磁学

This study shows thermomagnetic analyses, petrographic measurements and soil chemistry methods can be combined to obtain a better understanding of the sequence of magnetic mineral alterations during thermal treatment and of the pedogenic mechanism responsible for the susceptibility enhancement.

本文以热磁分析手段为主，结合土壤化学和X射线衍射等非磁学方法，系统研究了黄土高原全新世风成沉积在热处理过程中磁化率的变化特征和磁性矿物的转化序列，讨论了主要磁性矿物的成因，并探讨了特定温度范围内磁化率变化特征的古气候意义。

The paleolatitude of the Nantuo sandstone of lower sinian in the Earstern Gorge Region of the Yangtze River was determined to be 74.5°-72.1°, and that of the Nantuo tillite was 86°.

用古地磁学方法测定长江峡东地区下震旦系南沱砂岩的古纬度是74.5°—72.1°，南沱冰碛岩的古纬度是86°。

Then, the electric properties and magnetic properties of troilite were studied. The study results discover that troilite could be used as a kind of magnetic semiconductor.

对合成出的陨硫铁样品进行了电学和磁学等物理性能的研究，研究结果发现陨硫铁可以成为一种软磁性半导体材料，可望在今后得到应用。

The structure and the surface valency state of the Co nanocrystals were measured by XRD and TEM.

利用SQUID对其磁学特性进行了分析。

Periodicals; geophysics; geochemistry; paleomagnetism; marine geology; mineralogy; volcanology; seismology; geodesy; tectonics; mineral composition; igneous rocks; gravity anomalies

关键词：期刊；地球物理学；地球化学；古磁学；海洋地质学；火山学；矿物学；地震学；测地学；构造学；矿物组成；火成岩；重力异常

The magnetic properties of strained Ni/W multilayers are studied as afunction of Ni layer thickness dNi.

我们对溅射制备的Ni/W多层膜的结构和磁学特性也作了初步的研究。

The magnetic intensity in the sediment from the Changjiang River mouth is obviously higher than that from the Huanghe River mouth, especially in terms of magnetic susceptibility, anhysteretic remanent magnetization and saturation isothermal remanent magnetization.

对采自长江现行主河道和黄河入海口处的表层沉积样品进行了环境磁学参数的测量和对比研究。

The systematic analysis on the magnetic characteristics of street dust from Xi′an city indicates high concentration of magnetic minerals corresponding to the high value of the magnetic susceptibility, the anhysteretic susceptibility and the saturation isothermal remnant magnetization.

西安市道路表面灰尘样品的环境磁学研究显示磁化率、非磁滞磁化率以及饱和等温剩磁均比较高，表明样品中磁性矿物含量较高。

Mineral magnetic parameters, including magnetic susceptibility, frequency dependent susceptibility, isothermal remanent magnetization, anhysteretic remanent magnetization, temperature-dependence of susceptibility, were measured on quartzite and surface soil derived from quartzite. The results in combination with the microscope observation indicated little magnetic mineral in quartzite but a few magnetite, maghemite, iron oxyhydroxides in surface soil. The magnetic grains were mainly superparamagnetic and stable single domain. Maghemite is secondary mineral formed in the process of pedogenesis.

通过对石英岩及发育于石英岩之上表土的磁化率、频率磁化率χ(下标 fd、等温剩磁、非磁滞剩磁ARM0、k-T曲线等磁学参数测定和石英岩显微镜下观察，结果表明，石英岩中磁性矿物含量极少；表土中含磁铁矿、磁赤铁矿、铁的氢氧化物等磁性矿物，磁性矿物主要以稳定单畴(SSD和超顺磁性颗粒形式存在，磁赤铁矿是石英岩在成土过程中形成的次生矿物。

Multiple magnetic parameters such as magnetic susceptibility , anhysteretic remanent magnetization , saturation remanent magnetization , coercivities of SIRM , and S ratios (relative abundance of low-coercivity magnetic minerals) are measured for all 179 surface samples, and partial representative samples are examined for their magnetic hysteresis parameters, temperature-dependence of magnetic susceptibility and x-ray diffraction spectra.

对于全部179个海底表层沉积物样品，测量了多个磁学参数，如：磁化率、非磁滞剩磁、饱和等温剩磁、剩磁矫顽力、S比率（低矫顽力矿物的相对含量）。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。