Results 41 to 50 of about 1,174 (182)

Microfacies Analysis and Diagenesis Processes of Yamama Formation in Selected Wells of Fihaa Oilfield, Southern Iraq

Academic Science Journal
 This study focused on explained the carbonate microfacies of Yamama Formation and the impact of diagenesis processes in selected wells of Fiahaa oilfield in south of Iraq.
Salah Hussain, Ibtehag Hashim Sultan
doaj   +1 more source

Emendation of the Grivska formation in its type area (Dinaridic Ophiolite Belt, SW Serbia) [PDF]

Geološki Anali Balkanskoga Poluostrva, 2018
Age, microfacies and depositional realm of the Grivska Formation is controversially discussed due to the fact that detailed investigations are missing. Based on reinvestigations of the type locality of the Grivska Formation and in adjacent areas,
Sudar Milan N., Gawlick Hans-Jürgen
doaj   +1 more source

Sedimentological, Diagenetic, and Sequence Stratigraphic Controls on the Shallow to Marginal Marine Carbonates of the Middle Jurassic Samana Suk Formation, North Pakistan

Journal of Marine Science and Engineering, 2023
This study presents a thorough analysis of the sedimentology, diagenesis, and sequence stratigraphy of the Middle Jurassic Samana Suk Formation in the Hazara Basin of northern Pakistan.
Shazia Qamar, Mumtaz Muhammad Shah, Hammad Tariq Janjuhah, George Kontakiotis, Amir Shahzad, Evangelia Besiou   +5 more
doaj   +1 more source

Recognition of fossil keratose sponges in carbonates using petrographic and machine‐learning classification

Sedimentology, EarlyView.
ABSTRACT Filamentous, anastomosing spar‐filled networks in Phanerozoic carbonates have been interpreted as the mineralised remains of keratose (non‐spiculate) sponges, yet their recognition remains contested because fabrics of broadly similar appearance may arise from microbial, diagenetic or physical processes. This study combines direct fossil–modern
Jeong‐Hyun Lee, Seung‐Sep Kim, Cui Luo   +2 more
wiley   +1 more source

Influence of sedimentary microfacies on the rock mechanics of ultra-deep reservoirs and its application: a case study of the Cretaceous formation in the BZ gas field of Kuqa Depression, Tarim Basin

Shiyou shiyan dizhi
To optimize the identification of sweet spots with natural fracture development in ultra-deep tight sandstone reservoirs of Cretaceous in the Kuqa Depression, Tarim Basin, this study systematically analyzed the differences in rock mechanical properties ...
Zhimin WANG, Haitao SUN, Hui ZHANG, Chenguang WANG, Guoqing YIN, Ke XU, Dakang ZHONG   +6 more
doaj   +1 more source

Las microfacies carbonatadas neógenas en un sector occidental de la depresión del Bajo Guadalquivir

Estudios Geologicos, 1991
Se establecen las microfacies carbonatadas (microfacies A a G), de los materiales calcareníticos neógenos de Carmona, Alcalá de Guadaira y Arcos de la Frontera-Bornos, situados en el extremo occidental de la Depresión del Guadalquivir.
F. L. Clauss
doaj   +1 more source

Contourite erosional and depositional features of the Maastrichtian chalk on Jasmund peninsula (Rügen island, NE Germany)

Sedimentology, EarlyView.
ABSTRACT Seismic‐scale features such as deeply incised submarine valleys and mounded drifts together with ichnological features indicative of discontinuous sedimentation and erosional episodes have recently been documented from the Upper Cretaceous chalk in the southern Baltic Sea area.
Marcel Schlembach, Heiko Hüneke, Mike Reich, Svante Peters, Nele Ahlhaus, Sylvia Weinert, Arwed Gibb   +6 more
wiley   +1 more source

Fine Identification and Application of Single Well Facies of Pinghu Formation Clastic Rocks in NX Area of Xihu Sag

Cejing jishu
To precisely identify single well facies (microfacies) of clastic rocks in the Pinghu formation of NX area, Xihu sag, understand their internal characteristics, and support reservoir evaluation and prediction of favorable reservoirs, phase marker ...
ZHANG Ruixiang, YAN Jianping, YAN Hua, GENG Bin, WANG Jun, QIU Xiaoxue   +5 more
doaj   +1 more source

MICROFACIES, DEPOSITIONAL ENVIRONMENT, AND DIAGENETIC PROCESSES OF THE MAUDDUD MEMBER, IN THE PERSIAN GULF [PDF]

Journal of Petroleum Science and Technology, 2014
Mauddud member with the age of late Albian to Cenomanian is equivalent to the lower Sarvak formation in the southern Persian Gulf and adjacent area. In this work, microfacies, depositional environment, and diagenetic processes affected the Mauddud member
Alireza Shakeri, Somayeh Parham
doaj   +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