Article
Geosciences, Multidisciplinary
Huixuan Huang, Huaguo Wen, Long Wen, Benjian Zhang, Gang Zhou, Yuan He, Longbin Wen, Yan Zhao, Huachuan Jiang
Summary: The dolostone units in the Cambrian Changlangpu Formation of the Sichuan Basin show significant natural gas exploration potential. This study combines petrographic properties and geochemical evidence to understand the different phases of dolomite and their diagenetic pathways. The findings include six identified dolomite phases and their corresponding formation processes. The research also provides insights into the implications of fluid inclusion evidence and rare-earth element data.
MARINE AND PETROLEUM GEOLOGY
(2023)
Article
Geochemistry & Geophysics
Zhipeng Chen, Yanfei Yang, Caiyuan Dong, Ningxi Li, Pengtao Wang, Shaohua Zhang, Wei Dang, Yun Liao
Summary: This study evaluates the genesis and characteristics of the Cambrian dolomite in the Bachu area. The research shows that the dolomite mainly formed in a coeval seawater environment during the penecontemporaneous and shallow burial stages, and has undergone extensive recrystallization and burial diagenesis due to long-term deep burial.
Article
Geochemistry & Geophysics
Xi Li, Guangyou Zhu, Tingting Li, Lei Zhou, Yuxuan Wu, Bing Shen, Meng Ning
Summary: Recovering the Mg isotopic composition of seawater using penecontemporaneous dolomite is possible; however, the Mg isotopic composition of dolomite may be changed by later diagenesis and hydrothermal activities. Solving this problem requires further research on the behavior of Mg isotopes in dolomitization systems.
APPLIED GEOCHEMISTRY
(2023)
Article
Geosciences, Multidisciplinary
Zhaolin Yang, Xinshe Liu, Xu Han, Hu Zhou, Sha Zhan, Xiaojun Gui, Jihong Niu, Ke Wang
Summary: This study investigates the periods of hydrothermal fluids involved in the formation of different types of dolomites in the Middle Ordovician Majiagou Formation in the southern Ordos Basin. The results reveal that different types of dolomites formed under different mechanisms, including the involvement of low-salinity meteoric water in the mixing zone, interactions between hydrothermal fluids and matrix carbonates, and the injection of high-temperature acid fluids associated with organic matter maturing. This study provides important insights for understanding the diagenetic process of reservoir dolostones in the Middle Ordovician in the Ordos Basin.
FRONTIERS IN EARTH SCIENCE
(2022)
Article
Geosciences, Multidisciplinary
Kareem H. Kareem, Ihsan S. Al-Aasm, Howri Mansurbeg
Summary: The study identified multiple generations of dolomite in the Lower Cretaceous Qamchuqe Formation in the Kurditan Region of Iraq, originating from a mixture of hydrothermal and marine fluids, causing dolomitization of the host rock and precipitation of dolomite cements.
MARINE AND PETROLEUM GEOLOGY
(2021)
Article
Geosciences, Multidisciplinary
Huachuan Jiang, Jintong Liang, Karem Azmy, Jixiang Cao, Long Wen, Gang Zhou, Yuan He, Sibing Liu, Fei Huo, Huaguo Wen
Summary: This study investigates the mechanisms of dolomitization in the Longwangmiao Formation in the Sichuan Basin. The results show that there are three types of dolomite and the parent dolomitizing fluids were likely modified seawater. The formation of dolomite is controlled by sedimentary facies, lithology, and sea-level fluctuations.
MARINE AND PETROLEUM GEOLOGY
(2023)
Article
Energy & Fuels
Ruixin Guo, Shaonan Zhang, Kun Wang, Meimei Han, Xiaoqi Ding
Summary: The dolomitization of the thick carbonates in the Gucheng uplift in northwestern China has led to the formation of massive dolomite reservoirs. Different dolomite types formed under varied conditions, influencing their mineral compositions and porosity, which in turn affect the geological characteristics and oil and gas exploration in the area.
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
(2021)
Article
Geochemistry & Geophysics
Huan Hu, Shenglin Xu, Anqing Chen, Long Wen, Benjian Zhang, Xihua Zhang, Fuxiang Li, Mengqi Liu, Wei Yong
Summary: This study investigates the characteristics and genesis of the Late Upper Cambrian Xixiangchi dolostones in the Sichuan Basin. Three types of dolomite were identified, each formed in a different environment and process. Type 1 dolomite formed in a supratidal environment influenced by continental factors, Type 2 dolomite formed in a beach environment, and Type 3 dolomite underwent further burial dolomitization. These findings have important implications for predicting dolomite porosity distribution and identifying hydrocarbon reservoirs.
Article
Geography, Physical
Pei-yuan Hu, Qing-guo Zhai, Guo-chun Zhao, Jun Wang, Yue Tang, Zhi-cai Zhu, Wei Wang, Hao Wu
Summary: The study focused on gneissic granites in the Amdo microcontinent in central Tibetan Plateau, revealing Cambrian ages of around 500 Ma. Geochemical analysis showed that these granites belong to high-K calc-alkaline I-type granitoids, potentially formed through partial melting of ancient crustal materials influenced by mantle-derived magmas.
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2021)
Article
Geochemistry & Geophysics
Qilu Xu, Yongzhi Cheng, Donghua You, Yu Zhang, Xinle Li, Jin Xu, Xudong Chen
Summary: This study systematically analyzes the lithofacies, reservoir space differences, and reservoir formation mechanism of the unconventional tight reservoir in the Lower Cambrian Yuertus Formation in the Tabei area. The results show that siliceous rock and dolomite have stable properties and can effectively maintain early pores, thus retaining large-scale storage spaces.
