1 photo
Stylolitic seal with a tectoglyph looks. The brittle fracture of the stylolite seal left elements of matrix limestone in the form of crystallization steps.
1 photo
Stylolitic seal with a tectoglyph looks. The brittle fracture of the stylolite seal left elements of matrix limestone in the form of crystallization steps.
18 photos
Blocks of moraine formations (tillites) show traces of abrasion in the form of striae distributed on the polished surface of the blocks. These short striae, sometimes curved and even angular, are oriented in all directions. They should not be confused with tectonic striations recorded on the pebbles of conglomerate geological formations (see the section AIV TECTOGLYPHES on pebbles).