This also reduces the infiltration so often associated with jointing window frames into walls.
The combined effects of less erosion-resistant marly limestone and the columnar jointing of basalts caused the rapid migration of the knickpoint toward the upstream reach.
Responses to photoperiod before and after jointing in wheat substitution lines.
On the other hand, the basalt columns that resulted from vertical jointing could readily topple into the plunge pool beneath the knickpoint.
The jointing here was problematical and there can be no doubt that the reason for the beam layout was purely decorative.
Throughout the pluton, jointing is well-developed and leads to a distinctive topography.
Response to photoperiod before and after jointing in wheat substitution lines.
No prismatic jointing is apparent at the outcrop, but one observes a massive, vesicle-free central part, about 20 m thick, sandwiched between two greenish-brown vesicular zones.
