Gogolin Formation

Gogolin Formation –

Historical name coming from Gogolin, a small town in south Poland, where the Gogolin Formation was described for the first time, and where the main stratotypes have been exposed (see section Stratotypes).^[4]

Gogolin
Town
Gogolin
Coordinates: 50°29′N 18°02′E / 50.483°N 18.033°E / 50.483; 18.033
Country	Poland
Voivodeship	Opole
County	Krapkowice
Gmina	Gogolin

Age

The Late Olenekian or Early Aegean (Anisian) to Pelsonian (Anisian),.^[6][7]

Rocks

The formation is built of various carbonates which were deposited on a carbonate ramp.^[4][8]

Subdivision

This Formation has recently been divided into four members, six beds, and two horizons:^[4][5]

1. Zakrzów
   bedded, wavy bedded and marly micritic limestones, b) Dąbrówka Bioclastic Limestone Bed – thick- to medium-bedded, cross-bedded crinoidal limestones, c) Podbór Bioclastic Limestone Bed – thin- to medium-bedded, graded, horizontally and cross-bedded bioclastic
   limestones and wavy-bedded micritic limestones;
2. The Skała Marl Member – marls interbedded with micritic and bioclastic limestones; the lowermost part of this member is locally built of broken-up limestone beds and lumps which are covered by an intraformational conglomerate with small intraclasts – they are divided as Kocina Intraformational Conglomerate Bed;
3. The Emilówka Cellular Limestone Member, which includes: a) Karłubiec Bioclastic Limestone Bed – massive, cross-bedded, thin- to medium-bedded bioclastic and micritic limestones, b) Otmęt Marly Limestone Bed – strongly porous, thin-bedded marly limestones that are, in fact, dedolomitized dolomites;
4. Odrowąż marly limestone horizon – marls, thin- to medium-bedded, graded, cross-bedded and horizontally bedded bioclastic limestones and thin layers of platy and wavy bedded micritic limestones;
5. Malnia limestone horizon – thin- to medium-bedded, graded, horizontally and cross-bedded bioclastic limestones, thin-bedded, platy and wavy-bedded micritic limestones;
6. Ligota Hill Wavy-Bedded Limestone Member – wavy-bedded and crumpled micritic limestones intercalated with medium- to thin-bedded, graded, cross- and horizontally bedded, bioclastic limestones.

Stratotypes

Stratotypes are located at Gogolin and its vicinity, Błotnica Strzelecka and Ligota Dolna (southern Poland).^[4][5]

References