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  Estonian Journal of Earth Sciences

ISSN 1736-7557 (electronic)  ISSN 1736-4728 (print)
An international scientific journal

Formerly: Proceedings of the Estonian Academy of Sciences, Geology
Published since 1952

Estonian Journal of Earth Sciences

ISSN 1736-7557 (electronic)  ISSN 1736-4728 (print)
An international scientific journal

Formerly: Proceedings of the Estonian Academy of Sciences, Geology
Published since 1952

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Correlation of upper Llandovery–lower Wenlock bentonites in the När (Gotland, Sweden) and Ventspils (Latvia) drill cores: role of volcanic ash clouds and shelf sea currents in determining areal distribution of bentonite; pp. 295–306

(Full article in PDF format) doi: 10.3176/earth.2012.4.08


Authors

Tarmo Kiipli, Toivo Kallaste, Viiu Nestor

Abstract

Study of volcanic ash beds using biostratigraphy, sanidine composition and immobile elements within bentonites has manifested several well-established and some provisional correlations between Gotland and East Baltic sections. Energy dispersive X-ray fluorescence microanalysis of phenocrysts has revealed bentonites containing Mg-rich or Fe-rich biotite. Sanidine phenocrysts contain, in addition to a major Na and K component, often a few per cent of Ca and Ba. On the basis of new correlations the mapping of the distribution areas of bentonites has been extended from the East Baltic to Gotland. The bentonite distribution can be separated into two parts in North Latvia–South Estonia, indicating the existence of shelf sea currents in the Baltic Silurian Basin.

Keywords

correlation, bentonites, K-bentonites, sea currents, Silurian, East Baltic, Gotland.

References

Batchelor , R. A. 2003. Geochemistry of biotite in meta­bentonites as an age discriminant , indicator of regional magma sources and potential correlating tool. Minera­logical Magazine , 67 , 807–817.
http://dx.doi.org/10.1180/0026461036740137

Batchelor , R. A. 2009. Geochemical ‘Golden Spike’ for Lower Palaeozoic metabentonites. Earth & Environ­mental Science Transactions of the Royal Society of Edinburgh , 99 , 177–187.
http://dx.doi.org/10.1017/S1755691009007087

Batchelor , R. A. & Jeppsson , L. 1999. Wenlock meta­bentonites from Gotland , Sweden: geochemistry , sources and potential as chemostratigraphic markers. Geological Magazine , 136 , 661–669.
http://dx.doi.org/10.1017/S001675689900285X

Batchelor , R. A. & Weir , J. A. 1988. Metabentonite geo­chemistry: magmatic cycles and graptolite extinctions at Dob’s Linn , southern Scotland. Transactions of the Royal Society of Edinburgh: Earth Sciences , 79 , 19–41.
http://dx.doi.org/10.1017/S0263593300014085

Batchelor , R. A. , Weir , J. A. & Spjeldnæs , N. 1995. Geo­chemistry of Telychian metabentonites from Vik , Ringerike District , Oslo region. Norsk Geologisk Tidsskrift , 75 , 219–228.

Bergström , S. M. , Huff , W. D. , Kolata , D. R. & Kaljo , D. 1992. Silurian K-bentonites in the Iapetus Region: a pre­liminary event-stratigraphic and tectonomagmatic assessment. GFF , 114 , 327–334.

Fisher , R. V. & Schmincke , H. U. 1984. Pyroclastic Rocks. Springer-Verlag , Berlin , 472 pp.
http://dx.doi.org/10.1007/978-3-642-74864-6

Gailite , L. K. , Ulst , R. J. & Yakovleva , V. I. 1987. Stratotipicheskie i tipovye razrezy Silura Latvii [Stratotype and Type Sections of the Silurian of Latvia]. Zinatne , Riga , 183 pp. [in Russian].

Grahn , Y. 1995. Lower Silurian Chitinozoa and bio­strati­graphy of subsurface Gotland. GFF , 117 , 57–65.
http://dx.doi.org/10.1080/11035899509546199

Hetherington , C. J. , Nakrem , H. A. & Potel , S. 2011. Note on the composition and mineralogy of Wenlock Silurian bentonites from the Ringerike District: implications for local and regional stratigraphic correlation and sedimentary environments. Norwegian Journal of Geology , 91 , 181–192.

