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7 Souvenirs of August

EarthCache

Gesteentetuin

A cache by Masterchef
Hidden : 1/8/2008
In Flevoland, Netherlands
Difficulty:
1.5 out of 5
Terrain:
1.5 out of 5

Size: Size: not chosen (not chosen)

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Geocache Description:


The Rock Garden (Gesteentetuin) Gives you information on the erratics brouht here during the Glacial Periods.

Here in the Rock Garden (Gesteentetuin), you can find information about various rocks.

- Ingneous rocks
- Gabbro and Dorite
- Extrusive rocks
- Sedimentary rocks
- Metamorphic rocks

You even can find information about the

- Glacial till
- Origin of rocks
- The use of Erratics

Erratics

The Rocks here are called erratics. They were brought here by the ice sheets that covered the land al the way from Scandinavia during the ice ages. The Last deposits date from 120.000 years ago.

Rocks and their age

Rock scan be dated by the decay of radio-active minerals in them. Because of their great age, granites from Uppsala region Sweden are also refered to as ‘Archoic granites’

Weathering

During their long life the rocks were exposed to harsh conditions of wear and tear. They were crushed under the ice and transported in rivers. And even now they are exposed to the daily cycle of heating and cooling, in the end they will break down into sands, clays and fine till.

To log this Earthcache please walk around in the Rock Garden to find the answers of the next questions:

1. From how many areas are rocks in the garden?
2. Where did the fisherman use the erratics for?
3. Make a photo of you and your GPSr between “Boot Noord en Boot Zuid” and place this photo by your log.
4. Send me the coordinates of the pole near the Extrusive rocks

Send the answers to masterchef(at)planet.nl

Enjoy your walk through the RockGarden (Gesteentetuin)

You can do this cache during this cache "Oud in Nieuw land (1) Schokland" as well.

Additional Hints (No hints available.)

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Inventory

There are no Trackables in this cache.

 

Find...

382 Logged Visits

Found it 377     Didn't find it 1     Write note 3     Publish Listing 1     

View Logbook | View the Image Gallery of 422 images

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

Current Time:
Last Updated: on 7/16/2014 1:44:53 PM Pacific Daylight Time (8:44 PM GMT)
Rendered From:Unknown
Coordinates are in the WGS84 datum