Results 141 to 150 of about 26,623 (334)

Distribution of Trace Elements in K-Feldspar with Implications for Tracing Ore-Forming Processes in Pegmatites: Examples from the World-Class Kolmozero Lithium Deposit, NW Russia [PDF]

, 2022
Lyudmila N. Morozova, Dmitry Zozulya, Ekaterina A. Selivanova, Pavel Serov, Aya V. Bazai   +4 more
openalex   +1 more source

Vertical profiling of shock attenuation at the Rochechouart impact structure, France

Meteoritics &Planetary Science, EarlyView.
Abstract Rochechouart, south‐west France, is a complex impact structure. Here, we present the first report of shock barometry of quartz from what are likely parautochthonous basement units at depth, based on samples from the 2017 C.I.R.I.R drilling campaign. The crystallographic orientations of 725 sets of PDFs in 512 quartz grains in samples from four
P. Struzynska, S. Alwmark, C. Alwmark, M. H. Poelchau, P. Lambert   +4 more
wiley   +1 more source

Early Paleozoic orogenic collapse, tectonic stability, and late Paleozoic continental rifting revealed through thermochronology of K‐feldspars, southern Norway [PDF]

, 1998
W. J. Dunlap, Haakon Fossen
openalex   +1 more source

Shock metamorphic effects in Itokawa phosphates: A comparison with megaregolith‐derived meteorites

Meteoritics &Planetary Science, EarlyView.
Abstract Returned regolith samples from the asteroid Itokawa provide a unique opportunity to compare shock metamorphic effects in unconsolidated regolith materials with those preserved in lithified meteorites, that is, megaregolith. We analyzed four Itokawa particles (Ueda—RA‐QD02‐0519, Narahara—RA‐QD02‐0573, Domon—RA‐QD02‐0588, Ishiuchi—RX‐MD03‐0212 ...
E. Dobrică, A. N. Krot, A. J. Brearley
wiley   +1 more source

Early Jurassic A-type granite and monzodiorite from the Baoji batholith: Implication for tectonic transition from post-collision to post-orogenic extension in the Qinling Orogenic Belt, China

Frontiers in Earth Science
Introduction: The early Jurassic granitoids in the Qinling Orogenic Belt (QOB) play a crucial role in understanding the tectonic implications for the geological evolution of China.
Xiangkuan Gong, Nijiati Abuduxun, Xiaoliang Jia, Yuanfeng Cheng, Hongming Cai, Xueqian Wu, Haodong Yang   +6 more
doaj   +1 more source

Microchemical and Sr Isotopic Investigation of Zoned K-feldspar Megacrysts: Insights into the Petrogenesis of a Granitic System and Disequilibrium Crystal Growth [PDF]

, 2005
D. Gagnevin, J. Stephen Daly, Guido Poli, D. J. Morgan   +3 more
openalex   +1 more source

Typomorphism of perthitic intergrowth of feldspars from granitic pegmatites from the area of west Azov (Ukrainian shield) [PDF]

, 2014
Приведены данные о вещественном составе графических пегматитов с различной специализацией кварца и отмечено широкое развитие пертитовых вростков в полевых шпатах.
Slivnaya, E. V., Сливная, О. В., Сливная, Олена Василівна   +2 more
core  

X‐ray computed tomography study of terrestrial analog cores in preparation for Mars sample return

Meteoritics &Planetary Science, EarlyView.
Abstract Mars Sample Return (MSR) is expected to transform planetary science by providing unprecedented access to pristine Martian material. Initial characterization in the sample receiving facility (SRF) will rely on nondestructive techniques such as X‐ray computed tomography (XCT) to document the condition, distribution, and internal features of ...
Sophie Benaroya, Christopher D. K. Herd, David T. Flannery, Nicolas Randazzo   +3 more
wiley   +1 more source

K-Ar ages of detrital K-feldspars and muscovites from the Shimanto Supergroup in east Kyushu and west Shikoku, Southewest Japan.

, 1994
Yoji Teraoka, Ken Shibata, Kimio Okumura, Shigeru Uchiumi   +3 more
openalex   +2 more sources

Combining universal‐stage, backscatter electron imaging and electron backscatter diffraction for improved indexing of planar microstructures in quartz and plagioclase

Meteoritics &Planetary Science, EarlyView.
Abstract Quartz and feldspar commonly develop planar microstructures due to shock metamorphism. These are generally investigated and indexed (identifying the crystallographic orientation along which they developed) using a universal stage (U‐stage) on a petrographic microscope.
Lidia Pittarello, Thomas Griffiths, Gerlinde Habler   +2 more
wiley   +1 more source