Table T2. Jasperoid compositions and average Fe-Mn-Si deposit at Roman Ruins.

Major element oxides (wt%)
SiO2
TiO2
Al2O3
FeO(t)
MnO
MgO
CaO
Na2O
K2O
P2O5
Total S
LOD
LOI
Total
Method:
XRF
ICP-AES

ICP-AES
XRF
ICP-AES
XRF
ICP-AES
XRF
ICP-AES
XRF
ICP-AES
XRF
ICP-AES
XRF
ICP-AES
XRF
ICP-AES
XRF
ICP-AES

ICP-AES

G

G

(majors)
142697 83.57 0.011 0.51 8.49 0.008 0.11 0.27 0.03 0.02 0.166 5.74 0.03 3.83 100.6
142707 90.62 0.008 0.40 3.49 0.002 0.03 0.05 0.02 0.02 0.025 2.69 NA NA 96.3
142714 82.95 0.003 0.39 9.36 0.013 0.25 0.79 0.02 0.03 0.161 4.28 NA NA 96.6
Average Roman Ruins 50.7 0.06 1.3 20.0 3.5 0.9* 0.62 2.7* 0.64 0.47 0.22 8.3 9.8 99.1

 

Elements (ppm)
Li
Be
Cl
Sc
V
Cr
Co
Ni
Cu
Zn
Ga
Ge
As
Rb
Sr
Method:
ICP-AES
ICP-AES
XRF
ICP-MS
ICP-MS
ICP-MS
ICP-MS
ICP-MS
ICP-AES
ICP-AES
ICP-MS
ICP-MS
ICP-MS
ICP-MS
ICP-AES
142697 11 <2 150 <1 6.9 3.2 24.0 1.2 1620 12 0.6 2.5 3.0 0.28 4
142707 13 <2 NA <1 3.4 2.2 13.5 2.3 16 24 0.2 1.2 2.5 0.40 2
142714 9 <2 120 <1 14.8 3.1 2.6 1.2 3715 63 0.8 3.1 3.3 0.37 21
Average Roman Ruins 6.4 4.3 3.3%* 1.8 57 5.1 1.5 4.2 312 625 2.9 33 2050 20 134

 

Elements (ppm)
Y
Zr
Mo
Cd (ppb)
In (ppb)
Sb
Te (ppb)
Cs (ppb)
Ba
La
Ce
Pr
Nd
Sm
Method:
ICP-MS
ICP-AES
ICP-MS
ICP-MS
ICP-MS
ICP-MS
ICP-MS
ICP-MS
ICP-AES
ICP-MS
ICP-MS
ICP-MS
ICP-MS
ICP-MS
142697 2.6 <2 0.57 31 96 5.1 174 21 21 0.63 1.98 0.40 2.29 0.65
142707 0.74 <2 0.68 76 4 0.7 570 9 22 0.33 0.72 0.13 0.70 0.18
142714 3.4 <2 9.6 208 978 4.1 30 18 70 1.14 2.44 0.43 2.68 0.65
Average Roman Ruins 4.5 8 16 680 225 25 62 3000 1050 1.83 4.09 0.64 2.82 0.79

 

 
Elements (ppm)
Eu
Gd
Tb
Dy
Ho
Er
Tm
Yb
Lu
Tl (ppb)
Pb
Bi (ppb)
Th (ppb)
U (ppb)
Method:
ICP-MS
ICP-MS
ICP-MS
ICP-MS
ICP-MS
ICP-MS
ICP-MS
ICP-MS
ICP-MS
ICP-MS
ICP-MS
ICP-MS
ICP-MS
ICP-MS
142697 0.370 0.62 0.096 0.51 0.097 0.26 0.036 0.23 0.035 44 20.1 309 18 1320
142707 0.068 0.17 0.028 0.15 0.028 0.08 0.012 0.10 0.011 509 5.5 560 19 289
142714 0.335 0.62 0.085 0.46 0.092 0.27 0.035 0.26 0.044 78 11.6 138 10 4504
Average Roman Ruins 1.11 0.85 0.16 0.91 0.21 0.59 0.096 0.59 0.095 3200 250 110 150 9250

Notes: XRF = X-ray fluorescence spectrometry, ICP-AES = inductively coupled plasma–atomic emission spectrometry, ICP-MS = inductively coupled plasma–mass spectrometry, G = gravimetric analysis. FeO(t) = total iron as FeO including Fe in hematite, pyrite (of which a minor proportion occurs in wallrock fragments), and scarce wallrock chlorite. S(t) = total sulfur (sulfide + sulfate). LOD = loss on drying at 105C (samples predried at ~40C), LOI = loss on ignition at 1050C. NA = not analyzed. Average Roman Ruins = Fe-Mn-Si deposit (N = 16), from Binns et al. (2002) plus new data. * = most Cl and Na, and about half of Mg from trapped sea salt. † = outliers excluded from the averages (single samples): 9 ppm Cd; 335 ppm Mo; 3.0 wt% Pb (suspected contamination); 685 ppm Sb; 129 ppm Tl.