Table 1 Names, units, and definitions of data fields included in the database
Field | Unit | Description |
|---|---|---|
Volcano | - | Name of the source volcano* |
Latitude | o | The location of the source volcano relative to the north (90°) and south (−90°) poles |
Location | - | The ‘official’ geopolitical territory in which the source volcano is situated, correct at the time of writing |
Unit | - | Name of the geochemically, physically, and stratigraphically distinct layer or deposit of volcanic material that was produced during the eruption |
Age | ka | Eruption age, expressed in thousands of years before present |
V | km3 | Total volume of bulk ejecta, given in cubic kilometers |
DRE km3 | Total volume of dense rock equivalent of the bulk value, given in cubic kilometers | |
VFLOW | km3 | Total erupted ignimbrite volume, given in cubic kilometres |
DRE | Total erupted ignimbrite volume, given in cubic kilometres dense-rock equivalent | |
VFALL | km3 | Total erupted fall deposit volume, given in cubic kilometres |
DRE | Total erupted fall deposit volume, given in cubic kilometres dense-rock equivalent | |
VINFILL | km3 | Total caldera infill volume, given in cubic kilometres |
DRE | Total caldera infill volume, given in cubic kilometers dense-rock equivalent | |
ρg | kg m−3 | Groundmass density of non-porous rock |
ρt | kg m−3 | Bulk density of the deposit material |
VFALL/VT | - | Ratio of fall deposit to total volume (taken as dense rock equivalent values) |
VFLOW/VT | - | Ratio of ignimbrite to total volume, (taken as dense-rock equivalent values) |
M | - | Eruption magnitude |
D | km | Distance to ocean closest to the eruptive vent (based on present day sea level)** |
DPDA | km | Distance to nearest ocean if following direction in the direction of the primary dispersal axis (based on present day sea level) |