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Kruzgamepa River
The Kruzgamepa River (or Pilgrim River) is a tributary of the Kuzitrin River on the Seward Peninsula in the U.S. state of Alaska. The river begins at Salmon Lake, elevation , and descends to above sea level at its mouth. In turn, the Kuzitrin River empties into the Imuruk Basin. The basin drains via the bay of Port Clarence to the Bering Sea. In the upper reaches of the watershed, the Kruzgamepa and Grand Central rivers form one stream but are known by different names, and their physical features vary somewhat. The Grand Central flows into Salmon Lake while the Kruzgamepa flows out. Geography Salmon Lake, the source of the river, lies in a broad valley at the southern base of the Kigluaik Mountains. The Kruzgamepa flows to the northeast and, sweeping around the east end of the range, reaches the head of Imuruk Basin by a northwesterly course. The drainage basin of the upper Kruzgamepa was first organized as the Golden Gate mining district, and is now included in the Kougarok mi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States
The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territories, nine Minor Outlying Islands, and 326 Indian reservations. The United States is also in free association with three Pacific Island sovereign states: the Federated States of Micronesia, the Marshall Islands, and the Republic of Palau. It is the world's third-largest country by both land and total area. It shares land borders with Canada to its north and with Mexico to its south and has maritime borders with the Bahamas, Cuba, Russia, and other nations. With a population of over 333 million, it is the most populous country in the Americas and the third most populous in the world. The national capital of the United States is Washington, D.C. and its most populous city and principal financial center is New York City. Paleo-Americ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bering Sea
The Bering Sea (, ; rus, Бе́рингово мо́ре, r=Béringovo móre) is a marginal sea of the Northern Pacific Ocean. It forms, along with the Bering Strait, the divide between the two largest landmasses on Earth: Eurasia and The Americas. It comprises a deep water basin, which then rises through a narrow slope into the shallower water above the continental shelf, continental shelves. The Bering Sea is named for Vitus Bering, a Denmark, Danish navigator in Russian service, who, in 1728, was the first European to systematically explore it, sailing from the Pacific Ocean northward to the Arctic Ocean. The Bering Sea is separated from the Gulf of Alaska by the Alaska Peninsula. It covers over and is bordered on the east and northeast by Alaska, on the west by the Russian Far East and the Kamchatka Peninsula, on the south by the Alaska Peninsula and the Aleutian Islands and on the far north by the Bering Strait, which connects the Bering Sea to the Arctic Ocean's Chukchi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rivers Of Alaska
This is a List of rivers in Alaska, which are at least fifth-order according to the Strahler method of stream classification, and an incomplete list of otherwise-notable rivers and streams. Alaska has more than 12,000 rivers, and thousands more streams and creeks. According to United States Geological Survey Geographic Names Information System, Alaska has about 9,728 officially named rivers, creeks, and streams. The length of the river is given if it is available from the United States Geological Survey Geographic Names Information System (GNIS). By drainage basin This list is arranged by drainage basin, with respective tributaries ordered from mouth to source, and indented under their downstream parent's name. Arctic Ocean *Firth River – * Kongakut River – * Aichilik River – * Jago River – * Okpilak River – * Hulahula River – * Sadlerochit River – *Canning River – ** Marsh Fork Canning River – * Shaviovik River – ** Kavik River – * Kadleroshili ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rivers Of The Seward Peninsula
A river is a natural flowing watercourse, usually freshwater, flowing towards an ocean, sea, lake or another river. In some cases, a river flows into the ground and becomes dry at the end of its course without reaching another body of water. Small rivers can be referred to using names such as creek, brook, rivulet, and rill. There are no official definitions for the generic term river as applied to geographic features, although in some countries or communities a stream is defined by its size. Many names for small rivers are specific to geographic location; examples are "run" in some parts of the United States, "burn" in Scotland and northeast England, and "beck" in northern England. Sometimes a river is defined as being larger than a creek, but not always: the language is vague. Rivers are part of the water cycle. Water generally collects in a river from precipitation through a drainage basin from surface runoff and other sources such as groundwater recharge, springs, an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Rivers Of Alaska
This is a List of rivers in Alaska, which are at least fifth-order according to the Strahler method of stream classification, and an incomplete list of otherwise-notable rivers and streams. Alaska has more than 12,000 rivers, and thousands more streams and creeks. According to United States Geological Survey Geographic Names Information System, Alaska has about 9,728 officially named rivers, creeks, and streams. The length of the river is given if it is available from the United States Geological Survey Geographic Names Information System (GNIS). By drainage basin This list is arranged by drainage basin, with respective tributaries ordered from mouth to source, and indented under their downstream parent's name. Arctic Ocean *Firth River – * Kongakut River – * Aichilik River – * Jago River – * Okpilak River – * Hulahula River – * Sadlerochit River – *Canning River – ** Marsh Fork Canning River – * Shaviovik River – ** Kavik River – * Kadleroshili ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydraulicking
Hydraulic mining is a form of mining that uses high-pressure jets of water to dislodge rock material or move sediment.Paul W. Thrush, ''A Dictionary of Mining, Mineral, and Related Terms'', US Bureau of Mines, 1968, p.560. In the placer mining of gold or tin, the resulting water-sediment slurry is directed through sluice boxes to remove the gold. It is also used in mining kaolin and coal. Hydraulic mining developed from ancient Roman techniques that used water to excavate soft underground deposits. Its modern form, using pressurized water jets produced by a nozzle called a "monitor", came about in the 1850s during the California Gold Rush in the United States. Though successful in extracting gold-rich minerals, the widespread use of the process resulted in extensive environmental damage, such as increased flooding and erosion, and sediment blocking waterways and covering farm fields. These problems led to its legal regulation. Hydraulic mining has been used in various forms around ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Strike And Dip