Article
Geosciences, Multidisciplinary
Noel Shembilu, Karem Azmy, Nigel Blamey
Summary: The study focuses on the petrographic and geochemical characteristics of carbonates in the Middle and Upper Cambrian Port au Port Group in western Newfoundland. It reveals the presence of three generations of dolomite in the carbonates, with variations in structure reflecting progressive burial, and gas analysis results coherent with the characteristics of dolomites.
MARINE AND PETROLEUM GEOLOGY
(2021)
Article
Geosciences, Multidisciplinary
Jintong Liang, Sibing Liu, Luping Li, Jie Dai, Xiaotian Li, Chuanlong Mou
Summary: This study reveals the dolomitization characteristics and diagenetic processes of the Middle-Upper Cambrian Xixiangchi Formation carbonates in the Sichuan Basin. The findings indicate the presence of three generations of dolomite, with different petrographic features and elemental compositions, suggesting the influence of different diagenetic fluids.
FRONTIERS IN EARTH SCIENCE
(2022)
Article
Geochemistry & Geophysics
Pei Chen, Meiyan Fu, Hucheng Deng, Wang Xu, Dong Wu, Puwei He, Hengwei Guo
Summary: The study investigated the diagenetic alteration related to hydrothermal fluid-rock reactions in the Qixia Formation in Sichuan Basin. By analyzing petrographic characteristics, geochemical parameters, and timing of diagenetic mineral precipitation, it established a dolomitization model to enhance the understanding of the effect of hydrothermal fluid activities on the carbonate rocks in the Qixia Formation.
Article
Multidisciplinary Sciences
Emad Ullah Khan, Abbas Ali Naseem, Maryam Saleem, Faisal Rehman, Syed Waseem Sajjad, Waqar Ahmad, Tahir Azeem
Summary: This study documents the process of dolomitization and evolution of strata bound dolomitic bodies in the Jurassic Samanasuk Formation in the Dara Adam khel area of Kohat ranges, North-Western Himalayas, Pakistan. Field investigation, petrography, and geochemistry helped unravel the formation of several dolomitic bodies. Stable O and C isotope analysis shows the formation process of these dolomites, while major and trace elements data reveal the conditions under which dolomitization occurred.
Article
Geosciences, Multidisciplinary
Zhongtang Su, Hui Ma, Sunlong Hu, Guoqing Liu, Jinglan Luo
Summary: This study investigated dolostones in the Ordos Basin and identified three types of matrix dolomites. Based on petrography, trace elements, and oxygen-carbonstrontium isotopic geochemistry, it is suggested that the initial dolomitization of Md1 and Md2 dolomites may have occurred in near-surface to shallow burial settings, while Md3 dolomites likely resulted from significant recrystallization during burial.
JOURNAL OF ASIAN EARTH SCIENCES
(2022)
Article
Geosciences, Multidisciplinary
Mara Limonta, Eduardo Garzanti, Alberto Resentini, Sergio Ando, Maria Boni, Thilo Bechstaedt
Article
Geochemistry & Geophysics
L. Santoro, G. K. Rollinson, M. Boni, N. Mondillo
Review
Geology
Maria Boni, Nicola Mondillo
ORE GEOLOGY REVIEWS
(2015)
Article
Geosciences, Multidisciplinary
Eduardo Garzanti, Sergio Ando, Giovanni Vezzoli, Michele Lustrino, Maria Boni, Pieter Vermeesch
EARTH-SCIENCE REVIEWS
(2012)
Article
Geochemistry & Geophysics
M. Boni, G. Rollinson, N. Mondillo, G. Balassone, L. Santoro
Article
Geochemistry & Geophysics
N. Mondillo, M. Boni, G. Balassone, I. M. Villa
Article
Geosciences, Multidisciplinary
M. Boni, N. Mondillo, G. Balassone, M. Joachimski, A. Colella
INTERNATIONAL JOURNAL OF EARTH SCIENCES
(2013)
Article
Geochemistry & Geophysics
Pietro Iavazzo, Paola Adamo, Maria Boni, Stephen Hillier, Mariavittoria Zampella
JOURNAL OF GEOCHEMICAL EXPLORATION
(2012)
Article
Engineering, Chemical
L. Santoro, M. Boni, G. K. Rollinson, N. Mondillo, G. Balassone, A. M. Clegg
MINERALS ENGINEERING
(2014)
Review
Geology
L. Santoro, M. Boni, R. Herrington, A. Clegg
ORE GEOLOGY REVIEWS
(2013)
Article
Geology
N. Mondillo, M. Boni, G. Balassone, M. Joachimski, A. Mormone
ORE GEOLOGY REVIEWS
(2014)
Article
Geology
G. Mongelli, M. Boni, R. Buccione, R. Sinisi
ORE GEOLOGY REVIEWS
(2014)
Article
Geosciences, Multidisciplinary
Maria Boni, Steven M. Reddy, Nicola Mondillo, Giuseppina Balassone, Rich Taylor
Article
Environmental Sciences
Pietro Iavazzo, Daniela Ducci, Paola Adamo, Marco Trifuoggi, Antonello Migliozzi, Maria Boni
WATER AIR AND SOIL POLLUTION
(2012)