Articles | Volume 11, issue 5
Solid Earth, 11, 1931–1945, 2020
https://doi.org/10.5194/se-11-1931-2020

Special issue: Faults, fractures, and fluid flow in the shallow crust

Solid Earth, 11, 1931–1945, 2020
https://doi.org/10.5194/se-11-1931-2020

Research article 28 Oct 2020

Research article | 28 Oct 2020

Near-surface Palaeocene fluid flow, mineralisation and faulting at Flamborough Head, UK: new field observations and U–Pb calcite dating constraints

Nick M. W. Roberts et al.

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AR by Nick Roberts on behalf of the Authors (22 Jul 2020)  Author's response    Manuscript
ED: Publish as is (06 Sep 2020) by Fabrizio Balsamo
ED: Publish as is (09 Sep 2020) by CharLotte Krawczyk(Executive Editor)
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Short summary
We characterise a well-known fractured and faulted exposure of Cretaceous chalk in NE England, combining field observations with novel U–Pb calcite dating. We show that the faulting and associated fluid flow occurred during the interval of ca. 64–56 Ma, predating earlier estimates of Alpine-related tectonic inversion. We demonstrate that the main extensional fault zone acted as a conduit linking voluminous fluid flow and linking deeper sedimentary layers with the shallow subsurface.