
Mats Eriksson
Professor

The Volkhov-Kunda transition and the base of the Holen Limestone at Kinnekulle, Västergötland, Sweden
Författare
Summary, in English
The transition between the Volkhov and Kunda Baltoscandian stages (Darriwilian, Middle Ordovician) is associated with a notable sea-level fall. This study documents the lithologic and sedimentologic expression of this event in the orthoceratite limestone at the Hällekis quarry, Kinnekulle, Sweden. The uppermost Volkhov strata are characterized by abundant limonitic hardgrounds and relatively coarse carbonate textures, including intraclasts and ferruginous coated grains. The top of a conspicuous wacke-packstone interval is identified as the local Volkhov-Kunda and Lanna Limestone-Holen Limestone boundary. The boundary is overlain by marly limestone, in which limonitic hardgrounds become uncommon and a temporary fining of carbonate textures occurs. An overall trend of increasing (mainly skeletal) grain concentration and diversity is seen throughout the studied succession. Based on the collective observations, a sea-level curve for the upper Volkhov and lower Kunda is presented.
Avdelning/ar
- Berggrundsgeologi
Publiceringsår
2014
Språk
Engelska
Sidor
167-171
Publikation/Tidskrift/Serie
GFF
Volym
136
Issue
1
Dokumenttyp
Artikel i tidskrift
Förlag
Taylor & Francis
Ämne
- Geology
Nyckelord
- Kinnekulle
- Lanna Limestone
- Holen Limestone
- carbonate sedimentology
- Volkhov
- Kunda
Aktiv
Published
Projekt
- Early–Middle Ordovician biotic and sedimentary dynamics in the Baltoscandian paleobasin
ISBN/ISSN/Övrigt
- ISSN: 2000-0863