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{{Short description|Study of magnetic properties of minerals with a view to understanding magnetism within rocks}} ...gnets]], [[ferrimagnets]] and certain kinds of [[antiferromagnets]]. These minerals have a much stronger response to the field and can have a remanence. ...

...ly record the [[geomagnetic field]]. He also modeled frequency-dependent [[Magnetic susceptibility|susceptibility]] and alternating field demagnetization. ...nanoparticles is a single giant magnetic moment, sum of all the individual magnetic moments carried by the atoms of the nanoparticle. This is what people are w ...

...anence]] that is acquired by [[ferromagnetic materials]] by sitting in a [[magnetic field]] for some time. The [[natural remanent magnetization]] of an [[igneo Viscous remanent magnetization is the result of jumps between magnetic states driven by [[thermal fluctuations]]. In the simplest case, there is a ...

...ed in the Earth's field without heating; that heating rocks in the Earth's magnetic field could magnetize them in the direction of the field; and that the Eart ...bove the [[Curie temperature]] <math>\scriptstyle T_\text{C}</math> of the minerals carrying it. A TRM can also be partially demagnetized by heating up to some ...

*[[Magnetic roasting technology]] ...-Fe₂O₃), while the magnetic properties of [[gangue]] minerals remain almost unchanged.<ref name=":1">{{Cite journal |last1=Qin |first1=Ho ...

...re [[ferromagnetism|ferromagnetic]] (iron-, nickel-, and cobalt-containing minerals) and [[paramagnetism|paramagnetic]].<ref name=":2" /> Most metals, includi ...articles are being drifted by the movement of the drums. This can create a magnetic concentrate (e.g. an [[ore]] concentrate).<ref name=":2" /> ...

...te materials, for which [[radiocarbon dating]] does not work well, such as minerals (e.g. [[carbonate]]s, [[silicate]]s, [[Sulfate|sulphates]]), inorganic biol ...-first=Michinari|doi-access=free }}</ref> and sometimes to [[Mining|mine]] minerals.<ref>{{Cite journal |last1=Sharaf |first1=M.A. |last2=Hassan |first2=Gamal ...

...etic hysteresis]] and is useful for modeling small magnetic particles in [[magnetic storage]], [[biomagnetism]], [[rock magnetism]] and [[paleomagnetism]]. ...field varies, the magnetization is restricted to the plane containing the magnetic field direction and the [[easy axis]]. It can therefore be represented by a ...

| category = [[Oxide minerals]] | other = non-radioactive, non-magnetic ...

...s.org/journals/forma/pdf/1501/15010057.pdf|title=Black-and-White Symmetry, Magnetic Symmetry, Self-Duality and Antiprismatic Symmetry: The Common Mathematical ...l black lattice points white and all white lattice points black. Thus, the magnetic space groups serve as an extension to the [[crystallographic space group]]s ...

...he wave propagation is in the z-direction, both the electric field and the magnetic field lie in the xy-plane. The electric field points in a specific directio ...auses of anisotropy. Crystals, certain [[polymer]]s, calcite, and numerous minerals are typical examples of anisotropic materials. The physical characteristics ...

| publisher = Open Courseware, King Fahd Univ. of Petroleum and Minerals, Saudi Arabia ...releasing into the external circuit the stored energy from the electric or magnetic field. ...

...t minerals like quartz and mica can be moved faster and further than heavy minerals (like zircon and tourmaline). ...lite]] [[crystallinity]], reworked fossils and [[palynomorph]]s, and stock magnetic properties. ...

...but also have very high porosities (due to the structured nature of [[clay minerals]]), which means clays can hold a large volume of water per volume of bulk m ...g overall porosity of a rock. This can be a result of chemical leaching of minerals or the generation of a fracture system. This can replace the primary porosi ...

...grade teacher, Bill Welsh, observed Robert's interest in his collection of minerals. Hazen later recalled "He gave me a starter collection of 100 specimens, mi ...e.<ref name=cv/> After a brief stint measuring optical properties of lunar minerals with Peter Bell and [[Ho-Kwang Mao|David Mao]], he started to do X-ray crys ...

...(relative motion) or to other reference frames, such as the [[Earth]]'s [[magnetic field]] or groups of [[Hotspot (geology)|hotspots]], in the geological past ...r with the other plates, to another reference frame, such as the [[Earth's magnetic field]], as determined from paleomagnetic measurements of rocks of known ag ...

...eous, metamorphic and sedimentary rocks.<ref name=Williams2007 /> Monazite minerals contain significant amounts of [[radioactive]] elements [[Thorium|Th]] and ...Th-Pb system is higher than 800&nbsp;°C, much higher than the other common minerals.<ref name="Smith1997">Smith, H. A., & Giletti, B. J. (1997). Lead diffusion ...

...} ratio in the [[atmosphere]] due to factors such as changes in [[Earth's magnetic field]], solar activity, and human influences like [[fossil fuel]] burning. ...and a shorter 11-year cycle. Sunspots cause changes in the solar system's magnetic field and corresponding changes to the cosmic ray flux, and hence to the pr ...

...in multiple phases and may use either dry or wet methods) and by employing magnetic separation and flotation techniques. * Magnesian Pellets: Magnesian pellets are created by adding minerals such as olivine<ref name=":1" /> or serpentine,<ref name=":7" /> which incr ...

...with Tetrathiafulvalene Tetracarboxylate Ligand: Synthesis, Structure and Magnetic Properties|year=2008|last1=Han|first1=Yin-Feng|last2=Li|first2=Min|last3=Wa ...