Hartung Park's Past
In Wisconsin, United States
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A great park that was recently opened. There is great information about the recent and not so recent past. Plus its a great place to take the kids to play.
Where you are standing are two distinct layers of geological material, the Oak Creek and Racine formations. The first 10 feet are loamy topsoil and imported fill. The next 10-20 feet are unconsolidated material containing glacial sediments of the Oak Creek Formation that were deposited during the Pleistocene Epoch. Below the unconsolidated sediment is the uppermost bedrock unit, the Racine Formation. Ranging from 150 to almost 300 feet thick across Milwaukee County, the Racine Formation is of Silurian Period age and consists of light to bluish gray, fine-grained, dense, and well bedded dolomite. Certain layers of the Racine strata have abundant marine fossil. Features observed in Hartung Park's bedrock indicate that the Racine Formation originally formed as carbonate mud that slowly accumulated at the bottom of a quiet, shallow marine basin below the base of fair-weather waves during the Silurian Period. The resultant sediment eventually transformed into the dolomoitized bedrock that is present today.
To log this cache please e-mail me the answers to the following questions.
1) Hartung Park was once the site of a warm _______________ _____________________.
2) The answer to number one was bordered by ____________________ and _______________.
3) What are the 3 sedimentary rocks that you will find here?
4)What happened to the rocks from Permian through Tertiary Periods?
5)What two formations are present beneath Hartung Park?
6) Name 2 of the fossils of organisms that could be found in the park.
7)Before the park, what was the recent use of the land you are standing on?
Bonus! If you have a camera with you Take a picture with you and your favorite fossil sculptures in the background. Please don't trample the delicate grass.
* Note picture is not needed to log the cache but appreciated.
(No hints available.)
Last Updated: on 9/3/2014 4:06:17 PM Pacific Daylight Time (11:06 PM GMT)
Coordinates are in the WGS84 datum