Results 71 to 80 of about 15,112 (291)

BRACHIOPODS FROM THE TYPE-SECTION OF THE BITHYNIAN SUBSTAGE (ANISIAN, MIDDLE TRIASSIC, NORTHWESTERN TURKEY)

open access: yesRivista Italiana di Paleontologia e Stratigrafia, 2016
The Bithynian substage of the Anisian stage (Middle Triassic) was established by Assereto in the Gebze area (Kocaeli peninsula, northwestern Turkey), within the middle member of Nodular Limestone formation, now included in the Tepeköy Formation. The rich
MAURIZIO GAETANI
doaj   +1 more source

Vorwort/Preface [PDF]

open access: yesEiszeitalter und Gegenwart, 2007
In this volume, the Quaternary Subcommission of the German Stratigraphic Commission presents a description of the major stratotypes and stratigraphical terms for the Quaternary in Germany, focusing on climatostratigraphical terms that relate to cold and ...
T. Litt
doaj   +1 more source

Uppermost Jurassic to Lower Cretaceous benthic foraminiferal biostratigraphy at ODP Site 765 on the Argo Abyssal Plain. [PDF]

open access: yes, 1992
Benthic foraminifers were studied in 99 samples collected from the lower 200 m of Hole 765C. The studied section ranges from the Tithonian to Aptian, and benthic foraminifers can be subdivided into five assemblages on the basis of faunal diversity and ...
Geroch, S.   +2 more
core  

Stratigraphy and age of the Cappadocia ignimbrites, Turkey: reconciling field constraints with paleontologic, radiochronologic, geochemical and paleomagnetic data [PDF]

open access: yes, 2005
The stratigraphy and age of the Neogene Cappadocia ignimbrites (Central Turkey) have been inferred in previous studies from fieldwork and K–Ar age determinations.
Bourdier, Jean-Louis   +5 more
core   +3 more sources

The regional evolution of a dryland fluvio‐aeolian and lacustrine succession in response to allocyclic forcing: insights from the Early Permian Cutler Group, Utah, USA

open access: yesSedimentology, Volume 73, Issue 2, Page 297-354, February 2026.
ABSTRACT Preserved allocyclic signatures in the rock record often reflect basin‐scale climatic variability and serve as key proxies for correlating ancient dryland successions. The notion of climate cyclicity, however, remains largely untested on regionally constrained, outcrop‐calibrated studies.
Oliver Button   +4 more
wiley   +1 more source

Élaboration d’un cadre chronostratigraphique pour le Pléistocène de la région Centre-Val de Loire (France) : présentation du projet de recherche et des premiers résultats

open access: yesRevue Archéologique du Centre de la France, 2014
Over the past years, the preventive archaeological investigations carried out by the French institute Inrap in the Centre-Val de Loire Region of France, have revealed Pleistocene sequences of silt in the Beauce area and of alluvia southward in the Loire ...
Céline Coussot, Morgane Liard
doaj  

The Hell Creek Formation, Montana: A Stratigraphic Review and Revision Based on a Sequence Stratigraphic Approach

open access: yesGeosciences, 2020
The Upper Maastrichtian fluvial Hell Creek Formation of the Fort Peck Lake area, Montana (and regional equivalents) is notable for its vertebrate fossils and for the K-Pg mass extinction at or near its upper contact.
Denver Fowler
doaj   +1 more source

Are regional stages necessary? [PDF]

open access: yes, 2005
The bipartition of the Carboniferous System adopted by the International Commission of Stratigraphy for the world stratigraphic chart is impractical in Gondwana.
Gonzalez, Carlos Roberto
core  

Fluvial deposits of the Ahr river (western Germany) reveal recurring high‐magnitude flood events over the last 1,500 years

open access: yesEarth Surface Processes and Landforms, Volume 51, Issue 1, January 2026.
Floods are one of the most critical environmental threats in Central Europe. We show the importance of geomorphological records from Ahr flood deposits for reconstructing past high‐magnitude flood events. Our chemolithostratigraphical analysis shows that centennial to millennial scale high‐energy flooding is not the exception but the rule in the Ahr ...
Christoph Zielhofer   +9 more
wiley   +1 more source

Découpage séquentiel et nouvelles données archéologiques des Limons des plateaux au nord de Tours (Indre-et-Loire)

open access: yesRevue Archéologique du Centre de la France, 2018
The “Limons des plateaux” formation, in the north of Tours, is a set of loessic deposits from the middle-Weichselian period. Recent excavations of preventive archaeology provided lithic artefacts from Mousterian period on 4 sites and made absolute ...
Philippe Gardère, Nasser Djemmali
doaj  

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