Descriptor : Shape of carcass canals (OW/SW)

Descriptor type : categorical

NB: Look to tube shape not opening shape.

Canal: Pore modified by skeletal structure thikening or by lintels streching. Canal length is greater than perforation diameter.

Lintel: Skeletal structure separating and bounding adjacent pores.

Carcass: Part of wall on intervallum side.

OW: Outer wall.

SW: Single wall.

Straight

../images/canaux_droits_meI.png

Straight

S-shaped

S-shaped: Resembles S in longitudinal section.

Curved

../images/canaux_chambre_subspherique_meI.png

Curved

Hierarchy

Carcass perforations: outer wall or single wall (OW/SW)
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 |_ Shape of carcass canals (OW/SW)

Belongs to the groups