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Mule Mountains
The Mule Mountains are a north/south running mountain range located in the south-central area of Cochise County, Arizona. The highest peak, Mount Ballard, rises to . Prior to mining operations commencing there, the mountains were heavily forested with large Rocky Mountain Douglas-fir (''Pseudotsuga menziesii glauca'') and other conifers, but these were all cut down for housing needs and to feed the ore smelting furnaces in Douglas, Arizona, approximately 20 miles due east. Now, the primary vegetation of the Mules consists of manzanita (''Arctostaphylos'' spp.) brush, juniper, lowland oaks and pines, and various grasses. To the east of the mountain range lies Sulphur Springs Valley, and the San Pedro River and Valley to the west. The terrain is very rough, with very steep slopes descending into deep canyons. Common wildlife species include desert mule deer (''Odocoileus hemionus eremicus''), Coues' White-tailed deer (''O. virginianus couesi''), Collared Peccary (''Pecari ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hereford, Arizona
Hereford is a populated place in Cochise County along the San Pedro Riparian National Conservation Area in the southern part of the U.S. state of Arizona. It is southeast of Sierra Vista and is a part of the Sierra Vista-Douglas micropolitan area. The elevation is 4,193 feet at the location of the original townsite at the far eastern end of the unincorporated area; the residential area runs for another 8 miles west from this location, blending into the unincorporated area of Nicksville at an elevation of approximately 4800'. Hereford Station Post Office is located at the far western end of Nicksville, at the foot of the Huachuca Mountains.''Cochise County'', Dex: Official Directory, CenturyLink, 2014, pg 1 History Founded in 1878, the community was named after Frank Hereford, who was a friend of the town's founder, and a distinguished local attorney. It was where cowboys Frank McLaury and Tom McLaury first met and became associated with Ike Clanton, in 1878. The two brothers w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
White-tailed Deer
The white-tailed deer (''Odocoileus virginianus''), also known as the whitetail or Virginia deer, is a medium-sized deer native to North America, Central America, and South America as far south as Peru and Bolivia. It has also been introduced to New Zealand, all the Greater Antilles in the Caribbean (Cuba, Jamaica Jamaica (; ) is an island country situated in the Caribbean Sea. Spanning in area, it is the third-largest island of the Greater Antilles and the Caribbean (after Cuba and Hispaniola). Jamaica lies about south of Cuba, and west of His ..., Hispaniola, and Puerto Rico), and some countries in Europe, such as the Czech Republic, Finland, France, Germany, Romania and Serbia. In the Americas, it is the most widely distributed wild ungulate. In North America, the species is widely distributed east of the Rocky Mountains as well as in southwestern Arizona and most of Mexico, except Baja California peninsula, Lower California. It is mostly displaced by the black ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bisbee Blue
275px, Bisbee turquoise commonly has a hard chocolate brown colored matrix. Bisbee Blue or Bisbee turquoise refers to the turquoise that comes from copper mines located in the vicinity of Bisbee, Arizona. Bisbee turquoise can be found in many different shades of color and quality, from soft, low quality pale blue, to the quality hard brilliant blue turquoise and almost every shade of blue in between. The highest grade of Bisbee Blue turquoise is almost lapis lazuli blue and has a brownish-red spiderweb matrix. Green turquoise is also found in Bisbee. History Discovery Though small amounts of turquoise were found in the Campbell shaft mine, as well as in stream beds in the Mule Mountains, the vast majority of Bisbee turquoise surfaced when the Phelps Dodge Corporation started open pit mining operations at the location now known as the Lavender Pit, especially the eastern side of the pit. Large amounts of a conglomerate rock bed needed to be removed before the copper ore locate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Turquoise
Turquoise is an opaque, blue-to-green mineral that is a hydrated phosphate of copper and aluminium, with the chemical formula . It is rare and valuable in finer grades and has been prized as a gemstone and ornamental stone for thousands of years owing to its unique hue. Like most other opaque gems, turquoise has been devalued by the introduction of treatments, imitations and synthetics into the market. The robin's egg blue or sky blue color of the Persian turquoise mined near the modern city of Nishapur in Iran has been used as a guiding reference for evaluating turquoise quality. Names The word ''turquoise'' dates to the 17th century and is derived from the French ''turquois'' meaning "Turkish" because the mineral was first brought to Europe through the Ottoman Empire.Turquoise . minerals.usgs.gov Howe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lead
Lead is a chemical element with the symbol Pb (from the Latin ) and atomic number 82. It is a heavy metal that is denser than most common materials. Lead is soft and malleable, and also has a relatively low melting point. When freshly cut, lead is a shiny gray with a hint of blue. It tarnishes to a dull gray color when exposed to air. Lead has the highest atomic number of any stable element and three of its isotopes are endpoints of major nuclear decay chains of heavier elements. Lead is toxic, even in small amounts, especially to children. Lead is a relatively unreactive post-transition metal. Its weak metallic character is illustrated by its amphoteric nature; lead and lead oxides react with acids and bases, and it tends to form covalent bonds. Compounds of lead are usually found in the +2 oxidation state rather than the +4 state common with lighter members of the carbon group. Exceptions are mostly limited to organolead compounds. Like the lighter members of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Silver
Silver is a chemical element with the Symbol (chemistry), symbol Ag (from the Latin ', derived from the Proto-Indo-European wikt:Reconstruction:Proto-Indo-European/h₂erǵ-, ''h₂erǵ'': "shiny" or "white") and atomic number 47. A soft, white, lustrous transition metal, it exhibits the highest electrical conductivity, thermal conductivity, and reflectivity of any metal. The metal is found in the Earth's crust in the pure, free elemental form ("native silver"), as an alloy with gold and other metals, and in minerals such as argentite and chlorargyrite. Most silver is produced as a byproduct of copper, gold, lead, and zinc Refining (metallurgy), refining. Silver has long been valued as a precious metal. Silver metal is used in many bullion coins, sometimes bimetallism, alongside gold: while it is more abundant than gold, it is much less abundant as a native metal. Its purity is typically measured on a per-mille basis; a 94%-pure alloy is described as "0.940 fine". As one of th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gold
