Geophysical Monograph Series, Page 351-356., 2020 This book is Open Access. A digital copy can be downloaded for free from Wiley Online Library.
Explores the behavior of carbon in minerals, melts, and fluids under extreme conditions
Carbon trapped in diamonds and carbonate-bearing rocks in subduction zones are examples of the continuing exchange of substantial carbon ...
wiley +1 more source
Wavelet-based verification of a relative paleointensity record from the North Pacific
Earth, Planets and Space, 2019 We present a relative paleointensity (RPI) record for the last ~ 1.1 Myr estimated from a sediment core in the central North Pacific, with quality verification using wavelet analysis.
Ji Young Shin, Yongjae Yu, Wonnyon Kim
doaj +1 more source
Reduction of Sb(V) by coupled biotic-abiotic processes under sulfidogenic conditions
Heliyon, 2021 Increasing use and mining of antimony (Sb) has resulted in greater concern involving its fate and transport in the environment. Antimony(V) and (III) are the two most environmentally relevant oxidation states, but little is known about the redox ...
Clayton R. Johnson +6 more
doaj +1 more source
Biogenic Magnetite Formation through Anaerobic Biooxidation of Fe(II) [PDF]
Applied and Environmental Microbiology, 2001 ABSTRACT The presence of isotopically light carbonates in association with fine-grained magnetite is considered to be primarily due to the reduction of Fe(III) by Fe(III)-reducing bacteria in the environment. Here, we report on magnetite formation by biooxidation of Fe(II) coupled to denitrification.
S K, Chaudhuri, J G, Lack, J D, Coates
openaire +2 more sources
EPJ Web of Conferences, 2014 The earliest reported medical use of magnetite powder for internal applications was in the 10th century A.D. by the Persian physician and philosopher Avicenna of Bokhara [1,2].
Malik S., Hewitt I. J., Powell A. K.
doaj +1 more source
Interactions between magnetite and humic substances: redox reactions and dissolution processes
Geochemical Transactions, 2017 Humic substances (HS) are redox-active compounds that are ubiquitous in the environment and can serve as electron shuttles during microbial Fe(III) reduction thus reducing a variety of Fe(III) minerals.
Anneli Sundman +4 more
doaj +1 more source
Red clays indicate sub-aerial exposure of the Rio Grande Rise during the Eocene volcanic episode
Scientific Reports, 2023 Autonomous underwater vehicle (AUV) mapping of the western Rio Grande Rise (RGR), South Atlantic, and subsequent exploration and photography of horizontal lava flows exposed in near vertical, faulted escarpments, showed occurrences of red clays/weathered
Priyeshu Srivastava +7 more
doaj +1 more source
ELECTRON MICROSCOPY OF ANIONIC SURFACTANT-DIRECTED SYNTHESIS OF MAGNETITE NANOPARTICLES [PDF]
Chemistry Journal of Moldova: General, Industrial and Ecological Chemistry, 2016 We have synthesized a variety of magnetite nanoparticles which appear to have biogenic signatures and could give insights into how the nanomagnetite particles form in biological systems, and how they are associated with Alzheimer’s disease.
Sharali Malik +2 more
doaj
Low-temperature magnetic properties of magnetite
, 2000 Although several studies have recommended removal of secondary components of magnetic remanence by zero-field cycling from room temperature to a temperature much lower than the low temperature transition for magnetite (about 120 K), the method has not ...
Wyn Williams +3 more
core +1 more source
Constraining the magnetic properties of ultrafine- and fine-grained biogenic magnetite
Earth, Planets and Space, 2018 Four samples containing ultrafine- and fine-grained magnetite of magnetoferritins and magnetotactic bacteria cells were magnetically characterized at both room and low temperatures.
Tongwei Zhang, Yongxin Pan
doaj +1 more source