Mineralogy and Chemical Composition of Cryosols and Andosols in Antarctica

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43210%2F18%3A43911835" target="_blank" >RIV/62156489:43210/18:43911835 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.17221/231/2016-SWR" target="_blank" >http://dx.doi.org/10.17221/231/2016-SWR</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.17221/231/2016-SWR" target="_blank" >10.17221/231/2016-SWR</a>

Result language

angličtina

Original language name

Mineralogy and Chemical Composition of Cryosols and Andosols in Antarctica

Original language description

The detail mineralogical analysis of soil samples from the islands near the north-eastern extremity of the Antarctic Peninsula was applied to evaluate the presence of chemical along with physical weathering. We assumed the highest degree of chemical weathering to occur at surface horizons (higher temperature and presence of liquid water). The increased amount of potential weathering products, phyllosilicates (mainly montmorillonite and chlorite), microcrystalline polymorphous silica, Fe-oxyhydroxides, and the decreased number of initial parent phases (feldspars, volcanic glass, quartz, olivine) in fraction &lt; 2 mm and in the upper soil horizons confirmed the process of chemical weathering. The dominant amount of montmorillonite in the clay fraction was used to determine the crystal thickness using the BWA technique. Mean thickness of crystal in soil profiles rising towards the surface suggests the effect of chemical weathering. The isotopic evaluation of montmorillonite could provide further proof of chemical weathering in future research. The origin of zeolite mineral - clinoptilolite, in the studied samples present mostly at ca. 10 wt %, has remained undisclosed. Clinoptilolite could be a product of hydrothermal alteration, chemical weathering or both. The question of its origin is also a subject for future research.The distribution of macro elements of the studied soil samples confirms more chemical weathered material in the soil profiles of James Ross Island. It also indicates more intensive or longer weathering on James Ross and King George Islands than on Deception Island.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10505 - Geology

Project

<a href="/en/project/QJ1210263" target="_blank" >QJ1210263: Agronomic measures to a reduction of water erosion on arable land with utilization of organic matter plough down</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2018

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Soil and Water Research

ISSN

1801-5395

e-ISSN

—

Volume of the periodical

13

Issue of the periodical within the volume

2

Country of publishing house

CZ - CZECH REPUBLIC

Number of pages

13

Pages from-to

61-73

UT code for WoS article

000430186300001

EID of the result in the Scopus database

2-s2.0-85045432554