Conflow 1.0.5

By Larry Garver Mastin

U.S. Geological Survey--Cascades Volcano Observatory

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Conflow is a user-friendly program that calculates flow properties of magma-gas mixtures through eruptive conduits during steady explosive volcanic eruptions. It also calculates physical and thermodynamic properties of magma-gas-crystal mixtures. The attached zip file installs the program on any Windows PC. Details of the model are provided at:

To install the program, do the following:
1) Download the attached zip file to your computer
2) Open the zip file and extract the contents to a local directory.
3) double-click on the file "setup.exe" and follow instructions to install the program.
<nb:publications>Mastin, L.G., Ghiorso, M.S., 2000. A numerical program for steady-state flow of magma-gas mixtures through vertical eruptive conduits, USGS Open-File Report 00-209. U.S. Geological Survey, Vancouver, WA, p. 56.

Mastin, L.G., 2002. Insights into volcanic conduit flow from an open-source numerical model. Geochemistry, Geophysics, Geosystems 3, 10.1029.</nb:publications>

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Researchers should cite this work as follows:

  • Larry Garver Mastin (2011), "Conflow 1.0.5,"

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