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Rare pieces of Earth's mantle identified around Baltimore

Golfers drive past ultramafic rock near the ninth hole at Forest Park Golf Course in Baltimore.
(Jerry Jackson/Baltimore Sun)

Rare pieces of Earth's mantle identified around Baltimore

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New research has concluded that several areas around Baltimore are part of geological upheaval that's hundreds of millions of years old.
Soldiers Delight
Seen from above, Soldiers Delight Natural Environmental Area in Owings Mills has large areas where plant growth is stunted. These ecosystems sit on top of serpentinite, an oceanic rock high in magnesium with few essential nutrients for plant growth.
Seen from above, Soldiers Delight Natural Environmental Area in Owings Mills has large areas where plant growth is stunted. These ecosystems sit on top of serpentinite, an oceanic rock high in magnesium with few essential nutrients for plant growth. (Jerry Jackson/Baltimore Sun)
Soldiers Delight
Exposed mantle rock is seen along a power line access road in Soldiers Delight.
Exposed mantle rock is seen along a power line access road in Soldiers Delight. (Jerry Jackson/Baltimore Sun)
Hollofield Quarry
Geologist George Guice assesses the rocks at Hollofield Quarry.
Geologist George Guice assesses the rocks at Hollofield Quarry. (Joseph Browning-Hanson/handout)
Forest Park Golf Course
Golfers drive past ultramafic rock near the ninth hole at Forest Park Golf Course in Baltimore.
Golfers drive past ultramafic rock near the ninth hole at Forest Park Golf Course in Baltimore. (Jerry Jackson/Baltimore Sun)
Soldiers Delight
The serpentine rock around Soldiers Delight is rich in the mineral chromite. Entrepreneur Isaac Tyson Jr. began mining the area in 1828, producing most of the world's chromium at the time.
The serpentine rock around Soldiers Delight is rich in the mineral chromite. Entrepreneur Isaac Tyson Jr. began mining the area in 1828, producing most of the world's chromium at the time. (Jerry Jackson/Baltimore Sun)
Quarry Place
A former quarry turned housing development in Owings Mills was assessed by team of geologists looking for mantle rock in Baltimore.
A former quarry turned housing development in Owings Mills was assessed by team of geologists looking for mantle rock in Baltimore. (Jerry Jackson/Baltimore Sun)
Soldiers Delight
Tracks lead to Choate Mine in Soldiers Delight, one of several chromite mines in the serpentine rock in the area.
Tracks lead to Choate Mine in Soldiers Delight, one of several chromite mines in the serpentine rock in the area. (Jerry Jackson/Baltimore Sun)
Lake Ashburton
Contractors work on the Ashburton Tanks Project in 2019, part of the Baltimore Department of Public Works project to convert open-air drinking water lakes to buried tanks.
Contractors work on the Ashburton Tanks Project in 2019, part of the Baltimore Department of Public Works project to convert open-air drinking water lakes to buried tanks. (Jerry Jackson/Baltimore Sun)
Falls Road
Rocks along Falls Road at Bare Hills are among those assessed by a team of geologists looking for mantle rock in Baltimore.
Rocks along Falls Road at Bare Hills are among those assessed by a team of geologists looking for mantle rock in Baltimore. (Jerry Jackson/Baltimore Sun)
Hollofield Quarry
Geologist George Guice assesses the rocks at Hollofield Quarry.
Geologist George Guice assesses the rocks at Hollofield Quarry. (Joseph Browning-Hanson/handout)
Soldiers Delight
Naomi Becker sitting on the mantle at Soldier's Delight.
Naomi Becker sitting on the mantle at Soldier's Delight. (George Guice/handout)
Bare Hills
Freya George (from left), Naomi Becker and Daniel Viete assess the rocks at Bare Hills along Falls Road.
Freya George (from left), Naomi Becker and Daniel Viete assess the rocks at Bare Hills along Falls Road. (George Guice/handout)
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