The Eastern Arctic Seas Encyclopedia

2016 Edition
| Editors: Igor S. Zonn, Andrey G. Kostianoy, Aleksandr V. Semenov

Henrietta Island

Reference work entry
DOI: https://doi.org/10.1007/978-3-319-24237-8_204

Henrietta Island – an island within the De Long Archipelago, in the northeastern part of the New Siberian Islands, the East Siberian Sea, the Sakha Republic (Yakutia), Russia. The northernmost island in the East Siberian Islands. The area is 12 km2 and the height 315 m. The island, just like all the De Long group of islands, belongs to the Verkhoyansk-Chukotka fold zone. The Paleozoic and Mesozoic sandstone standing on end is covered by flood basalt. The island is covered by glaciers; the ice cap with an area of about 6 km2occupies the highest southeastern part of the island. Southern and eastern edges of the cap are limited by cliffs of the underlying basalt plateau, over which the falls of ice dominate for 40–50 m. On the other hand, on the eastern shore, there is only one glacier tongue protruding to the sea in the clough. Vegetation is scarce; besides crustaceous and foliose lichen, it is possible to find rare flowering plants: Arctic poppy, saxifraga, chickweed, artemisia. In...

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