TY - JOUR
T1 - Chemical diagenesis of carbonates in thin-sections
T2 - Ion microprobe as a trace element tool
AU - Veizer, Ján
AU - Hinton, R. W.
AU - Clayton, R. N.
AU - Lerman, Abraham
N1 - Funding Information:
We acknowledge financial support of this study by the U.S. National Science Foundation (grant EAR-8313579) and the Natural Sciences and Engineering Research Council of Canada; technical assistance of W.F. Schmie-del, I.M. Steele, E. Hearn and R. Draus; manuscript preparation by J. Hayes; and donation of samples and AAS analytical data by I.S. A1-Aasm and M.D. Mirota. R.W.H. acknowledges financial support from NASA (grant NAG 9-51 to R.N.C.), and J.V. from Canada Council (Killam Research Fellowship) in the final stages of the project.
PY - 1987/10/30
Y1 - 1987/10/30
N2 - Ion microprobe is a potential tool for determination of trace-element concentrations directly in thin-sections. Such an approach enables direct correlation of chemistry with microtextural features. We demonstrate the utility of this instrument for Sr, Mn, Fe and Mg in calcites and dolomites. At this stage, the sensitivity is ~10 ppm and the reproducibility is usually better than 15 relative percent. The analyzed spots are ~20 μ. We believe that with more homogeneous standards at low concentrtion levels, the technique is potentially capable of sensitivity in the ppb-ppm ranges. Fe may prove an exeption from this prediction. The technique may also prove suitable for determination of Na. Ion microprobe can serve as a valuable tool for diagenetic and petrological studies of carbonates. At this stage, its major disadvantage is the poor optical resolution in transmitted light.
AB - Ion microprobe is a potential tool for determination of trace-element concentrations directly in thin-sections. Such an approach enables direct correlation of chemistry with microtextural features. We demonstrate the utility of this instrument for Sr, Mn, Fe and Mg in calcites and dolomites. At this stage, the sensitivity is ~10 ppm and the reproducibility is usually better than 15 relative percent. The analyzed spots are ~20 μ. We believe that with more homogeneous standards at low concentrtion levels, the technique is potentially capable of sensitivity in the ppb-ppm ranges. Fe may prove an exeption from this prediction. The technique may also prove suitable for determination of Na. Ion microprobe can serve as a valuable tool for diagenetic and petrological studies of carbonates. At this stage, its major disadvantage is the poor optical resolution in transmitted light.
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U2 - 10.1016/0009-2541(87)90004-0
DO - 10.1016/0009-2541(87)90004-0
M3 - Article
AN - SCOPUS:0023511299
SN - 0009-2541
VL - 64
SP - 225
EP - 237
JO - Chemical Geology
JF - Chemical Geology
IS - 3-4
ER -