TS ISO 710-2

TS ISO 710-2 is a graphical-symbol standard focused on the representation of sedimentary rocks in detailed maps, plans and geological cross-sections. In geological cartography, symbol systems are used to communicate rock type, stratigraphic relationships and field interpretation quickly and consistently; this part serves as a reference for users who need to recognise how sedimentary units are distinguished visually.

What sedimentary-rock representation means in practice

Sedimentary rocks form through deposition and subsequent lithification, and include materials such as sandstone, limestone, shale and conglomerate. In maps and cross-sections, the aim of representation is not only to add a visual pattern, but also to convey readable information about stratigraphic interpretation, unit boundaries and geological continuity. Graphical symbols provide a standard visual language for transferring field data into finished drawings.

Consistency across maps, plans and cross-sections

Standards for graphical symbols help the same rock group appear in a comparable way across different drawing types and scales. That consistency supports clearer reading between detailed maps and geological sections, reduces ambiguity and improves communication among specialists. In general technical practice, the context of the symbol matters as much as the symbol itself, because sedimentary units are often interpreted through bedding, alternation and structural relationships as well as through the pattern used to depict them.

• Defines a visual language for sedimentary rocks.
• Applies to detailed maps, plans and geological cross-sections.
• Supports consistent presentation of geological interpretation across drawings.
• Helps differentiate rock units through a standard symbol system.