An Analysis of thermal data from the vicinity of Cajon Pass, California
1986; United States Department of the Interior; Linguagem: Inglês
10.3133/ofr86468
ISSN2332-4899
AutoresJ.H. Sass, Arthur H. Lachenbruch, S.P. Galanis, Robert J. Munroe, Thomas H. Moses,
Tópico(s)Hydrocarbon exploration and reservoir analysis
ResumoTwenty-two heat-flow determinations and eight estimates (from thermal gradients) in the region near Cajon Pass indicate a somewhat more complex thermal regime than was heretofore apparent.At the Cajon Pass site, a combination of Pleistocene-Holocene uplift and erosion, topography, and a steeply dipping but poorly characterized contact between rocks of differing thermal conductivity introduce large uncertainties into the value for regional heat flow to 1.8 km.Heat flow near the San Andreas fault and within the Mojave Block averages about 70 mWm~2 but may be underestimated by 10% or so owing to systematic effects of climatic changes and downward water flow in the upper 150 to 200 meters.
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