(of minerals) predominantly composed of feldspars or silicates
Examples of 'felsic' in a sentence
felsic
Dominant detrital quartz and feldspar grains of the sandstones suggest predominantly felsic sources.
Bai-Qiu Wang, Wei Wang, Mei-Fu Zhou 2013, 'Provenance and tectonic setting of the Triassic Yidun Group, the Yidun Terrane, Tibet',Geoscience Frontiershttp://www.sciencedirect.com/science/article/pii/S1674987113000352. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Magma mixing structures indicate co-existence of mafic and felsic end-members.
MÁRCIO M. PIMENTEL, ELTON L. DANTAS, REINHARDT A. FUCK, RICHARD A. ARMSTRONG 2003, 'Shrimp and conventional U-Pb age, Sm-Nd isotopic characteristics and tectonic significanceof the K-rich Itapuranga suite in Goiás, Central Brazil', Anais da Academia Brasileira de Ciênciashttp://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652003000100011. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Magmatic zircons from a felsic high-grade rock provide ages of ca.
T. Mutanen, H. Huhma 2003, 'The 3.5 Ga Siurua trondhjemite gneiss in the Archaean Pudasjärvi Granulite Belt, northernFinland', Bulletin of the Geological Society of Finlandhttp://www.geologinenseura.fi/bulletin/Volume75/MutanenHuhma.pdf. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Felsic plutonic detritus was derived from either subvolcanic plutons or from an unlocated basement complex.
R.W. Ojakangas 1986, 'An early Proterozoic metagreywacke-slate turbidite sequence: The Tampere schist belt,southwestern Finland', Bulletin of the Geological Society of Finlandhttp://www.geologinenseura.fi/bulletin/Volume58/sgs_bt_058_1_pages_241_261.pdf. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Injections of mafic magma invaded the felsic chamber and those magmas interacted mainly by intermingling.
T.T. Eerola 2002, 'Mafic-silicic magma interaction in the layered 1.87 Ga Soukkio Complex in Mäntsälä,southern Finland', Bulletin of the Geological Society of Finlandhttp://www.geologinenseura.fi/bulletin/Volume74/Eerola.pdf. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
This variation in strain correlates with variation in rock composition; felsic metavolcanics demonstrate consistently lower strain intensities than mafic ones.
H. Stel, D. Van Rees, B. Schenke 1999, 'Strain analysis in the Orijärvi triangle, southwestern Finland; in perspective oftectonic models', Bulletin of the Geological Society of Finlandhttp://www.geologinenseura.fi/bulletin/Volume71/sgs_bt_071_2_pages_329_337.pdf. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Based on their major and trace element compositions, the tuffaceous- and sandy-slates were sourced from a felsicigneous provenance.
Hinyuen Tsang, Jingya Cao, Xiaoyong Yang 2019, 'Source of the Chaoyangzhai Gold Deposit, Southeast Guizhou: Constraints from LA-ICP-MSZircon U–Pb Dating, Whole-rock Geochemistry and In Situ Sulfur Isotopes', Mineralshttps://www.mdpi.com/2075-163X/9/4/235. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Infiltration modes of felsic melts are likely controlled by the temperature condition of the cooling host gabbros.
Du Khac Nguyen, Tomoaki Morishita, Yusuke Soda, Akihiro Tamura, Biswajit Ghosh, YumikoHarigane, Lydéric France, Chuanzhou Liu, James H. Natland, Alessio Sanfilippo, ChristopherJ. MacLeod, Peter Blum, Henry J. B. Dick 2018, 'Occurrence of Felsic Rocks in Oceanic Gabbros from IODP Hole U1473A: Implicationsfor Evolved Melt Migration in the Lower Oceanic Crust', Mineralshttps://www.mdpi.com/2075-163X/8/12/583. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
We speculate that the upper crust was composed of fractionated gabbros and the middle felsic crust by anorthosite at ca.
M. Santosh, T. Arai, S. Maruyama 2017, 'Hadean Earth and primordial continents: The cradle of prebiotic life', Geoscience Frontiershttp://www.sciencedirect.com/science/article/pii/S1674987116300834. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
It suggests that most of the crust along the profile lacks mafic component, but contains more felsic substance.
Zhanyong Gao, Yanna Zhao, Xiaoguo Deng, Yudong Yang 2018, 'Crustal structure along the Zhenkang–Luxi deep seismic sounding profile in Yunnanderived from receiver functions', Geodesy and Geodynamicshttp://www.sciencedirect.com/science/article/pii/S167498471730099X. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)