Mid-Triassic integrated U-Pb geochronology and ammonoid biochronology from the Balaton Highland (Hungary)

J. Pálfy, Randall R. Parrish, Karine David, Attila Vörös

Research output: Contribution to journalArticle

45 Citations (Scopus)

Abstract

Ladinian (Middle Triassic) strata of the Balaton Highland (west-central Hungary) comprise interbedded marine carbonate and volcaniclastic rocks. The sediments are noted for their rich ammonoid faunas, which allow detailed biostratigraphic subdivision and correlation. For the first time, isotopic dating of the tuff layers was carried out to calibrate the age of ammonoid zones and subzones. Four successive horizons were dated from the Felsöörs section, a candidate stratotype for the base of the Ladinian stage. Within the Reitzi Zone, which is interpreted here as the basal Ladinian unit, the following biostratigraphically tightly constrained U-Pb zircon ages were obtained: Felsoeoersensis Subzone 241.1 ± 0.5 Ma; Liepoldti Subzone 241.2 ± 0.4 Ma; Reitzi Subzone 240.5 ± 0.5 and 240.4 ± 0.4 Ma. A redeposited tuff from the Gredleri Zone at Litér yielded an additional U-Pb age of 238.7 ± 0.6 Ma. The new isotopic ages are in agreement with published U-Pb dates from the Southern Alps. Together, they allow estimation of the start of the Ladinian at 241.5 Ma and of the end of the stage at 237 Ma. A duration of

Original languageEnglish
Pages (from-to)271-284
Number of pages14
JournalJournal of the Geological Society
Volume160
Issue number2
DOIs
Publication statusPublished - Mar 2003

Fingerprint

biochronology
Ladinian
geochronology
Triassic
tuff
stratotype
zircon
fauna
carbonate
rock
sediment

Keywords

  • Biochronology
  • Middle Triassic
  • Time scale
  • U-Pb geochronology

ASJC Scopus subject areas

  • Earth and Planetary Sciences (miscellaneous)

Cite this

Mid-Triassic integrated U-Pb geochronology and ammonoid biochronology from the Balaton Highland (Hungary). / Pálfy, J.; Parrish, Randall R.; David, Karine; Vörös, Attila.

In: Journal of the Geological Society, Vol. 160, No. 2, 03.2003, p. 271-284.

Research output: Contribution to journalArticle

Pálfy, J. ; Parrish, Randall R. ; David, Karine ; Vörös, Attila. / Mid-Triassic integrated U-Pb geochronology and ammonoid biochronology from the Balaton Highland (Hungary). In: Journal of the Geological Society. 2003 ; Vol. 160, No. 2. pp. 271-284.
@article{63cc56ccb8304fa2a23a588cbfb319a0,
title = "Mid-Triassic integrated U-Pb geochronology and ammonoid biochronology from the Balaton Highland (Hungary)",
abstract = "Ladinian (Middle Triassic) strata of the Balaton Highland (west-central Hungary) comprise interbedded marine carbonate and volcaniclastic rocks. The sediments are noted for their rich ammonoid faunas, which allow detailed biostratigraphic subdivision and correlation. For the first time, isotopic dating of the tuff layers was carried out to calibrate the age of ammonoid zones and subzones. Four successive horizons were dated from the Fels{\"o}{\"o}rs section, a candidate stratotype for the base of the Ladinian stage. Within the Reitzi Zone, which is interpreted here as the basal Ladinian unit, the following biostratigraphically tightly constrained U-Pb zircon ages were obtained: Felsoeoersensis Subzone 241.1 ± 0.5 Ma; Liepoldti Subzone 241.2 ± 0.4 Ma; Reitzi Subzone 240.5 ± 0.5 and 240.4 ± 0.4 Ma. A redeposited tuff from the Gredleri Zone at Lit{\'e}r yielded an additional U-Pb age of 238.7 ± 0.6 Ma. The new isotopic ages are in agreement with published U-Pb dates from the Southern Alps. Together, they allow estimation of the start of the Ladinian at 241.5 Ma and of the end of the stage at 237 Ma. A duration of",
keywords = "Biochronology, Middle Triassic, Time scale, U-Pb geochronology",
author = "J. P{\'a}lfy and Parrish, {Randall R.} and Karine David and Attila V{\"o}r{\"o}s",
year = "2003",
month = "3",
doi = "10.1144/0016-764902-029",
language = "English",
volume = "160",
pages = "271--284",
journal = "Journal of the Geological Society",
issn = "0016-7649",
publisher = "Geological Society of London",
number = "2",

