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Colorado Mineral Belt
The Colorado Mineral Belt (CMB) is an area of ore deposits from the La Plata Mountains in Southwestern Colorado to near the middle of the state at Boulder, Colorado, and from which over 25 million troy ounces (778 t) of gold were extracted beginning in 1858. The belt is a "northeast-striking zone defined by: a Proterozoic shear zone system (McCoy, 2001); a suite of Laramide-aged plutons and related ore deposits ( Tweto and Sims, 1963); a major gravity low (Isaacson and Smithson, 1976); low- crustal velocities; and high heat flow (Decker et al., 1988)." Mining districts includ * Central City-Idaho Springs district * Leadville mining district, named for Leadville, Colorado * Sneffels-Red Mountain-Telluride district The belt lies within a zone that has been geologically active at intervals beginning from near the time of crustal accretion in central Colorado at least 1.6 billion years ago until the present. Parts of the CMB follow shear zones of Precambrian age and the Paleozoic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ore Deposit
Ore is natural rock or sediment that contains one or more valuable minerals, typically including metals, concentrated above background levels, and that is economically viable to mine and process. The grade of ore refers to the concentration of the desired material it contains. The value of the metals or minerals a rock contains must be weighed against the cost of extraction to determine whether it is of sufficiently high grade to be worth mining and is therefore considered an ore. A complex ore is one containing more than one valuable mineral. Minerals of interest are generally oxides, sulfides, silicates, or native metals such as copper or gold. Ore bodies are formed by a variety of geological processes generally referred to as ore genesis and can be classified based on their deposit type. Ore is extracted from the earth through mining and treated or refined, often via smelting, to extract the valuable metals or minerals. Some ores, depending on their composition, may pose ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Colorado Springs Metropolitan Area
The Colorado Springs, CO, Metropolitan Statistical Area is a United States Office of Management and Budget defined Metropolitan Statistical Area (MSA) located in the Colorado Springs region of the State of Colorado. The 2020 United States census counted a population of 755,105, an increase of 17.0% since the 2010 United States Census. The Colorado Springs MSA is the 79th-most populous MSA in the United States. The Colorado Springs MSA encompasses El Paso County and Teller County, Colorado. Approximately 88.40% percent of the MSA's population live in cities or CDPs. The Colorado Springs Metropolitan Statistical Area is the second-most populous component of the Front Range Urban Corridor. Metropolitan area cities and towns Unincorporated communities * Altman *Cascade * Crystola *Falcon * Rush * Truckton * Yoder See also * El Paso County, Colorado *Teller County, Colorado *List of statistical areas in Colorado * List of United States combined statistical areas *Li ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cripple Creek Gold Rush
The Cripple Creek Gold Rush was a period of gold production in the Cripple Creek area from the late 1800s until the early 1900s. Mining exchanges were in Cripple Creek, Colorado Springs, Pueblo and Victor. Smelting was in Gillett, Florence Florence ( ; ) is the capital city of the Italy, Italian region of Tuscany. It is also the most populated city in Tuscany, with 362,353 inhabitants, and 989,460 in Metropolitan City of Florence, its metropolitan province as of 2025. Florence ..., and (Old) Colorado City. Mining communities sprang up quickly, but most lasted only as long as gold continued to be produced. Settlements included: *Alta Vista - founded in 1894 three miles south of Victor, site of the narrow gauge classification yard, abandoned in 1912 with the closure of the Florence & Cripple Creek Railroad. * Altman - Founded in 1893 at 10,620 feet elevation between Bull Hill and Bull Cliff, near the Pharmacist, Deadwood, Zenobia, Burns, South Burns, Isabella, Buena Vis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Colorado Western Slope
The Western Slope is a colloquial term generally understood to describe the part of the state of Colorado west of the Continental Divide. Bodies of water west of the Divide flow toward the Pacific Ocean; water that falls and flows east of the Divide heads east toward the Gulf of Mexico. The Western Slope encompasses about 33% of the state, but has just 10% of the state's residents. The eastern part of the state, including the San Luis Valley and the Front Range, is the more populous portion of the state. Location The Western Slope, though without an official definition, generally is understood to include Delta, Dolores, Eagle, Garfield, Grand, Gunnison, Hinsdale, La Plata, Mesa, Moffat, Montezuma, Montrose, Ouray, Pitkin, Rio Blanco, Routt, San Juan, San Miguel, and Summit counties and portions of Archuleta, Mineral, and Saguache counties. The Western Slope has about 70% of the state's water. The Colorado River and its tributaries divide the region into north an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Timeline Of Mining In Colorado
