The frame provides the broadest ordering by horizons and phases, for the entire site. Within each phase, it gives the range of applicalble numbers for strata, but without defining any single stratum: this is left for the sequences.
The current frame version is labeled MZA, in a short and long version. We also list here earlier versions, for the sake of reference.
Current version
| MZA short version | September 2011 |
| MZA full version | September 2011 |
| MZA lexicon | September 2011 |
Earlier versions
| MZA with different horizons and phases | September 2008 |
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