Geofluids / 2018 / Article / Fig 3

Research Article

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

Figure 3

Microscopic observations under plane-polarized transmitted light and crossed polars . (a) Calcite-cemented breccia (Group II) with chalk fragments showing a typical jigsaw puzzle. Group I veins within chalk fragments. (b) and (c) Fringe of impurities along a chalk fragment within the calcite-cemented breccia. Note the rhombohedral crystal ghosts (yellow arrow).

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