We found your match.
Your can turn the GIS app into an online dating site (albeit for seniors) by doing the following:
- Click here to open the Wisconsin Geology GIS map
- Click the "Filter" button near the upper right of the map, then toggle on the "Age Dated" filter.
The mapped outcrops will then show only those that have been dated. Click on those outcrops for a profile of each.
The oldest rock outcrops in Wisconsin are found in the central part of the state. Just east of Marshfield, a gneiss outcrop has been dated around 2800 - 3000 million years old by a geologist named W. Randall Van Schmus. Randy gets around and has dated a LOT of rocks around the country.
You'll see several outcrops dated by Van Schmus along the Black River in Clark and Jackson Counties, specifically near the Arbutus Dam. You'll find rock outcrops older than 2000 million (2 billion) years old along the Wisconsin River in Wood and Portage Counties as well. These are of course mapped on the Wisconsin Geology GIS app. Love begins here (opens the GIS map).
The oldest rock outcrops in Wisconsin are found in the central part of the state. Just east of Marshfield, a gneiss outcrop has been dated around 2800 - 3000 million years old by a geologist named W. Randall Van Schmus. Randy gets around and has dated a LOT of rocks around the country.
You'll see several outcrops dated by Van Schmus along the Black River in Clark and Jackson Counties, specifically near the Arbutus Dam. You'll find rock outcrops older than 2000 million (2 billion) years old along the Wisconsin River in Wood and Portage Counties as well. These are of course mapped on the Wisconsin Geology GIS app. Love begins here (opens the GIS map).
Very good blog post. I definitely love this website.
ReplyDeleteStick with it!