Tidal rhythmites and their implications
Tidal rhythmites and their implications
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DOI：
10.1016/j.earscirev.2004.07.004
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发表时间：
2005-02
影响因子：
12.1
通讯作者：
Rajat Mazumder;M. Arima
中科院分区：
文献类型：
--
作者：
Rajat Mazumder;M. Arima
潮汐韵律体是沉积盆地中海洋条件的明确证据，可以保存天文引起的潮汐周期的记录。然而，与现代潮汐和潮汐沉积不同，对古代潮汐韵律的分析并不简单。本文重点介绍了近十年来潮汐韵律岩研究取得的进展，综述了从古代潮汐韵律岩中提取月球轨道周期的方法、利用潮汐石背后的数学原理以及它们的局限性和不确定性。研究表明，对古潮汐节律的分析可以帮助我们准确地估计出古月球的轨道周期。然而，从潮汐节律确定遥远地质历史中的地月绝对距离和地球的古地球运动参数是不明确的，因为很难确定古代月球恒星月的绝对长度。
Tidal rhythmites are unequivocal evidence of marine conditions in sedimentary basins and can preserve a record of astronomically induced tidal periods. Unlike modern tide and tidal deposits, analysis of ancient tidal rhythmites, however, is not straightforward. This paper highlights the advances made in the tidal rhythmite research in the last decade and reviews the methodologies of extracting lunar orbital periods from ancient tidal rhythmites, the mathematics behind the use of tidalites, and their limitations and uncertainties. We have shown that analysis of ancient tidal rhythmite may help us to estimate the palaeolunar orbital periods in terms of lunar days/month accurately. Determination of absolute Earth–Moon distances and Earth's palaeorotational parameters in the distant geological past from tidal rhythmite, however, is ambiguous because of the difficulties in determining the absolute length of the ancient lunar sidereal month.