Presented results show complexity of the structure of varved clay that affect the mechanical behavior.
Tankiewicz Matylda 2016, 'Structure investigations of layered soil – varved clay', Annals of Warsaw University of Life Sciences, Land Reclamationhttp://www.degruyter.com/view/j/sggw.2016.48.issue-4/sggw-2016-0028/sggw-2016-0028.xml?format=INT. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
First, the texture of each varve and varved clay as a composite have been estimated.
Tankiewicz Matylda 2016, 'Structure investigations of layered soil – varved clay', Annals of Warsaw University of Life Sciences, Land Reclamationhttp://www.degruyter.com/view/j/sggw.2016.48.issue-4/sggw-2016-0028/sggw-2016-0028.xml?format=INT. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Two profiles of varved clay were included for comparison.
R. Repo 1973, 'Pollen analyses of tills from SE-Finland', Bulletin of the Geological Society of Finlandhttp://www.geologinenseura.fi/bulletin/Volume45/sgs_bt_045_2_pages_181_203.pdf. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Especially important are varved sediments which can provide high-resolution (annual) records of those changes.
Tylmann Wojciech, Głowacka Paulina, Szczerba Agnieszka 2017, 'Tracking climate signals in varved lake sediments: research strategy and key sitesfor comprehensive process studies in the Masurian Lakeland', Limnological Reviewhttp://www.degruyter.com/view/j/limre.2017.17.issue-3/limre-2017-0015/limre-2017-0015.xml?format=INT. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
They are mainly filled with glacial (till), glaciofluvial (sand, gravel, and pebbles), glaciolacustrine (varved clay), and marine (fine-grained sand) deposits.
Vaher, Rein, Miidel, Avo, Raukas, Anto, Tavast, Elvi 2010, 'Ancient buried valleys in the city of Tallinn and adjacent area', Estonian Journal of Earth Scienceshttp://eap.ee/public/Estonian_Journal_of_Earth_Sciences/2010/issue_1/earth-2010-1-37-48.pdf. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Trace fossils discovered in the varved clays are discussed and assigned to the activities of benthonic insect larvae.
P.L. Gibbard 1977, 'Fossil tracks from varved sediments near Lammi, South Finland', Bulletin of the Geological Society of Finlandhttp://www.geologinenseura.fi/bulletin/Volume49/sgs_bt_049_1_pages_053_057.pdf. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Comparison of the engineering properties of varved clays to other experimental sites points to their similar geological history.
Zawrzykraj Piotr Zbigniew 2017, 'Deformability Parameters of Varved Clays From the Iłów (Central Poland) Area Basedon the Selected Field Tests', Studia Geotechnica et Mechanicahttp://www.degruyter.com/view/j/sgem.2017.39.issue-1/sgem-2017-0009/sgem-2017-0009.xml?format=INT. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)