All but the Elgin Mine springs issue from the topographic low (see Fig. This could give rise to the peculiar thermal water composition of the four active springs in the Wilbur Mining District: Wilbur Hot Spring, Jones' Fountain of Life, Blanck's Spring, and the Elgin Mine springs. Geological Survey Menlo Park, CA 91025 deep rocks. INTRODUCTION White (1957) suggested that connate water underlies the Wilbur Mining District and that this water Is affected by low-grade metamorphism of J. From the CHij, HjS, and CO2 concentrations in the spring gases at Wilbur Hot Springs and from equations devised primarily for use in steam wells, reservoir temperatures from 227° to 242☌ are calculated. 'For this reason the Mg correction is not considered appropriate and the fluids are estimated to have originated at 230☌. The magnesium corrected geothermometer gives inconsistent temperatures suggesting that Mg enters the water during its passage from the reservoir to the surface. ![]() The Na-fC-Ca geothermometer applied to the four major spring groups in this area gives temperatures ranging from 220 to 2lOOC. 3 Septetrber 1979 A REEVALUATION OF GEOTHERMAL POTENTIAL OF THE WILBUR HOT SPRINGS AREA, CALIFORNIA ABSTRACT In a recent assessment of the geothermal potential of the Wilbur Mining District, it was estimated that a thennal brine at about 150☌ is present at depths less than 3 km. ![]() Geol^ertnal Resources Council, TRANSACTIONS, Vol.
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