Strike and dip is a measurement convention used to describe the orientation, or attitude, of a planar geologic feature. A feature's strike is the azimuth of an imagined horizontal line across the plane, and its dip is the angle of inclination measured downward from horizontal. They are used together to measure and document a structure's characteristics for study or for use on a geologic map. A feature's orientation can also be represented by dip and dip direction, using the azimuth of the dip rather than the strike value. Linear features are similarly measured with trend and plunge, where "trend" is analogous to dip direction and "plunge" is the dip angle. Strike and dip are measured using a compass and a clinometer. A compass is used to measure the feature's strike by holding the compass horizontally against the feature. A clinometer measures the features dip by recording the inclination perpendicular to the strike. These can be done separately, or together using a tool such a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Schist
Schist ( ) is a medium-grained metamorphic rock showing pronounced schistosity. This means that the rock is composed of mineral grains easily seen with a low-power hand lens, oriented in such a way that the rock is easily split into thin flakes or plates. This texture (geology), texture reflects a high content of platy minerals, such as micas, talc, chlorite group, chlorite, or graphite. These are often interleaved with more granular minerals, such as feldspar or quartz. Schist typically forms during regional metamorphism accompanying the process of mountain building (orogeny) and usually reflects a medium Metamorphism#Metamorphic grades, grade of metamorphism. Schist can form from many different kinds of rocks, including sedimentary rocks such as mudstones and igneous rocks such as tuffs. Schist metamorphosed from mudstone is particularly common and is often very rich in mica (a ''mica schist''). Where the type of the original rock (the protolith) is discernible, the schist is us ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Limestone
Limestone ( calcium carbonate ) is a type of carbonate sedimentary rock which is the main source of the material lime. It is composed mostly of the minerals calcite and aragonite, which are different crystal forms of . Limestone forms when these minerals precipitate out of water containing dissolved calcium. This can take place through both biological and nonbiological processes, though biological processes, such as the accumulation of corals and shells in the sea, have likely been more important for the last 540 million years. Limestone often contains fossils which provide scientists with information on ancient environments and on the evolution of life. About 20% to 25% of sedimentary rock is carbonate rock, and most of this is limestone. The remaining carbonate rock is mostly dolomite, a closely related rock, which contains a high percentage of the mineral dolomite, . ''Magnesian limestone'' is an obsolete and poorly-defined term used variously for dolomite, for limes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grand Central River
Grand Central River is a waterway on the Seward Peninsula in the U.S. state of Alaska. It enters Salmon Lake from the west. Although the Grand Central and Kruzgamepa (or Pilgrim) rivers form one stream, their names differ, and their physical features vary. The Grand Central flows into Salmon Lake, while the Kruzgamepa flows out. Geography The river is about long and wide. The drainage area of this stream is almost surrounded by ridges of the Sawtooth Range (Kigluaik Mountains), having elevations of . The river is formed near the foot of Mount Osborn, at an elevation of about , by the junction of North and West forks, and flows in a southerly direction into Salmon Lake. From the forks to Salmon Lake, the river has a fall of about , and at high stages, spreads over a wide gravel bed. On either side, there is a little bottom land, from which the mountains rise abruptly. The principal tributaries of Grand Central River below the forks are Gold Run and Rainbow Creek from the east, an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Port Clarence, Alaska
Port Clarence is a census-designated place (CDP) in Nome Census Area, Alaska. The population was 24 at the 2010 census, up from 21 in 2000. It is located on the spit separating Port Clarence Bay from the Bering Strait. History Missionary Sheldon Jackson's greatest success with his Teller Reindeer Station at Port Clarence, figured in the Overland Relief Expedition in 1897 to save marooned whalers near Point Barrow. During the 1898-1899 gold rush in Nome, smaller quantities of both gold and high-grade tin were mined in Port Clarence. The Harriman Alaska Expedition visited Port Clarence in 1899, making a photographic record of Alaska Natives. In 1900, the U.S. Coast and Geodetic Survey charted the coastline. From 1961–2010 Port Clarence was a LORAN-C station administered by the U.S. Coast Guard. The LORAN-C Program was terminated Feb. 8, 2010. The U.S. Coast Guard commissioned a 1350 ft. (411.48 metre) tall Loran-C tower in 1961. It was the tallest structure in Alask ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alaska
Alaska ( ; russian: Аляска, Alyaska; ale, Alax̂sxax̂; ; ems, Alas'kaaq; Yup'ik: ''Alaskaq''; tli, Anáaski) is a state located in the Western United States on the northwest extremity of North America. A semi-exclave of the U.S., it borders the Canadian province of British Columbia and the Yukon territory to the east; it also shares a maritime border with the Russian Federation's Chukotka Autonomous Okrug to the west, just across the Bering Strait. To the north are the Chukchi and Beaufort Seas of the Arctic Ocean, while the Pacific Ocean lies to the south and southwest. Alaska is by far the largest U.S. state by area, comprising more total area than the next three largest states (Texas, California, and Montana) combined. It represents the seventh-largest subnational division in the world. It is the third-least populous and the most sparsely populated state, but by far the continent's most populous territory located mostly north of the 60th parallel, with ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
