A walk on the beach EarthCache
Hidden : 4/5/2008
Difficulty:
1.5 out of 5
Terrain:
3 out of 5

Size: Size: not chosen (not chosen)

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Geocache Description:


The listed Coordinates will carry you to a fantastic location on Rainbow Mountain. Once you arrive here, you will see a section of sandstone rock that has slide to the side of the bluff and creating a great shelter from the weather. Looking at the area you can just picture a Indian from ages gone by with a fire going and cooking up a deer. All while being protected from the elements from above.
That alone is a great trip into time. But what makes this sandstone outcropping so great is what you can place your hands on at this location. Walk into shelter and look up, then run your hands on the ripples of an ocean bottom long since gone. Tens of thousands of years ago on a shore line that once was here, These ripples in the sand where covered with sedimentary layers that over time turned into the sandstone you now see.

The Geology of Sandstone.
Sandstone is a sedimentary layer of rock formed in the nature under the sedimentation process .Erosion, transportation, deposition of sediments under the geological environment to form layered or sedimentary rocks. Generally sedimentary rocks like sandstones, and limestone, will show characteristic layered formations. Typically, sedimentation occurs by the sand settling out from suspension, or ceasing to be rolled or bounced along the bottom of a body of water, such as a river or sea, or ground surface (e.g., in a desert or sand dune region). Finally, once it has accumulated, the sand becomes sandstone when it is compacted by pressure of overlying deposits and cemented by the precipitation of minerals within the pore spaces between sand grains.
Most sandstone is composed of quartz and/or feldspar because these are the most common minerals in the Earth's crust. Like sand, sandstone may be any color, but the most common colors are tan, brown, yellow, red, gray and white.
To log this cache please email the cache owner the answers to the following questions do not post in your log, and post a picture from the posted coordinates with yourself and GPS with the rock structure in the background. If within 21 days your picture has not been uploaded your log will be deleted.
1 How big is the area with the ripples in time?
2 Approximately how many square feet is the floor of structure? You will need a picture like this one.

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