Results 41 to 50 of about 28,365 (287)

Magnetic Susceptibility Record in Paleozoic Succession (Rhenohercynian Massif, Northern Europe) – Disentangling Sea Level, Local and Diagenetic Impact on the Magnetic Records

open access: yesFrontiers in Earth Science, 2019
This study uses an integrated approach, including sedimentology, geochemistry and hysteresis magnetic measurements on a million year Givetian sequence in the southern margin of the Ardennes carbonate platform (France) to test the reliability of magnetic ...
Damien Pas   +5 more
doaj   +1 more source

MAGNETIC PROPERTIES OF WEAK-MAGNETIC MINERALS OF KRYVBASS IRON QUARTZITES

open access: yesГеохімія техногенезу, 2020
To reduce the metal loss after grinding in the ore-dressing process, the authors studied the magnetic properties of minerals in Kryvyi Rig oxidized quartzites and determined the possibility of their flocculation.
Hubina V.   +3 more
doaj   +1 more source

INTERPRETASI DATA GEOMAGNETIK UNTUK MENDETEKSI SEBARAN BATUAN MENGANDUNG MINERAL LOGAM DI AWANG BANGKAL, KABUPATEN BANJAR

open access: yesAl-Ulum, 2022
Research has been carried out to detect the presence and distribution of rocks containing metallic minerals. Almost every object used every day contains metal elements, so the presence of metal is very important to support every human activity.
rudy hendrawan noor, Ishaq Ishaq
doaj   +1 more source

A Dislocation Perspective on Strength and Toughness in Ceramics

open access: yesAdvanced Engineering Materials, EarlyView.
Dislocations in ceramics enjoy a long but yet under‐appreciated history. The three research waves for dislocations in ceramics highlight the topic evolution over the last 90 years. This review focuses on the impact of dislocation on strength and toughness in ceramics.
Xufei Fang
wiley   +1 more source

Modeling transport of paramagnetic ions in porous materials [PDF]

open access: yesAIP Advances
A mathematical model based on a drift–diffusion theory is proposed to describe the transport of paramagnetic ions under magnetic field gradients in porous materials.
Petru Andrei
doaj   +1 more source

Magnetic Mineralogy of Speleothems From Tropical-Subtropical Sites of South America

open access: yesFrontiers in Earth Science, 2021
Fe-bearing minerals are a tiny fraction of the composition of speleothems. They have their origin in the karst system or are transported from the drainage basin into the cave.
Plinio Jaqueto   +8 more
doaj   +1 more source

Liquid Phase Transmission Electron Microscopy: A Window into the Early Stages of Complex Material Formation

open access: yesAdvanced Functional Materials, EarlyView.
Liquid‐phase transmission electron microscopy enables direct observation of nucleation and growth processes in solution. This review is dedicated to the remembrance of Helmut Cölfen and highlights recent studies on complex materials—oxides, biominerals, organic–inorganic crystals—which were central to his research activity. It summarizes key milestones,
Charles Sidhoum   +5 more
wiley   +1 more source

Avian magnetoreception: elaborate iron mineral containing dendrites in the upper beak seem to be a common feature of birds

open access: yes, 2010
The magnetic field sensors enabling birds to extract orientational information from the Earth’s magnetic field have remained enigmatic. Our previously published results from homing pigeons have made us suggest that the iron containing sensory dendrites ...
Mouritsen, H.   +34 more
core   +1 more source

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.
Fraser, A.J.   +13 more
core   +1 more source

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