Results 11 to 20 of about 86 (73)

Identification of deep subaqueous co-seismic scarps through specific coeval sedimentation in Lesser Antilles: implication for seismic hazard [PDF]

open access: yesNatural Hazards and Earth System Sciences, 2012
During the GWADASEIS cruise (Lesser Antilles volcanic arc, February–March 2009) a very high resolution (VHR) seismic-reflection survey was performed in order to constrain Late Quaternary to Present faulting.
C. Beck   +16 more
doaj   +1 more source

The Bottom Current Sediments (Contourites) in the Upper Cretaceus Deep-Water Deposits in the Northeeastern Part of Žumberak (Croatia)

open access: yesGeologia Croatica, 2010
The Upper Cretaceous deep marine deposits in NE parts of Žumberakcontain sediments deposited by bottom currents - muddy, sandy andsandy-gravelly contourites. The complete (negative-positive) sequencesand incomplete (negative-positive) sequences have been
Ervin Mrinjek
doaj   +1 more source

Palaeobiology and taphonomy of the rangeomorph Culmofrons plumosa

open access: yesPalaeontology, Volume 66, Issue 4, July/August 2023., 2023
Abstract The deep marine Ediacaran fossil record of Avalonia is dominated by the Rangeomorpha, a clade characterized by up to four orders of fractal‐like branching. Despite their abundance, morphological diversity and the recent increase in Ediacaran studies, aspects of their palaeobiology, palaeoecology and phylogenetic position in the tree of life ...
Giovanni Pasinetti, Duncan McIlroy
wiley   +1 more source

Tectonic Evolution of a Sedimented Oceanic Transform Fault: The Owen Transform Fault, Indian Ocean

open access: yesTectonics, Volume 42, Issue 5, May 2023., 2023
Abstract The Owen transform fault (OTF) connecting the Sheba and the Carlsberg spreading ridges in the Indian Ocean currently forms the active plate boundary between India and Somalia plates. This 330‐km‐long transform fault is by far the longest transform fault along the India‐Somalia plate boundary and its valley is buried under the thick distal ...
Alexandre Janin   +9 more
wiley   +1 more source

Environmental Conditions in a Carpathian Deep Sea Basin During the Period Preceding Oceanic Anoxic Event 2 - A Case Study from the Skole Nappe

open access: yesGeologica Carpathica, 2015
Hemipelagic green clayey shales and thin muddy turbidites accumulated in a deep sea environment below the CCD in the Skole Basin, a part of the Outer Carpathian realm, during the Middle Cenomanian.
Bąk Krzysztof   +3 more
doaj   +1 more source

THE BRECCE DELLA RENGA FORMATION: AGE AND SEDIMENTOLOGY OF A SYN-TECTONIC CLASTIC UNIT IN THE UPPER MIOCENE OF CENTRAL APENNINES. INSIGHTS FROM FIELD GEOLOGY

open access: yesRivista Italiana di Paleontologia e Stratigrafia, 2014
In the NE Simbruini Mountains, the “Brecce della Renga Fm.” is a clastic unit documenting sedimentation controlled by late Miocene extensional tectonics.The unit has been subdivided into three lithofacies and six sublithofacies, based on the arenite ...
SIMONE FABBI, MARIA GRAZIA ROSSI
doaj   +1 more source

Echo character mapping and depositional processes on the western Svalbard continental margin

open access: yesPolar Research
An echo character mapping study of the western Svalbard continental margin, based on ca. 3980 km of archived sub-bottom profile data, is presented. Four distinct echo character types are recognized.
Niamh I. Doherty, John A. Howe
doaj   +1 more source

Facies analysis provides new insights into event bed deposition in a hadal trench environment

open access: yesSedimentology, Volume 73, Issue 2, Page 441-477, February 2026.
ABSTRACT Hadal trenches preserve exceptional sedimentary archives of past geological events, yet their depositional processes remain poorly constrained. The Japan Trench captures complex earthquake‐triggered event beds that record repeated sediment‐gravity flows that deliver terrigenous and biogenic material into the trench, informing palaeoseismic ...
Mishelle Muthre   +6 more
wiley   +1 more source

Upper Cretaceous Yüksekova Complex (Type Area), Easternmost Türkiye: Formation and Emplacement of a Proximal Back‐Arc Segment of a Tethyan Intra‐Oceanic Arc

open access: yesIsland Arc, Volume 35, Issue 1, January/December 2026.
ABSTRACT We provide the first comprehensive information and interpretation of the type area of the regionally important Upper Cretaceous oceanic arc, known as the Yüksekova Complex. Here, the arc's development is investigated using field observations, igneous and sedimentary petrography, micropaleontology of planktic foraminifera, x‐ray diffraction of ...
Alastair H. F. Robertson   +2 more
wiley   +1 more source

A Possible Tsunamigenic Near‐Trench Strike‐Slip Fault, Offshore North Ecuador–South Colombia

open access: yesJournal of Geophysical Research: Solid Earth, Volume 130, Issue 12, December 2025.
Abstract Seismic reflection and bathymetry collected along the Ecuador–Colombia obliquely convergent margin allow the first characterization of the NNE‐trending, near‐trench strike‐slip Ancon Fault in the possible source region of the 1906‐Mw8.6–8.8 and 1979‐Mw8.2 earthquakes, which produced devastating tsunamis.
J.‐Y. Collot   +8 more
wiley   +1 more source

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