Results 81 to 90 of about 2,580,597 (193)

Why allanite may swindle about its true age

, 2003
Allanite from the Tertiary Rieserferner pluton (Austrian Alps) is texturally and chemically heterogeneous. Continuous covariation trends reflect coupled substitution of Ca+Al vs.
Siegesmund, Siegfried, Romer, Rolf L.
core   +1 more source

Ultrahigh‐Temperature Metamorphism and Near‐Isobaric Cooling of Garnet‐Orthopyroxene Granulite Xenoliths in the Sancheong Anorthosite, Yeongnam Massif, Korea

Journal of Metamorphic Geology, Volume 44, Issue 1, Page 20-46, January 2026.
ABSTRACT Elevated heat flow associated with mafic magmatism in accretionary orogens has often been proposed as a driving mechanism for (ultra)high‐temperature (UHT) metamorphism and anatexis. The Sancheong–Hadong complex, located in the southern Yeongnam Massif, Korea, consists of a ca.
Yuyoung Lee, Moonsup Cho, Jeongmin Kim, Youn‐Joong Jeong   +3 more
wiley   +1 more source

Studies on South Indian radioactive minerals II. Allanite from Madura

, 1953
Allanite, a cerium-bearing epidote occurring in the pegmatites of Kavarkattumalai, Madura District, has been studied in detail. The investigations comprise the determination of physical and optical characters, chemical composition, mineral formula, and ...
Aswathanarayana, U.
core   +1 more source

Thermal Annealing of Radiation-Damaged allanite-(Ce): Mechanical and Structural Properties [PDF]

Goldschmidt Abstracts, 2020
Claudia E. Reissner, Michael Reissner, Ulrich Bismayer, Alexandra Navrotsky, Carsten Paulmann, Herbert Pöllmann, Tobias Beirau   +6 more
openaire   +1 more source

The formation and alteration of allanite in skarn from the Beinn an Dubhaich granite aureole, Skye

, 2002
Allanite-(Ce) occurs as a metasomatic phase in diopside-hedenbergite-anorthite-hastingsite endoskarn from the Beinn an Dubhaich granite aureole, Skye. Fluid-inclusion studies indicate formation of pyroxene at temperatures in the range 600-700oC from Na-K-
Jeffries, Teresa, Smith, Martin; id_orcid, Henderson, Paul   +2 more
core  

Francoisite-(Ce), a new mineral species from La Creusaz uranium deposit (Valais, Switzerland) and from Radium Ridge (Flinders Ranges, South Australia): Description and genesis

, 2010
The new mineral françoisite-(Ce), (Ce,Nd,Ca)[(UO2)3O(OH)(PO4)2]•6H2O is the Ce-analog of françoisite-(Nd). It has been discovered simultaneously at the La Creusaz uranium deposit near Les Marécottes in Valais, Switzerland, and at the Number 2 uranium ...
P. Thelin, Ansermet, S., N. Meisser, Bussy, F., J. Brugger, Brugger, J., F. Bussy, S. Ansermet, Meisser, N., Thelin, P.   +9 more
core   +1 more source

Apatite-hosted REE mineralization in the Eastern Ghats Mobile Belt: A future prospect for REE

Geosystems and Geoenvironment
The growing need of rare earth elements in different sectors of the modern-day world has led to their increasing demand, which is in accordance with their limited supply.
Mousumi Bhattacharjee, Kallola Kumar Behera, Smaranika Priyadarsini Swain   +2 more
doaj   +1 more source

Mechanische und strukturelle Eigenschaften strahlengeschädigter Minerale und der Effekt thermisch induzierter Rekristallisation am Beispiel von Allanit-(Ce), Åskagenit-(Nd) und Pyrochlor

, 2021
In dieser Arbeit wurden drei verschiedene Minerale untersucht, Allanit-(Ce), Åskagenit-(Nd) und Pyrochlor. Alle Proben waren natürlicher Herkunft und hatten Th oder U eingebaut. Alle Proben wurden schrittweise thermisch behandelt und somit ihre strukturelle Ordnung wieder hergestellt.
openaire   +2 more sources

SHRIMP allanite U-Th-Pb dating of bimodal Triassic metamorphism of Neoarchean tonalitic gneisses, Daeijak Island, central Korea

, 2016
The microstructures, compositions and U-Th-Pb ages of allanite from tonalitic gneisses in a Neoarchean migmatite complex, Daeijak Island, central Korea, have been investigated. Allanite crystals up to ∼300 μm in diameter occur with accessory apatite,
Lee, Yuyoung, Cheong, Chang-Sik, Williams, Ian, Kim, Yoonsup   +3 more
core   +1 more source

Geochronology of accessory allanite and monazite in the Barrovian metamorphic sequence of the Central Alps, Switzerland [PDF]

, 2017
The formation of accessory allanite, monazite and rutile in amphibolite-facies rocks across the Barrovian sequence of the Central Alps (Switzerland) was investigated with a combination of petrography and geochemistry and related to the known structural ...
Amelin, Yuri, Daniela Rubatto, Boston, Kate R., Martin Engi, Hermann, Jörg, Jörg Hermann, Rubatto, Daniela, Kate R. Boston, Engi, Martin, Yuri Amelin   +9 more
core   +3 more sources