146
5 SEDIMENTARY STRUCTURES
Fig. 5.13. Various types of graded bedding.
foreset dip will be less than the true dip. A second factor is that unless the amount of dip
is recorded from a face that is exactly perpendicular to the dip direction, then an apparent dip will be recorded that is less than the true dip. A third factor that may decrease
the depositional dip of a foreset is compaction (Rittenhouse, 1972).
The diverse geometric relationships that might exist between foresets and their
bounding surfaces has led to a rich blossoming of geological nomenclature and classi-
5 SEDIMENTARY STRUCTURES
Fig. 5.13. Various types of graded bedding.
foreset dip will be less than the true dip. A second factor is that unless the amount of dip
is recorded from a face that is exactly perpendicular to the dip direction, then an apparent dip will be recorded that is less than the true dip. A third factor that may decrease
the depositional dip of a foreset is compaction (Rittenhouse, 1972).
The diverse geometric relationships that might exist between foresets and their
bounding surfaces has led to a rich blossoming of geological nomenclature and classi-