Steam and hydrothermal alteration, Iceland
geothermal energy
Karstic spring, Crete, Greece (vertical)
groundwater
Springs issuing from basalt (Pan)
surface water resources, hydrology
Gravel quarry, CA.
mining, open-pit, groundwater. Resources
Water monitoring of spring (vertical)
groundwater
Groundwater staining along fractures
granite, groundwater, oxidation, alteration, weathering
Cave speleothems, Oregon (square)
travertine
Hot Spring and sinter deposits
groundwater, geothermal
Springs midway down alluvial fan, Furnace Creek, Death Valley, CA, and radial spring
groundwater, aerial
Desert spring along fault, Death Valley
paleoseismicity, groundwater, recent faulting, active
Sinter and hot spring (vertical)
groundwater
Crop circles, Idaho
agriculture, ground water, irrigation, arid, groundwater
Irrigation of potato fields, Idaho
agriculture, groundwater resources
Sinkhole, central Florida
Karst, weathering and erosion