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Trace Element Geochemistry of Iowa Coal.

Authors
Dawson-MR; Seifert-KE
Source
Proc Ia Acad Sci 1986 93(4):175-177
Link
NIOSHTIC No.
10007729
Abstract
Coal samples were collected from four coal mines in Iowa and analyzed by instrumental neutron activation analysis for la, ce, sm, eu, tb, yb, lu, sc, cr, CO, as, th, and u. A comparison of the compositions of whole coals to their high-temperature ashes indicates that essentially all of these elements reside in the ash. The abundance of most elements is consistent with a trend of decreasing elemental concentrations from east to west in U.S. coals. Pyrite separates were found to concentrate as, cr, and CO, while calcite separates were found to concentrate sc. Rare earth element patterns are given for the Iowa coals. Research was done at Iowa State University under Grant G1106002.
Publication Date
19860101
Document Type
OP; Final Contract Report;
Fiscal Year
1986
NTIS Accession No.
NTIS Price
Identifying No.
MIR 8-90
Issue of Publication
4
NIOSH Division
WO;
Source Name
Proc. Ia Acad. Sci., V. 93, No. 4, 1986, PP. 175-177
State
IA;
Performing Organization
Iowa State University
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