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...

Full description

Bibliographic Details
Main Authors: Rosabella Borsellino, James Shulmeister, Stefan Winkler
Format: Article
Language:English
Published: Taylor & Francis Group 2017-11-01
Series:Journal of Maps
Subjects:
Online Access:http://dx.doi.org/10.1080/17445647.2017.1336122
_version_ 1829113645414481920
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
work_keys_str_mv AT rosabellaborsellino glacialgeomorphologyofthebrabazonbutlerdownsrangitatavalleysouthislandnewzealand
AT jamesshulmeister glacialgeomorphologyofthebrabazonbutlerdownsrangitatavalleysouthislandnewzealand
AT stefanwinkler glacialgeomorphologyofthebrabazonbutlerdownsrangitatavalleysouthislandnewzealand