Chemistry of Crater Lake, Oregon, and nearby springs in relation to weathering
Nathenson M and Thompson JM. 1990. Chemistry of Crater Lake, Oregon, and nearby springs in relation to weathering. Pages 115-126. In Drake ET, Larson GL, Dymond J, Collier R (ed): Crater Lake: An ecosystem study. Corvallis, Oregon. June 18-22, 1988. San Francisco. 69th Annual Meeting of the Pacific Division/American Association for the Advancement of Science
"The chemistry of most cold springs in the Crater Lake area is explained by the process of weathering of volcanic glass and clinopyroxene to kaolinite clay by water containing dissolved carbon dioxide. At higher concentrations of bicarbonate, the simple weathering process is modified by saturation to the limit the amount of silica that can be retained in solution. Springs that do not satisfy this model are the soda springs in the Wood River area. The soda springs is an unlikely source of the dissolved constituents in Crater Lake, but its chemistry does demonstrate that, locally, a substantial amount of carbon dioxide is available in the subsurface to drive chemical reactions. The springs in the Wood River area are chemically quite similar to Crater Lake. The process that generates the chemistry of the Wood River area springs could be the same as the process that generates the chemistry of the inflow to Crater Lake, or the similarity of the chemistry could be a coincidence. Until the source of water of both is characterized, it is not possible to settle this question."
- Type
- Conference Proceeding Paper
- Authors
- Nathenson, M; Thompson, J
- Units
- CRLA
- Keywords
- Aquatic Sciences, Chemical Analysis, Chemical process, Chemical weathering, Chemistry, Geology, Springs, Water Chemistry, Water Quality, Weathering