Results 61 to 70 of about 1,895 (220)

Rapid Slab Rollback Drives Early Cretaceous Back‐Arc Extension in NE China: Implication for Crustal Growth and Episodic Porphyry Mineralization

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 3, March 2026.
Abstract The subduction of the Paleo‐Pacific Plate beneath the NE Asian continental margin induced extensive magmatism, providing an excellent opportunity to investigate the interplay between plate dynamics, arc magmatism, continental crust formation, and porphyry mineralization.
Honghui Wang, Xinghua Ma, Simon A. Wilde, Yong Lai, Zhenhua Zhou, Jinyu Yan   +5 more
wiley   +1 more source

The Paleo‐Tethys Suture Zone in the Afghan Hindu Kush‒Pamir: Geo‐Thermochronology, Geochemistry, Tectonics

Tectonics, Volume 45, Issue 3, March 2026.
Abstract In the Afghan Hindu Kush, the 223–209 Ma (≤800°C) Salang batholith is part of the Silk‐Road magmatic arc that was built on ∼40‐km‐thick Turan‐Karakum block continental crust. The batholith constitutes the hanging wall of the Herat‐Panjshir‐Badakhshan—the Paleo‐Tethys—suture zone, vestige of the subducted Paleozoic‐early Mesozoic Paleo‐Tethys ...
Lothar Ratschbacher, Said Amin Hashimy, Hasan Malistani, Yasuhito Osanai, Jianhua Li, Zhao Yang, Bradley R. Hacker, Leander Franz, Hadi Karimi   +8 more
wiley   +1 more source

Assessing Pb Isotopic Equilibrium Between Apatite and K‐Feldspar

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 2, February 2026.
Abstract Quantifying common Pb, the non‐radiogenic Pb present in a mineral independent of in situ U decay, is essential for obtaining accurate U–Pb ages in common Pb‐bearing minerals such as apatite. However, constraining the amount and composition of common Pb, as well as the timing of its entrapment, remains a persistent challenge.
Priyanjan Datta, Christopher L. Kirkland, Janne Liebmann, Hugo K. H. Olierook   +3 more
wiley   +1 more source

Rare-earth and rare-metal mineralization in late granite of Syrostan massif (Southern Urals)

Литосфера, 2015
The article provides a complete list of Syrostan massif minerals, which includes 47 mineral species. It is shown that the rare-metal and rare-earth mineralization is confined to the late vein facies - granite dykes and pegmatites.
E. P. Makagonov, V. A. Muftahov
doaj   +2 more sources

P‐T‐t‐d Evolution of Low‐Grade Metamorphic Xenotime, Eastern Alps (Austria)

Terra Nova, Volume 38, Issue 1, Page 65-76, February 2026.
ABSTRACT In situ LA‐ICP‐MS U‐Pb dating of xenotime was used to establish the age of low‐grade metamorphism in Permian metasediments of the Austroalpine Unit (Eastern Alps, Austria). Complexly zoned xenotime in chloritoid‐bearing metasedimentary samples possesses distinct MREE‐rich domains. In the eastern sample, this domain yielded a date of c. 135 Ma,
M. S. Hollinetz, B. Huet, C. R. M. McFarlane, D. A. Schneider, B. Grasemann   +4 more
wiley   +1 more source

Report on field examination of allanite deposits, Natrona County, Wyoming

, 1948
Report on field examination of allanite deposits, Natrona County ...
R.T. Russell (10070965), G.W. Devore (10070968)   +1 more
core   +1 more source

Subduction and Extrusion of an Ultra‐High Pressure Oceanic Plate Interface (Lower Shear Zone, Monviso Massif, Western Alps)

Tectonics, Volume 45, Issue 1, January 2026.
Abstract The Lower Shear Zone (LSZ) of the Monviso Massif (Western Alps) constitutes a block‐in‐matrix remnant of the subduction plate interface, now tectonically emplaced into the Western Alpine orogenic belt. Here, we combine observations from cartographic to microscopic scales, focusing on garnet‐bearing lithologies in both the mafic blocks and the ...
Emanuele Scaramuzzo, Michele Locatelli, Alessia Borghini, Federica Boero, Mattia Gilio, Franz Livio, Marco Bruno, Marco Scambelluri, Stefano Ghignone   +8 more
wiley   +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

REE Zoning in Allanite Related to Changing Partition Coefficients During Crystallization: Implications for REE Behaviour in an Epidote-Bearing Tonalite [PDF]

, 2006
Allanite is present in most samples of the tonalitic Bell Island Pluton, with an average mode near 0.05 wt.%. Allanite occurs as cores in igneous epidote-clinozoisite and exhibits characteristic and consistent zoning patterns.
Gieré, Reto, Sorensen, S S, Beard, J S
core   +1 more source

Allanite U–Pb step-leaching ages of metapelites in the Imjingang belt, central Korea

Journal of Analytical Science and Technology
Background Allanite is a LREE-rich epidote-group mineral, and a potential chronometer for the greenschist-facies metamorphism. However, owing to the metamict nature of allanite, it is extremely difficult to secure sufficient amounts of mineral separates ...
Seunghee Han, Yoonsup Kim, Taehoon Kim, Mi Jung Lee   +3 more
doaj   +1 more source