Table 4. Whole Rock Major Element Composition of Florida Pumice Artifacts.

 

 

 

Sample Location SiO, ALO, Fe,0,t MgO CaO NaO K,O TiO, P,O, MnO LOI SUM*™
Southern Florida
MDC. 1.567.6b Miami Circle 67.80 13.70 2.54 058 2.37 4.01 3.33 0.39 0.45 0.08 4.60 99.97
MDC 1.166.4 Miami Circle 69.28 11.58 1.27 0.20 1.88 3.80 3.52 O11 0.50 0.06 7.50 99.81
MDC 1.222.11a Miami Circle 60.74 15.92 6.51 2.51 6.45 2.97 1.27 0.48 0.21 0.14 2.60 99.83
MDC 1.472.4 Miami Circle 72.72 12.72 1,13 0.18 1.56 3.49 3.70 0.12 0.16 0.07 3.90 99.86
MDC 1.893.1 Miami Circle 73.00 12.73 0.88 0.16 1.15 3.58 4.07 0.12 0.23 0.06 3.80 99.88
HMSF 896 Brickell Point 71.42 12.72 0.94 0.15 1.36 3.45 3.75 0.11 0.88 0.07 4.90 99.87
FBAR 75.62.10.1 Higgs Site 74.78 12.23 0.92 0.26 0.90 3.40 4.20 0.14 0.10 0.06 2.80 99.89
FBAR 72.20.534.1 Indian Key 72.20 12.37 0.82 0.20 1.65 3.57 3.83 0.10 0.13 0.06 4.80 99.84
FLMNH A16262a Fort Center 72.77 11.83 0.59 0.11 0.97 3.61 3.97 0.10 0.07 0.06 5.10 99.29
FLMNH 98576 Bear Lake 1 72.86 12.63 1.33 0.45 2.00 3.93 2.78 0.20 0.15 0.05 2.70 99.19
HMSF 582.1 Brickell Point 70.99 12.86 1.95 0.29 2.30 3.82 4.10 0.28 0.36 0.03 1.70 98.77
HMSF 1018.18 Granada 67.83 14.57 1.60 0.43 2.92 494 2.05 0.25 0.26 0.05 4.40 99.39
HMSF 2942.1 Honey Hill 67.56 13.07 1.61 0.39 2.47 3.73 2.32 0.22 0.78 0.04 7.20 99.49
HMSF 427.5 Custom House 46.40 12.71 12.81 6.12 11.03 2.21 103 *4.45 *1.72 0.16 1.30 99.99
FBAR 74.2.10.8 Stock Island 71.60 11.92 0.74 0.36 1.95 3.33 4.00 0.13 0.25 0.06 4.60 99.05
FBAR 00.14.47.1 Deering Estate 71.92 13.32 0.88 0.25 1.06 3.30 3.82 0.13 0.16 0.08 4.00 99.03
FBAR 76.209.1.1 Shark Butchery 73.16 12.54 0.62 0.14 1.05 3.56 4.24 0.10 0.18 0.06 3.20 98.25
FBAR 99.65.7.1 Whitebelt 1 55.63 14.39 1.61 0.27 3.72 2.95 2.65 0.16 ** 0.05 10.8 **
HMSF 1874.1b Sutton Site 59.30 17.76 6.36 2.20 6.50 3.33 0.94 0.46 0.79 0.16 1.70 99.52
Northwestern Florida
EGLIN 056 Wynnhaven Beach 64.89 17.57 8012 2.58 1.04 1.76 3.51 0.58 0.25 0.09 <0.1 100.48
EGLIN 198 Wynnhaven Beach 50.47 16.88 11.18 2.51 6.11 45 2,43 2.36 1.14 0.22 1.9 99.88
EGLIN 742 Ww aven Beach 69.54 12.31 5.8 0.23 126 3.36 3.44 0.16 0.75 12 3.4 100.37

           

All major element analyses are reported in weight percent. LOI = weight loss on ignition.

t Total iron as Fe,O,.

tt Sum includes LOI and trace element barium (Table 7) recalculate as weight percent BaO.

* Replicate values by ICP-MS as Florida State University; TiO, = 3.60 wt. %, P,O, = 1.92 wt. %.
** Value omitted due to analytical problems.

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