Limestone EarthCache
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Limestone
Limestone is a sedimentary rock of biological origin formed at at the bottom of the sea some hundreds of million years ago - they are former coral reefs, accumulated shells, bones, etc... So created limestone is called biological. The biological origin of limestone is clearly confirmed by the presence of fossils. Sometimes, quite rare, the limestone can also be formed by the direct precipitation of minerals from water, in which case it is called chemical limestone. Such limestone is not so much on Earth, but it has generally interesting shapes in nature.
Fossils
Under fossils we mean any preserved remain, imprint or trace of any living organism of the past geological age. Fossils can provide direct or indirect evidence of an ancient life. Direct evidence means the fossilized residue of organisms, bones, boxes. Or petrified wood, parts of leaves and similar. Indirect evidence of life means fossilized traces, paths or marks left by organisms. An unusual indirect proof of ancient life can be for example coprolite - fossilized feces.
Location
This earth cache will bring you to location near the Tubal Cain’s Worship Creek. Walking to the location of this earth cache and the stages will bring you to place where large lime stones can be found. Those limestones are not of the local origin. They were brought here from other location. However, to answer the tasks in this geocache you will need to observe the large limestones at both location.
Tasks
Before you log the earth cache you have to send the correct answers to the questions. Reply via my profile. Logging the earth cache should be done right after sending the answers. I will delete the logs without answers. Brief instructions for use: I send answers and then I log the earth cache.
If you do not agree to this requirement, please do not log this earth cache. For details about earth cache requirements see http://www.geosociety.org/GSA/fieldexp/EarthCache/guidelines/home.aspx
1. Describe the color of the limestones found at both locations.
2. The limestones here can provide both direct and indirect evidences of ancient organisms? Please explain in your message which evidences are direct and which are indirect.
3. Optionally - add a photo of the fossil you found, or just some nice sunset here
Additional Hints
(No hints available.)
Treasures
You'll collect a digital Treasure from one of these collections when you find and log this geocache:
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