}

TY - JOUR

T1 - Mid-Triassic integrated U-Pb geochronology and ammonoid biochronology from the Balaton Highland (Hungary)

AU - Pálfy, J.

AU - Parrish, Randall R.

AU - David, Karine

AU - Vörös, Attila

PY - 2003/3

Y1 - 2003/3

N2 - Ladinian (Middle Triassic) strata of the Balaton Highland (west-central Hungary) comprise interbedded marine carbonate and volcaniclastic rocks. The sediments are noted for their rich ammonoid faunas, which allow detailed biostratigraphic subdivision and correlation. For the first time, isotopic dating of the tuff layers was carried out to calibrate the age of ammonoid zones and subzones. Four successive horizons were dated from the Felsöörs section, a candidate stratotype for the base of the Ladinian stage. Within the Reitzi Zone, which is interpreted here as the basal Ladinian unit, the following biostratigraphically tightly constrained U-Pb zircon ages were obtained: Felsoeoersensis Subzone 241.1 ± 0.5 Ma; Liepoldti Subzone 241.2 ± 0.4 Ma; Reitzi Subzone 240.5 ± 0.5 and 240.4 ± 0.4 Ma. A redeposited tuff from the Gredleri Zone at Litér yielded an additional U-Pb age of 238.7 ± 0.6 Ma. The new isotopic ages are in agreement with published U-Pb dates from the Southern Alps. Together, they allow estimation of the start of the Ladinian at 241.5 Ma and of the end of the stage at 237 Ma. A duration of

AB - Ladinian (Middle Triassic) strata of the Balaton Highland (west-central Hungary) comprise interbedded marine carbonate and volcaniclastic rocks. The sediments are noted for their rich ammonoid faunas, which allow detailed biostratigraphic subdivision and correlation. For the first time, isotopic dating of the tuff layers was carried out to calibrate the age of ammonoid zones and subzones. Four successive horizons were dated from the Felsöörs section, a candidate stratotype for the base of the Ladinian stage. Within the Reitzi Zone, which is interpreted here as the basal Ladinian unit, the following biostratigraphically tightly constrained U-Pb zircon ages were obtained: Felsoeoersensis Subzone 241.1 ± 0.5 Ma; Liepoldti Subzone 241.2 ± 0.4 Ma; Reitzi Subzone 240.5 ± 0.5 and 240.4 ± 0.4 Ma. A redeposited tuff from the Gredleri Zone at Litér yielded an additional U-Pb age of 238.7 ± 0.6 Ma. The new isotopic ages are in agreement with published U-Pb dates from the Southern Alps. Together, they allow estimation of the start of the Ladinian at 241.5 Ma and of the end of the stage at 237 Ma. A duration of

KW - Biochronology

KW - Middle Triassic

KW - Time scale

KW - U-Pb geochronology

UR - http://www.scopus.com/inward/record.url?scp=0037357798&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0037357798&partnerID=8YFLogxK

U2 - 10.1144/0016-764902-029

DO - 10.1144/0016-764902-029

M3 - Article

AN - SCOPUS:0037357798

VL - 160

SP - 271

EP - 284

JO - Journal of the Geological Society

JF - Journal of the Geological Society

SN - 0016-7649

IS - 2

ER -