| 11. | Tunnel valleys were formed by subglacial erosion by water.
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| 12. | Subglacial eruptions occur when a volcano erupts under ice.
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| 13. | Antarctica has several subglacial lakes underneath its ice sheet.
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| 14. | Subglacial volcanic eruptions are identified by layers of high concentrations of NO and SO.
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| 15. | These volcanics were erupted under more than of glacial ice to produce subglacial eruptions.
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| 16. | Instead, the eruption produced a subglacial mound.
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| 17. | The steep profile of the volcanic field and its subglacial landforms support this hypothesis.
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| 18. | Its source is a subglacial pool, of unknown size, which sometimes overflows.
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| 19. | The test returned a clean subglacial sample from the outflow channel from Blood Falls.
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| 20. | She is one of few women working on technology development for exploring subglacial lakes.
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