Record details

Title
    Environmental record in detrital cave sediments in the Botovskaya and Dolganskaya Jama caves (Russian Federation)
Author
    Chadima, Martin
    Hercman, H.
    Kadlec, Jaroslav
    Lisá, Lenka
    Oberhansli, H.
    Osincev, A.
Conference
    European Geosciences Union General Assembly (02.04.2006-07.04.2006 : Vienna, Rakousko)
Language
    anglicky
Publication type
    abstrakt
Source title - monograph
    Geophysical Research Abstracts
Pages
    Roč. 8, - (2006), A10273-A10273
Notes
    Projekt 03-51-4152 Speleothems and other cave sediments from Siberia: an archive from the boreal climate zone with the potential for climate reconstruction on an annual to decadal basis (SPELEOARCH)
    Překlad názvu: Environmentální záznam v detritických jeskynních sedimentech jeskynní Botovskaja a Dolganskaja Jama (Ruská federace)
    Rozsah: 1 s.
    Výzkumný záměr: CEZ:AV0Z30130516
Subject category
    cave
    magnetic properties
    micromorphology
    provenance
    sediments
Keyword
    Botovskaya
    Cave
    Caves
    Detrital
    Dolganskaya
    Environmental
    Federation
    Jama
    Record
    Russian
    Sediments
Abstract (in english)
   The Botovskaya Cave which is developed in the Angarsko-Lensky Plateau ca 700 km N of Irkutsk in Ordovician limestones, is an example of a horizontal two-dimensional maze with a total length of explored passages exceeding 60 km. The cave system is located 310 m above the Lena River level. The detrital cave fills differ both in mineral magnetic and mineralogical parameters. Two depositional events could be observed. The older sediments consist of sands showing low magnetic susceptibility (MS) and low radioactivity values and are derived from weathered sandy Cambrian bedrocks. The sediments were transported by horizontally running water entering the cave system when the relief was peneplained, probably during the Late Tertiary. The overlying cave deposits, predominantly clays and sandy clays, reveal higher MS and radioactivity values and were transported vertically to the cave passages during rain or meltwater events.
Contributor
    AV ČR Brno, Geologický ústav
Contributor code
    AV ČR, GLÚ
Source format
    U
Import date
    8. 8. 2012