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C-ISOTOPE STRATIGRAPHY, A CALIBRATION TOOL BETWEEN AMMONITE - AND MAGNETOSTRATIGRAPHY: THE VALANGINIAN-HAUTERIVIAN TRANSITION

• Geologica Carpathica
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• Volume 50 No.1 / February 1999

Published: Feb 1999

Pages: 91 - 96

Authors: SUSANNE HENNIG, HELMUT WEISSERT, LUC BULOT

Abstract: Detailed carbon isotope stratigraphy was calibrated with standard ammonite stratigraphy for two Valanginian to Lower Hauterivian sections in Southern France, La Charce in the Vocontian basin and Pont de Carajuan on the Provence platform margin. The excellent correspondence of ammonite zonation and carbon isotope composition between the two sections allowed us to create a composite C-isotope curve. The Valanginian carbon isotope excursion starts with a positive δ¹³C-shift of ca. +1.3 ‰ in the upper Campylotoxus Zone. δ¹³C-values culminate in the Verrucosum Zone and decrease from the upper Verrucosum Zone to the Hauterivian Loryi Zone where they reach pre-excursion values again. Correlation of the Valanginian to Lower Hauterivian standard ammonite zonation of Southern France (N. Tethys) with other bio- and chronostratigraphies, such as the South Alpine nannofossil- and magnetostratigraphy (S. Tethys) is significantly improved by the link via carbon isotope stratigraphy.

Keywords: Lower Cretaceous, Tethys, Southern France, Valanginian-Hauterivian transition, carbon isotope excursion, ammonite stratigraphy

Volume 50 no. 1 / February 1999

• EVGENIJ J. BARABOSHKIN

  BERRIASIAN-VALANGINIAN (EARLY CRETACEOUS) SEAWAYS OF THE RUSSIAN PLATFORM BASIN AND THE PROBLEM OF BOREAL/TETHYAN CORRELATION

• MARTA BAK

  CRETACEOUS RADIOLARIAN ZONATION IN THE POLISH PART OF THE PIENINY KLIPPEN BELT (WESTERN CARPATHIANS)

• MIROSLAV BUBIK, MARTA BAK, LILIAN SVABENICKA

  BIOSTRATIGRAPHY OF THE MAASTRICHTIAN TO PALEOCENE DISTAL FLYSCH SEDIMENTS OF THE RACA UNIT IN THE UZGRUN SECTION (MAGURA GROUP OF NAPPES, CZECH REPUBLIC)

• RUSLAN GABDULLIN, ANDREY GUZHIKOV, IVAN DUNDIN

  ORIGIN OF RHYTHMICALLY BEDDED CENOMANIAN CARBONATE ROCKS OF THE BAKHCHISARAI REGION (SW CRIMEA)

• M. ADAM GASINSKI, MALGORZATA JUGOWIEC, ANDRZEJ SLACZKA

  LATE CRETACEOUS FORAMINIFERIDS AND CALCAREOUS NANNOPLANKTON FROM THE WEGLÓWKA MARLS (SUBSILESIAN UNIT, OUTER CARPATHIANS, POLAND)

• ELZBIETA GEDL

  LOWER CRETACEOUS PALYNOMORPHS FROM THE SKOLE NAPPE (OUTER CARPATHIANS, POLAND)

• SUSANNE HENNIG, HELMUT WEISSERT, LUC BULOT

  C-ISOTOPE STRATIGRAPHY, A CALIBRATION TOOL BETWEEN AMMONITE - AND MAGNETOSTRATIGRAPHY: THE VALANGINIAN-HAUTERIVIAN TRANSITION