Results 71 to 80 of about 7,074 (218)

Early–Late Carboniferous Tectonic Evolution of the Northern North China Craton (NE China): Constraints From Zircon Ages, Geochemistry, and Crustal Thickness Modeling

open access: yesGeochemistry, Geophysics, Geosystems, Volume 27, Issue 8, August 2026.
Abstract The tectonic evolution of the northern margin of the North China Craton (NCC) remains controversial. In this study, we obtained zircon U–Pb ages, geochemical data, and Sr–Nd isotopic data for volcanic rocks, and detrital zircon ages for sedimentary rocks from the Yufutun, Tongqigou, and Benxi formations in central‐southern Jilin Province, NE ...
Yunfei Chang   +6 more
wiley   +1 more source

Wägital-Flysch et autres flyschs penniques en Suisse Centrale : stratigraphie, sédimentologie et comparaisons

open access: yes, 1985
Le Wägital-Flysch en Suisse Centrale, d'origine pennique. comporte des termes allant du Campanien (éventuellement du Santonien supérieur?) jusqu'à l'Eocène moyen.
Caron, Christian   +3 more
core  

Influence of Structural Features and Fracture Processes on Surface Roughness: A Case Study from the Krosno Sandstones of the Górka–Mucharz Quarry (Little Beskids, Southern Poland)

open access: yesStudia Geotechnica et Mechanica, 2015
The paper presents the results of analysis of surface roughness parameters in the Krosno Sandstones of Mucharz, southern Poland. It was aimed at determining whether these parameters are influenced by structural features (mainly the laminar distribution ...
Pieczara Łukasz
doaj   +1 more source

Influence of anisotropy on the mechanical properties of Baixo Alentejo flysch rocks (Portugal) [PDF]

open access: yes, 2015
This paper aims to contribute to the knowledge of the mechanical properties of the shales and greywackes which constitute the flysch-type deposits of the Baixo Alentejo Flysch Group, in the south of Portugal.
Duarte, Isabel M.R.   +3 more
core  

Crevice-type caves as indicators of slope failures: a review paying a special attention to the flysch Carpathians of Czechia, Poland, and Slovakia

open access: yesActa Universitatis Carolinae Geographica, 2013
The occurrence and evolution of crevice-type caves is one of the most spectacular phenomena in the progression of slope failures in distinct types of rocks.
Jan Lenart, Tomáš Pánek
doaj   +1 more source

Cretaceous flysch deposits of the Northern Apennines, Italy: age of inception of orogenesis-controlled sedimentation

open access: yes, 1992
Calcareous nannofossils have proved to be very effective in determining the age of Cretaceous flysch sequences of the Northern Apennines. Here, we focus on the beginning of flysch sedimentation, which replaced previous pelagic deposition during the Late ...
MARRONI, MICHELE   +3 more
core  

Etude du Kemalpaşa Dağı (Province d'İzmir, Turquie)

open access: yesBulletin of the Mineral Research and Exploration, 1963
Le Kemalpaşa Dağı est un massif calcaire de 20 km de diametre s'elevant jusqu'a 1500 m entre İzmir et les contreforts du massif cristallin de Menderes. La structure est compliquee; une orientation SW-NE predomine cependant. Des failles WE le tronquent au
Joel VERDIER
doaj  

Litho- and biostratigraphy of the Firza Flysch, Ophiolite Mirdita nappe, Albania

open access: yes, 1996
The lithostratigraphical features and recent discoveries of calcareous nannofossils from the Firza Flysch, Mirdita region (northern Albania) are reported.
PANDOLFI, LUCA   +5 more
core  

Rockwall retreat on badlands in Slovene Istria

open access: yesGeologija, 2008
Steep bare rocky slopes that are badlands at the same time, are a morphogenetic particularity of the flyschpart of the Istrian Peninsula. On them, microrelief forms are of a short life cycle, since erosion processes are fast. On the basis of measurements
Matjaž Mikoš, Matija Zorn
doaj  

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