(of minerals) having crystallized in a sediment during or after deposition
Word origin
C19: from German authigene from Greek authigenēs native + -ic
Examples of 'authigenic' in a sentence
authigenic
Subsequently, sediments and authigenic carbonates from methane-influenced marine environments were analysed.
Darci Rush, Kate A. Osborne, Daniel Birgel, Andreas Kappler, Hisako Hirayama, JörnPeckmann, Simon W. Poulton, Julia C. Nickel, Kai Mangelsdorf, Marina Kalyuzhnaya,Frances R. Sidgwick, Helen M. Talbot 2016, 'The Bacteriohopanepolyol Inventory of Novel Aerobic Methane Oxidising Bacteria RevealsNew Biomarker Signatures of Aerobic Methanotrophy in Marine Systems', PLOS ONE10.1371/journal.pone.0165635. Retrieved from PLOS CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
The relationship between methane leakage flux and authigenic minerals was also discussed.
Tianfu Xu, Songhua Shang, Hailong Tian, Keqi Bei, Yuqing Cao 2019, 'Numerical Simulation on Authigenic Barite Formation in Marine Sediments', Mineralshttps://www.mdpi.com/2075-163X/9/2/98. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
During evaporitic condition, authigenic minerals precipitated: carbonates, sulfates (anhydrite, gypsum and polyhalite) and halite (predominant).
Nicolae Har, Ovidiu Barbu, Vlad Codrea, Iustinian Petrescu 2006, 'New data on the mineralogy of the salt deposit from Slanic Prahova (Romania)', Studia Universitatis Babes-Bolyai: Geologiahttp://scholarcommons.usf.edu/geologia/vol51/iss1/art4/. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
They are most probably derived from pre-existing authigenic phosphorites.
Esmat A. Abou El-Anwar, H.S. Mekky, S.H. Abd El Rahim, S.K. Aita 2017, 'Mineralogical, geochemical characteristics and origin of Late Cretaceous phosphoritein Duwi Formation (Geble Duwi Mine), Red Sea region, Egypt', Egyptian Journal of Petroleumhttp://www.sciencedirect.com/science/article/pii/S1110062115301094. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
The authigenic clay mineral fills in the pores.
Zhen-kui JIN, Chun-hui LIU 2008, 'Quantitative study on reservoir diagenesis in Northern Dagang Structural Belt, HuanghuaDepression', Petroleum Exploration and Developmenthttp://www.sciencedirect.com/science/article/pii/S1876380409600902. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
In contrast, the formation of pore-filling authigenic illite and illite/smectite clays reduced its permeability.
Munawar Muhammad Jawad, Lin Chengyan, Chunmei Dong, Zhang Xianguo, Zhao Haiyan, XiaoShuming, Azeem Tahir, Zahid Muhammad Aleem, Ma Cunfei 2018, 'Architecture and reservoir quality of low-permeable Eocene lacustrine turbidite sandstonefrom the Dongying Depression, East China', Open Geoscienceshttp://www.degruyter.com/view/j/geo.2018.10.issue-1/geo-2018-0008/geo-2018-0008.xml?format=INT. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
It promotes the formation of authigenic microcrystalline quartz and improves the brittleness of shale.
Honglin Liu, Wei Guo, Dexun Liu, Shangwen Zhou, Jixin Deng 2018, 'Authigenic embrittlement of marine shale in the process of diagenesis', Natural Gas Industry Bhttp://www.sciencedirect.com/science/article/pii/S2352854018301189. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
The clay minerals are of authigenic and detrital origins.
James C. Hower, Cortland F. Eble, Jennifer M. K. O'Keefe, Shifeng Dai, Peipei Wang,Panpan Xie, Jingjing Liu, Colin R. Ward, David French 2015, 'Petrology, Palynology, and Geochemistry of Gray Hawk Coal (Early Pennsylvanian, Langsettian)in Eastern Kentucky, USA', Mineralshttp://www.mdpi.com/2075-163X/5/3/0511. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Specimens are composed of authigenic calcite and pyrite crystals about 5–10 µm in length.
John A. Chamberlain, Rebecca B. Chamberlain, James O. Brown 2016, 'A Mineralized Alga and Acritarch Dominated Microbiota from the Tully Formation (Givetian)of Pennsylvania, USA', Geoscienceshttp://www.mdpi.com/2076-3263/6/4/57. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)