Economic and Environmental Geology

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Table. 3.

Table. 3.

Microstructure characteristics of roof tiles

Group Sample Structure1 Color2 Voids3 Vitrification4
Core Margin
Original roof tiles #01 single G G channels EV
#02 single YB YB vughs NV
#03 single YR YR vughs NV
#07 single YB YB vughs NV
#08 single YB YB vughs NV
#09 single YR YR vughs -
#12 single G G channels EV
#13 single G G vughs IV
#15 sandwich G YR vughs IV
#17 single YR YR vughs NV
#18 single YR YR vughs NV
#19 single G G channels NV
#20 single YB YB vughs NV
#21 single YR YR vughs IV
#26 sandwich B YB planar NV
#27 single B B planar NV
#28 sandwich BG YR vughs EV
Deformed roof tiles #04 sandwich BG RB channels CV
#05 sandwich PG RB vesicles CV
#06 sandwich PG RB vesicles CV
#10 single YR YR channels -
#11-1 sandwich BG YR channels CV
#11-2 sandwich PG BG vughs
#14 sandwich RB - BG channels CV
#16 sandwich PG RB vesicles CV
#22 sandwich BG YR channels EV
#23-1 single YR YR channels -
#23-3 sandwich RB BG - EV
#24 sandwich PG BG vesicles CV
#25 sandwich PG - BG vesicles CV
#29-1 sandwich YR - BG channels EV
#29-2 sandwich PG BG vesicles

1Single; cross section shows similar color between core and margin, sandwich; cross section shows different color between core and margin.

2YB; yellowish brown; YR; yellowish red, RB; reddish brown, G; gray, BG; bluish gray, PG; purplish gray, B; black.

3Polarizing microscope observation for thin section(Quinn, 2013).

4NV; no vitrification, IV; initial vitrification, EV; extensive vitrification, CV; continuous vitrification(by SEM observation, Maniatis and Tite, 1981).

Econ. Environ. Geol. 2021;54:671-87 https://doi.org/10.9719/EEG.2021.54.6.671
© 2021 Econ. Environ. Geol.