Results 91 to 100 of about 16,870 (188)

Geochronological Constraints on Diachronous Post‐Collisional Slab Breakoff Along the Paleo‐Tethyan Sutures

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 9, September 2026.
Abstract The slab breakoff model is a preferred geodynamic interpretation for post‐collisional exhumation and associated magmatic flare‐ups. In this study, rutile U–Pb dating of retrograde eclogites revealed distinct stages of exhumation along the Paleo‐Tethyan sutures in southwest China. The studied samples yielded ages of 246.7 ± 8.5 and 239.7 ± 14.0 
Min Liu, Hao Wu, Xi‐Jun Liu, Rong‐Guo Hu, Si‐Nan Lv, Xiao‐Xiao Hu, Yao Xiao, Hao‐Dong Wei   +7 more
wiley   +1 more source

Effect of Cu2+ on the Activation to Muscovite Using Electrochemical Pretreatment

, 2020
In this study, electrochemistry pretreatment flotation of muscovite was carried out and the flotation behavior and mechanism of muscovite in the system of sodium oleate and Cu2+ion was characterized by solution pH value detection, solution conductivity ...
Wei Xiao, Shuqin Li, Yaru Wei, Yubin Wang, Yan Wang   +4 more
core   +1 more source

Mineral Mapping and Ore Prospecting with HyMap Data over Eastern Tien Shan, Xinjiang Uyghur Autonomous Region

Remote Sensing, 2014
Using HyMap data, mineral identification and mineral mapping were conducted on the basis of the spectral absorption index (SAI) and other spectral absorption features in a study area in Tudun, eastern Tien Shan.
Hongyuan Huo, Zhuoya Ni, Xiaoguang Jiang, Ping Zhou, Liang Liu   +4 more
doaj   +1 more source

Seismic Velocity of Chlorite Under High Pressure and Temperature and Implications for the Lesser Antilles Subduction Zone

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 9, September 2026.
Abstract Chlorite is thought to be one of the major water‐carrying phases in subduction zones, both within the slab and in the mantle wedge. Its presence has previously been linked to common seismological observations at subduction zones, including P and S wave anisotropy as well as high VP/VS ratios (>1.8) in the mantle wedge.
Nicholas Backhouse, Andrew Thomson, John Brodholt, Rostislav Hrubiak, Wilson Crichton, Ming Hao, Emmanuel A. Codillo, Anne Pommier, Michael J. Walter   +8 more
wiley   +1 more source

Chromium-containing muscovite: crystal chemistry and XANES Spectroscopy

, 2001
To verify chromium enrichment of the muscovite layer, a crystal chemical and XANES study on chromium-containing muscovite crystals from the South Island of New Zealand was carried out.
G. Cibin, A. Mottana, GALLI, Ermanno, POPPI, Luciano, A. Marcelli, Giannantonio Cibin, L. Medici, Ermanno Galli, Luca Medici, Augusto Marcelli, BRIGATTI, Maria Franca, Maria Franca Brigatti, Annibale Mottana, Luciano Poppi   +13 more
core   +1 more source

Probing the Elastic Anisotropy of Schistose Rocks West of the Tauern Window (Eastern Alps, Austria): The Largest Homogeneous Volume

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 9, September 2026.
Abstract The anatomy of orogens is difficult to decipher as structural information is usually limited to surface and seismic data. Seismic properties are directionally dependent on anisotropic minerals, especially phyllosilicates. Due to tectonic complexity, the effect of anisotropy in seismic data is difficult to determine.
D. Lang, R. Kuehn, R. Kilian, H. Pomella, M. Stipp   +4 more
wiley   +1 more source

Understanding the Liberation of Asphaltenes on the Muscovite Surface

, 2017
Separation of heavy hydrocarbons from mineral surfaces is the key step for unconventional oil production and remediation of oil-contaminated soils. The presence of asphaltene and the coexistence of mineral rocks are considered as the most challenge ...
Hong Sui (727766), Lin He (102807), Yun Bai (120475), Xingang Li (319129)   +3 more
core   +1 more source

Geochemical Disequilibrium at the Brittle‐Ductile Transition

Geochemistry, Geophysics, Geosystems
We investigate the microtextural, microchemical, and isotopic effects of late‐stage ductile deformation in quartzite mylonites and kyanite–muscovite–quartz veins from the Raft River shear zone (Utah).
Raphaël Gottardi, Ryan McAleer, Gabriele Casale, Martin Wong   +3 more
doaj   +1 more source

A new microenvironment for the formation of clay minerals: the example of authigenic halloysite-7Å and gibbsite in a stalactite from Agios Georgios Cave, Kilkis, north Greece

International Journal of Speleology, 2015
An unusual authigenic origin for halloysite and gibbsite is reported in a stalactite from Agios Georgios Cave, Kilkis. This speleothem includes mostly pure calcite whereas minor areas of Mg-rich calcite and scarce dolomite are present in four growth ...
Elena Ifandi, University of Patras, Basilios Tsikouras, Dimitrios Papoulis, Konstantin Hatzipanagiotou, Aspasia Antonelou   +4 more
doaj   +1 more source

Porous and Permeable Crystalline Basement: Evidence for Large‐Scale Hydraulic Connectivity at Kivetty, Finland

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 9, September 2026.
Abstract Porosity and permeability in crystalline shield basement are commonly assumed to be low, yet some fault zones sustain fluid circulation over kilometer scales. Here we quantify multiscale fault‐zone connectivity at Kivetty, central Finland, by integrating legacy deep‐borehole data, including packer tests, downhole logs, and a long‐term multi ...
Daniel Carbajal‐Martínez, Michael J. Heap, Ester M. Jolis, Toni Luoto, Thierry Reuschlé, Satu Vuoriainen, Jukka Kuva, Evgenii Kortunov, Alan Bischoff   +8 more
wiley   +1 more source