Results 171 to 180 of about 127,670 (294)

Disappearance of peculiarly large atomic displacement in the high-temperature phase of magnetite with substitution of Fe²⁺ by Ni²⁺ and Mn². [PDF]

Acta Crystallogr B Struct Sci Cryst Eng Mater
Kitamura T, Niimi T, Okudera H.
europepmc   +1 more source

Static recrystallization of shocked calcite in Ries impact breccias

Meteoritics &Planetary Science, EarlyView.
Abstract Calcite is prone to chemical and microstructural modifications, especially after having been strained at high stresses and strain rates, as during hypervelocity impact events. These modifications include precipitation from pore fluid as well as replacement of strained volumes by recrystallization. In calcite aggregates of a metagranite breccia
Claudia A. Trepmann, Fabian Dellefant, Lina Seybold, Wolfgang W. Schmahl, Elena Sturm, Daniel Weidendorfer, Sandro Jahn, Iuliia V. Sleptsova, Stuart A. Gilder   +8 more
wiley   +1 more source

Systematical synthesis of magnetic-layered core@shell supports for metalloporphyrin immobilization aiming catalysis. [PDF]

RSC Adv
Dos Santos EH, Dalla Costa AD, Prevot V, Forano C, Nakagaki S.   +4 more
europepmc   +1 more source

The effect of early diagenetic processes on the quantification of fossil micrometeorite abundance and flux in the geological record

Meteoritics &Planetary Science, EarlyView.
Abstract Fossil micrometeorites (MMs) recovered from lithified sedimentary rocks, particularly iron‐rich (I‐type) cosmic spherules (CSs) provide valuable insights into past dust‐forming events. Their abundances, when combined with estimates of local sedimentation rates can be used to reconstruct the flux of extraterrestrial dust.
Isabelle S. Mattia, Matthew J. Genge, Martin D. Suttle   +2 more
wiley   +1 more source

Kinetic and isotherm study of Ni-MOF/Magnetite nanoparticles adsorption capacity as green synthesized adsorbent towards rhodochrome (Kammererite). [PDF]

Sci Rep
Elshafei MF, Mostafa MR, Khalf-Alla PA, Mohamed GG, Fouad OA.   +4 more
europepmc   +1 more source

Small‐scale elemental abundance variations in Ryugu particles from touchdown 1

Meteoritics &Planetary Science, EarlyView.
Abstract Ryugu materials closely resemble CI chondrites' mineralogical, chemical, and isotopic compositions; yet minor but resolvable differences in certain elemental abundances are evident. In this study, the bulk chemical compositions of eight individual Ryugu particles (1.5–4.3 mg) from the first touchdown site (TD1) were determined using triple ...
Karina López García, Tetsuya Yokoyama, Ikshu Gautam, Makiko K. Haba, Tsuyoshi Iizuka, Nao Nakanishi, Ryota Fukai   +6 more
wiley   +1 more source

Nonlinear Redox Transformations of Chromium in Soil during Wildfire Heating: The Critical Role of Iron Mineralogy. [PDF]

Environ Sci Technol
Namayandeh A, Lamb C, Sarabia JL, Shakouri M, Lopes E, Lezama Pacheco J, Honeyman A, Coker A, Stewart B, Tikoo S, Peak D, Fendorf S.   +11 more
europepmc   +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

Catalyzing innovation: exploring the potential of eco-friendly synthesized magnetic iron oxide nanoparticles for heavy metals removal from water. [PDF]

Discov Nano
Raza N, Anwar A, Shoaib A, Khan S, Intisar A, Habib MS, Irshad F.   +6 more
europepmc   +1 more source

Microspherules Formed by Lightning Strikes

Meteoritics &Planetary Science, EarlyView.
Abstract Natural microspherules are formed by high‐temperature processes and are present throughout the geologic record to the present day. We report the discovery of large numbers of microspherules recovered from a rock pavement in the Pilbara region, Western Australia.
M. R. Boyd, M. J. Genge, A. G. Tomkins
wiley   +1 more source