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Wenlock bentonites in Lithuania and correlation with bentonites from sections in Estonia, Sweden and Norway

Kiipli, Tarmo; Radzevicius, Sigitas; Kallaste, Toivo; Motuza, Vykintas; Jeppsson, Lennart LU and Wickstrom, Linda M. (2008) In GFF 130(4). p.203-210
Abstract
Seven Wenlock bentonite beds from four drill cores in Lithuania with sufficient thickness for sampling were analysed by XRD and XRF. The sanidine composition of bentonites combined with graptolite biozonation of the host rock were used for correlations. Two of the studied bentonite samples at the antennularius/flexilis biozone boundary can be confidently correlated between two Lithuanian sections. Four of the studied bentonites can be correlated with lower or higher probability with earlier studied bentonites in Estonia and Sweden. Identification of the Grotlingbo Bentonite in the Vidukle-61 drill core, and descriptions of other east Baltic sections enables composition of it thickness map of the Grotlingbo Bentonite. The thickness pattern... (More)
Seven Wenlock bentonite beds from four drill cores in Lithuania with sufficient thickness for sampling were analysed by XRD and XRF. The sanidine composition of bentonites combined with graptolite biozonation of the host rock were used for correlations. Two of the studied bentonite samples at the antennularius/flexilis biozone boundary can be confidently correlated between two Lithuanian sections. Four of the studied bentonites can be correlated with lower or higher probability with earlier studied bentonites in Estonia and Sweden. Identification of the Grotlingbo Bentonite in the Vidukle-61 drill core, and descriptions of other east Baltic sections enables composition of it thickness map of the Grotlingbo Bentonite. The thickness pattern with two axes, and the layered composition of the Grotlingbo Bentonite, indicate a change of the wind direction during a long lasting eruption. Hypothetical location of the volcanic source in the Silurian was within the zone of the Baltica-Laurentia collision. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
graptolites, sanidine, K-bentonites, Wenlock, bentonites, Lithuania, correlation
in
GFF
volume
130
issue
4
pages
203 - 210
publisher
Geological Society of Sweden
external identifiers
  • wos:000265297200003
  • scopus:64949159177
ISSN
2000-0863
language
English
LU publication?
yes
id
44fe4d79-52b1-4a82-91da-7c669d86bed6 (old id 1399260)
alternative location
http://www.gff-online.se/site/article.asp?articleID=1011
date added to LUP
2009-05-28 13:23:48
date last changed
2017-08-13 03:42:16
@article{44fe4d79-52b1-4a82-91da-7c669d86bed6,
  abstract     = {Seven Wenlock bentonite beds from four drill cores in Lithuania with sufficient thickness for sampling were analysed by XRD and XRF. The sanidine composition of bentonites combined with graptolite biozonation of the host rock were used for correlations. Two of the studied bentonite samples at the antennularius/flexilis biozone boundary can be confidently correlated between two Lithuanian sections. Four of the studied bentonites can be correlated with lower or higher probability with earlier studied bentonites in Estonia and Sweden. Identification of the Grotlingbo Bentonite in the Vidukle-61 drill core, and descriptions of other east Baltic sections enables composition of it thickness map of the Grotlingbo Bentonite. The thickness pattern with two axes, and the layered composition of the Grotlingbo Bentonite, indicate a change of the wind direction during a long lasting eruption. Hypothetical location of the volcanic source in the Silurian was within the zone of the Baltica-Laurentia collision.},
  author       = {Kiipli, Tarmo and Radzevicius, Sigitas and Kallaste, Toivo and Motuza, Vykintas and Jeppsson, Lennart and Wickstrom, Linda M.},
  issn         = {2000-0863},
  keyword      = {graptolites,sanidine,K-bentonites,Wenlock,bentonites,Lithuania,correlation},
  language     = {eng},
  number       = {4},
  pages        = {203--210},
  publisher    = {Geological Society of Sweden},
  series       = {GFF},
  title        = {Wenlock bentonites in Lithuania and correlation with bentonites from sections in Estonia, Sweden and Norway},
  volume       = {130},
  year         = {2008},
}