Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Karel Zapletal"'
Publikováno v:
Geophysical Journal International. 129:715-719
SUMMARY The measurement of the temperature variation of magnetic susceptibility can be used for the separation of ferromagnetic and paramagnetic susceptibility components. The method suggested by Hrouda (1994) assumes a hyperbolic dependence of param
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::41b8cd9fd23a79a4f24db55c64d929f5
https://doi.org/10.1111/j.1365-246x.1997.tb04506.x
https://doi.org/10.1111/j.1365-246x.1997.tb04506.x
Autor:
Karel Zapletal
Publikováno v:
Physics of the Earth and Planetary Interiors. 76:151-162
Several types of massive natural pyrrhotites were characterized using low-field magnetic susceptibility and its anisotropy (AMS), thermomagnetic analysis and the colloid method. The pyrrhotites studied differed in the concentration of the ferrimagnet
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3d5680e049391feb41d932897fd3f1b5
https://doi.org/10.1016/0031-9201(93)90064-g
https://doi.org/10.1016/0031-9201(93)90064-g
Autor:
Karel Zapletal
Publikováno v:
Physics of the Earth and Planetary Interiors. 70:302-311
The remanent magnetization induced at room temperature (IRM) was measured for powder and massive specimens separated from a Fe7S8 crystal. To characterize the crystal, several methods were used including Mossbauer spectroscopy, thermomagnetic analysi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cd84c2af210cf5e1a42adad7112904d1
https://doi.org/10.1016/0031-9201(92)90196-3
https://doi.org/10.1016/0031-9201(92)90196-3
Autor:
Karel Zapletal
Publikováno v:
Physics of the Earth and Planetary Interiors. 63:85-97
The low-field magnetic susceptibility anisotropy (LMA) of weakly magnetic rocks is dominated by paramagnetic minerals among which micas, and mainly biotite, is important. For this reason, the LMA of biotite crystals was investigated in detail. Natura
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b42a383c21a15fe1ddb89c07ca95483a
https://doi.org/10.1016/0031-9201(90)90063-4
https://doi.org/10.1016/0031-9201(90)90063-4
Publikováno v:
Studia Geophysica et Geodaetica. 23:42-54
Phase, structural and magnetic changes, occurring under oxidation and at increased temperatures, are studied on four samples of magnetic fractions. The samples of magnetic fractions, containing titanomagnetites at different oxidation levels, were oxi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ebcd3519ede26074da483b5f515572b2
https://doi.org/10.1007/bf01628064
https://doi.org/10.1007/bf01628064
Autor:
Vladimír Kropáček, Karel Zapletal
Publikováno v:
Studia Geophysica et Geodaetica. 29:351-361
The changes in the anisotropy of initial susceptibility of haematite ores, induced by a D.C. magnetic field are studied. After applying stronger magnetic fields, the changes in the anisotropy parameters are considerable and depend on the manner in wh
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e8fe36b7541eba5eb059261727e74f0a
https://doi.org/10.1007/bf01641625
https://doi.org/10.1007/bf01641625
Autor:
Karel Zapletal
Publikováno v:
Studia Geophysica et Geodaetica. 13:191-198
Es wurde der Zusammenhang zwischen einigen magnetischen Eigenschaften und der Phasenstruktur von Naturpyrrhotinen aus 19 uberwiegend tschechoslovakischen Lokalitaten studiert. Mit der Methode der Staubfiguren wurde die Domanenstruktur und Phasenzusam
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::449f211be0960df712e056b5f3de91bf
https://doi.org/10.1007/bf02587820
https://doi.org/10.1007/bf02587820
Autor:
F. Janák, Karel Zapletal
Publikováno v:
Studia Geophysica et Geodaetica. 16:167-176
The magnetic phases of natural pyrrhotites were studied by the method of powder patterns, the chemism of the magnetic phases by means of the electron microprobe method, and the crystal phases by etching the polished sections. The method of powder pat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::13390ad0b29ed44239aab4cd32e8c820
https://doi.org/10.1007/bf01614513
https://doi.org/10.1007/bf01614513