Results 91 to 100 of about 7,837 (231)

Autochthonous Micrite to Aphanodolomite: The Microbialites in the Dolomitization Processes

Geosciences, 2018
In the present paper, we examine the influence of micrite types, autochthonous or allochthonous, on the dolomitization processes. The recrystallized and dolomitized Carnian samples from Rifugio Vallandro and Alpe di Specie erratic boulders (South Tyrol ...
Adriano Guido, Franco Russo, Domenico Miriello, Adelaide Mastandrea   +3 more
doaj   +1 more source

Lo ratio 87Sr/86Sr aplicado a la discriminación de los episodios de sedimentación carbonatada en la Zona de Ossa-Morena [PDF]

, 2016
The carbonated sedimentation in Ossa-Morena Zone during the Palaeozoic is formed, at least, by two main episodes. However, some chronological questions remain open, due to lack of biostratigraphic data in some carbonates.
Araújo, António, Dias, Rui, Mirão, José, Moreira, Noel, Pedro, Jorge, Ribeiro, António, Ribeiro, S., Romão, José, Santos, José Francisco   +8 more
core  

Tidal flat deposits of the Lower Proterozoic Campbell Group along the southwestern margin of the Kaapvaal Craton, Northern Cape Province, South Africa [PDF]

, 1991
Lower Proterozoic stromatolites and associated clastic carbonate deposits of the Campbell Group, from the southern margin (Prieska area) of the Kaapvaal Craton, northern Cape Province, are described.
Aigner, Aitken, Altermann, Armstrong, Awramik, Beukes, Beukes, Beukes, Beukes, Beukes, Beukes, Beukes, Beukes, Beukes, Beukes, Black, Button, Clendenin, Danielson, Davies, Donaldson, Dravis, Eriksson, Eriksson, Eriksson, Flügel, Flügel, Folk, Garrett, Gatrall, Ginsburg, H.-G. Herbig, Hardie, Harris, Hoffman, Hoffman, Hofmann, Irwin, James, Kendall, Klein, Logan, Logan, Logan, Mawson, McIllreath, Miller, Monty, Peryt, SACS-South African Committee for Stratigraphy, Shinn, Smoot, Truswell, Truswell, Van Straaten, Visser, W. Altermann, Walraven, Walter, Wilson, Young, Young, Young, Young, Young, Young, Young   +66 more
core   +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

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

The effect of dolomitization on the strontium concentration in the Columbus limestone, Columbus, Ohio [PDF]

, 1969
No ...
Davenport, Thomas
core  

Modification of dolomitization on reservoir spaces in reef–shoal complex: A case study of Permian Changxing Formation, Sichuan Basin, SW China

Open Geosciences
The porosity of the reef–shoal complex increases with the increase of dolomite content, and it is worth investigating whether dolomitization leads to the formation of new pores or maintains the original porosity.
Zhang Qiang, Liu Lizhi, Song Honglu, Jin Chaosu, Qiao Na, Qi Lin   +5 more
doaj   +1 more source

Genesis and reservoir preservation mechanism of 10 000‐m ultradeep dolomite in Chinese craton basin

Deep Underground Science and Engineering
The 10 000‐m ultradeep dolomite reservoir holds significant potential as a successor field for future oil and gas exploration in China's marine craton basin.
Guangyou Zhu, Xi Li, Bin Zhao, Hua Jiang, Yinghui Cao, Yan Zhang, Weiyan Chen, Tingting Li, Jiakai Hou   +8 more
doaj   +1 more source

Dolomitization of Ordovician Kelimoli carbonates linking to shale oil formation, western Ordos Basin: new insights from magnesium and strontium isotopes

Frontiers in Earth Science
Deciphering the dolomitization process has great significance for high-quality hydrocarbon reservoir prediction in carbonate successions. The Ordovician Wulalike Formation provides shale oil in the western Ordos Basin, while lateral-contact marine ...
Xianghui Jing, Xianghui Jing, Xianghui Jing, Jingchun Tian, Lei Zhang, Lei Zhang, Fengjie Li, Han Li, Han Li   +8 more
doaj   +1 more source

Silicification and dolomitization of anhydrite nodules in argillaceous terrestrial deposits: an example of meteoric-dominated diagenesis from the Triassic of central Spain [PDF]

, 2002
Cauliflower-shaped nodules are widespread in a single red mudstone bed in the Buntsandstein (Triassic) facies of the Iberian Range. They consist mostly of quartz, dolomite and calcite, but other minerals, such as barite, kaolinite and iron ...
Alonso-Zarza, Ana María, Bustillo Revuelta, María Ángeles, Delgado Huertas, Antonio, Sopeña, Alfonso, Sánchez Moya, Yolanda   +4 more
core   +1 more source