Wyniki wyszukiwania - BazTech

Ograniczanie wyników

Powiadomienia systemowe

Sesja wygasła!
Sesja wygasła!

Znaleziono wyników: 2

Liczba wyników na stronie

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych: dark shales

Sortuj według:

Ogranicz wyniki do:

Materia organiczna rozproszona w ciemnych turbidytach górnego eocenu płaszczowiny śląskiej (Karpaty zewnętrzne, Polska)

Waliczek Marta, Waśkowska Anna, Machowski Grzegorz

Przegląd Geologiczny

2021

Vol. 69, nr 7

458--462

In this study, weapply microscopic analysis to evaluate thematurity of organic matter and characterise the macerals dispersed in the Upper Eocene shale samples from the Hieroglyphic Formation (Silesian Nappe, Outer Carpathians). The mean vitrinite reflectance values indicate the presence of organic matter immature to hydrocarbon generation (Ro≈0.43%).The main organic component dispersed in analysed samples is vitrinite, characteristic of kerogen type III.

Stratigraphy of the Hieroglyphic Beds with “Black Eocene” facies in the Silesian Nappe (Outer Flysch Carpathians, Poland)

Waśkowska A.

Annales Societatis Geologorum Poloniae

2015

Vol. 85, No. 2

321--343

The lithologic variation and biostratigraphy of the Hieroglyphic Beds were examined in the Szczyrzyc Depression, where four lithologic complexes were distinguished. The biostratigraphy is based on agglutinated foraminifera and supported by scarce planktonic foraminifera. The lower part of the Hieroglyphic Beds contains non-characteristic, Ypresian foraminifers, including assemblages of small-sized Trochammina and at successively higher levels representatives of the Bartonian Ammodiscus latus Zone and the Priabonian Reticulophragmium gerochi Zone. The upper part of the Hieroglyphic Beds, composed of dark shales enriched in TOC (1–2%), corresponds to the deposits of the so-called Black Eocene, known from the Fore-Magura group of nappes. Redeposited flysch rocks resulting from episodes of subaqueous mass flow occur in the lower Bartonian part of the section.