Hints , O. , Hints , L. , Meidla , T. & Sohar , K. 2003. Biotic effects of the Ordovician Kinnekulle ash-fall recorded in northern Estonia. Bulletin of the Geological Society of Denmark , 50 , 115–123.

Hints , R. , Kirsimäe , K. , Somelar , P. , Kallaste , T. & Kiipli , T. 2008. Multiphase Silurian bentonites in the Baltic Palaeobasin. Sedimentary Geology , 209 , 69–79.
http://dx.doi.org/10.1016/j.sedgeo.2008.06.009

Inanli , F. Ö. , Huff , W. D. & Bergström , S. M. 2009. The Lower Silurian (Llandovery) Osmundsberg K-bentonite in Baltoscandia and the British Isles: chemical finger­printing and regional correlation. GFF , 131 , 269–279.
http://dx.doi.org/10.1080/11035890903243251

Jeppsson , L. & Männik , P. 1993. High resolution correlations between Gotland and Estonia near the base of Wenlock. Terra Nova , 5 , 348–358.
http://dx.doi.org/10.1111/j.1365-3121.1993.tb00268.x

Kiipli , E. , Kiipli , T. & Kallaste , T. 2006. Identification of O-bentonite in deep shelf sections with implication on stratigraphy and lithofacies , East Baltic Silurian. GFF , 128 , 255–260.
http://dx.doi.org/10.1080/11035890601283255

Kiipli , E. , Kiipli , T. & Kallaste , T. 2009. Reconstruction of currents in the Mid-Ordovician–Early Silurian central Baltic Basin using geochemical and mineralogical indicators. Geology , 37 , 271–274.
http://dx.doi.org/10.1130/G25075A.1

Kiipli , T. & Kallaste , T. 2002. Correlation of Telychian sections from shallow to deep sea facies in Estonia and Latvia based on the sanidine composition of bentonites. Proceedings of the Estonian Academy of Sciences , Geology , 51 , 143–156.

Kiipli , T. & Kallaste , T. 2006. Wenlock and uppermost Llandovery bentonites as stratigraphic markers in Estonia , Latvia and Sweden. GFF , 128 , 139–146.
http://dx.doi.org/10.1080/11035890601282139

Kiipli , T. , Männik , P. , Batchelor , R. A. , Kiipli , E. , Kallaste , T. & Perens , H. 2001. Correlation of Telychian (Silurian) altered volcanic ash beds in Estonia , Sweden and Norway. Norwegian Journal of Geology (Norsk Geologisk Tidskrift) , 81 , 179–193.

Kiipli , T. , Kiipli , E. , Kallaste , T. , Hints , R. , Somelar , P. & Kirsimäe , K. 2007. Altered volcanic ash as an indicator of marine environment , reflecting pH and sedimentation rate – example from the Ordovician Kinnekulle bed of Baltoscandia. Clays and Clay Minerals , 55 , 177–188.
http://dx.doi.org/10.1346/CCMN.2007.0550207

Kiipli , T. , Jeppsson , L. , Kallaste , T. & Söderlund , U. 2008a. Correlation of Silurian bentonites from Gotland and the eastern Baltic using sanidine phenocryst composition , and biostratigraphical consequences. Journal of the Geological Society , 165 , 211–220.
http://dx.doi.org/10.1144/0016-76492006-095

Kiipli , T. , Orlova , K. , Kiipli , E. & Kallaste , T. 2008b. Use of immobile trace elements for the correlation of Telychian bentonites on Saaremaa Island , Estonia , and mapping of volcanic ash clouds. Estonian Journal of Earth Sciences , 57 , 39–52.
http://dx.doi.org/10.3176/earth.2008.1.04

