Jeannette Island
Encyclopedia
Island
An island or isle is any piece of sub-continental land that is surrounded by water. Very small islands such as emergent land features on atolls can be called islets, cays or keys. An island in a river or lake may be called an eyot , or holm...
of the De Long Islands
De Long Islands
The De Long Islands are an uninhabited archipelago often included as part of the New Siberian Islands, lying north east of Novaya Sibir. This archipelago consists of Jeannette Island, Henrietta Island, Bennett Island, Vilkitsky Island and Zhokhov Island. These five islands have a total area of...
archipelago
Archipelago
An archipelago , sometimes called an island group, is a chain or cluster of islands. The word archipelago is derived from the Greek ἄρχι- – arkhi- and πέλαγος – pélagos through the Italian arcipelago...
in the East Siberian Sea
East Siberian Sea
The East Siberian Sea is a marginal sea in the Arctic Ocean. It is located between the Arctic Cape to the north, the coast of Siberia to the south, the New Siberian Islands to the west and Cape Billings, close to Chukotka, and Wrangel Island to the east...
. It is the second smallest island of the De Long group, being only 2 km in length. It has an area of approximately 3.3 km² (1 sq mi). The highest peak of the island is 351 m (1,152 ft). It is mainly covered with glacier
Glacier
A glacier is a large persistent body of ice that forms where the accumulation of snow exceeds its ablation over many years, often centuries. At least 0.1 km² in area and 50 m thick, but often much larger, a glacier slowly deforms and flows due to stresses induced by its weight...
s and firn
Firn
Firn is partially-compacted névé, a type of snow that has been left over from past seasons and has been recrystallized into a substance denser than névé. It is ice that is at an intermediate stage between snow and glacial ice...
.
Geology
Jeannette Island consists of folded PaleozoicPaleozoic
The Paleozoic era is the earliest of three geologic eras of the Phanerozoic eon, spanning from roughly...
graywackes overlain by Cenozoic
Cenozoic
The Cenozoic era is the current and most recent of the three Phanerozoic geological eras and covers the period from 65.5 mya to the present. The era began in the wake of the Cretaceous–Tertiary extinction event at the end of the Cretaceous that saw the demise of the last non-avian dinosaurs and...
conglomerates
Conglomerate (geology)
A conglomerate is a rock consisting of individual clasts within a finer-grained matrix that have become cemented together. Conglomerates are sedimentary rocks consisting of rounded fragments and are thus differentiated from breccias, which consist of angular clasts...
. The graywacke is coarse-grained and contains local lenses of conglomerate. An unconformity
Unconformity
An unconformity is a buried erosion surface separating two rock masses or strata of different ages, indicating that sediment deposition was not continuous. In general, the older layer was exposed to erosion for an interval of time before deposition of the younger, but the term is used to describe...
separates the Cenozoic conglomerate from the underlying graywacke. The Cenozoic conglomerate contains well-rounded pebbles, cobbles, and boulders of quartz
Quartz
Quartz is the second-most-abundant mineral in the Earth's continental crust, after feldspar. It is made up of a continuous framework of SiO4 silicon–oxygen tetrahedra, with each oxygen being shared between two tetrahedra, giving an overall formula SiO2. There are many different varieties of quartz,...
sandstone
Sandstone
Sandstone is a sedimentary rock composed mainly of sand-sized minerals or rock grains.Most sandstone is composed of quartz and/or feldspar because these are the most common minerals in the Earth's crust. Like sand, sandstone may be any colour, but the most common colours are tan, brown, yellow,...
, quartzite
Quartzite
Quartzite is a hard metamorphic rock which was originally sandstone. Sandstone is converted into quartzite through heating and pressure usually related to tectonic compression within orogenic belts. Pure quartzite is usually white to gray, though quartzites often occur in various shades of pink...
, diorite
Diorite
Diorite is a grey to dark grey intermediate intrusive igneous rock composed principally of plagioclase feldspar , biotite, hornblende, and/or pyroxene. It may contain small amounts of quartz, microcline and olivine. Zircon, apatite, sphene, magnetite, ilmenite and sulfides occur as accessory...
, andesite
Andesite
Andesite is an extrusive igneous, volcanic rock, of intermediate composition, with aphanitic to porphyritic texture. In a general sense, it is the intermediate type between basalt and dacite. The mineral assemblage is typically dominated by plagioclase plus pyroxene and/or hornblende. Magnetite,...
-basalt
Basalt
Basalt is a common extrusive volcanic rock. It is usually grey to black and fine-grained due to rapid cooling of lava at the surface of a planet. It may be porphyritic containing larger crystals in a fine matrix, or vesicular, or frothy scoria. Unweathered basalt is black or grey...
s, and altered granite
Granite
Granite is a common and widely occurring type of intrusive, felsic, igneous rock. Granite usually has a medium- to coarse-grained texture. Occasionally some individual crystals are larger than the groundmass, in which case the texture is known as porphyritic. A granitic rock with a porphyritic...
.
History
It was discovered in 1881 by the JeannetteUSS Jeannette (1878)
The first USS Jeannette was originally HMS Pandora, a Philomel-class gunvessel of the Royal Navy, and was purchased in 1875 by Sir Allen Young for his arctic voyages in 1875-1876. The ship was purchased in 1878 by James Gordon Bennett, Jr., owner of the New York Herald; and renamed Jeannette...
expedition, commanded by Lieutenant Commander George W. DeLong
George W. DeLong
George Washington DeLong was a United States Navy officer and explorer.- Biography :Born in New York City, he was educated at the United States Naval Academy in Newport, Rhode Island...
