| Table 1b. Thermal Data from Selected Intervals of Borehole LAH, Nevada | |||||||||||
| Depth | Thermal Conductivity | Heat | Adjusted | Adjusted | |||||||
| Range | Lithology | Gradient | W m-1 K-1 | Flow (2) | Porosity (3) | Conductivity (4) | Heat Flow (5) | ||||
| m | °C km-1 | N | <K> (1) | mW m-2 | % | W m-1 K-1 | mW m-2 | ||||
| 100-300 | Interbedded | 76.37±.27 | 12 | 2.14±.16 | 163±13 | 37.5 | 1.32 | 101 | |||
| 600-800 | clay, silt and sand; | 79.35±.11 | 10 | 1.51±.06 | 120±5 | 20 | 1.25 | 99 | |||
| 800-1000 | increased lithification | 74.69±.12 | 13 | 1.56±.08 | 117±5 | 15 | 1.34 | 100 | |||
| with depth | |||||||||||
| 1000-1200 | Limestone, sandstone | 64.99±.32 | 12 | 1.72±.04 | 112±3 | 10 | 1.54 | 100 | |||
| siltstone and shale | |||||||||||
| 1200-1400 | Rhyolitic tuff | 55.15±.25 | 14 | 1.98±.09 | 109±5 | 7 | 1.82 | 100 | |||
| (1) grain conductivities | |||||||||||
| (2) heat flow calculated assuming zero porosity | |||||||||||
| (3) calculated porosity assuming 7% porosity for rhyolitic tuff and constant heat flow | |||||||||||
| (4) conductivity, adjusted for calculated porosity | |||||||||||
| (5) gradient x adjusted conductivity | |||||||||||