Geodraw

Thinking about geological drawings and diagrams. Escaping the text book diagrams -

and thinking about maintaining a very touchable, textured (I suppose, earthy) surface.  Which shapes, colours and patterns can represent formation without becoming just decorative, at the expense of demonstrating information?  These images i made last year are finding a balance between diagram and picture (?).  Not automatically converting everything into a straight line and regulated pattern gives more sense of scale .. the hand drawn lines/ shapes imply something real and fathomable.