FRAC — Fracture Spacing¶
Path: PROJ → LOCA → FRAC · Family: Ground Description & Field Logging
Editions: 4.0.3 – 4.2
Key chain
Identified by LOCA_ID, FRAC_FROM, FRAC_TO, FRAC_SET. Inherits LOCA_ID from LOCA.
| Heading | Status | Type | Unit | Description |
|---|---|---|---|---|
LOCA_ID (key) |
KEY | ID |
Location identifier | |
FRAC_FROM (key) |
KEY | 2DP |
m | Depth to top in hole, or distance to start on traverse, of the zone |
FRAC_TO (key) |
KEY | 2DP |
m | Depth to base in hole, or distance to end on traverse, of the zone |
FRAC_SET (key) |
KEY | X |
Discontinuity set reference | |
FRAC_IMAX |
OTHER | XN |
mm | Maximum fracture spacing over zone |
FRAC_IAVE |
OTHER | XN |
mm | Average fracture (modal) spacing over zone |
FRAC_IMIN |
OTHER | XN |
mm | Minimum fracture spacing over zone |
FRAC_FI |
OTHER | XN |
Fracture Index / frequency over zone (fractures per metre) | |
FRAC_REM |
OTHER | X |
Comments on fracture set | |
FILE_FSET |
OTHER | X |
Associated file reference (e.g. logging field sheets) |