Pysical Properties and Stratigraphic Thicknesses Used in Gravity Model

Unit                        Velocity (m/s)             Density* (kg/m^3)             Thickness** (m)
Precambrian               5800                            2700
Madera Gp                5400                            2650                                 280
Cutler Fm                  3500                            2380                                 600
Chinle Fm                  3000                            2290                                 300
El Rito                       2500                       2190-2320                             150
Abiquiu Fm                2000                        2070-2235                          < 400
Santa Fe Gp              1200                            1820                                < 200

* Determined from seismic interpretation
** From gravity interpretation
 

(Balridge et al 1996)