Direction and relative paleointensity of the geomagnetic field in the middle and later pleistocene from paleomagnetic data of the Roxolany section (Ukraine)
Direction and relative paleointensity of the geomagnetic field in the middle and later pleistocene from paleomagnetic data of the Roxolany section (Ukraine)
复制标题
乌克兰Roxolany剖面古地磁数据显示中更新世中晚期地磁场的方向和相对古强度
DOI：
--
复制
发表时间：
2007
期刊：
影响因子：
--
通讯作者：
V. M. Trubikhin
中科院分区：
文献类型：
--
作者：
O. Pilipenko;Z. V. Sharonova;V. M. Trubikhin
对乌克兰Roxolany剖面下部进行了研究，获得了300 ~ 75 ka时期岩石样品的古地磁和岩磁特征。构造了完整时间区间地磁场角参数的详细变化曲线，得到了300 ~ 180 ka区间的相对古强度变化曲线。利用角参数值和虚地磁极与静止场位置的偏差，在250 ~ 249和221 ~ 220 ka区间确定了与牙买加偏移相匹配的异常方向。利用小波分析方法对地磁场演化进行了研究，发现在300 ~ 180 ka的区间内，地磁场的发生过程发生了变化。
The lower part of the Roxolany section (Ukraine) is studied, and paleomagnetic and petromagnetic characteristics of rock samples are obtained for the time interval 300-75 ka. Detailed curves of variations in angular parameters of the geomagnetic field are constructed in the entire time interval, and curves of variations in the relative paleointensity are obtained for the interval 300-180 ka. Using the values of the angular parameters and the deviations of the virtual geomagnetic pole from the position of the stationary field, anomalous directions compatible with the Jamaica excursion are identified in the intervals 250-249 and 221-220 ka. The geomagnetic field evolution is studied by methods of wavelet analysis, and the field generation process is shown to vary in the interval 300-180 ka.