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Effects of Magnetic Minerals Exposure and Microbial Responses in Surface Sediment across the Bohai Sea [PDF]

open access: yesMicroorganisms, 2021
Extensive production and application of magnetic minerals introduces significant amounts of magnetic wastes into the environment. Exposure to magnetic minerals could affect microbial community composition and geographic distribution. Here, we report that
Lei Chen   +6 more
doaj   +2 more sources

Formation of magnetic minerals at hydrocarbon-generation conditions [PDF]

open access: yes, 2015
In this paper, we report the pyrolysis and formation of magnetic minerals in three source rock samples from the Wessex Basin in Dorset, southern England.
Abubakar, R.   +6 more
core   +3 more sources

Intersystem Crossing of 2-Methlypyrazine Studied by Femtosecond Photoelectron Imaging

open access: yesMolecules, 2022
2-methylpyrazine was excited to the high vibrational dynamics of the S1 state with 260 nm femtosecond laser light, and the evolution of the excited state was probed with 400 nm light. Because it was unstable, the S1 state decayed via intersystem crossing
Naipisai Wumaierjiang   +6 more
doaj   +1 more source

Femtosecond Time-Resolved Observation of Relaxation and Wave Packet Dynamics of the S1 State in Electronically Excited o-Fluoroaniline

open access: yesMolecules, 2023
Quantum beat frequency is the basis for understanding interference effects and vibrational wave packet dynamics and has important applications. Using femtosecond time-resolved mass spectrometry and femtosecond time-resolved photoelectron image combined ...
Bumaliya Abulimiti   +6 more
doaj   +1 more source

Sedimentary Rock Magnetic Response to Holocene Environmental Instability in the Pearl River Delta

open access: yesFrontiers in Earth Science, 2022
Located on the northern coast of the South China Sea, the densely populated Pearl River Delta has experienced the combined effects of sea-level change, monsoon-driven discharge, and especially human activity, since the late Holocene.
Yi Wu   +16 more
doaj   +1 more source

Magma storage conditions beneath Krakatau, Indonesia: insight from geochemistry and rock magnetism studies

open access: yesFrontiers in Earth Science, 2023
Understanding the evolution of magma storage conditions on volcanoes which have had more than one caldera-forming eruption (CFE) is important to know about past and present conditions, as a key to forecast future potential hazards.
Aditya Pratama   +19 more
doaj   +1 more source

Rock magnetic investigations constraining relative timing for gold deposits in Finland [PDF]

open access: yesBulletin of the Geological Society of Finland, 2011
Palaeomagnetic and anisotropy of magnetic susceptibility (AMS) studies were carried out on a orogenic gold deposit in Jokisivu, located in the western part of the Pirkanmaa Belt in the Svecofennian domain of southern Finland.
S. Mertanen, F. Karell
doaj   +1 more source

Scanning electron microscope (SEM) imaging and analysis of magnetic minerals of lake Diatas peatland section DD REP B 693

open access: yesJournal of Physics: Conference Series, 2020
Peatlands are formed from the accumulation of organic matter that originate from weathering vegetation for a long time. Minerals within peatlands can come from volcanic ash and consist of several types of minerals, one of which is magnetic minerals. This
N. Aisyah   +7 more
semanticscholar   +1 more source

Influence of Early Low‐Temperature and Later High‐Temperature Diagenesis on Magnetic Mineral Assemblages in Marine Sediments From the Nankai Trough

open access: yesGeochemistry, Geophysics, Geosystems, 2021
Diagenesis can have a major impact on sedimentary mineralogy. Primary magnetic mineral assemblages can be modified significantly by dissolution or by formation of new magnetic minerals during early or late diagenesis.
Myriam Kars   +8 more
doaj   +1 more source

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