Results 141 to 150 of about 11,894 (252)

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

Petrography and mineral chemistry of Northeast Africa 053—A remnant of Martian crystal mush

Meteoritics &Planetary Science, EarlyView.
Abstract In Earth's igneous systems, crystal mushes, crystal‐rich frameworks permeated by silicate melt, represent a common and fundamental stage in the evolution of magma bodies. However, whether crystal mushes occur within Martian igneous systems and play a comparable role is unknown. Here, we present a comprehensive petrography and mineral chemistry
Xhonatan Shehaj, Eleonora Ammannito, Giovanni Pratesi   +2 more
wiley   +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

Polymict melt‐bearing breccia dikes in the Morokweng impact structure formed by slip‐induced mechanical mixing of pseudotachylite and cataclasite along large‐displacement impact faults

Meteoritics &Planetary Science, EarlyView.
Abstract A core drilled through shocked and faulted Archean granitoid gneisses and dolerites in the eroded peak ring of the 70–80 km diameter Morokweng impact structure intersects multiple centimeter‐ to meter‐wide clastic‐matrix breccias containing a polymict clast population of lithic and mineral clasts and altered, millimeter‐ to centimeter ‐size ...
Roger L. Gibson, S'lindile S. Wela, Leonidas C. Vonopartis, Marco A. G. Andreoli   +3 more
wiley   +1 more source

The study of geochemical behavior of rare earth elements in apatites from the Hormoz Island, Persian Gulf

Journal of Economic Geology, 2014
The study area is located about 3 km southwest of the Hormoz Island in the Hormozgan province, in the Persian Gulf. The main rock units in the region consist of a highly altered acidic pluton cratophyre, which is responsible for apatite formation ...
Ali Rostami, Marziyeh Bazamad, Behzad Hajalilou, Mohssen Moazzen   +3 more
doaj  

Performance Evaluation of a Full‐Scale Anaerobic Internal Circulation Reactor Treating Calcium Rich Dairy Industry Wastewater

Water and Environment Journal, EarlyView.
This study investigates the impact of calcium on the performance of a large‐scale internal circulation (IC) reactor treating calcium‐rich dairy wastewater. Excessive calcium concentrations (400‐600 mg L−1) resulted in calcification of the anaerobic sludge, reactor walls, and pipes, suggesting a 17% and 25% reduction in biogas and methane production ...
O. D. Yepez‐Ceron, P. McCarthy, J. Browne, E. Casey, R. K. Dereli   +4 more
wiley   +1 more source

Photothermal Conversion Efficiency of Silver and Gold Incorporated Nanosized Apatites for Biomedical Applications. [PDF]

ACS Omega, 2023
Pinchuk ND, Paściak A, Paściak G, Sobierajska P, Chmielowiec J, Bezkrovnyi O, Kraszkiewicz P, Wiglusz RJ.   +7 more
europepmc   +1 more source

Biogenic apatite in carbonate concretions with and without fossils investigated in situ by micro-Raman spectroscopy. [PDF]

Sci Rep, 2023
Kitanaka R, Tsuboi M, Ozaki Y.
europepmc   +1 more source

APATITE ASSOCIATED ARTHRITIS [PDF]

Rheumatology, 1984
openaire   +2 more sources

Spatial distribution of 6s² lone electron pair in Pb₄Na(PO₄)₃ and stereochemical activity of the 6s² electron cloud in lead-bearing apatites. [PDF]

Acta Crystallogr B Struct Sci Cryst Eng Mater
Hirano K, Okudera H.
europepmc   +1 more source