BRP 396.4 Walnut Grove Overlook EarthCache

This cache has been archived.

rainbowtree: DO NOT post a log to this cache.
If you choose to disregard CO's request and log this archived cache, be sure you have the following ...
1. Pics at the required coordinates with you or your signature item as verification of visit.
2. All questions completely/thoughtfully answered.
A special thank you to those who completed all the requirements as requested -and- added the Journeys to your log.
Location and content gifted to a special cacher for development of a new EarthCache.

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Hidden : 6/1/2017
Difficulty:
1.5 out of 5
Terrain:
1.5 out of 5

Size: Size: other (other)

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Geocache Description:

BLUE RIDGE PARKWAY OVERLOOKS GEOLOGY TOUR
There are countless wonders to behold along your journey.
Posted coordinates are for parking. - Outcrops are within 100 feet.

EARTHCACHE REQUIREMENTS
Each cacher must send his/her own answers BEFORE logging a find. Enjoy the journey (learning adventure) as well as the destination (smiley earned). Remember to take only pictures and leave only footprints. To get credit for this Earthcache, complete the following tasks:

1. MESSAGE …. a. Describe the shape of the deformed quartz vein. ... b. What is its length?

2. MESSAGE …. Look at the lenses and pods within this outcrop. ... a. How many lenses are there? ... b. How many pods are there?

3. LOG …. Post a picture at or near the coordinates. This picture is your log signature.

OPTIONAL - Please respect the time and effort involved in finding and creating this earthcache by adding A and B to your log.

A. JOURNEY OF THE MIND ... Science explains what we observe. Relate (in your own words) something you found interesting in the reading. This adds to your learning adventure and your log.

B. JOURNEY OF THE HEART ... Art shares our personal experience of what we see. Share something special you found on site, and why it is special to you. This is a memorable addition to your log and will make other hearts smile.

THANK YOU Mark W. Carter for permission to use your book for this earthcache.
THANK YOU Lillian for permission to place this earthcache along the Blue Ridge Parkway.


Gneiss is a metamorphic rock formed by increasing heat and pressure. As this rock changed, embedded quartz minerals were also changed into various shapes (veins/pods/lenses) based on the pressure exerted.

VARIATIONS
-The gneiss here is folded and intruded by veins, lenses, and pods of quartz. Large deformed quartz veins are clearly visible at this outcrop.
-A bleb is a small bubble-like inclusion of one mineral within a larger rock/mineral.
-A lens is an inclusion that is thick in the middle and thin toward the edges.
-A pod is an inclusion that is long in one dimension and short in two dimensions with its long axis usually parallel to layering.
-A vein is a rock/mineral intruded into a fracture.



RESOURCES
A Geologic Adventure Along The Blue Ridge Parkway in North Carolina by Carter/Merschat/Wilson ... 2001
http://www.minsocam.org/msa/collectors_corner/arc/quartzdep.htm

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