BACTERIAL INFLUENCE ON SPELEOTHEM OXYGEN ISOTOPE COMPOSITION: AN EXAMPLE BASED ON CAVE PISOIDS FROM PERLOVA CAVE (SLOVAKIA)
Published: Jun 2003
Pages: 199 - 204
Authors: MICHAL GRADZINSKI
Abstract: The origin of recently growing irregular cave pisoids in Perlova Cave (Velka Fatra Mts, Slovakia) seems to be due to the activity of hydrogen-oxidizing bacteria. Several samples of water and freshly deposited calcite from cave pisoids were analysed for stable oxygen isotope ratios. The obtained values were checked using the O’Neil equation. Almost all the calcite samples display values more positive than their calculated counterparts. This phenomenon is ascribed to a fractionation process mediated by bacteria. The light isotope of oxygen is preferentially taken up by the hydrogen-oxidizing bacteria. It causes the relative enrichment in the heavy isotope in the bacterias’ surroundings, which is recorded in the calcite precipitated around the bacterial cells.
Keywords: Velka Fatra Mts, stable oxygen isotopes, bacterial influence, speleothems
Download PDF document
Volume 54 no. 3 / June 2003
JIRI KALVODA, JAROMIR LEICHMANN, ONDREJ BABEK, ROSTISLAV MELICHAR
BRUNOVISTULIAN TERRANE (CENTRAL EUROPE) AND ISTANBUL ZONE (NW TURKEY): LATE PROTEROZOIC AND PALEOZOIC TECTONOSTRATIGRAPHIC DEVELOPMENT AND PALEOGEOGRAPHY
SOTIRIOS KOKKALAS, PARASKEVAS XYPOLIAS, IOANNIS K. KOUKOUVELAS, THEODOR DOUTSOS
RELATIONSHIPS BETWEEN FOLDING AND FRACTURING IN OROGENIC BELTS: EXAMPLES FROM THE RHENOHERCYNIAN ZONE (GERMANY) AND THE EXTERNAL HELLENIDES (GREECE)
MARIAN PUTIS, ALEXANDER B. KOTOV, IGOR PETRIK, SERGEI P. KORIKOVSKY, JAN MADARAS, EKATHERINA B. SALNIKOVA, SONYA Z. YAKOVLEVA, NATALYA G. BEREZHNAYA, YULIA V. PLOTKINA, VICTOR P. KOVACH, BRANISLAV LUPTAK, MICHAL MAJDAN
EARLY- vs. LATE OROGENIC GRANITOIDS RELATIONSHIPS IN THE VARISCAN BASEMENT OF THE WESTERN CARPATHIANS
MICHAL KROBICKI, ALFRED UCHMAN
TRACE FOSSIL CURVOLITHUS FROM THE MIDDLE JURASSIC CRINOIDAL LIMESTONES OF THE PIENINY KLIPPEN BELT (CARPATHIANS, POLAND)
ALFRED UCHMAN, RADEK MIKULAS, VACLAV HOUSA
THE TRACE FOSSIL CHONDRITES IN UPPERMOST JURASSIC–LOWER CRETACEOUS DEEP CAVITY FILLS FROM THE WESTERN CARPATHIANS (CZECH REPUBLIC)
FELICITASZ VELLEDITS, MARTON FORIAN-SZABO, ANIKO BERCZI-MAKK, OLGA PIROS, SANDOR JOZSA
STRATIGRAPHY AND ORIGIN OF THE KISFENNSIK NAPPE (BÜKK MOUNTAINS, NE HUNGARY). IS THE SILICA UNIT REALLY PRESENT IN THE BÜKK MOUNTAINS?
MICHAL GRADZINSKI
BACTERIAL INFLUENCE ON SPELEOTHEM OXYGEN ISOTOPE COMPOSITION: AN EXAMPLE BASED ON CAVE PISOIDS FROM PERLOVA CAVE (SLOVAKIA)