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Press Release 10-232

Iron Furnaces Leave Legacy: Soil High in Manganese

Central Pennsylvania lands, once dotted with iron furnaces, retain traces of earlier burning

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Photo of an iron furnace in Ligonier Valley, Pennsylvania.

Iron furnaces in Pennsylvania, like this one in Ligonier Valley, may have left a legacy in soils.

Credit: Ligonier Valley Historical Society


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Photo of fall leaves at the Susquehanna Shale Hills Observatory.

Fall leaves at the Susquehanna Shale Hills Observatory, one of six such NSF observatories.

Credit: Elizabeth Herndon, Penn State University


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Photo of scientists Elizabeth Herndon and Danielle Andrews collecting samples.

Shale Hills Observatory scientists Elizabeth Herndon and Danielle Andrews collect samples.

Credit: Mark Selders, Mark Selders Photography


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Photo of a precipitation collector, eddy flux tower measuring land-air interaction at Shale Hills.

Precipitation collector, eddy flux tower measure land-air interaction at Shale Hills.

Credit: Mark Selders, Mark Selders Photography


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Photo of a nest of instruments in the Shale Hills that collect fluids from the soil.

Instruments installed in "nests" throughout Shale Hills collect fluids from the soil.

Credit: Mark Selders, Mark Selders Photography


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Photo of students making observations on Shale Hills soils for an environmental geochemistry course.

Students make observations on Shale Hills soils for an environmental geochemistry course.

Credit: Elizabeth Herndon, Penn State University


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