Rozwój transgresji aalenu i bajosu na Niżu polskim
Abstract
Since long, Bajocian deposits are known in the Polish Lowland; Aalenian deposits, on the other hand, were identified in the Lowland in 1966 (J. Kopik, 1956; J. Znosko, 1957a). Drilling activity in the southwestern part of the Polish Lowland (J. Znosko, 1958) has made possible the first analysis of the development of the Aalenian and Bajocian transgression.On documentary maps the author has indicated outcrops and bore holes where the deposits of both the Aalenian and the Bajocian have been passed through, as well as those bore holes where the contact of deposits older than the. Aalenian with deposits younger then the Aalenian has been identified (and for the Bajocian deposits older then the Bajocian and those younger than the Bajocian).These localities indicate, or might indicate, the margin of the spread of the Aalenian and Bajocian sea. Continuous and dashed lines indicate, in general, surface and subcenozoic outcrops of the Dogger on the author's palaeogeographical maps of the Aalenian and Bajocian of the Polish Lowland there have been entered lines of probable equal thicknesses of deposits, and in this manner has indirectly been indicated the depths of the respective basins. On these maps there also have been shown deep-seated tectonic disruptions ("tektonische Erdnahten") marked in the crystalline substratum, and the outlines of the Carpathian overthrust. Moreover, in separate maps the author has illustrated the position of identified facies of the Aalenian and Bajocian basins.Downloads
Issue
Section
Articles
License
Authors who publish with this journal agree to the following terms:- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as this can lead to productive exchanges and earlier and more frequent citation of the published work (See The Effect of Open Access).