ŚRODOWISKA SEDYMENTACJI I PALINOFACJE KREDY DOLNEJ W OTWORACH WIERTNICZYCH CIECHOCINEK IG 3, MSZCZONÓW IG 1 I KORABIEWICE PIG 1

Abstract

LOWER CRETACEOUS SEDIMENTARY ENVIRONMENTS AND PALYNOFACIES IN THE CIECHOCINEK IG 3, MSZCZONÓW IG 1 AND KORABIEWICE PIG 1 BOREHOLESAbstract. Based on lithological and sedimentological logging and palynological analysis, sedimentary environments and palynofacies were identified in the Lower Cretaceous of the Ciechocinek IG 3, Mszczonów IG 1 and Korabiewice PIG 1 boreholes. Athorough analysis of the palynological spectrum was performed, determining the ratio between the amount of palynomorphs and the total of plankton, the amount of phytoclasts in the total kerogen, and the content of organic matter. Palynological data were correlated with sedimentological, lithofacies and paleogeographical data. The research resulted in a general recognition of sedimentary environments and palynofacies in the carbonate-clastic deposition zone and in a zone of an active salt pillow. The following sedimentary environments were identified in the Lower Cretaceous sediments, based on the analysed material and with regard to the palynological spectrum: offshore, lower-middle shoreface, embayment, lagoon and shallow carbonate-siliciclastic shelf. In case of the absence of diagnostic features for exact determination of sedimentary environments, the environments were defined as generally marine.