Coal Geology of the Paleocene-Eocene Calvert Bluff Formation (Wilcox Group) and the Eocene Manning Formation (Jackson Group) in east-central Texas

Edited by P.D. Warwick and S.S. Crowley

U.S. Geological Survey Open-File Report 95-595

Table 2. Sources of chemical data used in this study.

Whole coal (-100 mesh):

• Wet chemical analyses:
  • Flameless atomic absorption
    • Hg
  • Specific ion electrode
    • F
• X-ray fluorescence
  • Cl, P
• Atomic absorption spectroscopy
  • Se

Coal ash:

• Molecular absorption spectroscopy
  • S
• Inductively coupled plasma - atomic emission spectroscopy
  • Na2O, Be, Co, Cr, Cu, Li,
    Mn, Ni, Sc, Sr, Th, V, Y, Zn,
    SiO2, Al2O3, CaO, MgO, K2O,
    Fe2O3, TiO2, P2O5, B, Ba, Zr
• Inductively coupled plasma - mass spectroscopy
  • Ag, As, Au, Bi, Cd, Cs, Ga,
    Ge, Mo, Nb, Pb, Rb, Sb, Sn,
    Te, Tl, U Ce, Dy, Er, Eu, Gd,
    Hf, Ho, La, Nd, Pr, Sm, Ta,
    Tb, Tm, W, Yb

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