unit |
Unique identifier for a geologic unit, a value of unit_link from the units table of the SGMC relational database; either unit is specified or x and y are specified |
x |
Geographic longitude in decimal degrees with datum WGS84, west longitudes negative, specified with y if unit is not specified |
y |
Geographic latitude in decimal degrees with datum WGS84, south latitudes negative, specified with x if unit is not specified |
f |
XML or JSON if either of those formats is desired, otherwise the XML will be transformed into HTML by the server |