Striations II EarthCache
-
Difficulty:
-
-
Terrain:
-
Size: 
(not chosen)
Please note Use of geocaching.com services is subject to the terms and conditions
in our disclaimer.
Please access from ditch on the south side River Road, park on the shoulder. If you have time explore Landmark College across the road.
Glacial striations or glacial grooves are scratches or gouges cut into bedrock by process of glacial abrasion. Glacial striations usually occur as multiple straight, parallel grooves representing the movement of the sediment-loaded base of the glacier. Large amounts of coarse gravel and boulders carried along underneath the glacier provide the abrasive power to cut the grooves, and finer sediments also in the base of the moving glacier further scour and polish the bedrock.
Most glacial striations were exposed by the retreat of glaciers since the Last Glacial Maximum. As well as indicating the direction of flow of the glacial ice, the depth and extent of weathering of the gouges may be used to estimate the duration of post-glacier exposure of the rock.
Glaciers Sculpted the Landforms
A huge ice sheet, several thousand meters thick, covered much of Vermont between 10,000 and 70,000 years ago. Glacial action yielded distinctive erosional and depositional features.
Erosion of the landscape included the gouging and plucking out of boulders and rocks, so that depressions were carved. Rocks at the base of moving glaciers left scratches called glacial striations on the bedrock surface. Bogs and small marshy lakes are also features of glaciations; they formed because of poor drainage of the hollows that were eroded by glacial action.
To log this EarthCache, please Email me the direction that the glacial striations point, and from where the erratics that cut into the bedrock likely began their journey from (direction, not distance or location [not parallel with the road]).
You must also post a picture of the flat (Level) surface (Not the vertical face) with your log including your GPS Sensor in view. Logs without both the answer and the picture will be removed
*** Every log must include a picture, if you take a group shot then you all must post a picture with your log individually or you risk having your log deleted.
Please note you are looking at the rock surface, and NOT the road cut (lichen covered)
Misha
Additional Hints
(Decrypt)
Fpengpurf va gur fhesnpr abg gur jnyy, abg gur sbyvngvba jvguva gur ebpx snpr