Results 51 to 60 of about 180 (171)

Chemical Discrimination of Rutile From Different Metamorphic Source Rocks: Dealing With Hierarchical Data Structures in Random Forest Classification

Journal of Metamorphic Geology, Volume 44, Issue 2, Page 112-137, February 2026.
ABSTRACT Rutile provides a wealth of petrochronological information in metamorphic geology and due to its high stability during processes of the sedimentary cycle, rutile takes a special position in sedimentary provenance analysis. Besides being one of the classical minerals datable using the U–Pb system, rutile incorporates a broad range of trace ...
Jan Schönig, Thomas Zack, Delia Rösel, Raimon Tolosana‐Delgado, Horst Marschall, Hilmar von Eynatten, Nils Keno Lünsdorf, Mona Lueder, Matthias Konrad‐Schmolke, Jesse B. Walters   +9 more
wiley   +1 more source

Location, Location, Location: Monazite Behaviour During UHT Metamorphism and Melt Crystallization

Journal of Metamorphic Geology, Volume 44, Issue 2, Page 158-175, February 2026.
ABSTRACT Monazite is a robust mineral for recording the suprasolidus evolution of migmatites and granulites. However, monazite commonly has diverse compositions and yields variable dates in a single sample; understanding the controls on monazite behaviour and composition during partial melting and melt crystallization are not always straightforward ...
Chris Yakymchuk, Jessica Gareau, Michael Williams   +2 more
wiley   +1 more source

Genesis of the gneissic biotite granite in Lanhe, northern Guangdong: Constraints from zircon U–Pb geochronology, Hf isotopes, and geochemistry

Dizhi lixue xuebao
Objective  The Lanhe pluton in northern Guangdong is located at the southeastern margin of the Zhuguangshan Complex and is primarily composed of gneissic biotite granite; its petrogenesis has not yet been determined.
WANG Haiyang, ZHONG Fujun, PAN Jiayong, XIA Fei, CHEN Zhengle, LI Wenli, LIU Jungang, SUN Yue, YAN Jie, QI Jiaming   +9 more
doaj   +1 more source

P–T conditions of metapelites from metamorphic complexes in Aysen, Chile

Journal of South American Earth Sciences, 2005
Pressure and temperature metamorphic conditions were determined for K-white mica and chlorite in metapelites from the eastern Andean metamorphic complex (EAMC) and from the Chonos metamorphic complex (CMC) of southern Chile. The Kubler index (KI) of K-white micas was measured on a
RAMIREZ SANCHEZ E., HERVE F., KELM U., SASSI, RAFFAELE   +3 more
openaire   +4 more sources

Interpreting Europium Anomalies in Zircon: The Importance of Source Redox

Geochemistry, Geophysics, Geosystems
The sources of granitoids are variably oxidized due to the diversity of environments in which they form. This environmental and consequent chemical variability leads to differences in mineral assemblages, proportions, and compositions of ferric and ...
Chris Yakymchuk, Christopher L. Kirkland
doaj   +1 more source

Passive margins in accreting Archaean archipelagos signal continental stability promoting early atmospheric oxygen rise. [PDF]

Nat Commun, 2022
Peng Y, Kusky T, Wang L, Luan Z, Wang C, Liu X, Zhong Y, Evans NJ.   +7 more
europepmc   +1 more source

Multistage Neoproterozoic granitic magmatism and formation of Yidong tin deposit in northern Guangxi, China

Solid Earth Sciences
A Neoproterozoic tin ore cluster, which is rare for South China, has been discovered in northern Guangxi. The Neoproterozoic granite pluton was formed through multistage magmatism.
Weikang Liang, Jing Wu, Wenting Huang, Zehao Yang, Yukun Zhao, Feiyue Ren, Huaying Liang   +6 more
doaj   +1 more source

A likely geological record of deep tremor and slow slip events from a subducted continental broken formation. [PDF]

Sci Rep, 2022
Giuntoli F, Viola G.
europepmc   +1 more source

Geology and geochronology of the Magdalena-Madera metamorphic core complex lower plate in the sierras Las Jarillas-El Potrero, northern Sonora

Revista Mexicana de Ciencias Geológicas
The area of sierras Las Jarillas-El Potrero in northern Sonora is interpreted as a portion of the lower plate of the Magdalena metamorphic core complex. Rock units that characterize this locality range in age from Jurassic to Eocene.
Teresita Sánchez Navarro, Michelle Vázquez Salazar, Carlos M. González-León, Luigi A. Solari, Anne E. Egger, Teresa Orozco-Esquivel, Margarita López-Martínez, Jonathan A. Nourse, Ofelia Pérez Arvizu, Rufino Lozano-Santacruz   +9 more
doaj   +1 more source

PETROGENESIS OF THE METACARBONATE AND RELATED ROCKS OF THE SILGARÁ FORMATION, CENTRAL SANTANDER MASSIF, COLOMBIAN ANDES: AN OVERVIEW OF A “REACTION CALCIC EXOSCARN”

Earth Sciences Research Journal, 2008
Metacarbonate rocks (pure and impure marbles, carbonate-silicate rocks, calc-silicate rocks and carbonate-bearing silicate rocks) form a very complex group within the metamorphic sequence of the Silgará Formation at the central Santander Massif (CSM ...
Castellanos O.M, Gómez S.I., Ríos C.A., Ávila G.A.   +3 more
doaj