Representative Glass Shard Analyses

Representative glass shard analyses

Rabbit Springs / Rabbit Springs / Brown’s View / Brown’s View / Lower GL / Upper GL / Upper GL / Upper GL / Sand Springs / Sand Springs

Sample #

/ GA02/3/8/6 / GA02/12/8/10 / GA02/3/8/3 / GA02/3/8/4 / GA02/27/6/1 / GA02/28/8/1 / GA02/27/6/3 / GA02/8/8/1 / GA02/12/8/6 / GA02/14/8/2

SiO2

/ 76.69 / 76.89 / 76.70 / 76.85 / 74.16 / 71.23 / 73.22 / 76.61 / 76.40 / 76.48
TiO2 / 0.25 / 0.30 / 0.34 / 0.34 / 0.44 / 0.59 / 0.19 / 0.43 / 0.41 / 0.36
Al2O3 / 11.61 / 12.08 / 12.22 / 12.23 / 11.95 / 11.31 / 14.52 / 11.35 / 12.16 / 11.96
Cr2O3 / 0.00 / 0.00 / 0.00 / 0.03 / 0.01 / 0.00 / 0.00 / 0.01 / 0.00 / 0.00
FeO / 1.82 / 0.89 / 1.19 / 1.29 / 5.28 / 5.77 / 0.83 / 1.87 / 1.79 / 1.84
MnO / 0.04 / 0.03 / 0.06 / 0.01 / 0.17 / 0.21 / 0.00 / 0.00 / 0.03 / 0.04
MgO / 0.11 / 0.03 / 0.09 / 0.02 / 0.21 / 0.33 / 0.00 / 0.00 / 0.07 / 0.11
CaO / 0.80 / 0.56 / 0.84 / 0.57 / 1.95 / 2.00 / 1.81 / 0.45 / 0.78 / 0.94
Na2O / 3.03 / 3.00 / 2.58 / 2.45 / 1.56 / 2.57 / 4.41 / 2.66 / 1.73 / 2.68
K2O / 5.63 / 6.20 / 5.95 / 6.20 / 4.26 / 5.98 / 5.02 / 6.63 / 6.64 / 5.60
NiO / 0.00 / 0.04 / 0.02 / 0.01 / 0.01 / 0.01 / 0.00 / 0.00 / 0.00 / 0.00
Total / 100.00 / 100.00 / 100.00 / 100.00 / 100.00 / 100.00 / 100.00 / 100.00 / 100.00 / 100.00

Table 2. Representative vitric glass shard analyses from the Rabbit Springs, Brown’s View, Grey’s Landing (GL) and Sand Spring Members of the Rogerson Formation (values in wt. %). All analyses performed on EMP at University of Leicester, and recalculated to 100 wt. %.