Results 51 to 60 of about 736 (184)

Dolomitization and Hypogenic Dissolution of the Eocene Avanah Formation, Iraqi Kurdistan

ARO-The Scientific Journal of Koya University
This study constrains the mechanism of extensive dolomitization and its impact on reservoir quality of the shallowwater marine ramp carbonates of the Avanah Formation (Eocene), Iraqi Kurdistan.
Gazang H. Qadir, Howri Mansurbeg
doaj   +1 more source

Structure and sedimentation environment of the Silurian and Devonian boundary deposits in the west of Zeravshan-Gissar mountain region (Obi-Safit section, Kitab State Geological Reserve, Uzbekistan)

Литосфера, 2017
Continuous sequence of the boundary carbonate sediments of the Silurian and Devonian in the Ludford - Lochkov interval (Kupruk and lower part of Madmon Formation) have been studied in the Zeravshan-Gissars mountainous region of southern Tian-Shan, Kitab ...
Elena D. Mihaylova, Аnna B. Tarasenko, Utkir Zh. Rakhmonov, Мaiya V. Erina, Svetlana T. Remizova   +4 more
doaj   +1 more source

A tale of two microbialites: Stromatolites and microbially induced sedimentary structures

Sedimentology, Volume 73, Issue 4, Page 849-863, June 2026.
ABSTRACT Microbialites are biosedimentary structures built by microbial mats. Five microbialite groups are distinguished: stromatolites, thrombolites, dendrolites, leiloites and microbially induced sedimentary structures (MISS). This contribution discusses the two most abundant microbialite groups in marine settings, stromatolites and MISS.
Nora Noffke, Stanley M. Awramik
wiley   +1 more source

Barium Isotopes Indicate Spatiotemporal Heterogeneity of Marine Primary Productivity During the Toarcian Oceanic Anoxic Event

Geophysical Research Letters, Volume 53, Issue 10, 28 May 2026.
Abstract The Toarcian Oceanic Anoxic Event (T‐OAE, ∼183 Ma) was characterized by globally enhanced organic‐carbon burial and a negative carbon‐isotope excursion (N‐CIE). However, the role of marine productivity at this time, and its spatiotemporal variability, is unclear.
Wenhan Chen, David B. Kemp, Hugh C. Jenkyns, Stuart A. Robinson, Yibo Lin, Jun Hu, Zhong Han, Tianchen He, Feifei Zhang, Xilei Sun, Guangyu Shi, Chao Li   +11 more
wiley   +1 more source

Dolomite caves within the Seroe Domi Formation on Curacao, Netherland Antilles

Acta Carsologica, 2016
Remnant caves formed within the dolomitized Seroe Domi Formation on Curaçao were documented in order to determine their origin. Petrographic thin sections and geochemical analyses of samples from outcrops and cave wall rock agree with previous ...
Jonathan B Sumrall, Erik B. Larson, John E. Mylroie   +2 more
doaj   +1 more source

Magnetotelluric Exploration of Zn Pb Mineralization in Stonepark, Irish Midlands

Geophysical Prospecting, Volume 74, Issue 4, May 2026.
ABSTRACT To meet the increasing demand for raw materials and to foster the energy transition, advances in exploration techniques are required that extend capabilities to deeper and/or more densely populated areas while having a low environmental and societal impact.
K. Tietze, A. Platz, O. Ritter, U. Weckmann, M. Holdstock, P. Rieger, V. Susin, A. Melo, K. Torremans, D. Kiyan   +9 more
wiley   +1 more source

A research on seismic forward modeling of hydrothermal dolomite：An example from Maokou formation in Wolonghe structure, eastern Sichuan Basin, SW China

European Journal of Remote Sensing, 2020
To solve the problem of multi-resulted in seismic responses brought by dual impacts of the thickness and the lithologic association for further research of seismic response characteristics of hydrothermal dolomite, significant efforts have been made ...
Zhengping Zhu, Bole Gao, Renfang Pan, Rong Li, Yang Li, Tianjun Huang   +5 more
doaj   +1 more source

Dolomites in a carbonate-evaporite system: the fifth member of the Middle Ordovician Majiagou Formation, Eastern Ordos Basin, China

Frontiers in Marine Science
IntroductionThe carbonate-evaporite system contains substantial hydrocarbon resources and serves as an excellent subject for studying dolomitization problem.
Siyi Fu, Siyi Fu, Siyi Fu, Siyi Fu, Chenggong Zhang, Chenggong Zhang, Chenggong Zhang, Hao Liu, Hao Liu, Hao Liu, Liubin Wei, Hongping Bao, Xingchao Ye, Zhongtang Su, Zhongtang Su, Zhongtang Su, Hongde Chen, Hongde Chen, Hongde Chen, Liangbiao Lin, Liangbiao Lin, Liangbiao Lin   +21 more
doaj   +1 more source

Magnesium geochemistry of authigenic carbonate at marine cold seep

Frontiers in Marine Science
Cold seeps, featured by their extremely methane-rich sedimentary environments, play a significant role in the geological history and are common in marine sediments across the seafloor.
Yukai Tang, Hailong Lu, Hailong Lu, Hailin Yang   +3 more
doaj   +1 more source

Petrophysical Zonation through Integration of Well-Logging and Core Data in Carbonate Reservoirs: A Case Study from the Dalan and Kangan Formations, Central Persian Gulf [PDF]

Journal of Stratigraphy and Sedimentology Researches
.AbstractThe Permian–Triassic carbonates of the Kangan–Dalan formations in the central Persian Gulf represent one of the largest gas reservoirs in Iran and worldwide. Integrated petrophysical–core zonation, supported by multivariate cluster analysis, was
Vahid Tavakoli, Saman Darvish-Bastami
doaj   +1 more source