|
Wicklow Gold Rush
The Wicklow gold rush, or the Avoca gold rush, was a gold rush that began on 15 September 1795, following the discovery of gold on the northern slopes of Croghan Kinsella mountain, County Wicklow, Ireland. The unregulated period of gold collection ended with a military takeover exactly one month later, on 15 October 1795. Over the four week period, as much as 80 kilograms of gold was recovered by prospectors. It was the only recorded gold rush to have occurred on the island of Ireland. History Background Ireland was the major area of gold working in the Bronze Age British Isles, gold working in Bronze Age Britain and Ireland, with Irish gold being especially well known from the Bronze Age as jewellery in the form of gold lunulae, torcs, gorgets and rings. The first gold produced in Ireland occurred c. 2500 BC during the late Neolithic/Atlantic Bronze Age, with a likely source for it having been placer mining in Ireland's rivers, including the rivers of County Wicklow and the " ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neolithic
The Neolithic period, or New Stone Age, is an Old World archaeological period and the final division of the Stone Age. It saw the Neolithic Revolution, a wide-ranging set of developments that appear to have arisen independently in several parts of the world. This "Neolithic package" included the introduction of farming, domestication of animals, and change from a hunter-gatherer lifestyle to one of settlement. It began about 12,000 years ago when farming appeared in the Epipalaeolithic Near East, and later in other parts of the world. The Neolithic lasted in the Near East until the transitional period of the Chalcolithic (Copper Age) from about 6,500 years ago (4500 BC), marked by the development of metallurgy, leading up to the Bronze Age and Iron Age. In other places the Neolithic followed the Mesolithic (Middle Stone Age) and then lasted until later. In Ancient Egypt, the Neolithic lasted until the Protodynastic period, 3150 BC.Karin Sowada and Peter Grave. Egypt in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gold Nugget
:''"Gold nugget" may also refer to the catfish Baryancistrus xanthellus or the mango cultivar Gold Nugget.'' A gold nugget is a naturally occurring piece of native gold. Watercourses often concentrate nuggets and finer gold in placers. Nuggets are recovered by placer mining, but they are also found in residual deposits where the gold-bearing veins or lodes are weathered. Nuggets are also found in the tailings piles of previous mining operations, especially those left by gold mining dredges. Formation Nuggets are gold fragments weathered out of an original lode. They often show signs of abrasive polishing by stream action, and sometimes still contain inclusions of quartz or other lode matrix material. A 2007 study on Australian nuggets ruled out speculative theories of supergene formation via in-situ precipitation, cold welding of smaller particles, or bacterial concentration, since crystal structures of all of the nuggets examined proved they were originally formed at hi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gold Panning
Gold panning, or simply ''panning'', is a form of placer mining and traditional mining that extracts gold from a placer deposit using a pan. The process is one of the simplest ways to extract gold, and is popular with geology enthusiasts especially because of its low cost and relative simplicity. The first recorded instances of placer mining are from ancient Rome, where gold and other precious metals were extracted from streams and mountainsides using sluices and panning. However, the productivity rate is comparatively smaller compared to other methods such as the rocker box or large extractors, such as those used at the Super Pit gold mine, in Kalgoorlie, Western Australia, which has led to panning being largely replaced in the commercial market. Process Gold panning is a simple process. Once a suitable placer deposit is located, some alluvial deposits are scooped into a pan, where they are then wetted and loosed from attached soils by soaking, fingering, and aggressiv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Irish Gold At The National Museum Of Ireland – Archaeology, Dublin 02
Irish may refer to: Common meanings * Someone or something of, from, or related to: ** Ireland, an island situated off the north-western coast of continental Europe ***Éire, Irish language name for the isle ** Northern Ireland, a constituent unit of the United Kingdom of Great Britain and Northern Ireland ** Republic of Ireland, a sovereign state * Irish language, a Celtic Goidelic language of the Indo-European language family spoken in Ireland * Irish people, people of Irish ethnicity, people born in Ireland and people who hold Irish citizenship Places * Irish Creek (Kansas), a stream in Kansas * Irish Creek (South Dakota), a stream in South Dakota * Irish Lake, Watonwan County, Minnesota * Irish Sea, the body of water which separates the islands of Ireland and Great Britain People * Irish (surname), a list of people * William Irish, pseudonym of American writer Cornell Woolrich (1903–1968) * Irish Bob Murphy, Irish-American boxer Edwin Lee Conarty (1922–1961) * Irish McCal ... [...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 ce ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sulphur
