| 释义 |
Definition of nunatak in English: nunataknoun ˈnʌnətakˈnənəˌtak An isolated peak of rock projecting above a surface of inland ice or snow. Example sentencesExamples - McCarroll & Ballantyne suggested that the ice reached an elevation of only between 750 and 850 m a.s.l. in Snowdonia, NW Wales, and that the higher summits remained above the ice surface as nunataks.
- Distinctive rock types found on the westernmost nunataks around Hamberg Gletscher are interpreted as autochthonous Caledonian foreland.
- Remapping of several nunataks and ridge exposures reveals that the basal Neptune Group truncates a large-scale, closed syncline, developed within the Nelson Limestone.
- Although no evidence for discrete dextral structures has been found in the Neptune Range, such a structure or structures could lie unexposed along the Roderick Valley or outside of the mountains and nunataks of the Neptune Range.
- This would leave Scafell Pikes and other peaks protruding as nunataks, consistent with the observations of Lamb & Ballantyne.
Origin Late 19th century: from Greenlandic nunataq. Definition of nunatak in US English: nunataknounˈnənəˌtak An isolated peak of rock projecting above a surface of inland ice or snow. Example sentencesExamples - McCarroll & Ballantyne suggested that the ice reached an elevation of only between 750 and 850 m a.s.l. in Snowdonia, NW Wales, and that the higher summits remained above the ice surface as nunataks.
- This would leave Scafell Pikes and other peaks protruding as nunataks, consistent with the observations of Lamb & Ballantyne.
- Although no evidence for discrete dextral structures has been found in the Neptune Range, such a structure or structures could lie unexposed along the Roderick Valley or outside of the mountains and nunataks of the Neptune Range.
- Distinctive rock types found on the westernmost nunataks around Hamberg Gletscher are interpreted as autochthonous Caledonian foreland.
- Remapping of several nunataks and ridge exposures reveals that the basal Neptune Group truncates a large-scale, closed syncline, developed within the Nelson Limestone.
Origin Late 19th century: from Greenlandic nunataq. |