The three metamorphic belts of the Hellenides: a review and a kinematic interpretation
The three metamorphic belts of the Hellenides: a review and a kinematic interpretation
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希腊化的三个变质带：回顾和运动学解释
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发表时间：
1984
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通讯作者：
D. Papanikolaou
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作者：
D. Papanikolaou
在希腊族三个变质带中获得的新结果表明，每个变质带都有不同的结构、大地构造背景和演化。伯罗奔尼撒半岛-克里特岛的外部变质带可能是在一个不断演化的岛弧系统附近的推覆运动的结果。发生在这个外部带的蓝片岩是外来的，并已被传输与其他推覆体的外部碳酸盐台地的前阿普利亚-Plattenkalk-Ionian-Tripolitza-Almyropotamos单位。这意味着，只有一个真正的蓝片岩域，在基克拉迪地区开始？始新世早期。运动学解释是基于a-和b-结构的区别和不同域之间的剪切带的性质，特别是下面的变质Hellenides和上面的非变质Hellenides之间的剪切带。在北方Pelagonian带中可能存在Kastoria的下古生代变质沉积序列，这表明上覆的含蛇绿岩的Almopias单元来自海西域。Kastoria沉积序列、Vertiskos的蛇绿岩和Pangeon的碳酸盐台地被认为是可能的海西造山带的最有可能的元素。
Summary New results obtained in the three metamorphic belts of the Hellenides suggest that each belt has a different structure, geotectonic setting and evolution. The external metamorphic belt of Peloponnesus-Crete has probably resulted from nappe movement in the vicinity of an evolving island arc system. The blueschists occurring within this external belt are allochthonous and have been transported with other nappes over the external carbonate platform of the Pre-Apulian-Plattenkalk-Ionian-Tripolitza-Almyropotamos Units. This implies that there was only one true blueschist domain, initiated in the Cycladic area during ?Early Eocene. The kinematic interpretation is based on the distinction of a- and b-structures and on the nature of the shear zones between the different domains, especially that between the metamorphic Hellenides below and the non-metamorphic Hellenides above. The existence of the probably Lower Palaeozoic meta-sedimentary sequence of Kastoria in the northern Pelagonian zone indicates that the overlying, ophiolite-bearing Almopias unit has been derived from within the Hercynian domain. The Kastoria sedimentary sequence, the ophiolites of Vertiskos and the carbonate platform of Pangeon are considered to be most likely elements of a probable Hercynian orogeny.