Skip to content

Indian Cellar - Strike and Dip EarthCache

Hidden : 9/20/2016
Difficulty:
2 out of 5
Terrain:
2 out of 5

Size: Size:   other (other)

Join now to view geocache location details. It's free!

Watch

How Geocaching Works

Related Web Page

Please note Use of geocaching.com services is subject to the terms and conditions in our disclaimer.

Geocache Description:

A very nice spot bring a picnic, table is provided, stay awhile and explore the area lots of interesting things to see. As the story goes many years ago the Indians used this area as a place to store food. With the steep sides and river close by it stayed cooler the sun couldn't get down into it so the winter ice stayed well into spring and summer, like I said as the story goes, I didn't try and find any written information on it.


 

 

But this isn't what this earthcache is about, if you look across the ravine you will see an outcropping of rock and this is what we will focus on today.

Strike and Dip

Are a couple of the terms that geologist use to describe the orientation of rock layers.

We describe this layer as dipping to the right, because that’s the direction it’s tilted downwards toward. We measure the dip as the angle between the layer and horizontal.

Draw a horizontal line across that layer— that’s what we call the “strike”.

Information from:  https://fractalplanet.wordpress.com/2014/03/15/understanding-strike-and-dip-on-geologic-maps/

Information from:  https://nwgeology.wordpress.com/geology-basics/sedimentary-rock-structure-strike-and-dip/

So what we are going to try and do here is find the strike and dip using the information above.

Draw a vertical line through the rocks this will be the strike line. 

Using the right hand rule above find the direction of the strike line, thumb points in the  direction of line – what is it north, south, east or west?

 

Now let's try to find the direction of the dip, paper and pencil may help with this, draw your strike line on the paper, now draw the angle of the rock that you see across the ravine across your  strike line, using the compass points tell me which direction the dip is going in. 

Now to claim this earthcache all you need to do is:

1-Email me the Name and GC #

2-Direction of the strike line.

3-Direction of the dip.

Thanks for taking the time to stop by and checking this area out, hope you enjoyed your visit.

Additional Hints (No hints available.)