Estimation of hot spring water input and evaporation at Pyramid Lake, Nevada, USA
Stable isotope and major and trace element compositions have been analyzed for Pyramid Lake waters, Truckee River water, and hot spring water. Simple calculations to model the composition of Pyramid Lake waters using conservative components (B, Bt, Cl, K, Na, SO4, SO4-δ34S), mixing between Truckee River and hot spring water (PYR1) compositions, and subsequent evaporation produce a consistent set of Truckee River water: hot spring water (PYR1) mixing ratios and amount of evaporative concentration. These calculations imply a hot spring discharge rate of between 240 and 760 l/sec into the lake, which represents a high discharge rate, but feasible in light of known current and historical hot spring activity in the area. These results confirm the promising nature of the region as a geothermal exploration target area, and suggest that the composition of the lake waters can largely be explained by mixing of Truckee River water and hot spring waters, together with simple evaporation.
S.R.Poulson M.F.Coolbaugh C.Sladek
Dept.Geological Sci.& Eng.MS-172, University of Nevada-Reno, Reno, USA Great Basin Center for Geothermal Energy, University of Nevada-Reno, Reno, USA
国际会议
第十二届水-岩相互作用国际研讨会(P0roceedings of the 12th International Symposium on Water-Rock Interaction)
昆明
英文
245-249
2007-07-31（万方平台首次上网日期，不代表论文的发表时间）