Geochemistry of rivers in Panama

R. S. Harmon, W. B. Lyons, S. T. Goldsmith, A. Carey, S. Welch, K. Welch, I. Fórizs, D. Long, H. Mitasova

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

From 2005–09, 103 rivers, 92 streams, and 15 soil seeps were sampled across a transect of ∼500 km in Panama from the Lago Bayano area to the Costa Rica border. Measured ranges of temperature, TDS and pH are: 12.7 to 34.0°C, 6 to 1901 mg/l, and 5.3 to 8.7. Average dissolved constituent contents (in µmol/liter) are: Si = 506, Ca2+ = 265, Mg2+ = 220, Na+ = 357, K+ = 43, Cl = 224, NO3 = 31, SO4 2− = 55. Average surface water TDS is low (TDS = 143 ± 145 mg/l), suggesting a short residence time in the weathering zone for infiltrating precipitation. Compositional variability reflects both the nature of the terrain from which drainage is occurring and time since the last strong precipitation event. Calculated long-term chemical weathering yields range from 1.7 to 284 tons/km2/yr, lying toward the high end of the ranges reported in the literature. CO2 consumption rates range from 188 to 3951 × 103 mol/km2/yr, again falling toward the upper end of the ranges observed in other studies.

Original languageEnglish
Title of host publicationWater-Rock Interaction
PublisherCRC Press
Pages253-256
Number of pages4
ISBN (Electronic)9781439862995
ISBN (Print)9780415604260
Publication statusPublished - Jan 1 2010

Fingerprint

chemical weathering
residence time
weathering
transect
geochemistry
drainage
surface water
river
soil
temperature
rate
consumption
border

ASJC Scopus subject areas

  • Environmental Science(all)
  • Earth and Planetary Sciences(all)

Cite this

Harmon, R. S., Lyons, W. B., Goldsmith, S. T., Carey, A., Welch, S., Welch, K., ... Mitasova, H. (2010). Geochemistry of rivers in Panama. In Water-Rock Interaction (pp. 253-256). CRC Press.

Geochemistry of rivers in Panama. / Harmon, R. S.; Lyons, W. B.; Goldsmith, S. T.; Carey, A.; Welch, S.; Welch, K.; Fórizs, I.; Long, D.; Mitasova, H.

Water-Rock Interaction. CRC Press, 2010. p. 253-256.

Research output: Chapter in Book/Report/Conference proceedingChapter

Harmon, RS, Lyons, WB, Goldsmith, ST, Carey, A, Welch, S, Welch, K, Fórizs, I, Long, D & Mitasova, H 2010, Geochemistry of rivers in Panama. in Water-Rock Interaction. CRC Press, pp. 253-256.
Harmon RS, Lyons WB, Goldsmith ST, Carey A, Welch S, Welch K et al. Geochemistry of rivers in Panama. In Water-Rock Interaction. CRC Press. 2010. p. 253-256
Harmon, R. S. ; Lyons, W. B. ; Goldsmith, S. T. ; Carey, A. ; Welch, S. ; Welch, K. ; Fórizs, I. ; Long, D. ; Mitasova, H. / Geochemistry of rivers in Panama. Water-Rock Interaction. CRC Press, 2010. pp. 253-256
@inbook{6f45febb8a5e49c19cbfbbf9569ad86f,
title = "Geochemistry of rivers in Panama",
abstract = "From 2005–09, 103 rivers, 92 streams, and 15 soil seeps were sampled across a transect of ∼500 km in Panama from the Lago Bayano area to the Costa Rica border. Measured ranges of temperature, TDS and pH are: 12.7 to 34.0°C, 6 to 1901 mg/l, and 5.3 to 8.7. Average dissolved constituent contents (in µmol/liter) are: Si = 506, Ca2+ = 265, Mg2+ = 220, Na+ = 357, K+ = 43, Cl− = 224, NO3 − = 31, SO4 2− = 55. Average surface water TDS is low (TDS = 143 ± 145 mg/l), suggesting a short residence time in the weathering zone for infiltrating precipitation. Compositional variability reflects both the nature of the terrain from which drainage is occurring and time since the last strong precipitation event. Calculated long-term chemical weathering yields range from 1.7 to 284 tons/km2/yr, lying toward the high end of the ranges reported in the literature. CO2 consumption rates range from 188 to 3951 × 103 mol/km2/yr, again falling toward the upper end of the ranges observed in other studies.",
author = "Harmon, {R. S.} and Lyons, {W. B.} and Goldsmith, {S. T.} and A. Carey and S. Welch and K. Welch and I. F{\'o}rizs and D. Long and H. Mitasova",
year = "2010",
month = "1",
day = "1",
language = "English",
isbn = "9780415604260",
pages = "253--256",
booktitle = "Water-Rock Interaction",
publisher = "CRC Press",

}

TY - CHAP

T1 - Geochemistry of rivers in Panama

AU - Harmon, R. S.

AU - Lyons, W. B.

AU - Goldsmith, S. T.

AU - Carey, A.

AU - Welch, S.

AU - Welch, K.

AU - Fórizs, I.

AU - Long, D.

AU - Mitasova, H.

PY - 2010/1/1

Y1 - 2010/1/1

N2 - From 2005–09, 103 rivers, 92 streams, and 15 soil seeps were sampled across a transect of ∼500 km in Panama from the Lago Bayano area to the Costa Rica border. Measured ranges of temperature, TDS and pH are: 12.7 to 34.0°C, 6 to 1901 mg/l, and 5.3 to 8.7. Average dissolved constituent contents (in µmol/liter) are: Si = 506, Ca2+ = 265, Mg2+ = 220, Na+ = 357, K+ = 43, Cl− = 224, NO3 − = 31, SO4 2− = 55. Average surface water TDS is low (TDS = 143 ± 145 mg/l), suggesting a short residence time in the weathering zone for infiltrating precipitation. Compositional variability reflects both the nature of the terrain from which drainage is occurring and time since the last strong precipitation event. Calculated long-term chemical weathering yields range from 1.7 to 284 tons/km2/yr, lying toward the high end of the ranges reported in the literature. CO2 consumption rates range from 188 to 3951 × 103 mol/km2/yr, again falling toward the upper end of the ranges observed in other studies.

AB - From 2005–09, 103 rivers, 92 streams, and 15 soil seeps were sampled across a transect of ∼500 km in Panama from the Lago Bayano area to the Costa Rica border. Measured ranges of temperature, TDS and pH are: 12.7 to 34.0°C, 6 to 1901 mg/l, and 5.3 to 8.7. Average dissolved constituent contents (in µmol/liter) are: Si = 506, Ca2+ = 265, Mg2+ = 220, Na+ = 357, K+ = 43, Cl− = 224, NO3 − = 31, SO4 2− = 55. Average surface water TDS is low (TDS = 143 ± 145 mg/l), suggesting a short residence time in the weathering zone for infiltrating precipitation. Compositional variability reflects both the nature of the terrain from which drainage is occurring and time since the last strong precipitation event. Calculated long-term chemical weathering yields range from 1.7 to 284 tons/km2/yr, lying toward the high end of the ranges reported in the literature. CO2 consumption rates range from 188 to 3951 × 103 mol/km2/yr, again falling toward the upper end of the ranges observed in other studies.

UR - http://www.scopus.com/inward/record.url?scp=85055179064&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85055179064&partnerID=8YFLogxK

M3 - Chapter

SN - 9780415604260

SP - 253

EP - 256

BT - Water-Rock Interaction

PB - CRC Press

ER -