Core Surprise: What’s Inside a Plate Boundary Fault in Scotland
Lucy Mckay, Strathclyde University
The core of the Highland Boundary Fault contains some surprising finds. Digging to expose the fault core near Stonehaven revealed a remarkable sequence of clay and microfossils ‘inside’ this ancient plate boundary fault. Surprisingly the fault core consists of four distinct clay-rich units that remain unmixed. The internal structure of the fault core (i.e., thickness, composition, microstructure) has similarities to active plate boundary faults like the San Andreas fault. This talk will provide an overview of these surprising discoveries and discuss their implications for understanding how earthquakes behave at plate boundary faults.
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