, USN
United States Navy
The United States Navy is the naval warfare service branch of the United States Armed Forces and one of the seven uniformed services of the United States. The U.S. Navy is the largest in the world; its battle fleet tonnage is greater than that of the next 13 largest navies combined. The U.S...
. United States explorer and US Navy
United States Navy
The United States Navy is the naval warfare service branch of the United States Armed Forces and one of the seven uniformed services of the United States. The U.S. Navy is the largest in the world; its battle fleet tonnage is greater than that of the next 13 largest navies combined. The U.S...
Lieutenant Commander George W. DeLong set out in 1879 aboard the Jeannette
USS Jeannette (1878)
The first USS Jeannette was originally HMS Pandora, a Philomel-class gunvessel of the Royal Navy, and was purchased in 1875 by Sir Allen Young for his arctic voyages in 1875-1876. The ship was purchased in 1878 by James Gordon Bennett, Jr., owner of the New York Herald; and renamed Jeannette...
, hoping to reach Wrangel Island
Wrangel Island
Wrangel Island is an island in the Arctic Ocean, between the Chukchi Sea and East Siberian Sea. Wrangel Island lies astride the 180° meridian. The International Date Line is displaced eastwards at this latitude to avoid the island as well as the Chukchi Peninsula on the Russian mainland...
and to discover open seas in the Arctic Ocean
Arctic Ocean
The Arctic Ocean, located in the Northern Hemisphere and mostly in the Arctic north polar region, is the smallest and shallowest of the world's five major oceanic divisions...
near the North Pole
North Pole
The North Pole, also known as the Geographic North Pole or Terrestrial North Pole, is, subject to the caveats explained below, defined as the point in the northern hemisphere where the Earth's axis of rotation meets its surface...
. However, the ship entered an ice pack near Herald Island
Herald Island (Arctic)
Herald Island or Gerald Island is a small, isolated Russian island in the Chukchi Sea, to the east of Wrangel Island. It rises in sheer cliffs, making it quite inaccessible, either by ship or by plane. The only sliver of shoreline is at its northwestern point, where the cliffs have crumbled into...
in September 1879 and became trapped. The vessel drifted several hundred miles with the ice, passing north of Wrangel Island. In May 1881 it approached Jeannette Island and Henrietta Island
Henrietta Island
Henrietta Island is the northernmost island of the De Long archipelago in the East Siberian Sea. 40% of the island is covered with glaciers. Henrietta is roughly circular in shape and its diameter is about 6 km...
. According to The Annual Report of the Secretary of the Navy, for the Year 1882 (pg.16), "A sled party landed, hoisted the national ensign, and took possession in the name of the United States. The excursion, led by George W. Melville
George W. Melville
George Wallace Melville was an engineer of the United States Navy who became a rear admiral.-Civil War:Melville was born in New York City on 10 January 1841. After graduating from Brooklyn Collegiate and Polytechnic Institute, he entered the U.S...
, landed on June 2 or 3, constructed a cairn, and placed inside it a record of their visit.
Boris Vilkitsky
Boris Andreyevich Vilkitsky was a Russian hydrographer and surveyor. He was the son of Andrey Ippolitovich Vilkitsky....
, the Vaygach
Icebreaker Vaygach
Icebreaker Vaygach was an icebreaking steamer of moderate size built for the Russian Imperial Navy at St. Petersburg in 1909. It was named after Vaygach Island in the Russian Arctic....
approached Jeannette Island with the intention of mapping Jeannette and Henrietta Islands, but heavy ice blocked the approach. In 1916 the Russian ambassador in London issued an official notice to the effect that the Imperial government considered Henrietta, along with other Arctic islands, integral parts of the Russian Empire
Russian Empire
The Russian Empire was a state that existed from 1721 until the Russian Revolution of 1917. It was the successor to the Tsardom of Russia and the predecessor of the Soviet Union...
. This territorial claim was later maintained by the Soviet Union
Soviet Union
The Soviet Union , officially the Union of Soviet Socialist Republics , was a constitutionally socialist state that existed in Eurasia between 1922 and 1991....
.
External links
- Anisimov, M.A., and V.E. Tumskoy, 2002, Environmental History of the Novosibirskie Islands for the last 12 ka. 32nd International Arctic Workshop, Program and Abstracts 2002. Institute of Arctic and Alpine Research, University of Colorado at Boulder, pp 23–25.
- Headland, R. K.,1994, OSTROVA DE-LONGA ('De Long Islands'), Scott Polar Research Institute, University of Cambridge, Cambridge, United Kingdom.
- Naval Historical Center, 2003, Jeannette Arctic Expedition, 1879-1881 — Overview and Selected Images. Last visited May 26, 2008.
- Schirrmeister, L., H.-W. Hubberten, V. Rachold, and V.G. Grosse, 2005, Lost world - Late Quaternary environment of periglacial Arctic shelves and coastal lowlands in NE-Siberia. 2nd International Alfred Wegener Symposium Bremerhaven, October, 30 - November 2, 2005.