Results 11 to 20 of about 80,210 (236)

Clumped‐Isotope Geothermometry and Carbonate U–Pb Geochronology of the Alta Stock Metamorphic Aureole, Utah, USA: Insights on the Kinetics of Metamorphism in Carbonates

Geochemistry, Geophysics, Geosystems, 2021
To assess thermal and kinetic influences on atomic mobility and mineral (neo)crystallization, clumped‐isotope abundances of calcite and dolomite were measured alongside dolomite cation ordering and U–Pb dates, across metamorphic grade within the c. 35–30 
Dana C. Brenner, Benjamin H. Passey, Robert M. Holder, Daniel R. Viete   +3 more
doaj   +1 more source

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

Origin and characteristics of grain dolomite of Ordovician Ma55 Member in the northwest of Ordos Basin, NW China

Petroleum Exploration and Development, 2019
The origin of grain dolomite in M55 Member of Ordovician Majiagou Formation in northwestern Ordos Basin was studied by geochemical and petrological tests on core samples.
Xi ZHANG, Tingshan ZHANG, Bianjun LEI, Jingxuan ZHANG, Ji ZHANG, Zhongjun ZHAO, Jinjie YONG   +6 more
doaj   +1 more source

Discriminating cool-water from warm-water carbonates and their diagenetic environments using element geochemistry: the Oligocene Tikorangi Formation (Taranaki Basin) and the dolomite effect [PDF]

, 2004
Fields portrayed within bivariate element plots have been used to distinguish between carbonates formed in warm- (tropical) water and cool- (temperate) water depositional settings.
Nelson, Campbell S., Hood, Steven D., Campbell S. Nelson, Kamp, Peter J.J., Steven D. Hood, Peter J. J. Kamp   +5 more
core   +1 more source

Massive formation of early diagenetic dolomite in the Ediacaran ocean: Constraints on the “dolomite problem”

Proceedings of the National Academy of Sciences of the United States of America, 2020
Significance Massive Paleozoic and Precambrian dolostone successions have long puzzled geologists in light of the kinetic barriers that inhibit low-temperature dolomite nucleation and precipitation (i.e., the “dolomite problem”).
Biao Chang, Chao Li, Deng Liu, I. Foster, A. Tripati, M. Lloyd, I. Maradiaga, G. Luo, Z. An, Zhenbing She, Shucheng Xie, J. Tong, Junhua Huang, T. Algeo, T. Lyons, A. Immenhauser   +15 more
semanticscholar   +1 more source

Palaeoproterozoic magnesite: lithological and isotopic evidence for playa/sabkha environments [PDF]

, 2001
Magnesite forms a series of 1- to 15-m-thick beds within the approximate to2.0 Ga (Palaeoproterozoic) Tulomozerskaya Formation, NW Fennoscandian Shield, Russia.
Fallick, A.E., Anthony E. Fallick, Fallick, A., Vladimir V. Makarikhin, Medvedev, P.V., Makarikhin, V.V., Victor A. Melezhik, Melezhik, V.A., Pavel V. Medvedev   +8 more
core   +1 more source

Gritty Dolomite

, 2022
The Gritty Dolomite (dolomitic cataclasite) from the Naukluft ...
Inga Boianju, Christie Rowe, Emily Perry
core   +7 more sources

Comparison of the effectiveness of natural dolomite and modified dolomite in the removal of heavy metals from aqueous solutions [PDF]

Journal of Advances in Environmental Health Research, 2019
Presence of heavy metals in water resources is a critical environmental challenge in various communities. To date, various methods have been applied to remove heavy metals, such as the use of cost-efficient materials.
Zeinab Imen, Amir Hessam Hassani, Seyyed Mehdi Borghaee   +2 more
doaj   +1 more source

First discovery of dolomite and magnesite in living coralline algae and its geobiological implications [PDF]

Biogeosciences, 2011
Dolomite is a magnesium-rich carbonate mineral abundant in fossil carbonate reef platforms but surprisingly rare in modern sedimentary environments, a conundrum known as the "Dolomite Problem".
M. C. Nash, U. Troitzsch, B. N. Opdyke, J. M. Trafford, B. D. Russell, D. I. Kline   +5 more
doaj   +1 more source

Analytical and numerical study of dolomite sinkholes in Centurion South Africa [PDF]

, 2014
Includes bibliographical references.Sinkholes encompass the withdrawal of shallow sediment into deep hollow compartments located in karstic stratum. These subsequent surface openings associated with karst geology have inhibited multiple infrastructure ...
Avutia, Daniel John
core   +1 more source