Results 61 to 70 of about 4,792 (217)

Llandovery microfossils and microfacies of the Hýskov section, Prague Basin [PDF]

Fossil Imprint, 2019
Abstract The lower Silurian strata of the Prague Basin, as well as in many other regions, are primarily represented by black shales, with limited to no record of benthic life. In this paper, we describe an exceptional late Aeronian volcanic-carbonate succession from the Hýskov locality near Beroun, which contains a diverse and well-preserved fossil ...
Tonarová, Petra, Vodrážková, Stanislava, Hints, Olle, Männik, Peep, Kubajko, Michal, Frýda, Jiří   +5 more
openaire   +1 more source

Multi‐proxy sequence stratigraphy of a mixed carbonate–siliciclastic shelf across the Jurassic–Cretaceous transition

The Depositional Record, Volume 12, Issue 4, September 2026.
An integrated facies, MS and XRF‐based approach applied to the Tithonian–Berriasian Sidi Khalif Formation (central Tunisia) resolves five Tithonian and eight Berriasian third‐order sequences, showing how mixed carbonate–siliciclastic shelves record coupled eustatic, climatic and tectonic controls and providing a transferable template for similar mud ...
Hamdi Omar, Adnene Lafi, Chokri Yaich
wiley   +1 more source

Microfacies and diagenesis in the Setul Limestone in Langkawi and Perlis [PDF]

Bulletin of the Geological Society of Malaysia, 2013
The Setul limestone outcrops in Langkawi and Perlis show a variety of facies consisting of thickly bedded mudstone, wackestone, packstone, grainstone and dolomitic limestone. Seven microfacies have been recognized comprising of dolomicritic mudstone, bioclastic wackestone, peloidal wackestone, intraclastic wackestone, pelloidal packstone, pelloidal ...
Che Aziz Ali, Kamal Roslan Mohamed
openaire   +1 more source

(Table 3) Microfacies of DSDP Hole 76-534A Oxfordian claystones

, 1983
(Table 3) Microfacies of DSDP Hole 76-534A Oxfordian ...
Robertson, Alastair H F, James G Ogg (6963563), Ogg, James G, Alastair H F Robertson (6961169), Lubomir F Jansa (6972941), Jansa, Lubomir F   +5 more
core   +1 more source

How life affects mineral formation: A reappraisal of concepts and terminology

The Depositional Record, Volume 12, Issue 4, September 2026.
We present a moderately revised terminology of concepts how life may influence mineral formation. This framework would be more consistent and universally applicable. Abstract Numerous biological factors have been proposed to influence the formation of minerals under Earth‐surface conditions, but the underlying concepts are often confused due to ...
Patrick Hadrian Meister, Nereo Preto
wiley   +1 more source

Diagenetic evolution and geochemical controls on carbonate platform development in the Middle Eocene Jahrum Formation, Zagros Basin

The Depositional Record, Volume 12, Issue 4, September 2026.
Integrated petrographic, mineralogical and geochemical workflow for reconstructing the diagenetic evolution of the Middle Eocene Jahrum Formation in the Zagros Basin. The diagram illustrates the methodological framework combining field observations, laboratory analyses (XRD, SEM‐EDS, stable isotopes, cathodoluminescence), pyrite framboid geochemistry ...
Mehdi Baniasadi, Vahid Ahmadi, Mohammad Reza Esmaeilbeig, Pooria Kianoush   +3 more
wiley   +1 more source

Sedimentological analysis of the Dokan Formation (Cenomanian) in Goizha Section, Azmar Anticline, Northeastern Iraq

المجلة العراقية الوطنية لعلوم الارض
The Dokan Formation (Cenomanian) has been studied within the Azmar anticline in Sulaymaniyah Governorate (about 4 km northeast of the city center). The field description shows that the Dokan Formation is composed mainly of light-gray limestone rocks and ...
Noor T. Al-Taee
doaj   +1 more source

Caracterização de Microfácies Sedimentares em Folhelhos da Formação Ponta Grossa (Devoniano) na Borda Leste da Bacia do Paraná [PDF]

Anuário do Instituto de Geociências, 2011
Este estudo objetiva a caracterização de microfácies em afloramentos da borda Leste da bacia do Paraná (34 amostras) representando um trato de sistema transgressivo (20 amostras da parte inferior do Membro Jaguariaíva) e um trato de sistema de mar alto ...
Thiago Gonçalves Carelli, Leonardo Borghi   +1 more
doaj  

Northern Adriatic Runoff During Pliocene Sapropel Deposition: Implications for Mediterranean Deoxygenation

Paleoceanography and Paleoclimatology, Volume 41, Issue 9, September 2026.
Abstract The Piacenzian (Pliocene) warm period featured extreme low‐oxygen conditions and organic‐rich (sapropel) sedimentation in the Mediterranean Sea, yet the processes operating along northern borderlands and marginal basins remain poorly constrained.
A. M. Mancini, F. Caridi, G. Marino, R. Capozzi, C. Morigi, F. Dela Pierre, A. Negri   +6 more
wiley   +1 more source

Microfacies and Depositional Environment of Jeribe Formation (Middle Miocene) in Z -Oilfield Northern of the Salahuddin Governorate

Iraqi Geological Journal
This study aims to diagnose microfacies of the Jeribe Formation to determine depositional environments and derivation depositional model for this formation.
Mustafa Abdullah, Abdulsalam Salih, Faris Hassan   +2 more
doaj   +1 more source