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7 Souvenirs of August

EarthCache

Roccia dell'Elefante

A cache by jeff499
Hidden : 5/24/2010
In Sardegna, Italy
Difficulty:
1.5 out of 5
Terrain:
1 out of 5

Size: Size: not chosen (not chosen)

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Geocache Description:


The "Roccia dell'Elefante" (elephant rock) is a popular sight near Castelsardo.

 

The Roccia dell'Elefante consists of trachyte, a feldspar-rich rock, which developed in a melt at the roof of a basal magma chamber. If you have a close look you can see the porphyritic crystals and in smaller imperfect rods or laths of the feldspar. In fresh condition trachyte is mid-grey, during decomposition it bleaches out and becomes brighter. The trachyte flow not out as lava, but a stiff melt plug was pushed upward. What you can see today is the remains of such a melt plug formed by wind and weather to its remarkable form.

In the Bronze Age the Roccia dell'Elefante was a cult place for the Nuragic civilization (1800–750 B.C.)

 

To get credit and claim a "Find" for this EarthCache,  name at least two different kinds of feldspar*, one other mineral which can be found in trachyte* and estimate the height of the rock.
A picture of you with the Elefante would be nice.

Send an e-mail to EC-elefante@gmx.eu with the answers and your estimation.
Dont' wait for my logpermission, if the answers or the picture are incorrect I will contact you!

 

 

*answers can not be found on location

 

 

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Inventory

There are no Trackables in this cache.

 

Find...

368 Logged Visits

Found it 361     Didn't find it 3     Write note 3     Publish Listing 1     

View Logbook | View the Image Gallery of 255 images

**Warning! Spoilers may be included in the descriptions or links.

Current Time:
Last Updated: on 8/27/2014 2:04:31 PM Pacific Daylight Time (9:04 PM GMT)
Rendered From:Unknown
Coordinates are in the WGS84 datum