Table 3.

Table T3. X-ray diffraction identification of minerals in pristine fault gouge.

Core, section,
interval (cm) Description Major (minor) minerals

180-1117A-

1R-1, 7-8

Fault gouge

Chrysotile, antigorite

1R-1, 24-25

Fault gouge

Talc, chlorite, calcite

1R-2, 0-1

Fault gouge

Talc, chlorite, calcite

1R-2, 13-14

Fault gouge

Talc, chrysotile, calcite

1R-2, 52-53

Fault gouge

Talc, calcite, chrysotile (chlorite)

1R-2, 58-59

Fault gouge

Lizardite, calcite, talc

1R-3, 1-2

Fault gouge

Calcite, chrysotile, talc (chlorite)

1R-3, 71-72

Fault gouge

Ankerite, talc, chrysotile (chlorite)

2R-CC, 9-10

Fault gouge

Talc, calcite, chlorite (quartz, amphibole)

Core, section, interval (cm)	Description	Major (minor) minerals
180-1117A-
1R-1, 7-8	Fault gouge	Chrysotile, antigorite
1R-1, 24-25	Fault gouge	Talc, chlorite, calcite
1R-2, 0-1	Fault gouge	Talc, chlorite, calcite
1R-2, 13-14	Fault gouge	Talc, chrysotile, calcite
1R-2, 52-53	Fault gouge	Talc, calcite, chrysotile (chlorite)
1R-2, 58-59	Fault gouge	Lizardite, calcite, talc
1R-3, 1-2	Fault gouge	Calcite, chrysotile, talc (chlorite)
1R-3, 71-72	Fault gouge	Ankerite, talc, chrysotile (chlorite)
2R-CC, 9-10	Fault gouge	Talc, calcite, chlorite (quartz, amphibole)