H. Veld et al., A FLUORESCENCE ALTERATION OF MULTIPLE MACERALS (FAMM) STUDY OF NETHERLANDS COALS WITH NORMAL AND DEVIATING VITRINITE REFLECTANCE, Organic geochemistry, 26(3-4), 1997, pp. 247-255
Suites of well-characterised Westphalian coals from The Netherlands wi
th ''normal'' and ''deviating'' vitrinite reflectance have been examin
ed by the FAMM (fluorescence alteration of multiple macerals) techniqu
e. The fluorescence alteration characteristics of the ''normal'' Nethe
rlands coals change with rank in a similar manner to ''normal'' Austra
lian Permian coals, except that the telovitrinites of the Netherlands
coals appear to be relatively more perhydrous. This difference is also
apparent in a comparison of Rock-Eval hydrogen index values. A fluore
scence alteration diagram has been calibrated for the Netherlands Carb
oniferous from which accurate equivalent vitrinite reflectance values
can be obtained, as well as suppression corrections for measured vitri
nite reflectances. However, the errors in using the equivalent Austral
ian Permian diagram for the determination of the suppression correctio
n are small (less than or equal to 0.05% absolute). The well Hengeveld
e-1 is used as an example to illustrate how corrections may be made to
perhydrous samples with ''deviating'' vitrinite reflectance for matur
ation assessment in petroleum exploration. (C) 1997 Elsevier Science L
td.