Water-soluble chemistry and weathering characteristics of some tills in Western Dronning Maud Land, Antarctica
The water-soluble chemistry and weathering characteristics of tills were studied on three nunataks with differing bedrock characteristics in the Vestfjella and Heimefrontfjella areas of the Western Dronning Maud Land, Antarctica. The chemical analyses were performed using ion chromatography and ICP-...
Published in: | Bulletin of the Geological Society of Finland |
---|---|
Main Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Geological Society of Finland
1997
|
Subjects: | |
Online Access: | https://doi.org/10.17741/bgsf/69.1-2.005 https://doaj.org/article/0ab27d3b299b4addb7b73558521781fb |
id |
ftdoajarticles:oai:doaj.org/article:0ab27d3b299b4addb7b73558521781fb |
---|---|
record_format |
openpolar |
spelling |
ftdoajarticles:oai:doaj.org/article:0ab27d3b299b4addb7b73558521781fb 2023-05-15T13:39:43+02:00 Water-soluble chemistry and weathering characteristics of some tills in Western Dronning Maud Land, Antarctica P. Lintinen J. Nenonen 1997-12-01T00:00:00Z https://doi.org/10.17741/bgsf/69.1-2.005 https://doaj.org/article/0ab27d3b299b4addb7b73558521781fb EN eng Geological Society of Finland http://www.geologinenseura.fi/bulletin/Volume69/sgs_bt_069_pages_057_071.pdf https://doaj.org/toc/0367-5211 https://doaj.org/toc/1799-4632 doi:10.17741/bgsf/69.1-2.005 0367-5211 1799-4632 https://doaj.org/article/0ab27d3b299b4addb7b73558521781fb Bulletin of the Geological Society of Finland, Vol 69, Iss 1-2, Pp 57-71 (1997) soils till chemical composition ions pH nunataks weathering Queen Maud Land Antarctica Geology QE1-996.5 article 1997 ftdoajarticles https://doi.org/10.17741/bgsf/69.1-2.005 2022-12-30T23:33:39Z The water-soluble chemistry and weathering characteristics of tills were studied on three nunataks with differing bedrock characteristics in the Vestfjella and Heimefrontfjella areas of the Western Dronning Maud Land, Antarctica. The chemical analyses were performed using ion chromatography and ICP-AES. The relative weathering characteristics of the till surface boulders was assessed in study locations. No colour differences were observed in test pits dug in Basen and Utpostane nunataks at Vestfjella, whereas the till in Mygehenget nunatak at Heimefrontfjella has a pronounced soil profile in which the surface part has a banded rusty brown and light-coloured accumulations. The highest concentrations of readily soluble ions were recorded in the Mygehenget samples characterized by high (SO4)2- (5800-39000 ppm) and Mg concentrations (540-6000 ppm), while the Basen samples had the highest concentrations of Fe2+(23-390 ppm), Al3+ (60-1000 ppm) and Si4+ (23-1700 ppm) and the Utpostane samples the lowest ones. The SO4/Na+, Na+/CI- and Mg2+/Na+ ratios for the samples differ markedly from those typically encountered in sea water. The presence of the highest concentrations of many of the analysed ions in the Mygehenget soil samples is in line with the advanced weathering of the surface boulders. The high Fe2+, Si4+ and Al3+ concentrations in the Basen samples may be attributable to the weathering of olivine alteration products. Article in Journal/Newspaper Antarc* Antarctica Dronning Maud Land Queen Maud Land Directory of Open Access Journals: DOAJ Articles Dronning Maud Land Queen Maud Land ENVELOPE(12.000,12.000,-72.500,-72.500) Heimefrontfjella ENVELOPE(-11.000,-11.000,-74.667,-74.667) Vestfjella ENVELOPE(-14.000,-14.000,-73.167,-73.167) Basen ENVELOPE(-13.400,-13.400,-73.333,-73.333) Utpostane ENVELOPE(-15.667,-15.667,-73.917,-73.917) Three Nunataks ENVELOPE(154.833,154.833,-80.067,-80.067) Mygehenget ENVELOPE(-11.392,-11.392,-74.868,-74.868) Bulletin of the Geological Society of Finland 69 1-2 57 71 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
soils till chemical composition ions pH nunataks weathering Queen Maud Land Antarctica Geology QE1-996.5 |
spellingShingle |
soils till chemical composition ions pH nunataks weathering Queen Maud Land Antarctica Geology QE1-996.5 P. Lintinen J. Nenonen Water-soluble chemistry and weathering characteristics of some tills in Western Dronning Maud Land, Antarctica |
