Akchagyl deposits of Western Turkmenistan were studied in order to identify the spectrum of paleosecular variations in the geomagnetic field in Pliocene–Quaternary sediments. The detrital nature of remanent magnetization is established. The spectra of geomagnetic field variations in the Gauss direct polarity intervals (Zau section) and Matuyam reverse polarity intervals (Issu section) in Western Turkmenistan were studied. The spectrum of secular variations in the geomagnetic field is distinguished, in particular, by periods of 8–10, 25–30, and 45–50 ka. The selected periods are stable throughout the Pleistocene and agree well with the results obtained from corresponding deposits in Armenia and Azerbaijan. It should be noted that the revealed discrete series often differ for different elements of the field and different time intervals.

中文翻译：

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土库曼斯坦西部上新世-第四纪沉积物中地磁场的古世变

研究了土库曼斯坦西部的 Akchagyl 矿床，以确定上新世-第四纪沉积物中地磁场的古世俗变化谱。确定了剩磁的碎屑性质。研究了土库曼斯坦西部高斯正极性区间（Zau剖面）和Matuyam反极性区间（Issu剖面）的地磁场变化谱。地磁场的长期变化谱是由 8-10、25-30 和 45-50 ka 的周期来区分的。所选时期在整个更新世都是稳定的，并且与从亚美尼亚和阿塞拜疆的相应矿床中获得的结果非常吻合。应该注意的是，对于场的不同元素和不同的时间间隔，揭示的离散序列通常是不同的。