A Glacial Erratic is a piece of rock that differs from the size and type of rock native to the area in which it rests. This Erratic appers to be a giant chunk of Sandstone.
Erratics their name from the Latin word that meahs to Wander and are carried by Glacial Ice often over distances of hundreds of Miles. Erratics can range in size from pebbles to large boulders such as 17,000 Ton Big Rock in Alberta Canada.
Geologists identify erratics by studying the rocks surrounding the position of the erratic and the composition of the erratic itself .
Here is more info about Erratics.
https://en.wikipedia.org/wiki/Glacial_erratic
Frost Wedging is the process by which water/ ice weathers and erodes landscapes through repeated freeze and thaw cycles. As water freezes it expands by 9 percent, wedging the rock apart only to melt again during the summer months. A single freeze/thaw cycle may take many years in length, or it may be a seasonal depending on the Location on the Earth Frost wedging is the name given to the prying apart of rock due to the expansion of freezing water. This process is most effective when moisture content is high and freezing is rapid, in such cases, water in pores and cracks is sealed off and unable to migrate, creating internal stresses that are sufficient to shatter the rock. Susceptibility to frost wedging depends largely on type of rock being effected . Sedimentary rocks tend to shatter more easily than igneous rocks, and rocks with larger pore sizes are more susceptible than those with smaller pore sizes. It should also be noted that the degree of frost wedging is dependent to the intensity, number, and length of freeze-thaw cycles a rock undergoes.
1. N 41° 22.752' W 75° 17.809' Here you will find and interesting Rock with a QR Code sign , use a QR reader and explain to me what you learned from this. do not post it as a picture, either use the QR code and give me the explanation, if they don't have cell service just describe how this happened here using what you learned from the write up.
2.Also at the same Cord's N 41° 22.752' W 75° 17.809' examine and explain the Diffrence Beteween the outside edges and the inside edges.
3. From the reading above explain what Frost Wedging is .
4. N 41° 22.480' W 75° 17.522' at this Location you will find a ledge wall that extends 330 ft. examine this wall and tell me how this differs from the Erratic.
5. Post a picture of you and or a personal item at either waypoint.