Gold is a chemical element with the symbol Au (from la, aurum) and atomic number 79. This makes it one of the higher atomic number elements that occur naturally. It is a bright, slightly orange-yellow, dense, soft, malleable, and ductile metal in a pure form. Chemically, gold is a transition metal and a group 11 element. It is one of the least reactive chemical elements and is solid under standard conditions. Gold often occurs in free elemental ( native state), as nuggets or grains, in rocks, veins, and alluvial deposits. It occurs in a solid solution series with the native element silver (as electrum), naturally alloyed with other metals like copper and palladium, and mineral inclusions such as within pyrite. Less commonly, it occurs in minerals as gold compounds, often with tellurium (gold tellurides). Gold is resistant to most acids, though it does dissolve in aqua regia (a mixture of nitric acid and hydrochloric acid), forming a soluble tetrachloroaurate anion. Gold is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phelps Dodge Corporation
Phelps Dodge Corporation was an American mining company founded in 1834 as an import-export firm by Anson Greene Phelps and his two sons-in-law William Earle Dodge, Sr. and Daniel James. The latter two ran Phelps, James & Co., the part of the organization based in Liverpool, England. The import-export firm at first exported United States cotton from the Deep South to England and imported various metals to the US needed for industrialization. With the expansion of the Western frontier in North America, the corporation acquired mines and mining companies, including the Copper Queen Mine in Cochise County, Arizona and the Dawson, New Mexico coal mines. It operated its own mines and acquired railroads to carry its products. By the late 19th century, it was known as a mining company. On March 19, 2007, Freeport-McMoRan completed a $25.9 billion acquisition of Phelps Dodge Corporation. History in 1821, Anson G. Phelps started a partnership in New York City with Elisha Peck, a merc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Copper
Copper is a chemical element with the symbol Cu (from la, cuprum) and atomic number 29. It is a soft, malleable, and ductile metal with very high thermal and electrical conductivity. A freshly exposed surface of pure copper has a pinkish-orange color. Copper is used as a conductor of heat and electricity, as a building material, and as a constituent of various metal alloys, such as sterling silver used in jewelry, cupronickel used to make marine hardware and coins, and constantan used in strain gauges and thermocouples for temperature measurement. Copper is one of the few metals that can occur in nature in a directly usable metallic form ( native metals). This led to very early human use in several regions, from circa 8000 BC. Thousands of years later, it was the first metal to be smelted from sulfide ores, circa 5000 BC; the first metal to be cast into a shape in a mold, c. 4000 BC; and the first metal to be purposely alloyed with another metal, tin, to create ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Open-pit Mining
Open-pit mining, also known as open-cast or open-cut mining and in larger contexts mega-mining, is a surface mining technique of extracting rock or minerals from the earth from an open-air pit, sometimes known as a borrow. This form of mining differs from extractive methods that require tunnelling into the earth, such as long wall mining. Open-pit mines are used when deposits of commercially useful ore or rocks are found near the surface. It is applied to ore or rocks found at the surface because the overburden is relatively thin or the material of interest is structurally unsuitable for tunnelling (as would be the case for cinder, sand, and gravel). In contrast, minerals that have been found underground but are difficult to retrieve due to hard rock, can be reached using a form of underground mining. To create an open-pit mine, the miners must determine the information of the ore that is underground. This is done through drilling of probe holes in the ground, then plotting ea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lavender Pit
The Lavender Pit is a former open pit copper mine near Bisbee in Cochise County, Arizona, United States. It is located near the famous Copper Queen Mine. The Lavender Pit was named in honor of Harrison M. Lavender (1890–1952), who as Vice-President and General Manager of Phelps Dodge Corporation, conceived and carried out this plan for making the previously unprofitable low-grade copper bearing rock of the area into commercial copper ore. Phelps Dodge Corporation opened the Lavender Pit in 1950, at the site of the earlier, higher-grade Sacramento Hill mine. Production through 1974 totaled 86 million tons of ore averaging about 0.7% copper, or about 600,000 tons of copper produced, with gold and silver as byproducts. About 256 million tons of waste were stripped, but a portion of this was acid-leached for additional copper. Turquoise was also a by-product of this mining activity. Bisbee turquoise, also known as Bisbee Blue, is amongst the finest turquoise found anywhere in th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fossil
A fossil (from Classical Latin , ) is any preserved remains, impression, or trace of any once-living thing from a past geological age. Examples include bones, shells, exoskeletons, stone imprints of animals or microbes, objects preserved in amber, hair, petrified wood and DNA remnants. The totality of fossils is known as the ''fossil record''. Paleontology is the study of fossils: their age, method of formation, and evolutionary significance. Specimens are usually considered to be fossils if they are over 10,000 years old. The oldest fossils are around 3.48 billion years old to 4.1 billion years old. Early edition, published online before print. The observation in the 19th century that certain fossils were associated with certain rock strata led to the recognition of a geological timescale and the relative ages of different fossils. The development of radiometric dating techniques in the early 20th century allowed scientists to quantitatively measure the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
