我们汇集了西欧几个地区海面基底的古地磁资料,从西班牙北部经法国中央地块和阿摩力克地块直到德国的哈茨地块。资料分成两组,一组从晚泥盆至中石炭世(300—350百万年),另一组属下二迭世(270百万年)。就倾角来说,非常一致,这些地区都在赤道附近。由于在古纬度上没有明显差别,说明从早石炭世后这些单元就没有分离过。相反,偏角差异说明曾发生过旋转运动。对于早二迭世来说,人们15年前就发现要封闭比斯开湾来校正西班牙半岛的位置。尽管对此加以校正,但在晚泥盆、中石炭世偏角仍然十分离散,说明不同地区分别发生过顺时针或反时针转动。所有这些离散都与海西褶皱带 S 形一致,源于一个不明显的弧形,从而表明整个地区作为一个整体在海西造山期内发生了变形,而并非各自沿着一个垂直轴转动。变形区的宽度、变形深达前寒武基底这一事实,及人们观测到大陆地壳的加 We have collected paleomagnetic data from the basement of the sea in several parts of Western Europe from the northern part of Spain through the French Central and Amorick plots until the Hartz block in Germany. The data is divided into two groups, one from the Late Devonian to the Middle Carboniferous (300-350 million years) and the other belonging to the Second Permian (270 million years). In terms of inclination, it is very consistent that these areas are all near the equator. Since there is no obvious difference in paleosols, it shows that these units have not been separated since the Early Carboniferous. In contrast, the declination difference indicates that a rotational motion has occurred. For Early Last Century, people discovered the closure of the Bay of Biscay 15 years ago to correct the location of the Spanish peninsula. Despite this correction, the Middle Carboniferous declination is still very discrete in the late Devonian basin, indicating a clockwise or anticlockwise rotation in different regions. All of these discrepancies are consistent with the S-shaped Hercynian folds and originate from an insignificant arc, indicating that the entire area was deformed as a whole during the Hercynian orogeny and not along a vertical axis. The width of the deformation zone, the fact that the deformation has reached the Precambrian basement, and the fact that people have observed the increase of the continental crust