Salt-Stock Families in Northwestern Germany
Salt-Stock Families in Northwestern Germany
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德国西北部的盐库存科
DOI：
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发表时间：
1968
期刊：
影响因子：
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通讯作者：
D. Sannemann
中科院分区：
文献类型：
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作者：
D. Sannemann
在德国北部，有超过200种已知的盐库，它们是由泽希斯坦盐组成的。由于具有良好的地质条件，利用反射地震资料重建盐类的历史发育成为可能。单一盐储备的发展似乎是从盐的积累开始的，即所谓的“盐枕”。在后期，上覆地层破裂，使底辟形成。在德国北部，盐种之间的基因联系是可以辨认的。一些较大的盐库群被归类为“盐库族”。这样的盐库家族由几种盐库组成，这些盐库围绕着基因最古老的盐库，被称为“母亲盐库”。邻近盐群的边缘向斜在远离中心的地方变得更年轻。据推测，造成母盐组形成的地质冲力部分是构造作用，而随后盐组的波阵式生长则是纯盐动力学的，即在重力作用下盐的运动。盐在远距离上的水平波阵状流动的绝对速率平均约为每年0.3毫米。
In northern Germany there are more than 200 known salt stocks which are composed of Zechstein salt. Because of favorable geologic conditions, it was possible to reconstruct the historical development of the salt stocks with the aid of reflection-seismic surveys. The development of a single salt stock appears to have started with an accumulation of salt, the so-called "salt pillow." At a later stage, the overlying strata broke, allowing the diapir to form. In northern Germany, genetic connections between salt stocks are recognizable. Some of the larger groups of salt stocks are classified as "salt-stock families." Such salt-stock families consist of several salt stocks grouped around the genetically oldest, which is said to be the "mother salt stock." The rim synclines of he adjacent salt stocks become younger away from the center. The geologic impulse causing the formation of mother salt stocks is supposedly partly tectonic, whereas the subsequent wave-front-like growth of the salt-stock families took place in a purely halokinetic way, that is, by the movement of salt under the influence of gravity. The absolute rate of the horizontal wave-front-like flow of the salt over great distances averages about 0.3 mm a year.