Old Hoffman's Playland Dirt Sample

A dirt sample was collected from the old Hoffman's playland. We thought it would be interesting because it is now abandoned and there was a lot of traffic and machinery over the years on the land. Here's our picture of the dirt from the SEM.


The next image is an elemental analysis map, without the map overlapping the image. The second picture is with SEM image in background.




Below is the spectrum from the elemental analysis and the quantified data.




After Carbon and Oxygen were removed from the data we see that the sample was more than half Silicon. The interesting elements we found were Titanium, and Indium. Although not much of these elements were present in the sample. Indium can sometimes be toxic and Titanium is a valuable metal. Below you can see the information from the XRF.


The XRF portrays a different outcome from its elemental analysis and shows us that the sample is primarily Iron and the SEM informed us that only about %10 of the sample was Iron. Not sure which to go off of, but we are more interested in finding rare or hazardous elements. In this sample there we no dangerous amounts of any toxic elements and very few amounts of rare, valuable elements. So we can conclude that the dirt around the old  Hoffman's Playland is quite bland. Below you can see Asaph Ko and Tristen Protzmann working with the dirt by the SEM.