Stories in the Sediments

Stories in the Sediments (HM2M1V)

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N 39° 54.767', W 83° 13.083'

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Inscription
More than 400 million years ago, a warm, shallow sea covered Ohio. Sand, rocks, silt, mud and minerals, collectively called sediments, made up the seafloor. Sea life including small, shelled animals lived in the water. As the shelled animals died and new sediments washed into the sea, the seafloor became layered — new sediments covering the old. Over time, the increasing mass of sediments compressed the deeper layers to form sedimentary rock.

There are two types of sedimentary rock that make up the bedrock in the park — dolomite from the Silurian Period and Columbus limestone from the Devonian Period. The dolomite is a thicker, stronger layer of rock.

Columbus limestone tells the story of the animals that lived on the ocean floor. In the example of limestone, look for fossils shaped like seashells, called brachiopods. They were one type of shelled animal that lived in the ancient sea.
Details
HM NumberHM2M1V
Tags
Placed ByColumbus and Franklin County Metro Parks
Marker ConditionNo reports yet
Date Added Monday, October 21st, 2019 at 5:01pm PDT -07:00
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Locationbig map
UTM (WGS84 Datum)17S E 310418 N 4420432
Decimal Degrees39.91278333, -83.21805000
Degrees and Decimal MinutesN 39° 54.767', W 83° 13.083'
Degrees, Minutes and Seconds39° 54' 46.02" N, 83° 13' 4.98" W
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Closest Postal AddressAt or near , ,
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