Sulfur (or sulphur in British English) is a chemical element with the symbol S and atomic number 16. It is abundant, multivalent and nonmetallic. Under normal conditions, sulfur atoms form cyclic octatomic molecules with a chemical formula S8. Elemental sulfur is a bright yellow, crystalline solid at room temperature. Sulfur is the tenth most abundant element by mass in the universe and the fifth most on Earth. Though sometimes found in pure, native form, sulfur on Earth usually occurs as sulfide and sulfate minerals. Being abundant in native form, sulfur was known in ancient times, being mentioned for its uses in ancient India, ancient Greece, China, and ancient Egypt. Historically and in literature sulfur is also called brimstone, which means "burning stone". Today, almost all elemental sulfur is produced as a byproduct of removing sulfur-containing contaminants from natural gas and petroleum.. Downloahere The greatest commercial use of the element is the production of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Copper Extraction
Copper extraction refers to the methods used to obtain copper from its ores. The conversion of copper consists of a series of physical and electrochemical processes. Methods have evolved and vary with country depending on the ore source, local environmental regulations, and other factors. As in all mining operations, the ore must usually be beneficiated (concentrated). The processing techniques depend on the nature of the ore. If the ore is primarily sulfide copper minerals (such as chalcopyrite), the ore is crushed and ground to liberate the valuable minerals from the waste (' gangue') minerals. It is then concentrated using mineral flotation. The concentrate is typically sold to distant smelters, although some large mines have smelters located nearby. Such colocation of mines and smelters was more typical in the 19th and early 20th centuries, when smaller smelters could be economic. The sulfide concentrates are typically smelted in such furnaces as the Outokumpu or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Avoca, County Wicklow
Avoca () is a small town near Arklow, in County Wicklow, Ireland. It is situated on the River Avoca. The Avoca area has been associated with its copper mines for many years and the valley has been celebrated by Thomas Moore in the song " The Meeting of the Waters". The name of the song derives from the meeting of the Avonmore and Avonbeg rivers, about 3 kilometres from the village of Avoca. The song is said to have been written under a tree, the stump of which remains by the Meetings. Avoca is also famous for its handweaving, with Avoca Handweavers based there. Avoca has been used as a filming location for several films and television series. The BBC series ''Ballykissangel'' was filmed there. In 1967, Avoca was one of the locations used in the film '' Jules Verne's Rocket to the Moon'', and it was the setting for the comedy film '' Zonad'' which had a general Irish release in 2010. The red kite, recently reintroduced to Ireland, is now commonly seen in and around Avoca. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alluvial Deposit
Alluvium (from Latin ''alluvius'', from ''alluere'' 'to wash against') is loose clay, silt, sand, or gravel that has been deposited by running water in a stream bed, on a floodplain, in an alluvial fan or beach, or in similar settings. Alluvium is also sometimes called alluvial deposit. Alluvium is typically geologically young and is not consolidated into solid rock. Sediments deposited underwater, in seas, estuaries, lakes, or ponds, are not described as alluvium. Floodplain alluvium can be highly fertile, and supported some of the earliest human civilizations. Definitions The present consensus is that "alluvium" refers to loose sediments of all types deposited by running water in floodplains or in alluvial fans or related landforms. However, the meaning of the term has varied considerably since it was first defined in the French dictionary of Antoine Furetière, posthumously published in 1690. Drawing upon concepts from Roman law, Furetière defined ''alluvion'' (the Fre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
County Tyrone
County Tyrone (; ) is one of the six counties of Northern Ireland, one of the nine counties of Ulster and one of the thirty-two traditional counties of Ireland. It is no longer used as an administrative division for local government but retains a strong identity in popular culture. Adjoined to the south-west shore of Lough Neagh, the county covers an area of and has a population of about 177,986; its county town is Omagh. The county derives its name and general geographic location from Tír Eoghain, a Gaelic kingdom under the O'Neill dynasty which existed until the 17th century. Name The name ''Tyrone'' is derived , the name given to the conquests made by the Cenél nEógain from the provinces of Airgíalla and Ulaid.Art Cosgrove (2008); "A New History of Ireland, Volume II: Medieval Ireland 1169-1534". Oxford University Press. Historically, it was anglicised as ''Tirowen'' or ''Tyrowen'', which are closer to the Irish pronunciation. History Historically Tyrone (then ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Museum Of Ireland
The National Museum of Ireland ( ga, Ard-Mhúsaem na hÉireann) is Ireland's leading museum institution, with a strong emphasis on national and some international archaeology, Irish history, Irish art, culture, and natural history. It has three branches in Dublin, the archaeology and natural history museums adjacent on Kildare Street and Merrion Square, and a newer Decorative Arts and History branch at the former Collins Barracks, and the Country Life museum in County Mayo. History Predecessors The National Museum of Ireland descends from the amalgamation of parts of the collections of a number of Dublin cultural institutions from the 18th and 19th centuries, including primarily the Royal Dublin Society (RDS) and the Royal Irish Academy (RIA). The earliest parts of the collections are largely geological and mineralogical specimens, which the RDS collected as a means to improve the knowledge and use of such resources in Ireland. The establishment of the museum collection ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
