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Journal of Spectroscopy
/
2021
/
Article
/
Fig 7
/
Review Article
Study of the Effects of Heating on Organic Matter and Mineral Phases in Limestones
Figure 7
Variations of
L
a
b
color values as a function of thermal treatment for three types of rocks: (a)
L
,
(b)
a
,
and (c)
b
.
(a)
(b)
(c)