Experimentally deformed quartzo-feldspathic rocks

 

Annealing & melting

Experimentally deformed quartzo-feldspathic rocks

 

starting material & regime1 / regime 2 / annealing & melting

 

List of microstructures

 

 

 

 

64

 

EA shortened 60% at 800°C, 10-6/sec, and 1200 MPa; quartz regime 2 dislocation creep, feldspars semi-brittle flow (compare with 65).

65

 

EA shortened 60% at 800°C, 10-6/sec, and 1200 MPa (same as 64); then annealed at 900ūC for 120 hrs.

 

 

 

 

66

 

EA shortened 67% at 900°C, 10-5/sec, and 1200 MPa with no melt; quartz regime 2 dislocation creep, feldspars semi-brittle (compare with 67).

67

 

EA shortened 67% at 900°C, 10-5/sec, and 1200 MPa; ~4% melt has resulted in cataclastic flow.