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Gold Hill, Placer County, California
Gold Hill (formerly, Orr City) is an unincorporated community in Placer County, California. Gold Hill is located west of Auburn. It lies at an elevation of 354 feet (108 m). Gold Hill is located within the Sierra Nevada foothills, in a geologic region known as the West Belt, so named because it is west of the Mother Lode Belt. This West Belt contained scattered deposits of gold in quartz veins within the granitic bedrock. In 1851, after gold was discovered in Ophir and Auburn, Georgian prospectors followed the Auburn Ravine, looking for similar placer gold. They found gold in the ravine near an elevated area they named Gold Hill. In addition to the gravel deposits, the hill itself was developed by two companies, known as the Georgia and the Ohio, using ground sluicing from water in the ravine. The town's civil government was organized in the spring of 1852, with the election of a Justice of the Peace, and a Constable A constable is a person holding a particular office, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Unincorporated Area
An unincorporated area is a region that is not governed by a local municipal corporation. Widespread unincorporated communities and areas are a distinguishing feature of the United States and Canada. Most other countries of the world either have no unincorporated areas at all or these are very rare: typically remote, outlying, sparsely populated or List of uninhabited regions, uninhabited areas. By country Argentina In Argentina, the provinces of Chubut Province, Chubut, Córdoba Province (Argentina), Córdoba, Entre Ríos Province, Entre Ríos, Formosa Province, Formosa, Neuquén Province, Neuquén, Río Negro Province, Río Negro, San Luis Province, San Luis, Santa Cruz Province, Argentina, Santa Cruz, Santiago del Estero Province, Santiago del Estero, Tierra del Fuego Province, Argentina, Tierra del Fuego, and Tucumán Province, Tucumán have areas that are outside any municipality or commune. Australia Unlike many other countries, Australia has only local government in Aus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Granitic
A granitoid is a generic term for a diverse category of coarse-grained igneous rocks that consist predominantly of quartz, plagioclase, and alkali feldspar. Granitoids range from plagioclase-rich tonalites to alkali-rich syenites and from quartz-poor monzonites to quartz-rich quartzolites. As only two of the three defining mineral groups (quartz, plagioclase, and alkali feldspar) need to be present for the rock to be called a granitoid, foid-bearing rocks, which predominantly contain feldspars but no quartz, are also granitoids. The terms ''granite'' and ''granitic rock'' are often used interchangeably for granitoids; however, granite is just one particular type of granitoid. Granitoids are diverse; no classification system for granitoids can give a complete and unique characterization of the origin, compositional evolution, and geodynamic environment for the genesis of a granitoid. Accordingly, multiple granitoid classification systems have been developed such as those based ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Constable
A constable is a person holding a particular office, most commonly in criminal law enforcement. The office of constable can vary significantly in different jurisdictions. A constable is commonly the rank of an officer within the police. Other people may be granted powers of a constable without holding this title. Etymology Historically, the title comes from the Latin ''comes stabuli'' ( attendant to the stables, literally ''count of the stable'') and originated from the Roman Empire; originally, the constable was the officer responsible for keeping the horses of a lord or monarch.p103, Bruce, Alistair, ''Keepers of the Kingdom'' (Cassell, 2002), Constable Encyclopædia Britannica online The title was imported to the monarchy, monarchies of Middle Ages, medieval Europe, and in many countries developed into a high military rank an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Justice Of The Peace
A justice of the peace (JP) is a judicial officer of a lower or ''puisne'' court, elected or appointed by means of a commission ( letters patent) to keep the peace. In past centuries the term commissioner of the peace was often used with the same meaning. Depending on the jurisdiction, such justices dispense summary justice or merely deal with local administrative applications in common law jurisdictions. Justices of the peace are appointed or elected from the citizens of the jurisdiction in which they serve, and are (or were) usually not required to have any formal legal education in order to qualify for the office. Some jurisdictions have varying forms of training for JPs. History In 1195, Richard I ("the Lionheart") of England and his Minister Hubert Walter commissioned certain knights to preserve the peace in unruly areas. They were responsible to the King in ensuring that the law was upheld and preserving the " King's peace". Therefore, they were known as "keepers of th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Placer Gold
Placer mining () is the mining of stream bed (alluvial) deposits for minerals. This may be done by open-pit (also called open-cast mining) or by various surface excavating equipment or tunneling equipment. Placer mining is frequently used for precious metal deposits (particularly gold) and gemstones, both of which are often found in alluvial deposits—deposits of sand and gravel in modern or ancient stream beds, or occasionally glacial deposits. The metal or gemstones, having been moved by stream flow from an original source such as a vein, are typically only a minuscule portion of the total deposit. Since gems and heavy metals like gold are considerably denser than sand, they tend to accumulate at the base of placer deposits. Placer deposits can be as young as a few years old, such as the Canadian Queen Charlotte beach gold placer deposits, or billions of years old like the Elliot Lake uranium paleoplacer within the Huronian Supergroup in Canada. The containing material in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ravine
A ravine is a landform that is narrower than a canyon and is often the product of streambank erosion.Definition of "ravine" at Ravines are typically classified as larger in scale than , although smaller than s. Ravines may also be called a cleuch, dell, ghout (), [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prospecting
