Record details

    Geologie, geomorfologie a přírodní poměry paleolitické lokality Tmaň
Statement of responsibility
    Václav Cílek
Other titles
    Geology, geomorphology and natural conditions of the Palaeolithic site Tmaň in Koněprusy Area
    Zlatý kůň (Variant.)
    Cílek, Václav, jr.
Source title - serial
    Knihovna České speleologické společnosti
    Roč. 36
    s. 81-87
    1 obr., 17 bibl.
    Anglické resumé
    Zkr. název ser.: Knih. Čes. speleol. Společ.
Subject group
    kvartér Českého masivu
    pražská pánev
    relikty sladkovodního terciéru Českého masivu
Geographical name
    Tmaň (Beroun)
Abstract (in english)
   The archaeological was carried by I. Sýkorová and V. Matoušek in Tmaňská ostrožná site during 1994-96 season on the place where new cement plant was several times projected. Several hundreds of boreholes as part of the building project were drilled in this small area so the detailed description of the Quaternary sediments can be given. The underlying rocks are formed by Silurian shales, calcareous shales, diabase intercalations and thin bedded limestones. The black Liteň shales are changed to the light grey secondary quartzites near the church of St. george. These quartzites often containing hematitised graptolites were found as scattered clasts on the nearby fields and even in Koněprusy Caves, but this outcrop is the only known "in situ". The secondary quartzites testimony the larger extent of the Silurian shales on Očkov fault zone over a "klippen" elevation of Koněprusy Devonian reef.
   The rock surface are now burried by 3-10 m of younger slope sediments, solifluction tongues and fluviatile relics of the Quaternary or even Mio-Pliocene age. The slope sediments, usualy rock scree clasts with brown-yellow clayey, loess-derived matrix of the total thickness 10-30 m are characteristic feature of the whole Central Bohemian hilly region. The old river channel of probable Early Quaternary age filled with humic soil was found under 10 m of the overlying sediments. This find together with other observations from Brdy Mts. and elsewhere suggest the massive solifluction and slope creep of masses of the unconsolidated sedimnets before the Middle Palaeolithic Period. The elevated position of Middle palaeolithic site probably reflects sevral local factors - good outlook, dry and thus warm place and the absence of the cold slope wind above valley inversions.
   The microclimatic conditions of a place are dependent on the water amount in soil cover because the energy consuming evaporation cools the site
    Česká geologická služba
Contributor code
    ČGS (UNM)
Source format
Entered date
    24. 10. 2007
Import date
    8. 8. 2012