Results 141 to 150 of about 32,961 (360)

Review of: "Exploration of Quartz, Feldspar, and Mica Minerals Using Geophysical Resistivity, Self-Potential, and Natural Electrical Field Techniques" [PDF]

Hicham Nasri
openalex   +1 more source

Determining impact angle from the spatial distribution of shock metamorphism: A case study of the Gosses Bluff (Tnorala) impact structure, Australia

Meteoritics &Planetary Science, EarlyView.
Abstract The majority of planetary impacts occur at oblique angles. Impact structures on Earth are commonly eroded or buried, rendering the identification of the direction and angle of impact—using methods such as asymmetries in ejecta distribution, surface topographic expression, central uplift structure, and geophysical anomalies—challenging. In this
Eloise E. Matthews, Auriol S. P. Rae, Thomas Kenkmann, Nicholas E. Timms, Aaron J. Cavosie, Marian B. Holness   +5 more
wiley   +1 more source

Laboratory and Pilot Scale Studies of Potassium Extraction from K-feldspar Decomposition with CaCl₂ and CaCO₃

, 2016
Yan Zhang, Edouard Asselin, Zhibao Li
openalex   +2 more sources

Vertical profiling of shock attenuation at the Rochechouart impact structure, France

Meteoritics &Planetary Science, EarlyView.
Abstract Rochechouart, south‐west France, is a complex impact structure. Here, we present the first report of shock barometry of quartz from what are likely parautochthonous basement units at depth, based on samples from the 2017 C.I.R.I.R drilling campaign. The crystallographic orientations of 725 sets of PDFs in 512 quartz grains in samples from four
P. Struzynska, S. Alwmark, C. Alwmark, M. H. Poelchau, P. Lambert   +4 more
wiley   +1 more source

The manufacture of potash alum from feldspar

, 1882
H. Earl Pemberton
openalex   +2 more sources

Can Schwantke's compound be formed by reaction of alkalic feldspars with hydrothermal calcic solution? A comment on the recent paper by P. M. Orville: Plagioclase cation exchange equilibria with aqueous chloride solutions at 700 degrees C and 2000 bars in the presence of quartz [PDF]

, 1974
Jean Wyart, G. Sabatier
openalex   +1 more source

Layer Formation on Feldspar Bed Particles during Indirect Gasification of Wood. 1. K-Feldspar

, 2019
The choice of bed material for biomass gasification plays a crucial role for the overall efficiency of the process. Olivine is the material conventionally used for biomass gasification due to the observed activity of olivine toward cracking of unwanted ...
Seemann, Martin,, Hannl, Thomas Karl,, Vilches, Teresa Berdugo, Berdugo Vilches, Teresa, Knutsson, Pavleta,, Kuba, Matthias, Faust, Robin, Faust, Robin,, Öhman, Marcus,, Hannl, Thomas Karl, Öman, Marcus,, Seemann, Martin, Kuba, Matthias,, Ohman, Marcus, Knutsson, Pavleta, 6man, Marcus, Berdugo Vilches, Teresa,   +16 more
core   +1 more source

Confirmation of the impact origin of the Late Ordovician Tvären impact structure (southeast Sweden) and emplacement of impactites in a marine setting

Meteoritics &Planetary Science, EarlyView.
Abstract The Tvären structure in southeastern Sweden has been listed as a confirmed marine‐target impact structure for decades. However, to date, no measurements and/or indexed data of planar deformation features in quartz grains from the structure have been published or any other unequivocal evidence of impact.
Katarzyna J. Gajewska, Sanna Alwmark, Mikael Calner, Sylvain Richoz, Jens Ormö, Erik Sturkell, Carl Alwmark   +6 more
wiley   +1 more source

Pb-Pb and trace element analyses of detrital feldspars from sediment core IN2017_V01-A042-KC14 and in-situ feldspars from coastal rocks of Chick Island and Balaena Islets, East Antarctica

, 2019
Sian Tooze, JA Halpin, Zanna Chase, Leanne Armand, P.E. O’Brien, Taryn L. Noble   +5 more
openalex   +2 more sources

Age of sediments on Danube terraces of the Pest Plain (Hungary) based on optically stimulated luminescence dating of quartz and feldspar [PDF]

, 2020
Edit Thamó‐Bozsó, Gábor Csillag, Judit Füri, Attila Nagy, Árpád Magyari   +4 more
openalex   +1 more source