Prospecting is the first stage of the geological analysis (followed by exploration) of a territory. It is the search for minerals, fossils, precious metals, or mineral specimens. It is also known as fossicking. Traditionally prospecting relied on direct observation of mineralization in rock outcrops or in sediments. Modern prospecting also includes the use of geologic, geophysical, and geochemical tools to search for anomalies which can narrow the search area. Once an anomaly has been identified and interpreted to be a potential prospect direct observation can then be focused on this area. In some areas a prospector must also make claims, meaning they must erect posts with the appropriate placards on all four corners of a desired land they wish to prospect and register this claim before they may take samples. In other areas publicly held lands are open to prospecting without staking a mining claim. Historical methods The traditional methods of prospecting involved combi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Georgia (U
Georgia most commonly refers to: * Georgia (country), a country in the Caucasus region of Eurasia * Georgia (U.S. state), a state in the Southeast United States Georgia may also refer to: Places Historical states and entities * Related to the country in the Caucasus ** Kingdom of Georgia, a medieval kingdom ** Georgia within the Russian Empire ** Democratic Republic of Georgia, established following the Russian Revolution ** Georgian Soviet Socialist Republic, a constituent of the Soviet Union * Related to the US state ** Province of Georgia, one of the thirteen American colonies established by Great Britain in what became the United States ** Georgia in the American Civil War, the State of Georgia within the Confederate States of America. Other places * 359 Georgia, an asteroid * New Georgia, Solomon Islands * South Georgia and the South Sandwich Islands Canada * Georgia Street, in Vancouver, British Columbia, Canada * Strait of Georgia, British Columbia, Canada United K ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ophir, California
Ophir (also, Spanish Corral and Ophirville) is an unincorporated community in Placer County, California. Ophir is located west of Auburn. It lies at an elevation of 682 feet (208 m). Ophir addresses have the ZIP code of 95658, a Newcastle address. History Ophir was a boomtown of the California Gold Rush. Originally named ''The Spanish Corral'' in 1849, Ophir received its Biblical name Ophir, the source of King Solomon's treasures, in 1850 because of the rich gold placer mining in the area. In 1852 it was the center of the local gold mining industry, and the most populous town in the county. It grew to over 500 families by 1853, when a disastrous fire on the 12th of July destroyed the whole town. The town was not rebuilt at the time. Later Ophir became the center of quartz mining in the county. It is remembered at California Historical Landmark #463. The Ophirville post office was open by 1852 and closed in 1866. The Ophir post office opened in 1872 and closed in 1910. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bedrock
In geology, bedrock is solid Rock (geology), rock that lies under loose material (regolith) within the crust (geology), crust of Earth or another terrestrial planet. Definition Bedrock is the solid rock that underlies looser surface material. An exposed portion of bedrock is often called an outcrop. The various kinds of broken and weathered rock material, such as soil and subsoil, that may overlie the bedrock are known as regolith. Engineering geology The surface of the bedrock beneath the soil cover (regolith) is also known as ''rockhead'' in engineering geology, and its identification by digging, drilling or geophysics, geophysical methods is an important task in most civil engineering projects. Superficial deposition (geology), deposits can be very thick, such that the bedrock lies hundreds of meters below the surface. Weathering of bedrock Exposed bedrock experiences weathering, which may be physical or chemical, and which alters the structure of the rock to leave ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quartz Vein
In geology, a vein is a distinct sheetlike body of crystallized minerals within a rock. Veins form when mineral constituents carried by an aqueous solution within the rock mass are deposited through precipitation. The hydraulic flow involved is usually due to hydrothermal circulation. Veins are classically thought of as being the ones in the body not the rock veins and arteries planar fractures in rocks, with the crystal growth occurring normal to the walls of the cavity, and the crystal protruding into open space. This certainly is the method for the formation of some veins. However, it is rare in geology for significant open space to remain open in large volumes of rock, especially several kilometers below the surface. Thus, there are two main mechanisms considered likely for the formation of veins: ''open-space filling'' and ''crack-seal growth''. Open space filling Open space filling is the hallmark of epithermal vein systems, such as a stockwork, in greisens or in c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Sovereign States
The following is a list providing an overview of sovereign states around the world with information on their status and recognition of their sovereignty. The 206 listed states can be divided into three categories based on membership within the United Nations System: 193 UN member states, 2 UN General Assembly non-member observer states, and 11 other states. The ''sovereignty dispute'' column indicates states having undisputed sovereignty (188 states, of which there are 187 UN member states and 1 UN General Assembly non-member observer state), states having disputed sovereignty (16 states, of which there are 6 UN member states, 1 UN General Assembly non-member observer state, and 9 de facto states), and states having a special political status (2 states, both in free association with New Zealand). Compiling a list such as this can be a complicated and controversial process, as there is no definition that is binding on all the members of the community of nations concerni ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
