High-Frequency Cyclicity in the Mediterranean Messinian Evaporites: Evidence for Solar–Lunar Climate Forcing
High-Frequency Cyclicity in the Mediterranean Messinian Evaporites: Evidence for Solar–Lunar Climate Forcing
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地中海墨西拿蒸发岩的高频循环：日月气候强迫的证据
DOI：
10.2110/jsr.2012.81
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发表时间：
2012
影响因子：
2
通讯作者：
C. Schreiber
中科院分区：
文献类型：
--
作者：
V. Manzi;R. Gennari;S. Lugli;M. Roveri;N. Scafetta;C. Schreiber
摘要各种沉积层序的沉积通常受气候条件的控制。通过对晚中新世两套蒸发岩系列(一套盐岩和一套石膏)的研究，恢复了约6 Ma梅西期盐度危机高峰时期的古气候和古环境条件，当时地中海盆地底部堆积了厚厚的蒸发岩沉积。这些蒸散量序列的频谱分析表明，在3-5年、9-9年、11-13年、20-27年和50-100年左右出现了明显的周期性峰值。与地中海西部现代降水资料的比较表明，在梅西尼亚盐度危机的顶峰时期，气候并不处于永久的蒸发阶段，而是处于一种动态的状态，蒸发岩的沉积受到类似于现代类似的准周期气候振荡的控制，包括准两年期振荡、厄尔尼诺南方振荡以及由月球和太阳诱导的十年至长期周期。特别是，我们发现了一个显着的准年代际振荡，具有显著的9年峰值，这在现代气温记录中也很常见，并出现在当代大西洋年代际振荡(AMO)指数和太平洋年代际振荡(PDO)指数中。这些周期在古代和现代的气候记录中都很常见，因为它们可以与太阳和日月潮汐周期联系在一起。在梅西尼期，地中海盆地和全球海洋在大陆分布、海洋大小、地理、水文连接和冰盖体积方面具有与现在不同的结构特征。对梅西尼期现代气候振荡的认识表明，尽管当地地理因素作为将地中海变成巨大卤水池的预条件因素，但外部气候强迫受日月循环的调节，在很大程度上独立于当地地理因素，调节了蒸发物的沉积。
Abstract The deposition of varved sedimentary sequences is usually controlled by climate conditions. The study of two late Miocene evaporite successions (one halite and the other gypsum) consisting of annual varves has been carried out to reconstruct the paleoclimatic and paleoenvironmental conditions existing during the acme of the Messinian salinity crisis, ~ 6 Ma, when thick evaporite deposits accumulated on the floor of the Mediterranean basin. Spectral analyses of these varved evaporitic successions reveal significant periodicity peaks at around 3–5, 9, 11–13, 20–27 and 50–100 yr. A comparison with modern precipitation data in the western Mediterranean shows that during the acme of the Messinian salinity crisis the climate was not in a permanent evaporitic stage, but in a dynamic situation where evaporite deposition was controlled by quasi-periodic climate oscillations with similarity to modern analogs including Quasi-Biennial Oscillation, El Nino Southern Oscillation, and decadal to secular lunar- and solar-induced cycles. Particularly we found a significant quasi-decadal oscillation with a prominent 9-year peak that is commonly also found in modern temperature records and is present in the contemporary Atlantic Multidecadal Oscillation (AMO) index and Pacific Decadal Oscillation (PDO) index. These cyclicities are common to both ancient and modern climate records because they can be associated with solar and solar-lunar tidal cycles. During the Messinian the Mediterranean basin as well as the global ocean were characterized by different configurations than at present, in terms of continent distribution, ocean size, geography, hydrological connections, and ice-sheet volumes. The recognition of modern-style climate oscillations during the Messinian suggests that, although local geographic factors acted as pre-conditioning factors turning the Mediterranean Sea into a giant brine pool, external climate forcings, regulated by solar–lunar cycles and largely independent from local geographic factors, modulated the deposition of the evaporites.
影响因子：
64.8
作者：
Tsuyoshi Watanabe;A. Suzuki;S. Minobe;Tatsunori Kawashima;K. Kameo;K. Minoshima;Y. M. Aguilar;Ryoji Wani;H. Kawahata;K. Sowa;T. Nagai;T. Kase
通讯作者：
Tsuyoshi Watanabe;A. Suzuki;S. Minobe;Tatsunori Kawashima;K. Kameo;K. Minoshima;Y. M. Aguilar;Ryoji Wani;H. Kawahata;K. Sowa;T. Nagai;T. Kase
影响因子：
4.6
作者：
M. Wyatt;S. Kravtsov;A. Tsonis
通讯作者：
M. Wyatt;S. Kravtsov;A. Tsonis