Volcanic Ash, Puyehue

Practical significance

Interpretation of remote sensing data. Analogues of other planets' atmospheric dust, and dust in comets, asteroids, and circumstellar shells

Origin

The Puyehue ash sample corresponds to the June 2011 Puyehue-Cordón Caulle complex eruption. The sample was collected at a distance of around 150 km in the Comallo region.

Main constituent
Rhyolitic obsidian
Color
Light gray
Particle size Mie: reff (μm)
8.6
Particle size Mie: veff
2.2
Particle size Fraunhofer: reff (μm)
5.0
Particle size Fraunhofer: veff
4.4
Size distribution plot:
Size Distribution Puyehue
Size distribution table
size_puyehue.txt
SEM/TEM images:
Puyehue SEM Image 1
Puyehue SEM Image 2
All SEM/TEM images (zip file)
sem_puyehue.zip
Scattering matrix (1) wavelength in nm
647.00 nm
Scattering matrix (1) table
matrix_puyehue_647nm.txt
Scattering matrix (1) plot:
Scattering matrix elements Puyehue
Synthetic scattering matrix (1) wavelength in nm
647.00nm
Synthetic scattering matrix (1) table M
extra_puyehue_647_M.txt
Synthetic scattering matrix (1) table F
extra_puyehue_647_F.txt
Refractive index

1.48 + i0.00027 (647nm) (Pollack et al. 1973)

Angle range (deg)
[3,177]
Reference/s
Merikallio et al., 2015