Results 21 to 30 of about 3,560,008 (359)

Implications of an integrated late Ediacaran to early Cambrian stratigraphy of the Siberian Platform, Russia

open access: yesGSA Bulletin, 2023
The transition from the terminal Ediacaran to early Cambrian (ca. 550−530 Ma) witnessed both the decline of Ediacaran-type soft-bodied and skeletal biota and the rapid diversification of Cambrian-type skeletal biota, which dominate the Terreneuvian (ca ...
F. Bowyer   +7 more
semanticscholar   +1 more source

PETROGRAPHY AND THERMODYNAMIC REACTIONS OF SOME OF THE ROCKS IN THE BANKET SERIES OF THE TARKWAIAN SUPERGROUP [PDF]

open access: yesGeological Behavior, 2023
The Banket Series, which is a paleoplacer deposit, is the third formation in the stratigraphy of Tarkwaian Supergroup. This project seeks to study petrographically; the lithologies in the banket series to confirm the rocks identity as already known or ...
Matthew Coffie Wilson   +1 more
doaj   +1 more source

An interdisciplinary approach to Iron Age Mediterranean chronology through combined archaeological and 14C-radiometric evidence from Sidon, Lebanon.

open access: yesPLoS ONE, 2023
The construction of the Iron Age Mediterranean chronology began in the Levant based on historical evidence and has been additionally supported in recent decades by means of radiocarbon analysis, although with variable precision and ratification.
Claude Doumet-Serhal   +4 more
doaj   +2 more sources

Sulphur isotope stratigraphy of drill cuttings and stratigraphic correlation of Permian-Triassic evaporites

open access: yesFrontiers in Earth Science, 2023
The stratigraphy of the European late Permian-Triassic commonly lacks chronostratigraphic constraint due to the scarcity of diagnostic fossils for biostratigraphy.
Jack Salisbury   +2 more
doaj   +1 more source

FACIAL UNCONFORMITIES AND FACIAL SERIES IN THE SEQUENCE STRATIGRAPHY

open access: hybridOil and Gas Studies, 2019
The sequence stratigraphy is currently, on the one hand, a leading approach in the study of the internal structure of sedimentary basins, on the other hand, a creatively developing discipline, the conceptual basis of which is being developed. The concept of a «system tract» is one of the most questionable concepts of sequence stratigraphy. According to
М.В. Лебедев
openalex   +4 more sources

Integrated stratigraphy and paleoenvironmental reconstruction of the Miocene series of the Châteauredon Dome, S.E. France [PDF]

open access: bronzeEclogae Geologicae Helvetiae, 2006
This study presents the results of a palynological analysis (dinocysts, spores and pollen) that are discussed with those obtained from stable isotopes geochemistry (δ13C and δ18O) on Miocene coastal and continental deposits in the southern area of the Digne Valensole Basin.
Anne Bialkowski   +3 more
openalex   +4 more sources

New data on the Dogger - Cenomanian stratigraphy of Tripolitza series in Central Crete

open access: goldBulletin of the Geological Society of Greece, 2018
Tripolitza series represents the eastern part of the Gavrovo - Tripolitza platform. It outcrops in central and southeastern Peloponnesus, Crete and the Aegean islands. Its stratigraphie column starts with a volcano-sedimentary, clastic sequences (the Tyros beds), of Late Paleozoic to Late Triassic age, followed by a carbonate series of Late Triassic to
Α. ΖΑΜΠΕΤΑΚΗ - ΛΕΚΚΑ   +1 more
openalex   +4 more sources

The stratigraphy and origin of the portaskaig boulder bed series (Dalradian) [PDF]

open access: yesGeological Journal, 1965
AbstractThe late Pre‐Cambrian Portaskaig Boulder Bed Series shows a very uniform sequence for some 600 km along the Caledonian strike, from Connemara on the west coast of Ireland to Aberdeenshire in Scotland. The Series, which is divided into four groups of beds, comprises numerous individual boulder beds separated by stratified sediments.
C. Kilburn   +2 more
openaire   +2 more sources

Global Series and Stages for the Ordovician System: A Progress Report

open access: yesGeologica Acta, 2005
There is no global standard set of chronostratigraphic/geochronologic subdivisions for the Ordovician System/Period. British series/epochs are often used as de facto nomenclature on stratigraphic correlation charts and geologic time scales. However, they
S. FINNEY
doaj   +1 more source

Geotechnical Characteristic Assessments of Floodplain Soils Using SCPTU Data in Nanjing, China

open access: yesAdvances in Civil Engineering, 2022
In order to improve the understanding of such floodplain sediments and determining the validity of the tests, an extensive series of multifunctional seismic piezocone tests with pore pressure dissipation phase have been performed and supplemented with ...
Mingfei Zhang, Liyuan Tong, Qiang Wang
doaj   +1 more source

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