Potential for travertine formation

Fossil Creek, Arizona

John Malusa, Steven T. Overby, Roderic A Parnell

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

Chemical analyses of water emanating from Fossil Springs in Central Arizona were conducted to predict changes in travertine deposition related to changes in stream discharge caused by diversion for hydroelectric power generation. During spring of 1996, water was sampled at 15 locations during normal seepage flow in a 6.7 km reach below Fossil Springs and at full baseflow during turbine maintenance. Analyses resulted in a rate of 11,923 kg d-1 of CaCO3 precipitated from 1218 l s-1 of water emanating from the springs, while flows of 5.6 l s-1 that seep past a diversion dam produced 46 kg d-1 of CaCO3 precipitation. Active travertine dams currently occur predominantly below the Irving hydroelectric powerplant with partial return of diverted flow back into the natural channel. The lower reach resulted in 519 kg d-1 of CaCO3 precipitated from the return of 56.6 l s-1 with a reduced rate of precipitation during surface runoff conditions due to a dilution effect. Artificial substrates were located at sites in the lower reach for comparison with mass transfer rates derived from changes in water chemistry. Comparison between actual precipitation rates and overall mass transfer rates suggested preferential deposition was occurring at dam locations. Rates of mass transfer for high flow were greater than lower flow. Overall, mass transfer rates for the upper reach were proportional to the flow velocities with total mass transfers for both flows being approximately equal.

Original languageEnglish (US)
Pages (from-to)1081-1093
Number of pages13
JournalApplied Geochemistry
Volume18
Issue number7
DOIs
StatePublished - Jul 1 2003

Fingerprint

travertine
Mass transfer
fossil
mass transfer
Dams
Springs (water)
Water
dam
Hydroelectric power
Seepage
Runoff
Flow velocity
Dilution
Power generation
artificial substrate
hydroelectric power
Turbines
baseflow
creek
rate

ASJC Scopus subject areas

  • Geochemistry and Petrology

Cite this

Potential for travertine formation : Fossil Creek, Arizona. / Malusa, John; Overby, Steven T.; Parnell, Roderic A.

In: Applied Geochemistry, Vol. 18, No. 7, 01.07.2003, p. 1081-1093.

Research output: Contribution to journalArticle

Malusa, John ; Overby, Steven T. ; Parnell, Roderic A. / Potential for travertine formation : Fossil Creek, Arizona. In: Applied Geochemistry. 2003 ; Vol. 18, No. 7. pp. 1081-1093.
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