Abstract Palaeoclimatic data (thickness variations in the Elatina Formation periglacial varves in the Flinderes Range, South Australia) with a spatial resolution of about one year and a time period of about 1334 years dated to the Marinoan glaciation, 680 Myears ago (late Precambrian), were studied in order to reveal quasiperiodic variations in climate processes in the past. Seven hidden periodicities, i.e., 12, 22, 24, 26, 104, 157, and 316 years, were revealed with a significance level of amplitudes in the framework of the polyharmonic model from 4σ up to 16σ. It was found that some of the detected periodicities were similar to the current solar activity cyclicity.

中文翻译：

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来自晚前寒武纪（约 680 年前）的化石沉积层节律和当前的太阳活动周期

摘要 古气候数据（南澳大利亚弗林德斯山脉的 Elatina 组冰缘瓦斯的厚度变化），空间分辨率约为 1 年，时间段约为 1334 年，可追溯到 680 年前（晚前寒武纪）的马里诺冰川，研究以揭示过去气候过程的准周期性变化。揭示了七个隐藏周期，即 12、22、24、26、104、157 和 316 年，在从 4σ 到 16σ 的多谐模型框架中具有显着的幅度水平。发现一些检测到的周期与当前的太阳活动周期相似。