The AAPG/Datapages Combined Publications Database
AAPG Bulletin
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AAPG Bulletin; Year: 2025; Issue: April DOI: 10.1306/03182524012
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Figure 5. Cathodoluminescence images showing laser ablation spots (LS). (A) Calcite shrub in well A shows consistent bright orange luminescence (BL) with minor nonluminescent spots. Larger dark nonluminescent areas (DL) can be seen on the right side, away from the laser spots. (B) Calcite spherulite with consistent color around the rim and darker colors in the center. The LSs are at the rims of spherulite 1 (right/large) and in the center and at the rims of spherulite 2 (left/small). The Mg-rich clay matrix is seen substituted by quartz with bluish luminescence and orange luminescent dolomite. (C) Calcite shrub with probable recrystallization or alteration showing areas with DL and BL. Some LSs are in the dark areas. A fracture on the right side of the image is filled with dark orange dolomite.
Figure 5. Cathodoluminescence images showing laser ablation spots (LS). (A) Calcite shrub in well A shows consistent bright orange luminescence (BL) with minor nonluminescent spots. Larger dark nonluminescent areas (DL) can be seen on the right side, away from the laser spots. (B) Calcite spherulite with consistent color around the rim and darker colors in the center. The LSs are at the rims of spherulite 1 (right/large) and in the center and at the rims of spherulite 2 (left/small). The Mg-rich clay matrix is seen substituted by quartz with bluish luminescence and orange luminescent dolomite. (C) Calcite shrub with probable recrystallization or alteration showing areas with DL and BL. Some LSs are in the dark areas. A fracture on the right side of the image is filled with dark orange dolomite.