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