Results 61 to 70 of about 2,658 (209)

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

Micro-structural and compositional variations of hydrothermal epidote-group minerals from a peralkaline granite, Corupá Pluton, Graciosa Province, South Brazil, and their petrological implications

Anais da Academia Brasileira de Ciências, 2012
Epidote-group minerals, together with albite, quartz, fluorite, Al-poor and Fe-rich phyllosilicates, zircon, and minor oxides and sulphides, are typical hydrothermal phases in peralkaline alkali-feldspar granites from the Corupá Pluton, Graciosa Province,
Silvio R.F. Vlach
doaj  

Inferences on the Mesozoic evolution of the North Aegean from the isotopic record of the Chalkidiki block [PDF]

, 2016
International audienceThe Chalkidiki block is a major domain in the North Aegean that, contrary to other domains in the region, largely escaped thermal perturbations during Tertiary extension.
Brun, Jean-Pierre, Chatzitheodoridis, Elias, Kydonakis, Konstantinos, Monie, Patrick, Poujol, Marc   +4 more
core   +2 more sources

Occurrence and Geochemistry of REE Minerals From the Western Part of the Lugiin Gol Carbonatite Deposit, Southeast Mongolia

Resource Geology, Volume 76, Issue 1, January/December 2026.
The western Lugiin Gol REE deposit, related to the Lugiin Gol alkali intrusive complex, consists of carbonatites filling NE‐trending fractures in sedimentary rock. The carbonatites are dominated by carbonate minerals and fluorite and host REE fluorocarbonates, including synchysite‐(Ce), bastnaesite‐(Ce), parisite‐(Ce), and synchysite–bastnaesite ...
Bong Chul Yoo, Sang‐Mo Koh, Otgon‐Erdene Davaasuren, Naidansuren Tungalag, Bum Han Lee, Sodnom Oyungerel   +5 more
wiley   +1 more source

Geochemistry of mylonitic tourmaline-bearing granite- gneiss pluton in the northeast of June mine

Journal of Economic Geology, 2017
Introduction Studied mylonitic granite-gneiss body is located in the Northwest of the Azna region in the Lorestan province close to the June dimension stone mine.
Arezoo Moradi, Nahid Shabanian Boroujeni , Ali Reza Davoudian Dehkordy   +2 more
doaj   +1 more source

Gold Mineralizing Potential of the Late Triassic Calcareous, Carbonaceous and Sulfide‐Rich Sedimentary Rocks of the Isatomae Formation in the South Kitakami Belt, Japan

Resource Geology, Volume 76, Issue 1, January/December 2026.
Isatomae Formation illustrating mineralogical and geochemical characteristics. (a) Overview of the Isatomae Formation, showing the marine anoxic environment and related biogenic processes. (b) Deposition of metal‐rich Fe oxyhydroxides were transformed into sulfides through diagenesis and low grade metamorphism.
June Born Born, Yasushi Watanabe, Takuya Echigo, Yoshiaki Kon, Takumi Mimura   +4 more
wiley   +1 more source

Lithological mapping and spectroscopic studies of carbonatite and clinopyroxenite from Hogenakkal carbonatite complex, India

Applied Computing and Geosciences
The Paleoproterozoic Hogenakkal carbonatite complex, situated within the Mettur shear zone, Southern Granulite Terrain, Tamil Nadu, India, is known for its enigmatic carbonatite-clinopyroxenite association and lithology specific rare earth elements (REE)
Saraah Imran, Sourav Bhattacharjee, Ajanta Goswami, Aniket Chakrabarty   +3 more
doaj   +1 more source

Jadeitite from Guatemala : new observations and distinctions among multiple occurrences [PDF]

, 2011
In Guatemala, jadeitite occurs as blocks in serpentinite mélange in distinct settings on opposite sides of the Motagua fault. Jadeitites north of the Motagua fault are associated with eclogites, blueschists, and garnet amphibolites and distributed over a
Harlow, G.E., Sisson, V. B., Sorensen, S.S.   +2 more
core   +3 more sources

Can Multiphase Inclusions in Garnet From Eclogite Facies Rocks Be a Product of Melt or Supercritical Fluid Entrapment During Subduction?

Journal of Metamorphic Geology, Volume 43, Issue 9, Page 891-908, December 2025.
ABSTRACT Dehydration of rocks and minerals during high‐pressure metamorphism is controlled by the thermal structure of the subduction zone and can be traced by the stability fields of hydrous phases. Consistent with the results of experimental works, the content of silicate components in fluids is assumed to increase from the fields of subcritical to ...
Shah Wali Faryad
wiley   +1 more source

ALLANITE-(Nd) FROM SAPFIRINOVAYA PIT, SOUTHERN URALS: FIRST FIND IN RUSSIA [PDF]

Минералогия, 2019
Allanite-(Nd) (Ca1.20Mn0.02Nd0.33Ce0.21Sm0.07Pr0.06La0.03Gd0.02Y0.01)Σ1.95(Al1.94Fe2+ 0.46Fe3+ 0.42Mg0.08Sc0 .06Ti0.01)Σ2.97[Si2 O7 ][SiO4 ]O(OH) was found first in Russia as black crystals and grains up to 0.12 mm in size in a sapphirine-bearing rock of
A.V. Kasatkin, R. Škoda, A.M. Kuznetsov
doaj