Results 61 to 70 of about 3,307 (182)

Fractional crystallization of high-K arc magmas: biotite- versus amphibole-dominated fractionation series in the Dariv Igneous Complex, Western Mongolia [PDF]

, 2014
Many studies have documented hydrous fractionation of calc-alkaline basalts producing tonalitic, granodioritic, and granitic melts, but the origin of more alkaline arc sequences dominated by high-K monzonitic suites has not been thoroughly investigated ...
Bucholz, Claire E., Jagoutz, Oliver, Sambuu, Oyungerel, Schmidt, Max W.   +3 more
core   +2 more sources

Timing of Mylonitization Based on Zircon U–Pb Ages of the Ryoke Plutonic Rocks in the Akaiwadani and Taraki Areas, Eastern Kii Peninsula, Southwest Japan: Implications for Uplifting of a Late Cretaceous Volcanic Arc on the Asian Continental Margin

Island Arc, Volume 34, Issue 1, January/December 2025.
ABSTRACT The timing of mylonitization of the Ryoke Plutonic Rocks in the Tsukide area, eastern Kii Peninsula, Southwest Japan, which is part of a Late Cretaceous volcanic arc on the Asian continental margin, was investigated based on geological relationships and zircon U–Pb dating.
Makoto Takeuchi, Sakurako Yabuta, Qi Li, Yoshihiro Asahara   +3 more
wiley   +1 more source

Occurrence and compositions of post-metamorphic alkali ～ highly potassic dykes intruded into metamorphic rocks on Lützow-Holm Complex, East Antarctica [PDF]

, 2016
第2回極域科学シンポジウム/第31回極域地学シンポジウム 11月17日（木） 国立極地研究所 ...
D.J.Du nkley, J. Dunkley Daniel, Kato Mutsumi, Miyamoto Tomoharu, Tsunogae Toshiaki, 加藤 睦実, 宮本 知治, 角替 敏昭   +7 more
core   +1 more source

The effect of F on the density of haplogranite melt [PDF]

, 1993
The densities and thermal expansivities of F-bearing haplogranitic glasses and liquids have been investigated using a combination of scanning calorimetry and dilatometry. F2O-1 reduces the density of haplogranitic liquids (at 750 °C) from 2.295 + 0.006 g/
Dingwell, Donald B., Knoche, Ruth, Webb, Sharon L.   +2 more
core   +1 more source

Electrochemical recycling of lithium‐ion batteries: Advancements and future directions

EcoMat, Volume 6, Issue 11, November 2024.
This review examines lithium‐ion batteries associated with the global energy transition, particularly for use in electric vehicles and renewable energy‐storage systems. It addresses environmental concerns and resource scarcity, emphasizing the need for sustainable recycling strategies. Various recycling methods, in particular electrochemical techniques,
Stefanie Arnold, Jean G. A. Ruthes, Choonsoo Kim, Volker Presser   +3 more
wiley   +1 more source

Magmatic evolution of topaz-bearing granite stocks within the Wiborg rapakivi granite batholith [PDF]

, 2007
This study brings new insights into the magmatic evolution of natural F-enriched peraluminous granitic systems. The Artjärvi, Sääskjärvi and Kymi granite stocks within the 1.64 Ga Wiborg rapakivi granite batholith have been investigated by petrographic ...
Lukkari, Sari
core  

Hydrous shear zones are sites of melt transfer in the lower arc crust: A case study from Fiordland, New Zealand

Journal of Metamorphic Geology, Volume 42, Issue 7, Page 933-956, September 2024.
Abstract Recent studies of the Cretaceous lower arc crust exposed in Fiordland, New Zealand, conclude that shear zones are sites of melt migration and mass transfer through the deep crust. Here, we investigate the 4–10 km‐wide George Sound Shear Zone, which cuts the Western Fiordland Orthogneiss, comprising two main rock types: two‐pyroxene gneiss and ...
Aditi Chatterjee, Nathan R. Daczko, Joyjit Dey, Sandra Piazolo   +3 more
wiley   +1 more source

New investigations on Dunje pegmatite, Macedonia I: the contribution to the knowledge about alkali feldspars and its mineral paragenesis

Geologica Macedonica, 2016
Selečka Mountain was thoroughly investigated in the past mostly because of the interesting mineral paragenesis presented in granites, gneisses, amphibolites, different schists and pegmatite bodies. In the valley Smilevski Dol, around 3 km SW from the village of Dunje (Mariovo plateau), in the vicinity of small spring Šohlehov Kladenec hydrothermal ...
Zebec, Vladimir, Mikulčic Pavlakovic, Snjezana, Soufek, M., Boev, Blazo, Boev, Ivan, Bermanec, Vladimir   +5 more
openaire   +4 more sources

Feldspars defined and described: a pair of posters published by the Mineralogical Society. Sources and supporting information [PDF]

, 2010
The Mineralogical Society of Cleat Britain 8: Ireland has published two full-colour posters describing the feldspar minerals, designed primarily for student use They may be downloaded flee of charge by all from www minersoc ore/pages/education/edu html ...
Alling, Brady, Brown, Brown, Carpenter, Christie, Deer, Elkins, Folk, Fuhrman, Goldsmith, Hofmeister, Hovis, I. Parsons, Kroll, Kroll, Kroll, Laves, MacKenzie, Mackenzie, Owen, Parsons, Putnis, Ribbe, Ribbe, Seck, Sipling, Smith, Smith, Smith, Su, Taylor, Wenk, Willaime, Yoder, Yund   +35 more
core   +1 more source

Middle to Late Ordovician flare‐up of granitoids, South Altyn Tagh: Reworking of exhumed continental crust

Geological Journal, Volume 59, Issue 8, Page 2190-2207, August 2024.
U–Pb ages, and O–Hf isotopic compositions of inherited and synmagmatic zircons are addressed to trace the source rocks and petrogenesis of a monzogranite pluton, which belong to the flare‐up of granitoids at 465–445 Ma in the South Altyn Tagh. The observations indicate that this monzogranite is mainly derived from reworking of exhumed continental crust,
Ningchao Zhou, Guochun Zhao, Jinlong Yao, Qian Liu, Yigui Han, Huishan Zhang, Guangli Ren   +6 more
wiley   +1 more source