High-resolution Stratigraphy: "Years, Months, Days, and Hours" Detected from Strata

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  • MASUDA Fujio
    Department of Geology and Mineralogy, Graduate School of Science, Kyoto University

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  • 超高分解能層序学：地層から読み取る「年・月・日・時」
  • チョウ コウ ブンカイノウ ソウ ジョガク チソウ カラ ヨミトル ネン ゲツ ニチ ジ

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Abstract

A new research field is introduced for strata science in geology. The new stratigraphy is that a layer, a bed and/or a band of “a year, a month, a day, and several hours” we actually experience everyday, are defined from strata. In this paper we introduce the following four case studies of high-resolution determination for 1) annual beds, 2) historical river-flooding beds, 3) tidal bands, and 4) cross-beds. We also describe new information obtained from the results of these high-resolution stratigraphic studies, which include : discovery of millennial oscillations of solar cycle from the 500 Ka lake varves (annual beds) date determination of every fluvial-flooding beds from the intercalated human wastes and, 600-million-year history of Earth's rotation detected from an annual band in fossils and tidal beds in strata.

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