Results 161 to 170 of about 26,623 (334)

Qualitative Dissolution Modeling of Etch‐Pit Formation on the K‐Feldspar Surface Through Phase‐Field Approach [PDF]

, 2023
Akash Kumar, Nishant Prajapati, Michael Späth, Benjamin Busch, Daniel Schneider, Christoph Hilgers, Britta Nestler   +6 more
openalex   +1 more source

The making of pure quartzose sand in continental interiors: Paraná River (Brazil and Argentina)

Sedimentology, EarlyView.
ABSTRACT As part of a comprehensive project on sedimentary processes in South America, this study focuses on sediment generation in the intracratonic Paraná Basin and monitors the evolution of sand composition along the Paraná River from central Brazil to the Río de la Plata estuary in Argentina.
Eduardo Garzanti, Marta Barbarano, Mara Limonta, Guido Pastore, Pieter Vermeesch, Giovanni Vezzoli   +5 more
wiley   +1 more source

Spatially resolved infrared radiofluorescence: single-grain K-feldspar dating using CCD imaging

, 2021
Dirk Mittelstraß, Sebastian Kreutzer
openalex   +1 more source

Testing local and extraregional sediment sources for the Late Cretaceous northern Nanaimo basin, British Columbia, using 40Ar/39Ar detrital K-feldspar thermochronology [PDF]

, 2021
Virginia Isava, Marty Grove, J. Brian Mahoney, James W. Haggart   +3 more
openalex   +1 more source

The Acraman impact and its widespread ejecta, South Australia [PDF]

Discovery of a widespread horizon of shock-deformed volcaniclastic ejecta preserved in Late Proterozoic (approx. 600 Ma) shales in South Australia and its probable link to the Acraman impact structure in the Middle Proterozoic Gawler Range.
Gostin, V. A., Keays, R. R., Wallace, M. W.   +2 more
core   +1 more source

Near‐Synchronous Cambrian Evolution of the Transbrasiliano‐Kandi‐4°50′ Shear Zone in South America and Africa

Terra Nova, EarlyView.
ABSTRACT The Transbrasiliano‐Kandi‐4°50′ (TK4) shear zone in western Gondwana crosscuts South America and NW Africa for at least 6000 km. Despite its impressive size, the timing of the main episode of dextral ductile shearing is uncertain. We present detailed in situ multi‐mineral geochronology of mylonites from both Brazil and Algeria supporting that ...
F. A. Caxito, B. V. Ribeiro, F. Alkmim, A. Deramchi, C. L. Kirkland   +4 more
wiley   +1 more source

Time-dependent Catalytic Activation of Inactive K-Feldspar by Layer Formation during Fluidized Bed Conversion with Residual Fuels

, 2019
Katharina Wagner, Christoph Hammerl, Matthias Kuba, Hermann Hofbauer   +3 more
openalex   +1 more source

Dating C/S Structures in Syntectonic Granites by In Situ Rb‐Sr Analyses on Muscovite

Terra Nova, EarlyView.
ABSTRACT The interplay of crystallisation, deformation and fluid–rock interactions makes deciphering geochronological information complex in syntectonic granites. In this study, we apply in situ Rb‐Sr analyses to selected samples from the Questembert Variscan syntectonic granite in Western France, which was emplaced along the South Armorican Shear Zone
Philippe Boulvais, Romain Tartèse
wiley   +1 more source

Preservation of Permeability in Deeply Buried Sandstones of the Viking Graben: Inhibition of Illitization Due to Absence of K-Feldspar: ABSTRACT

, 1995
P. A. Bjorkum S. N. Ehrenberg
openalex   +1 more source

Subcritical Cracking Associated With Subgrain Rotation Recrystallisation in Quartz Inferred From Cathodoluminescence Study

Terra Nova, EarlyView.
ABSTRACT We employed cathodoluminescence (CL) to study deformed quartz phenocrysts from the Cretaceous granite porphyry in SW Japan and observed fracture‐like planar structures appearing as CL‐dark bands. These CL‐dark bands were aligned with low‐angle grain boundaries formed by subgrain rotation recrystallisation.
Takuro Yoshioka, Takamoto Okudaira, Hideo Takagi   +2 more
wiley   +1 more source