Publication details
Střednopleistocenní sesuv na svazích Drahanské vrchoviny u Viničných Šumic
| Title in English | Middle Pleistocene landslide on the slopes of the Drahany Highlands close to Viničné Šumice village |
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| Authors | |
| Year of publication | 2019 |
| Type | Article in Periodical |
| Magazine / Source | Geologické výzkumy na Moravě a ve Slezsku, |
| MU Faculty or unit | |
| Citation | |
| web | http://journals.muni.cz/gvms/ |
| Doi | http://dx.doi.org/10.5817/GVMS2019-1-2-116 |
| Keywords | Lower Badenian; Carpathian Foredeep; landslides; Foraminifera; Bryozoans; Molluscs; Palynology |
| Description | In 2018 an excavation 20 × 20 m large and up to 5 m high calcareous clays of the Langhian age were found. Rich and diversified assemblages of foraminifers with species Orbulina suturalis Brön. and Martinotiella karreri (Cush.) indicate the early Badenian (in sense of the Central Paratethys regional stratigraphy) age of sediments, zone M5b sensu Berggrenet al. (1995). Variously deformed lenses and layers of fine-grained sand with several blocks of white calcareous silts and with two layers of clayey sediments with pebbles were found.The identified outcrop is part of a large landslide situated at the western margin of the Carpathian Foredeep. Samples determining the age of the landslide movements were taken for study of palynomorphs from Badenian clays and also from slope sediments with pebbles. Very rich and diversified fauna was described first of all from fine-grained sand that creates layers in calcareous clays. The assemblage comprised tests of foraminifers, spines of the echinoids, fragments of sponge spicules, rich fragments of molluscs and zoarias of bryozoas, worms – Ditrupa cornea (Linnaeus, 1758), Serpula sp., ?Serpulidae indet., fragments ofbrachiopods, arthropods, coral, ostracods, teleostei etc.The findings from the Badenian and Quaternary periods were mixed by slope movements. The development of these sediments was terminated in the Middle Pleistocene by sliding a large partial landslide. |