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Big Soda Lake
The Soda Lakes are two lakes located northwest of Fallon, Nevada. They occupy two basaltic maar volcano craters which may have erupted in the last 1500 years. The larger lake, called Soda Lake or Big Soda Lake, is somewhat elongated, stretching in length. The smaller one, Little Soda Lake, is across. Considered to be a single volcano, the combined craters are young enough that future activity can't be ruled out. A geothermal power plant is located on the northeast flank of the volcano. A significant increase in level of Big Soda Lake occurred in the early 20th century due to increased groundwater table. It became a meromictic lake where the deeper water no longer mixes with surface waters. New tufa formations have served as a rare research example of tufa's rate of growth within a century. Geology Maar volcanoes such as at Soda Lakes are formed by explosive eruptions when magma comes into contact with groundwater. The Lahontan Valley floor around Soda Lakes consists of ancient ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Churchill County, Nevada
Churchill County is a county in the western U.S. state of Nevada. As of the 2020 census, the population was 25,516. Its county seat is Fallon. Named for Mexican–American War hero brevet Brigadier General Sylvester Churchill, the county was formed in 1861. Churchill County comprises the Fallon, NV Micropolitan Statistical Area. It is in northwestern Nevada. Churchill County is noteworthy in that it owns and operates the local telephone carrier, Churchill County Communications. History Churchill County was established in 1861, and was named for Fort Churchill (which is now in Lyon County), which was named for General Sylvester Churchill, a Mexican–American War hero who was Inspector General of the U.S. Army in 1861. Churchill County was not organized until 1864, and its first county seat was Bucklands (which is now in Lyon County). In 1864 the county seat was moved to La Plata; in 1868 it was moved to Stillwater; and in 1904 it was settled in its present position, Fallo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nevada Bureau Of Mines And Geology
The Nevada Bureau of Mines and Geology (NBMG) is a research and public service unit of the University of Nevada and the State Geological Survey. NBMG is also part of the Mackay School of Earth Sciences and Engineering at the University of Nevada in Reno. Scientists with the NBMG conduct research and publish their findings around topics which include, mineral and energy resources, engineering geology, environmental geology, earthquakes, groundwater, and geologic mapping in Nevada. In addition, the NBMG provides special services in the field of analytical geochemistry and assay standards, mineral and rock identification. The NBMG provides earth-science education and in-service teacher training and continuing education for professional geoscientists, geologic and geotechnical information. The NBMG operates the State's abandoned mine lands program, to identify, rank the degree of hazard, and secure mine sites that are no longer operating. Since the inception of the program, over 2,40 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nevada State Route 723
State Route 723 (SR 723) is a state highway in Churchill County, Nevada, running through a rural area northwest of Fallon. Route description SR 723 begins at a junction with U.S. Route 50 (US 50) approximately west of downtown Fallon. From there, the highway runs northward along Soda Lake Road, a two-lane road through mostly residential and rural agricultural areas. The highway follows Soda Lake Road due north for about before reaching its terminus at an intersection with Cox Road, on the southeastern flank of the Soda Lakes volcano. Near the northern end of SR723 are the Soda Lakes, Soda Lake Geothermal Plant, now-closed Coast Guard LORAN-C transmitter Fallon LORAN-C transmitter Fallon was the Master station of the U.S. West Coast LORAN-C Chain ( GRI 9940). It used a transmission power of 400 kW. The Fallon LORAN-C transmitter was situated near Fallon, Nevada at () near Nevada State Route 723 and the So ... and some farms around the periphery of Soda Lakes. History The a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chemocline
