ORIGIN OF THE CIECHOCINEK FORMATION CLAYS (LOWER JURASSIC, TOARCIAN) FROM SOUTHERN POLAND AND THEIR ECONOMIC SIGNIFICANCE
Journal Title: Biuletyn Państwowego Instytutu Geologicznego - Year 2010, Vol 439, Issue 439
Abstract
This paper summarizes the results of research performed on the Ciechocinek Formation clays (Lower Jurassic, Toarcian) and presents the results of a new mineralogical and geochemical study of the Brody–Lubienia BL-1 and Suliszowice BN-38 boreholes. In the lower part of the studied sections (tenuicostatum zone), clay minerals assemblages comprise predominantly detrital illite with subordinatekaolinite and chlorite. Illite-dominated sedimentation was interrupted by an increased input of kaolinite at the VIIIb/VIIIc parasequence boundary. In the upper part (falciferum zone) the kaolinite content is significantly higher than in the lower part. Smectite was not observed in the whole section. The clay minerals composition was mostly controlled by climatic conditions and weathering regime. Duringthe tenuicostatum zone, the influence of Late Pliensbachian cooling was still noticeable. It coincides with the higher illite and chlorite content in the lower interval due to prevention from extended hydrolysis. Levels of the high kaolinite/illite ratio at the VIIIb/VIIIc parasequence boundary interval suggest strong continental weathering in the humid-subtropical to tropical climate related to the onset of the main phase of global warming that was recorded in many sections of Europe at the top of the tenuicostatum zone. In the upper interval of the Ciechocinek Formation, kaolinite is still the dominant clay mineral suggesting mostly warm and humid climate conditions. The palaeoclimate record wasslightly modified by mineralogic composition of material supplied from source areas and by palaeoenvironmental conditions. Diagenetic processes were not sufficient to transform the initial kaolinite, but it may have altered smectite and mixed-layers into illite and/or chlorite. Only the clay deposits from the lower part of the Ciechocinek Formation locally reveal a real economic significance because of lithologic development and lower siderite content. They contain economic resources and reserves of raw materials very good for building ceramics and some type of stoneware clays. In contrast to Hettangian deposits the refractory and other ceramic clays are absent because of kaolinite depletion.
Authors and Affiliations
Paweł BRAŃSKI
Keywords
Related Articles
- EP ID EP64610
- DOI -
- Views 55
- Downloads 0
OKREŚLENIE MIĄŻSZOŚCI ZWIETRZELINY LATERYTOWEJ ORAZ GŁĘBOKOŚCI WYSTĘPOWANIA WÓD GRUNTOWYCH W KIBEHO (RWANDA) ZA POMOCĄ PIONOWYCH SONDOWAŃ ELEKTROOPOROWYCH
W pracy podjęto problem wyznaczenia miąższości zwietrzeliny laterytowej oraz oceny warunków hydrogeologicznych na potrzeby rozwoju infrastruktury związanej z rozbudową Sanktuarium Maryjnego w Kibeho (Rwanda). Jest to pie...
GEOLOGICAL AND PHYSICAL-CHEMICAL CHARACTERISTICS OF LOWER PALEOZOIC DEPOSITS OF VOLHYNO-PODILLYA, WESTERN UKRAINE
The 340 to 1102 m thick multi-facies sequence was deposited during the Silurian at the Volhyno-Podillya margin of the East European Platform. The open shelf facies bordered from the west by a barrier formed by reefs, bio...
Mesostructural analysis of glaciotectonic structures and its application to reconstruction of the ice sheet advance directions
Ocena możliwości eksploatacji zasobów złoża węgla brunatnego Bełchatów – pole Kamieńsk
Wobec kurczących się zasobów złoża węgla brunatnego Bełchatów w obecnie eksploatowanych polach Bełchatów i Szczerców, przedłużenie funkcjonowania elektrowni Bełchatów, produkującej ok. 20% polskiej energii elektrycznej,...
CHANGES IN CHEMICAL COMPOSITION OF WATERS WITHIN PERMIAN SEDIMENTS IN Zn-Pb ORE MINE POMORZANY NEAR OLKUSZ
In a paper the results of over 40 years’ hydrochemical investigations of waters occurring within Permian sediments in Pomorzany mine near Olkusz are presented. Short-term and long-term effects of mining activities and de...