Understanding Fluid Flow during Tectonic Reactivation: An Example from the Flamborough Head Chalk Outcrop (UK)

Figure 8

Schematization of the different phases of fluid flow within the chalk succession. (a) Chalk sedimentation. (b) Early synsedimentary fractures, fluid circulation probably coming from the compaction of underlying clays (Lower Cretaceous and Upper Jurassic) and associated dolomitization. (c) Late Cretaceous tectonic reactivation and fluid circulation likely coming from the Sherwood Sandstone and resulting in breccia formation.

(a)

(b)

(c)