IN - Glacial Dump EarthCache EarthCache
IN - Glacial Dump EarthCache
-
Difficulty:
-
-
Terrain:
-
Size: 
(not chosen)
Please note Use of geocaching.com services is subject to the terms and conditions
in our disclaimer.
As an earthcache you will NOT 'find' a container but instead you will learn something about the geology of this area.
Logging Requirements:
1- To determine the height of this end moraine --Go to the top of the moraine (hill) at N40 38.082 W087 21.721--Submit the elevations of GZ & the top of the moraine--the difference of course equals its height.
2- Looking east--estimate the length of this end moraine.
3- Go to N40 37.901 W087 22.894--This is the western end of this moraine.There you will see a small portion of this moraine exposed at a rock quarry. Do you think that glacial meltwater was involved in the depositing of the glacial material at this site? 4- Across the highway you will see a very large rock (erratic) that was left here by the glacier. Quesstimate its dimensions ht/with/length.
**********************************
At this location you see what is called an 'end moraine.'
This end moraine is a large ridge running east & west and marks the maximn advance of the last glacier here in northwest central Indiana.
It is an accumulation of glacial debris called glacial till composed of a large deposit of rock and soil, which was pushed forward to this point and dumped here at the front edge of the ice advance--when the glacier retreated it left this end moraine behind.
At the 3nd stop, you will be able to see the way the glacial material was transported & deposited. (Question #3) Materials transported by water are typically well sorted. As the water slows, the larger/heavier particles settle out. Materials transported by glaciers, may be stratified or unstratified. If glacial meltwater is involved, it may be more stratified. After you have completed the questions, you will have an idea of the large volume of glacial till & debris that this glacier 'dumped' at this southern advance before it retreated.
FTDiscover: AThrillofTheHunt & Corp of Discovery
Additional Hints
(No hints available.)