Results 41 to 50 of about 1,691 (151)

Protracted High‐Grade Metamorphism and Slow Cooling in the Adirondacks Recalibrate Neoproterozoic Global Paleogeography

Tectonics, Volume 45, Issue 6, June 2026.
Abstract The assembly and breakup of the supercontinent Rodinia set the stage for Earth system evolution through the Neoproterozoic Era. Laurentia, the central craton in Rodinia, lacks well‐dated paleomagnetic poles between ca. 990 Ma and 780 Ma. In this study, we develop new U‐Pb petrochronology and thermochronology data sets from zircon, garnet ...
Yiming Zhang, Eben Blake Hodgin, Mark D. Schmitz, Darin M. Schwartz, Michael T. Mohr, James L. Crowley, Nicholas L. Swanson‐Hysell   +6 more
wiley   +1 more source

Twenty new species of Hieracium sect. Tridentata and H. sect. Foliosa (Asteraceae) from Sweden

Nordic Journal of Botany, Volume 2026, Issue 5, May 2026.
Nineteen new, presumably apomictic species of Hieracium sect. Tridentata, namely Hieracium anisodontum, H. bicoloriceps, H. disparifolium, H. ditrichum, H. erectifolium, H. ferox , H. lapsanae, H. luteoviride, H. megaplicatum, H. multifolium, H. paer‐haraldii, H. perpendiculum, H. phaeochlorum, H. prasiniceps, H. semirigidum, H.
Tommy Nilsson, Torbjörn Tyler
wiley   +1 more source

Geochemistry and origin of skarns of the Bohemian Massif [PDF]

, 2013
Calcic-iron skarns are one of the characteristic part of the regional metamorphic complexes of the Bohemian Massif. Their mineral assemblages, structures and significant enrichment of Ca, Al and Fe were previously interpreted to be primary (exhalation ...
Bubal, Jan
core  

KNaCaSi4O10 Obtained From Crystallization Experiments in the Quaternary System K2O–Na2O–CaO–SiO2

Journal of the American Ceramic Society, Volume 109, Issue 3, March 2026.
The compound KNaCaSi4O10 has been identified in crystallization experiments of glasses in the quaternary system K2O–Na2O–CaO–SiO2 and has undergone structural characterization. Vibrational spectroscopic data have been acquired and interpreted using density functional theory (DFT) calculations.
Volker Kahlenberg, Eugen Libowitzky, Thomas S. Hofer   +2 more
wiley   +1 more source

The role of porphyry-related skarns in the Chating porphyry copper and gold deposit, eastern China

, 2021
The Chating deposit is a porphyry copper deposit in the Middle Lower Yangtze River Valley Metallogenic Belt, with skarns found in both the carbonate wall rock and in carbonate xenoliths in the intrusions.
Peter Hollings (14739337), Noel White (14752681), Wang, SW (15749753), Zhou, T (15522989), Liu, J (15514130), Fu, B (15556739), Yuan, F (15518216), Xiao, Q (15749750)   +7 more
core   +2 more sources

Quantifying Vein Network Permeability in Dehydrated Serpentinites Using Thermodynamics and Generative AI

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 2, February 2026.
Abstract Fluids released from subducting hydrated rocks influence volcanism, tectonics, and geochemical cycling, but the mechanisms of fluid escape in subduction zones remain poorly understood. We address this issue by investigating the Erro‐Tobbio meta‐serpentinites (ET‐MS), Italy, exhumed serpentinite rocks that preserve extensive dehydration vein ...
Austin Arias, Lisa Eberhard, Andreas Beinlich, Timm John, Alissa Kotowski, Oliver Plümper   +5 more
wiley   +1 more source

Rare Earth Elements in Plants of the Peak Range Volcanics (Queensland), Australia Exploration Target: A Biogeochemical Prospecting Tool

Ecological Research, Volume 41, Issue 1, January 2026.
The Peak Range Volcanics in central Queensland, Australia is naturally enriched with REEs (Rare Earth Elements). Fieldwork was conducted to analyse REEs in plant species occurring in this area. ABSTRACT Rare Earth Elements (REEs) are critical for high‐tech technologies in the green energy transition.
Amelia Corzo‐Remigio, Philip Nti Nkrumah, Peter D. Erskine, Antony van der Ent   +3 more
wiley   +1 more source

Etude des alternances récurrentes dans les skarns et des instabilités du front de dissolution/précipitation [PDF]

, 1993
This thesis discusses the development under metamorphic conditions of banded skarns and oscillatory precipitation by metasomatism. Two types of banded skarns are described at Rio Marina (Elba, Italy), the first one is composed of light pyroxene ...
Jiang, Chongjun
core   +1 more source

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

Rare-earth mineralization in ores of the Gurvunur apatite-magnetite deposit (Ozerny ore cluster, Western Transbaikalia)

Руды и металлы
The Gurvunur apatite-magnetite deposit is located within the Ozerny ore cluster in Western Transbaikalia. A peculiarity of this object is the presence of rare-earth mineralization in the ores. The main REE concentrator minerals include monazite, allanite,
Izvekova A. D., Damdinov B. B., Rampilov M. O.   +2 more
doaj   +1 more source