Abstract—

Detailed lithological, stratigraphic, and structural studies of the fold-thrust structures were conducted on New Siberia Island. We have established that the jointly deformed complexes of the Upper Cretaceous–Middle Neopleistocene are overlapped by undeformed sediments of the Upper Neopleistocene. This fact confirms the completion of the deformation process at the end of the Middle Neopleistocene. An additional argument excluding the ancient age of dislocations is the result of the fission track dating for apatites. The resulting track ages of apatites significantly exceeded the age of deformed rocks, which was reliably established by the other methods. In deformed complexes, unlithified permafrost rocks predominate. Folded structures are characterized by joint deformation of sedimentary rocks, formation ice and ice-ground, inconsistency of fold orientation and different direction of structural evolution in the northern and southern parts of the island New Siberia. Considering the correspondence of the established age of dislocations to the age of the largest Pleistocene glaciation, all these facts allow us to state that the fold-and-thrust deformations of the island New Siberia are glaciodislocations.

中文翻译：

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新西伯利亚岛（俄罗斯新西伯利亚群岛）的褶皱-冲断变形：年龄，形态和结构成因

摘要—

在新西伯利亚岛上进行了褶皱-冲断构造的详细岩性，地层学和构造研究。我们已经确定，上白垩统-新新世中期的共同变形复合体被上新世新世的未变形沉积物重叠。这一事实证实了中新世新世末期变形过程的完成。除了古老的脱位年龄之外，另一个争论是磷灰石裂变径迹的结果。产生的磷灰石轨道年龄大大超过了变形岩石的年龄，这是通过其他方法可靠地确定的。在变形的复合物中，未固化的永久冻土岩石占主导地位。折叠结构的特征是沉积岩，地层冰和冰地面的联合变形，新西伯利亚岛北部和南部的褶皱方向不一致和结构​​演化的方向不同。考虑到位错的确定年龄与最大的更新世冰川期的对应关系，所有这些事实使我们可以说，新西伯利亚岛的褶皱和冲断变形是冰川错位。