Zobrazeno 1 - 10
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pro vyhledávání: '"A Kleesment"'
Publikováno v:
Estonian Journal of Earth Sciences, Vol 68, Iss 2, Pp 76-87 (2019)
This paper is a methodological development, where optical microscopy, X-ray diffractometry (XRD) and microanalysis under a scanning electron microscope (SEM) were used for comparative determination of heavy minerals in Quaternary sandy sediments in t
Externí odkaz:
https://doaj.org/article/7f073e4f078c480aabf46a433ae10883
Publikováno v:
Bulletin of the Geological Society of Finland, Vol 87, Iss 2, Pp 67-78 (2015)
The Baltic Sea is characterised by tectonic conditions that cause its northern parts to lift and southern parts to sink. Our study area (eastern coast of the Gulf of Riga) has been rather stable for a long time. During transgressive phases in the cou
Externí odkaz:
https://doaj.org/article/be4e3724853348959259c8de3708a318
Autor:
Anne Kleesment, Kristjan Urtson, Tarmo Kiipli, Tõnu Martma, Anne Põldvere, Toivo Kallaste, Alla Shogenova, Kazbulat Shogenov
Publikováno v:
Estonian Journal of Earth Sciences, Vol 62, Iss 3, Pp 139-159 (2013)
The Upper Devonian Plavinas Regional Stage in southern Estonia and northern Latvia is represented by dolostones containing interlayers of dolomitic marlstones and limestones. Petrographic, cathodoluminescence, electron microprobe and isotope techniqu
Externí odkaz:
https://doaj.org/article/b701b5af38cd4895a45ad6342592cecb
Autor:
Kristjan Urtson, Kazbulat Shogenov, Alla Shogenova, Kalle Kirsimäe, Tõnu Martma, Anne Kleesment
Publikováno v:
Estonian Journal of Earth Sciences, Vol 61, Iss 1, Pp 15-32 (2012)
The spatial and temporal distribution of carbonate cementation was investigated in Devonian siliciclastic rocks of the northern part of the Baltic basin, using geochemical (oxygen and carbon stable isotope, microprobe and bulk chemical analyses), opt
Externí odkaz:
https://doaj.org/article/b6862e057d5c464aa7164debb3e5a500
Publikováno v:
Estonian Journal of Earth Sciences, Vol 60, Iss 1, Pp 22-30 (2011)
Teeth of a new elasmobranch Karksiodus mirus gen. et sp. nov. were discovered on two levels in the sandstones of the Karksi outcrop (South Estonia), corresponding to the Härma Beds, lower part of the Burtnieki Regional Stage (Givetian, Middle Devoni
Externí odkaz:
https://doaj.org/article/fd454053cc87417c934d5142f68f48cb
Publikováno v:
Estonian Journal of Earth Sciences, Vol 58, Iss 4, Pp 268-272 (2009)
Partly dissolved prismatic quartz crystals have been found in an Upper Ordovician volcanic ash bed of the Vasagård section on Bornholm, Denmark. Similar crystals occur also in a volcanic ash in the Adze Formation of the Aizpute core, Latvia. Althoug
Externí odkaz:
https://doaj.org/article/b802d6d5d4094f5f8f2439343ba3b0ea
Autor:
Kleesment, Anne
Publikováno v:
Estonian Journal of Earth Sciences, Vol 58, Iss 1, Pp 71-84 (2009)
The roundness and surface texture of quartz grains were studied in Devonian sediments of 32 drill cores. Roundness was estimated in more than 800 samples and surface textures were examined under scanning electron microscope on 70 grains. The grains w
Externí odkaz:
https://doaj.org/article/f8f4f2ae932945e0aac82dc866f0dacc
Publikováno v:
Estonian Journal of Earth Sciences, Vol 57, Iss 4, Pp 219-230 (2008)
Dermal scales of a new chondrichthyan were discovered in four levels in sandstones of the Härma Beds (lower part of the Burtnieki Regional Stage, Middle Devonian) in the Karksi outcrop of South Estonia. The classification of Karksilepis parva gen. e
Externí odkaz:
https://doaj.org/article/1298acf27bb24759955bcfeb0029171a
Publikováno v:
Estonian Journal of Earth Sciences, Vol 68, Iss 2, Pp 76-87 (2019)
This paper is a methodological development, where optical microscopy, X-ray diffractometry (XRD) and microanalysis under a scanning electron microscope (SEM) were used for comparative determination of heavy minerals in Quaternary sandy sediments in t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e14c9a6f2b9a1bb4b876222efe21288d
http://www.kirj.ee/public/Estonian_Journal_of_Earth_Sciences/2019/issue_2/earth-2019-2-76-87.pdf
http://www.kirj.ee/public/Estonian_Journal_of_Earth_Sciences/2019/issue_2/earth-2019-2-76-87.pdf
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