| View Cart ⇗ | Info

“Dip, in geology, the name given to the angle of slope of inclined rock strata, as dip in the diagram...The horizontal direction at right angles to the line of dip is called the strike, shown by st in the diagram.” -Foster, 1921


Ellsworth D. Foster ed. The American Educator (vol. 3) (Chicago, IL: Ralph Durham Company, 1921)


TIFF (full resolution)

2400×1098, 292.8 KiB

Large GIF

1024×468, 56.5 KiB

Medium GIF

640×292, 31.3 KiB

Small GIF

320×146, 12.4 KiB