ZengTaylor & Francis GroupJournal of Maps1744-56472017-11-0113250251010.1080/17445647.2017.13361221336122Glacial geomorphology of the Brabazon & Butler Downs, Rangitata Valley, South Island, New ZealandRosabella Borsellino0James Shulmeister1Stefan Winkler2University of QueenslandUniversity of QueenslandUniversität WürzburgThe inland valleys of New Zealand’s South Island were heavily glaciated during the last glacial cycle. Subsequent fluvial incision has eroded out glacial deposits from the valleys in many locations, making it difficult to reconstruct glacial dynamics and chronology. The Brabazon and Butler Downs lie in a fault-controlled intra-montaine basin that has been largely protected from fluvial erosion and the area contains extensive evidence for multiple glacial margins. This paper presents a detailed glacial geomorphology map of the Brabazon and Butler Downs at a scale of 1:20,000. Glacial landforms have been mapped and subdivided into three main zones: an upper zone distinguished by a flight of kame terraces, a middle zone containing kettles and meltwater channels, and a lower zone of lateral moraines. The new map provides insight into former glacial environments in the region and provides a related framework for future paleoclimate reconstructions.http://dx.doi.org/10.1080/17445647.2017.1336122Glacial geomorphologyNew Zealandkame terracesmoraineskettlesRangitata |
spellingShingle | Rosabella Borsellino James Shulmeister Stefan Winkler Glacial geomorphology of the Brabazon & Butler Downs, Rangitata Valley, South Island, New Zealand Journal of Maps Glacial geomorphology New Zealand kame terraces moraines kettles Rangitata |
title | Glacial geomorphology of the Brabazon & Butler Downs, Rangitata Valley, South Island, New Zealand |
title_full | Glacial geomorphology of the Brabazon & Butler Downs, Rangitata Valley, South Island, New Zealand |
title_fullStr | Glacial geomorphology of the Brabazon & Butler Downs, Rangitata Valley, South Island, New Zealand |
title_full_unstemmed | Glacial geomorphology of the Brabazon & Butler Downs, Rangitata Valley, South Island, New Zealand |
title_short | Glacial geomorphology of the Brabazon & Butler Downs, Rangitata Valley, South Island, New Zealand |
title_sort | glacial geomorphology of the brabazon butler downs rangitata valley south island new zealand |
topic | Glacial geomorphology New Zealand kame terraces moraines kettles Rangitata |
url | http://dx.doi.org/10.1080/17445647.2017.1336122 |
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