Noble-gas evidence for geothermal activity in a karstic terrain: Rocky Mountains,Canada.     

Emanuel Mazor  Robert O. van Everdingen  H.Roy Krouse 《Geochimica et cosmochimica acta》1983,47(6):1111-1115

Geothermally heated fluids are identified as a component in warm (up to 54°C) springs in the southern Canadian Rocky Mountains. High concentrations of radiogenic He (10^?3 ccSTP/cc gas) and atmospheric Ne, Ar, Kr and Xe in the gases that vigorously bubble at the Fairmont Hot Spring, assign the latter to be a “drowned” fumarole, fed by geothermal steam. Up to 75% depletions in the atmospheric noble gases in several warm springs indicate contributions of residual geothermal water. On the other hand, in a few cases noble gases were found in excess (W) over the expected concentrations in airequilibrated recharge water. The observed “reversed” pattern of w_nc >W_Ar >W_kr >W_xe is interpreted as excess air, incorporated during recharge through karstic conduits. The mixing ratios of geothermal and karstic waters can be deduced.  相似文献   

Flow variability and hillslope hydrology     

D. D. Huff  R. V. O'Neill  W. R. Emanuel  J. W. Elwood  J. D. Newbold 《地球表面变化过程与地形》1982,7(1):91-94

Examination of spatial variability of streamflow in headwater areas can provide important insight about factors that influence hillslope hydrology. Detailed observations of variations in stream channel input, based on a tracer experiment, indicate that topography alone cannot explain flow variability. However, determination of changes in channel input on a small spatial scale can provide valuable clues to factors, such as structural geology that control subsurface flows.  相似文献