Clay mineralogy, geochemistry and pollen of the Ričice clay deposit, Croatia, a paleo-environmental reconstruction

Scientific paper - Abstract

• Author: Boris Kruk
• Author: Marta Mileusnić https://orcid.org/0000-0003-3776-3661
• Author: Koraljka Bakrač
• Author: Darko Tibljaš
• Author: Željko Kastmüller
• Author: Nikolina Ilijanić
• Author: Ljiljana Kruk
• Editor: Katarzyna Górniak
• Author's institution: Croatian Geological Survey
• Author's institution: University of Zagreb; Faculty of Mining, Geology and Petroleum Engineering; (Department of Mineralogy, Petrology and Mineral Resources)
• Author's institution: University of Zagreb; Faculty of Science; (Department of Geology)
• Scientific / art field, discipline and subdiscipline: NATURAL SCIENCES; Geology

Abstract (english)

The Ričice deposit, as well as the whole of the Crna Mlaka Basin, is mostly composed
of Quaternary clay beds, intercalated with layers and lenses of sands and fine-grained
conglomerates, developed in the Pliocene-Pleistocene period.
The Rečica clay deposit is represented by a seried of sub-parallel and gently inclined,
almost horizontal, layers of silty clay, which are laterally continuous. The major part of the
clays is represented by the alternation of brown and grey, sometimes yellow clays that are
underlain by greenish-grey and grey-blue clays. The clay deposits are 8-12 m thick.
Clays from the Rečica deposit can be classified as a montmorillonite-illite variety, in
accordance with their genetic type. The main mineral constituents are quartz, 10 Å
phyllosilicate (illite and/or mica) and smectite group minerals, while goethite, kaolinite,
chlorite, feldspars and dolomite are subordinate to accessory minerals. The Rečica deposit
can be classified as a montmorillonite-illite variety, in accordance with their genetic type.
The main mineral constituents are quartz, 10 Å phyllosilicate (illite and/or mica) and
smectite group minerals, while goethite, kaolinite, chlorite, feldspars and dolomite are
subordinate to accessory minerals.
The clay deposit is of an allochthonous fluviatile-swamp type. The sediments with clay
were deposited during the Holocene under fluviatile conditions, as well as in areas in which
ponds, swamps and small lakes prevailed.

• Language: english
• Publication type: Scientific paper - Abstract
• Publication status: Published
• Peer review: Peer review - international
• Publication version: Published version
• Publication title: Abstracts / 4th Mid-European Clay Conference 2008
• Series title: Mineralogia. Special papers
• Numbering: vol. 33, p. 96
• p-ISSN: 1896-2203
• URN:NBN: urn:nbn:hr:169:377240
• Publication: 2008
• Conference: Title: 4th Mid-European Clay Conference 2008; Acronym: MECC'08; Location: Zakopane, Poland; Organizer: Mineralogical Society of Poland - Polish Clay Group; Organizer: Faculty of Geology, Geophysics and Environmental Protection, AGH University of Science and Technology; Organizer: Stanisław Staszic Scientific Association; Start date: 2008-09-22; End date: 2008-09-27; Assembly type: Lecture
• Document URL: http://www.ptmin.agh.edu.pl/mpsp30/mpsp33.pdf
• Type of resource: Text
• Publisher: Mineralogical Society of Poland
• Publishing place: Kraków
• Access conditions: Open access
• Created on: 2020-08-24 08:33:49