Phase Diagram Movies Docs

Movies of phase diagrams for adiabatic decompression melting of peridotite and pyroxenite. Includes mixed sources that are in thermal but not chemical equilibrium. Flash not required browsing movies.

MAGMA logo: a volcano with a fire fountain based on the Caltech logo

How to view the movies

If you already have a forum account, you can log in to the right; otherwise please register! (You only need do this if you want to use Microsoft Edge for movie playbac

How to choose the movies

Open the Movie Selector and choose the layout and number of movies. S-X (entropy-composition) and T-X (temperature-composition) movies are the larger plots; temperature, melt fraction, melt productivity and entropy versus pressure are the smaller plots. Plots options, such as binary system, source type, mixing ratio and melt regime can be applied separately or copied to all plots. Choose between 'Heterogeneous' (pyroxenite and peridotite source in thermal but not chemical equilibrium) or 'Homogeneous' (a single source with the same bulk composition). A 'Normal' mixing ratio means that the combined pyroxene and depleted perdotite have a fertile mantle-like composition; 'Low pyroxenite' gives an overall more depleted source and 'High pyroxenite' a more enriched one.

Buttons are provided for playing the combined movie in a browser window, downloading the .swf file, printing (displaying the frame for a chosen pressure, without movie controls, so that the image can be saved) and saving the query so that the same combination of movies can be revisited without using the Movie Selector. By default output will be in Flash and, for various reasons, the pages use frames if possible. The script should detect iPads and adjust accordingly. On any platform, you can also toggle between using and not using Flash and / or frames manually.

Known bugs and limitations

  • There is almst no documentation! Basic documentation, including more detail about Movie Selector options and movie playback controls, will be posted soon. Full explanation, with examples taken from the available movies, will follow later.
  • The combined movie files may take a long time to load, especially on mobile devices. Please be patient: once loaded, playback speed should be fine.
  • The dimensions of the embedded movies are calculated using the browser window height, at the time of loading. If a movie, like the two-plot example shown here, is not displaying correctly then try resizing the window (e.g. reduce the width slightly).
  • Similarly, if you resize the window and the embedded movies are now too big or too small, then just refresh the page to recalculate the sizes.
  • On iPad, you need to scroll up after the movie loads to hide the title bar. This works better on Chrome than Safari, but see the next comment.
  • On mobile devices you may get an error message about a problem with the website. This is likely to be related to memory use; freeing up space on your device may help, especially on older devices. iOS Safari will automatically reload the page and continue almost seamlessly.
  • The layout for portrait orientation does not quite work as intended on iPad. For a single large plot (e.g. T-X for all systems, except Fo-Q) you can simply zoom in to fill the screen. For two small plots, use the landscape 1/2 page layout (movies 1 and 2) instead of the portrait one (movies 1 and 3).

The movie output has been most thoroughly tested in Chrome, as that is the only browser available on all the platforms that we have access to. It has been also been checked (to varying degrees) in Firefox, Safari, Internet Explorer, Microsoft Edge, and Opera, and on Linux / Mac / Windows / iOS where appropriate.