Magnetic and mineralogical properties of salt rocks from the Zechstein of the Northern German Basin
Magnetic and mineralogical properties of salt rocks from the Zechstein of the Northern German Basin
复制标题
德国北部盆地 Zechstein 盐岩的磁性和矿物学特性
DOI:
10.1093/gji/ggw488
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发表时间:
2017
影响因子:
2.8
通讯作者:
Mertineit
中科院分区:
文献类型:
--
作者:
Heinrich;Schmidt;Schramm;Mertineit
Magnetic properties of rocks are often studied to characterize composition and fabric of rocks. For salt rocks, the basic relationships between their magnetic properties and composition, which are necessary to interpret rock magnetic data, are not yet established. Therefore, we studied different types of natural salt rock and pure salt minerals. We measured their magnetic properties (magnetic susceptibility, isothermal remanent magnetization acquisition curves, first-order reversal curve diagrams and temperature-dependent magnetic susceptibility) and used analytical methods such as microscopy, X-ray diffraction and inductively coupled plasma atomic emission spectroscopy to understand the relationship between magnetic properties and mineralogy. Salt rocks mainly consist of the diamagnetic minerals halite, carnallite, sylvine and anhydrite with negative magnetic susceptibilities. The magnetic susceptibilities of pure synthetic NaCl and KCl single crystals, show values of −14.5 × 10−6and −13.5 × 10−6SI, respectively. In contrast, in natural salt rocks higher magnetic susceptibility values were measured. The magnetic susceptibility of the samples investigated in this study shows a general increase from light rock salt (maximum −10 × 10−6SI) over carnallitite (maximum 134 × 10−6SI) to red sylvinite (maximum 270 × 10−6SI). Whole rock analyses suggest that increased magnetic susceptibility can be attributed to paramagnetic and ferromagnetic minerals that are contained within the insoluble residue. The magnetic susceptibility is mainly controlled by magnetite and phyllosilicates. Its measurement can therefore be used to detect subtle changes in the content of these minerals.
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影响因子:
25.2
作者:
D. Goldberg
通讯作者:
D. Goldberg
DOI:
--
发表时间:
1985
期刊:
Physical Review B (Condensed Matter)
影响因子:
--
作者:
Shepherd;Aragón;Koenitzer;Honig
通讯作者:
Honig
DOI:
--
发表时间:
1969
期刊:
影响因子:
--
作者:
H. Füchtbauer;Hertha Goldschmidt
通讯作者:
Hertha Goldschmidt
DOI:
--
发表时间:
1962
期刊:
影响因子:
--
作者:
O. Braitsch
通讯作者:
O. Braitsch
DOI:
--
发表时间:
2003
期刊:
影响因子:
--
作者:
M. Scheck;U. Bayer;B. Lewerenz
通讯作者:
B. Lewerenz