Results 81 to 90 of about 16,460 (227)

Lateral variations in the signature of earthquake‐generated deposits in Lake Iznik, NW Turkey

open access: yesThe Depositional Record
Using lake‐sediment cores to document past seismicity requires a comprehensive understanding of possible lateral variations in depositional processes. This study aims to reveal the lateral variations in earthquake‐induced event deposits throughout Lake ...
R. Gastineau   +11 more
doaj   +1 more source

The Mansurovo Formation of the West Magnitogorsk Zone in the Southern Urals: Stratigraphy, Composition and Sedimentary Environments

open access: yesGeoresursy
Research subject. Mansurovo formation (the (?)Silurian–Lower Devonian) in the Western Magnitogorsk zone of the Southern Urals, outcropped in the same-name village vicinity.   Aim.
A. M. Fazliakhmetov   +2 more
doaj   +1 more source

Northeastern Greenland Paleomagnetic Records Indicate the Influence of Geomagnetic Flux Lobe Intensity on Virtual Geomagnetic Pole Migration During the Holocene

open access: yesJournal of Geophysical Research: Solid Earth, Volume 131, Issue 4, April 2026.
Abstract Paleomagnetic and rock magnetic analyses were conducted on sediment cores from the northeastern Greenland Shelf and Young Sound along the western edge of Fram Strait. The paleomagnetic signal in all three sediment cores is characterized by a strong and stable single component magnetization carried by low coercivity ferrimagnetic single domain ...
Juliette Girard   +7 more
wiley   +1 more source

Application of micro‐CT to resolve textural properties and assess primary sedimentary structures of deep‐marine sandstones

open access: yesThe Depositional Record
Over the past decade, there has been growing interest in the sedimentological community to use micro X‐ray computed tomography to analyse microfacies in sediment cores.
P. H. Cornard   +4 more
doaj   +1 more source

Provenance and geochemistry of exotic clasts in conglomerates of the Oligocene Torehina Formation, Coromandel Peninsula, New Zealand [PDF]

open access: yes, 2003
Non-marine pebble to cobble conglomerates of the lower Torehina Formation (Oligocene) crop out along western Coromandel Peninsula and overlie, with strong angular discordance, continental-margin metasedimentary rocks (Manaia Hill Group) of Mesozoic (Late
Baker C. K.   +19 more
core   +2 more sources

Tracking sea bed topography in the Jurassic. The Lotena Group in the Sierra de la Vaca Muerta (Neuquén Basin, Argentina) [PDF]

open access: yes, 2005
The Lotena Group is a clastic to evaporitic unit up to 650 m thick that accumulated during the Middle to Late Jurassic in the Neuquén Basin, western Argentina.
Zavala, Carlos Alberto
core   +1 more source

The origin of fine scale acoustic stratigraphy in deep-sea carbonates [PDF]

open access: yes, 1979
In this paper we investigate the origin and geologic significance of the closely spaced high-frequency subbottom acoustic reflectors characteristic of pelagic carbonates.
Mayer, Larry A.
core   +2 more sources

High-resolution palynological analysis in Lake Sapanca as a tool to detect recent earthquakes on the North Anatolian Fault [PDF]

open access: yes, 2009
High-resolution palynological analysis of a 38-cm-long core collected from Lake Sapanca, northwest Turkey, reveals large earthquakes that occurred during the second half of the 20th century along the North Anatolian Fault Zone. Four events have disturbed
Boyraz, S, Gürbüz, A, Leroy, SAG
core   +1 more source

FACIES AND ARCHITECTURE OF A SAND-RICH TURBIDITE SYSTEM IN AN EVOLVING COLLISIONAL-TRENCH BASIN: A CASE HISTORY FROM THE UPPER CRETACEOUS-PALAEOCENE GOTTERO SYSTEM (NW APENNINES)

open access: yesRivista Italiana di Paleontologia e Stratigrafia, 2019
This study documents the main depositional elements of a dynamically-controlled sand-rich deep-water turbidite system (Upper Cretaceous–Palaeocene Gottero system, north-west Italy).
MARCO FONNESU, FABRIZIO FELLETTI
doaj   +1 more source

Continental Growth and Recycling in Convergent Orogens with Large Turbidite Fans on Oceanic Crust

open access: yesGeosciences, 2013
Convergent plate margins where large turbidite fans with slivers of oceanic basement are accreted to continents represent important sites of continental crustal growth and recycling.
Ben D. Goscombe, David A. Foster
doaj   +1 more source

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