Kiipli , T. , Radzevičius , S. , Kallaste , T. , Motuza , V. , Jeppsson , L. & Wickström , L. 2008c. Wenlock bentonites in Lithuania and correlation with bentonites from sections in Estonia , Sweden and Norway. GFF , 130 , 203–210.
http://dx.doi.org/10.1080/11035890809452773

Kiipli , T. , Soesoo , A. , Kallaste , T. & Kiipli , E. 2008d. Geochemistry of Telychian (Silurian) K-bentonites in Estonia and Latvia. Journal of Volcanology and Geothermal Research , 171 , 45–58.
http://dx.doi.org/10.1016/j.jvolgeores.2007.11.005

Kiipli , T. , Kallaste , T. & Nestor , V. 2010a. Composition and correlation of volcanic ash beds of Silurian age from the eastern Baltic. Geological Magazine , 147 , 895–909.
http://dx.doi.org/10.1017/S0016756810000294

Kiipli , T. , Kallaste , T. , Nestor , V. & Loydell , D. K. 2010b. Integrated Telychian (Silurian) K-bentonite chemo­stratigraphy and biostratigraphy in Estonia and Latvia. Lethaia , 43 , 32–44.
http://dx.doi.org/10.1111/j.1502-3931.2009.00162.x

Kiipli , T. , Einasto , R. , Kallaste , T. , Nestor , V. , Perens , H. & Siir , S. 2011. Geochemistry and correlation of volcanic ash beds from the Rootsiküla Stage (Wenlock–Ludlow) in the eastern Baltic. Estonian Journal of Earth Sciences , 60 , 207–219.
http://dx.doi.org/10.3176/earth.2011.4.02

Kiipli , T. , Radzevičius , S. , Kallaste , T. , Kiipli , E. , Siir , S. , Soesoo , A. & Voolma , M. 2012. The Geniai Tuff in the southern East Baltic area – a new correlation tool near the Aeronian/Telychian stage boundary , Llandovery , Silurian. Bulletin of Geosciences , 87 , 695–704.
http://dx.doi.org/10.3140/bull.geosci.1313

Loydell , D. K. & Nestor , V. 2005. Integrated graptolite and chitinozoan biostratigraphy of the upper Telychian (Llandovery , Silurian) of the Ventspils D-3 core , Latvia. Geological Magazine , 142 , 369–376.
http://dx.doi.org/10.1017/S0016756805000531

Loydell , D. K. , Männik , P. & Nestor , V. 2003. Integrated biostratigraphy of the lower Silurian of the Aizpute-41 core , Latvia. Geological Magazine , 140 , 205–229.
http://dx.doi.org/10.1017/S0016756802007264

Nestor , V. 1994. Early Silurian chitinozoans in Estonia and North Latvia. Academia , 4 , 1–163.

Ray , D. C. 2007. The correlation of Lower Wenlock Series (Silurian) bentonites from the Lower Hill Farm and Eastnor Park boreholes , Midland Platform , England. Proceedings of the Geologists’ Association , 118 , 175–185.

Ray , D. C. , Collings , A. V. J. , Worton , G. J. & Jones , G. 2011. Upper Wenlock bentonites from Wren’s Nest Hill , Dudley: comparisons with prominent bentonites along Wenlock Edge , Shropshire , England. Geological Magazine , 148 , 670–681.
http://dx.doi.org/10.1017/S0016756811000288

Rubel , M. , Hints , O. , Männik , P. , Meidla , T. , Nestor , V. , Sarv , L. & Sibul , I. 2007. Lower Silurian biostratigraphy of the Viirelaid core , western Estonia. Estonian Journal of Earth Sciences , 56 , 193–204.
http://dx.doi.org/10.3176/earth.2007.01

Snäll , S. 1977. Silurian and Ordovician Bentonites of Gotland (Sweden). Stockholm Contributions in Geology XXXI:1 , 80 pp.

Worsley , D. , Baarli , G. , Howe , M. P. A. , Hjaltason , F. & Alm , D. 2011. New data on the Bruflat Formation and the Llandovery/Wenlock transition in the Oslo Region , Norway. Norwegian Journal of Geology , 91 , 101–120.

 
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Current Issue: Vol. 68, Issue 3, 2019




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