A chemocline is a type of cline, a layer of fluid with different properties, characterized by a strong, vertical chemistry gradient within a body of water. In bodies of water where chemoclines occur, the cline separates the upper and lower layers, resulting in different properties for those layers. The lower layer shows a change in the concentration of dissolved gases and solids compared to the upper layer. Chemoclines most commonly occur where local conditions favor the formation of anoxic bottom water — deep water deficient in oxygen, where only anaerobic forms of life can exist. Common anaerobic organisms that live in these conditions include phototrophic purple sulfur bacteria and green sulfur bacteria. The Black Sea is an example of a body of water with a prominent chemocline, though similar bodies (classified as meromictic lakes) exist across the globe. Meromictic lakes are the result of meromixis, which is a circumstance where a body of water does not fully mix and cir ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anoxic Waters
Anoxic waters are areas of sea water, fresh water, or groundwater that are depleted of dissolved oxygen. The US Geological Survey defines anoxic groundwater as those with dissolved oxygen concentration of less than 0.5 milligrams per litre. Anoxic waters can be contrasted with hypoxic waters, which are low (but not lacking) in dissolved oxygen. This condition is generally found in areas that have restricted water exchange. In most cases, oxygen is prevented from reaching the deeper levels by a physical barrier, as well as by a pronounced density stratification, in which, for instance, heavier hypersaline waters rest at the bottom of a basin. Anoxic conditions will occur if the rate of oxidation of organic matter by bacteria is greater than the supply of dissolved oxygen. Anoxic waters are a natural phenomenon, and have occurred throughout geological history. The Permian–Triassic extinction event, a mass extinction of species from the world's oceans, may have resulted from w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Derby Dam
Derby Dam is a diversion dam built from 1903 to 1905 on the Truckee River, located about east of Reno, Nevada, Reno in Storey County, Nevada, Storey and Washoe County, Nevada, Washoe counties in Nevada, United States. It diverts water into the Truckee Canal that would otherwise enter Pyramid Lake (Nevada), Pyramid Lake. The canal feeds Lake Lahontan (reservoir), Lake Lahontan reservoir in the Carson River drainage basin, watershed, where it is used for irrigation. It was the first project of the newly organized U.S. Reclamation Service (known today as the U.S. Bureau of Reclamation), organized by the Reclamation Act of 1902. As a result of the diversion, Winnemucca Lake lost inflow and dried up, and Pyramid Lake lost more than in elevation, resulting in the near-extinction of the Lahontan cutthroat trout. The dam is operated by the Truckee-Carson Irrigation District. It was named after the Derby Southern Pacific Railroad station. History The dam was constructed for the U. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Truckee River
The Truckee River is a river in the U.S. states of California and Nevada. The river flows northeasterly and is long.U.S. Geological Survey. National Hydrography Dataset high-resolution flowline dataThe National Map accessed October 20, 2012 The Truckee is the sole outlet of Lake Tahoe and drains part of the high Sierra Nevada, emptying into Pyramid Lake in the Great Basin. Its waters are an important source of irrigation along its valley and adjacent valleys. Naming of the river When John C. Frémont and Kit Carson ascended the Truckee River on January 16, 1844, they called it the Salmon Trout River, after the huge Lahontan cutthroat trout (''Oncorhynchus clarki henshawi'') that ran up the river from Pyramid Lake to spawn. However, the river was ultimately named after a Paiute chief known as Truckee, who in 1844 guided an emigrant party from the headwaters of the Humboldt River to California via the Truckee River, Donner Lake, and Donner Pass. Appreciative of their Native Amer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carson River
The Carson River is a northwestern List of Nevada rivers, Nevada river that empties into the Carson Sink, an endorheic basin. The main stem of the river is long although the addition of the East Fork makes the total length , traversing five counties: Alpine County, California, Alpine County in California and Douglas County, Nevada, Douglas, Storey County, Nevada, Storey, Lyon County, Nevada, Lyon, and Churchill County, Nevada, Churchill Counties in Nevada, as well as the Consolidated Municipality of Carson City, Nevada. The river is named for Kit Carson, who guided John C. Frémont's expedition westward up the Carson Valley and across Carson Pass in winter, 1844. The river made the National Priorities List (NPL) on October 30, 1990 as the Carson River Mercury Superfund site (CRMS) due to investigations that showed trace amounts of Mercury (element), mercury in the wildlife and watershed sediments. History Archaeological findings place the eastern border for the prehistoric Mart ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lahontan Dam
