Experimentally deformed feldspar aggregates

 

Figure caption

Experimentally deformed feldspar aggregates

 

Starting material / cataclastic flow / regime 1

 

32

 

TA shortened 15% at 20°C, 10-5/sec, and 800 MPa; brittle fault with stress drop.

TA shortened 15% at 20°C, 10-5/sec, 800 MPa. Sample underwent brittle failure (seismic, with sudden stress drop) along a fault at ~ 30° to s1 which formed from the coalescence of axial (mode I) cracks. The fine-grained fault gouge appears black. (W546)