topic_facet |
soils till chemical composition ions pH nunataks weathering Queen Maud Land Antarctica Geology QE1-996.5 |
description |
The water-soluble chemistry and weathering characteristics of tills were studied on three nunataks with differing bedrock characteristics in the Vestfjella and Heimefrontfjella areas of the Western Dronning Maud Land, Antarctica. The chemical analyses were performed using ion chromatography and ICP-AES. The relative weathering characteristics of the till surface boulders was assessed in study locations. No colour differences were observed in test pits dug in Basen and Utpostane nunataks at Vestfjella, whereas the till in Mygehenget nunatak at Heimefrontfjella has a pronounced soil profile in which the surface part has a banded rusty brown and light-coloured accumulations. The highest concentrations of readily soluble ions were recorded in the Mygehenget samples characterized by high (SO4)2- (5800-39000 ppm) and Mg concentrations (540-6000 ppm), while the Basen samples had the highest concentrations of Fe2+(23-390 ppm), Al3+ (60-1000 ppm) and Si4+ (23-1700 ppm) and the Utpostane samples the lowest ones. The SO4/Na+, Na+/CI- and Mg2+/Na+ ratios for the samples differ markedly from those typically encountered in sea water. The presence of the highest concentrations of many of the analysed ions in the Mygehenget soil samples is in line with the advanced weathering of the surface boulders. The high Fe2+, Si4+ and Al3+ concentrations in the Basen samples may be attributable to the weathering of olivine alteration products. |
format |
Article in Journal/Newspaper |
author |
P. Lintinen J. Nenonen |
author_facet |
P. Lintinen J. Nenonen |
author_sort |
P. Lintinen |
title |
Water-soluble chemistry and weathering characteristics of some tills in Western Dronning Maud Land, Antarctica |
title_short |
Water-soluble chemistry and weathering characteristics of some tills in Western Dronning Maud Land, Antarctica |
title_full |
Water-soluble chemistry and weathering characteristics of some tills in Western Dronning Maud Land, Antarctica |
title_fullStr |
Water-soluble chemistry and weathering characteristics of some tills in Western Dronning Maud Land, Antarctica |
title_full_unstemmed |
Water-soluble chemistry and weathering characteristics of some tills in Western Dronning Maud Land, Antarctica |
title_sort |
water-soluble chemistry and weathering characteristics of some tills in western dronning maud land, antarctica |
publisher |
Geological Society of Finland |
publishDate |
1997 |
url |
https://doi.org/10.17741/bgsf/69.1-2.005 https://doaj.org/article/0ab27d3b299b4addb7b73558521781fb |
long_lat |
ENVELOPE(12.000,12.000,-72.500,-72.500) ENVELOPE(-11.000,-11.000,-74.667,-74.667) ENVELOPE(-14.000,-14.000,-73.167,-73.167) ENVELOPE(-13.400,-13.400,-73.333,-73.333) ENVELOPE(-15.667,-15.667,-73.917,-73.917) ENVELOPE(154.833,154.833,-80.067,-80.067) ENVELOPE(-11.392,-11.392,-74.868,-74.868) |
geographic |
Dronning Maud Land Queen Maud Land Heimefrontfjella Vestfjella Basen Utpostane Three Nunataks Mygehenget |
geographic_facet |
Dronning Maud Land Queen Maud Land Heimefrontfjella Vestfjella Basen Utpostane Three Nunataks Mygehenget |
genre |
Antarc* Antarctica Dronning Maud Land Queen Maud Land |
genre_facet |
Antarc* Antarctica Dronning Maud Land Queen Maud Land |
op_source |
Bulletin of the Geological Society of Finland, Vol 69, Iss 1-2, Pp 57-71 (1997) |
op_relation |
http://www.geologinenseura.fi/bulletin/Volume69/sgs_bt_069_pages_057_071.pdf https://doaj.org/toc/0367-5211 https://doaj.org/toc/1799-4632 doi:10.17741/bgsf/69.1-2.005 0367-5211 1799-4632 https://doaj.org/article/0ab27d3b299b4addb7b73558521781fb |
op_doi |
https://doi.org/10.17741/bgsf/69.1-2.005 |
container_title |
Bulletin of the Geological Society of Finland |
container_volume |
69 |
container_issue |
1-2 |
container_start_page |
57 |
op_container_end_page |
71 |
_version_ |
1766122502192365568 |