The Lahontan Dam is a dam situated on the Carson River in the Carson Desert between Carson City, Nevada and Fallon, Nevada in the United States. Its impoundment is known as the Lahontan Reservoir or Lake Lahontan. It is currently operated by the Truckee-Carson Irrigation District. The Lahontan Dam was built by the Bureau of Reclamation as part of the Newlands Project. It is an earthen structure, high by long and contains of fill. When it was completed in 1915, it was the largest earth-fill dam in the United States. The reservoir receives water from an area of and provides a storage capacity of at spillway crest. An additional can be stored by raising the gates, bringing the total capacity to . The primary purpose of the dam is to impound water for irrigation use. The site also includes hydroelectric generators with a total capacity of 4,000 kilowatts. History Construction began as part of the Truckee-Carson Project in 1911 and Lahontan City, Nevada, a company to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nevada Appeal
The ''Nevada Appeal'' is a twice-weekly newspaper published in Carson City, Nevada, by Pacific Publishing Company. The paper has sister publications across northern Nevada: *''Lahontan Valley News'' & Fallon Eagle Standard (Fallon, Nevada) *''Northern Nevada Business View'' (Reno, Nevada) *''The Record-Courier'' (Gardnerville, Nevada) History The ''Nevada Appeal'' was first published in on May 16, 1865, as the ''Carson Daily Appeal.'' It claims to be the oldest continuously published newspaper in Nevada, as well as be the oldest continuously operating business in Carson City. It was renamed the ''Daily State Register'' in 1870. In 1872, the ''Register'' merged with the ''New Daily Appeal,'' which had been founded earlier in 1872 by the first editor of the original ''Daily Appeal'', Henry Rust Mighels, earlier in the year. The paper dropped the "New" from its masthead in 1873. In May 1877 it was renamed the Morning Appeal, then it went back to being the Daily Appeal in 1906 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Soda Lake
A soda lake or alkaline lake is a lake on the strongly alkaline side of neutrality, typically with a pH value between 9 and 12. They are characterized by high concentrations of carbonate salts, typically sodium carbonate (and related salt complexes), giving rise to their alkalinity. In addition, many soda lakes also contain high concentrations of sodium chloride and other dissolved salts, making them saline or hypersaline lakes as well. High pH and salinity often coincide, because of how soda lakes develop. The resulting hypersaline and highly alkalic soda lakes are considered some of the most extreme aquatic environments on Earth.Grant, W. D. (2006). ''Alkaline environments and biodiversity.'' in ''Extremophiles'', 2006, UNESCO / Eolss Publishers, Oxford, UK In spite of their apparent inhospitability, soda lakes are often highly productive ecosystems, compared to their (pH-neutral) freshwater counterparts. Gross primary production (photosynthesis) rates above (grams of carbon p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Forty Mile Desert
The Lahontan Valley is a basin in Churchill County, Nevada, United States. The valley is a landform of the central portion of the prehistoric Lake Lahontan's lakebed of 20,000-9,000 years ago. The valley and the adjacent Carson Sink represent a small portion of the lake bed. Humboldt Lake is to the valley's northeast. Pyramid Lake is west. Walker Lake is to the south. The valley is part of the larger Great Basin Desert, however during the California Gold Rush the valley was often called the Forty Mile Desert. Description The Lahontan Valley is mostly uninhabited desert, aside from the city of Fallon and the Fallon Paiute-Shoshone Reservation. There is sparse habitation in farmland around the Carson River and irrigation canals surrounding Fallon, an arc of farms around the Soda Lakes volcano, the railroad junction at Hazen and the ghost town of Stillwater. There is a geothermal power plant at Soda Lake and combined geothermal/solar plant at Stillwater. The valley derives i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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