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<b>Abstract</b>— <p>Apatite fission track dating of Triassic (Anisium‒Norium) sandstones of the Severnaya borehole on Graham Bell Island of Franz Josef Land was performed. The Late Cretaceous age (~90 Ma) of the transition from the stage of relative temperature and tectonic stability to the stage of “rapid” rock exhumation has been established. The Late Cretaceous (Cenomanian‒Cognacian) stage of rock exhumation is widely manifested in the Arctic Basin and its frame and correlates with the stage of magmatism. It is suggested that these events record one of the stages of rifting development in the northern part of the North Atlantic and Arctic Basin, which is associated with reorganization of the direction of plate movement in the North Pacific Ocean.</p>

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Late Cretaceous (Cenomanian‒Coniacian) Stage of Rifting in the Northern Part of the North Atlantic and Arctic Basin

  • 期刊论文

  • 发表日期：

    2025年2月1日

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  • A. V. Zayonchek,
  • A. V. Soloviev

摘要

Abstract—

Apatite fission track dating of Triassic (Anisium‒Norium) sandstones of the Severnaya borehole on Graham Bell Island of Franz Josef Land was performed. The Late Cretaceous age (~90 Ma) of the transition from the stage of relative temperature and tectonic stability to the stage of “rapid” rock exhumation has been established. The Late Cretaceous (Cenomanian‒Cognacian) stage of rock exhumation is widely manifested in the Arctic Basin and its frame and correlates with the stage of magmatism. It is suggested that these events record one of the stages of rifting development in the northern part of the North Atlantic and Arctic Basin, which is associated with reorganization of the direction of plate movement in the North Pacific Ocean.