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首页> 外文期刊>Earth and Planetary Science Letters: A Letter Journal Devoted to the Development in Time of the Earth and Planetary System >A box model of the blocked-outflow scenario for the Messinian Salinity Crisis
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A box model of the blocked-outflow scenario for the Messinian Salinity Crisis

机译：墨西尼盐度危机的外流情景的盒模型

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摘要

Part of the kilometre-thick Messinian evaporites of the Mediterranean basin is thought to have formed in a configuration of continuous inflow of water and salt from the Atlantic Ocean, in combination with blocked return flow. This mechanism is here examined for the first time quantitatively using a simple box model with parametrised exchange between sub-basins and including a representation of mixing. We also explore systematically the conditions under which the blocked-outflow state arises. The main results are (1) the rate of salinity increase is fast, (2) the western and eastern sub-basin evolve in concert except when exchange at the connecting strait is greatly reduced and then only when the basins are poorly stratified, and (3) near complete separation from the Atlantic is required to reach saturation unless Mediterranean waters are strongly stratified. (c) 2006 Elsevier B.V. All rights reserved.
机译：据认为，地中海盆地部分千公里厚的墨西尼蒸发岩形成为水和盐连续不断地从大西洋流入的构造，并且回流受阻。首次使用简单的箱形模型对这种机理进行了定量研究，该模型具有在子流域之间进行参数化交换并包括混合表示的功能。我们还系统地探讨了出现阻塞流出状态的条件。主要结果是（1）盐度增加速度快;（2）西部和东部次流域协调发展，除非连接海峡的交换量大大减少，然后才是盆地分层较差的情况，以及（ 3）除非地中海水域强烈分层，否则需要与大西洋完全隔离才能达到饱和。 （c）2006 Elsevier B.V.保留所有权利。

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