Results 81 to 90 of about 7,725 (211)

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

Origin and timing of stratabound dolomitization in the Cretaceous carbonate ramp of Benicàssim [PDF]

, 2015
Hydrothermal dolomitization is one of the most important processes that may enhance or degrade carbonate porosity and permeability. Burial, high emperature or hydrothermal dolomite forms due to the interaction of one or more solutions, mainly seawater ...
Corbella i Cordomí, Mercè, Griera, A., Gómez Rivas, Enrique, Martín, Juan Diego (Martín Martín), Stafford, S.L., Teixell Cácharo, Antonio   +5 more
core  

Formation mechanisms and development models of dolomite reservoirs in Ordovician Yingshan Formation in Shunnan area, Tarim Basin

Shiyou shiyan dizhi, 2020
The dolomite reservoirs of the Ordovician Yingshan Formation in Shunnan area of the Tarim Basin have a great oil and gas potential. However, the genesis of different types of dolomite reservoirs is still subject to debate.
Rendong KANG, Wanbin MENG, Chunhui XIAO
doaj   +1 more source

Trace Elements and Sulfur Isotopes of Sulfides at the Leon Sediment‐Hosted Gold Deposit, Ratatotok District, North Sulawesi, Indonesia: Constraints on the Genesis of Ore Formation

Resource Geology, Volume 76, Issue 1, January/December 2026.
The Leon deposit is interpreted as a sediment‐hosted gold deposit with a probable distal intrusion‐centered setting. Hydrothermal fluids migrated through fractures and bedding planes, likely leached sulfur and metals from andesitic rocks, and formed orebodies along bedding planes and at limestone–andesite contacts controlled by permeability contrasts ...
Muhammad Arba Azzaman, Ryohei Takahashi, Pearlyn Manalo, Andrea Agangi, Manuel Nopeia, Hinako Sato, Arifudin Idrus, Doly R. Simbolon, Renaldi Suhendra   +8 more
wiley   +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

Hematite Formation During Skarn Mineralization in the Akatani Iron Deposit, Niigata Prefecture, Japan

Resource Geology, Volume 76, Issue 1, January/December 2026.
The Akatani Fe deposit in NE Japan has been regarded as a skarn deposit because iron‐oxide ores occur within marble‐hosted skarn near the Cretaceous Ninoujidake granite. U–Pb dating of fluorapatite in the skarn indicates that this skarn formed in the Late Cretaceous, contemporaneous with the granite.
Kotaro Seno, Yasushi Watanabe, Takuya Echigo, Shogo Aoki, Keita Itano, Shota Satori, Yoshiaki Kon   +6 more
wiley   +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

Track of fluid paleocirculation in dolomite host rock at regional scale by the Anisotropy of Magnetic Susceptibility (AMS): An example from Aptian carbonates of La Florida (Northern Spain) [PDF]

, 2009
International audienceThe present study aims to apply the AMS method (Anisotropy of Magnetic Susceptibility) at a regional scale to track the fluid circulation direction that has produced an iron metasomatism within pre-existing dolomite host rock.
Barbanson, Luc, Branquet, Yannick, Camps, Pierre, Canals, Angels, Chen, Yan, Essalhi, Mourad, Panis, Dominique, Rochette, Pierre, Sizaret, Stanislas   +8 more
core   +4 more sources

Characteristics and the formation mechanism of the dolomite reservoirs for Lower Ordovician Majiagou Formation, central Ordos Basin, China

Frontiers in Earth Science
The distribution of anhydrite contributes to the formation of high-quality dolomite reservoirs. However, the lower part of the Lower Ordovician Majiagou Formation in the central Ordos Basin shows significant natural gas potential despite in anhydrite ...
Kun Tian, Jinsong Zhou, Xiao Yin, Chunqi Xue, Jun Cao, Ling Ma, Weibo Zhao   +6 more
doaj   +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