Diatomowe skały krzemionkowe z eocenu dolnego Karpat Borysławskich
Abstract
SILICEOUS DIATOMITE ROCKS IN THE LOWER EOCENE OF THE BORYSŁAW CARPATHIANSThe author reports the discovery of siliceous diatomite rocks in the variegated Supra-Jamna horizon (Lower Eocene) in the area of the Borysław Carpathians. The siliceous rocks of this locality have been repeatedly described from a number of sections existing in the region of the Eastern Carpathians; usually they were called hornstones. Macroscopically these rocks resemble the green radiolarites from the Middle Cretaceous of the Western Carpathians.In thin sections prepared from these rocks there may be observed a copious. accumulation of diatoms of 0.04 to 0.1 mm. size. In their great majority they belong to Triceratiinnae and Hemiaulinae, especially to genus Eutriceratium and to subgenus Euhemiaulus. These diatoms are marine forms. Their planktonic character might explain the wide spread of the siliceous rocks within the Lower Eocene in the area of the Eastern CarpathiansDownloads
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).