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Basalt
Igneous
Volcanic Dike
Years BP
Geophysics
paleomagnetism
548500
548500000
561000
561000000
7300000
990000
Antarctica
Breccia
Chilled Margin
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Earth and Planetary Sciences (miscellaneous)
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James Ross Island
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Paleoclimate
Paleoclimate science
Sea Level Change
Sedimentary
Sill