TY - JOUR
T1 - Measured carbon dioxide emissions from Oldoinyo Lengai and the skewed distribution of passive volcanic fluxes
AU - Brantley, Susan Louise
AU - Koepenick, K. W.
PY - 1995/1/1
Y1 - 1995/1/1
N2 -
Airborne measurements of CO
2
released from Oldoinyo Lengai, the only carbonatite-erupting volcano in the world, reveal a CO
2
flux of 0.055 × 10
12
mol/yr. This flux is substantially smaller than that of Mount Etna. It is proposed and that the subaerial flux distribution may be a power-law distribution (fractal) rather than Gaussian. Although rigorous testing of the power-law nature of the flux distribution is impossible, the skewed nature of the distribution and low value of the power-law exponent suggest that simultaneous measurement of the 20 largest-flux volcanoes could yield an accurate assessment of the volcanic CO
2
flux. Normalizing the emission flux by scaling per unit crater area to investigate the extension of the power-law behavior to geothermal areas with lower gas fluxes yields a power-law exponent of ~1 and predicts a subaerial volcanic-metamorphic CO
2
flux of 6 × 10
12
mol/yr. -from Authors
AB -
Airborne measurements of CO
2
released from Oldoinyo Lengai, the only carbonatite-erupting volcano in the world, reveal a CO
2
flux of 0.055 × 10
12
mol/yr. This flux is substantially smaller than that of Mount Etna. It is proposed and that the subaerial flux distribution may be a power-law distribution (fractal) rather than Gaussian. Although rigorous testing of the power-law nature of the flux distribution is impossible, the skewed nature of the distribution and low value of the power-law exponent suggest that simultaneous measurement of the 20 largest-flux volcanoes could yield an accurate assessment of the volcanic CO
2
flux. Normalizing the emission flux by scaling per unit crater area to investigate the extension of the power-law behavior to geothermal areas with lower gas fluxes yields a power-law exponent of ~1 and predicts a subaerial volcanic-metamorphic CO
2
flux of 6 × 10
12
mol/yr. -from Authors
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U2 - 10.1130/0091-7613(1995)023<0933:MCDEFO>2.3.CO;2
DO - 10.1130/0091-7613(1995)023<0933:MCDEFO>2.3.CO;2
M3 - Article
AN - SCOPUS:84879888433
SN - 0091-7613
VL - 23
SP - 933
EP - 936
JO - Geology
JF - Geology
IS - 10
ER -