Colorado mining history is a chronology of precious metal mining (e.g., mining for gold and silver), fuel extraction (e.g., mining for uranium and coal), building material quarrying (iron, gypsum, marble), and rare earth mining (titanium, tellurium). The Uravan Mineral Belt (UMB) is on the west side of the state, and the Colorado Mineral Belt (COMB) is a large area of the state that had gold/silver booms. Outside of the UMB & COMB, the Denver Basin produced small amounts of gold, and the Cripple Creek district had a different gold boom. Mining events Mining organizations See also * Coal mining in Colorado * Gold mining in Colorado * Silver mining in Colorado * Uranium mining in Colorado * pig mining in Colorado * purple mining in Colorado Notes References {{DEFAULTSORT:Mining in Colorado, Timeline of Mining Mining is the Resource extraction, extraction of valuable geological materials and minerals from the surface of the Earth. Mining is required to obtain ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Laramide Orogeny
The Laramide orogeny was a time period of mountain building in western North America, which started in the Late Cretaceous, 80 to 70 million years ago, and ended 55 to 35 million years ago. The exact duration and ages of beginning and end of the orogeny are in dispute. The Laramide orogeny occurred in a series of pulses, with quiescent phases intervening. The major feature that was created by this orogeny was deep-seated, thick-skinned deformation, with evidence of this orogeny found from Canada to northern Mexico, with the easternmost extent of the mountain-building represented by the Black Hills of South Dakota. The phenomenon is named for the Laramie Mountains of eastern Wyoming. The Laramide orogeny is sometimes confused with the Sevier orogeny, which partially overlapped in time and space. The orogeny is commonly attributed to events off the west coast of North America, where the Kula and Farallon Plates were sliding under the North American Plate. Most hypotheses propo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mesozoic
The Mesozoic Era is the Era (geology), era of Earth's Geologic time scale, geological history, lasting from about , comprising the Triassic, Jurassic and Cretaceous Period (geology), Periods. It is characterized by the dominance of archosaurian reptiles such as the dinosaurs, and of Gymnosperm, gymnosperms such as cycads, ginkgoaceae and Araucariaceae, araucarian conifers; a hot Greenhouse and icehouse earth, greenhouse climate; and the tectonic break-up of Pangaea. The Mesozoic is the middle of the three eras since Cambrian explosion, complex life evolved: the Paleozoic, the Mesozoic, and the Cenozoic. The era began in the wake of the Permian–Triassic extinction event, the largest mass extinction in Earth's history, and ended with the Cretaceous–Paleogene extinction event, another mass extinction whose victims included the non-avian dinosaurs, Pterosaur, pterosaurs, Mosasaur, mosasaurs, and Plesiosaur, plesiosaurs. The Mesozoic was a time of significant tectonic, climatic, an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paleozoic
The Paleozoic ( , , ; or Palaeozoic) Era is the first of three Era (geology), geological eras of the Phanerozoic Eon. Beginning 538.8 million years ago (Ma), it succeeds the Neoproterozoic (the last era of the Proterozoic Eon) and ends 251.9 Ma at the start of the Mesozoic Era. The Paleozoic is subdivided into six period (geology), geologic periods (from oldest to youngest), Cambrian, Ordovician, Silurian, Devonian, Carboniferous and Permian. Some geological timescales divide the Paleozoic informally into early and late sub-eras: the Early Paleozoic consisting of the Cambrian, Ordovician and Silurian; the Late Paleozoic consisting of the Devonian, Carboniferous and Permian. The name ''Paleozoic'' was first used by Adam Sedgwick (1785–1873) in 1838 to describe the Cambrian and Ordovician periods. It was redefined by John Phillips (geologist), John Phillips (1800–1874) in 1840 to cover the Cambrian to Permian periods. It is derived from the Ancient Greek, Greek ''palaiós'' (π� ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Precambrian
The Precambrian ( ; or pre-Cambrian, sometimes abbreviated pC, or Cryptozoic) is the earliest part of Earth's history, set before the current Phanerozoic Eon. The Precambrian is so named because it preceded the Cambrian, the first period of the Phanerozoic Eon, which is named after Cambria, the Latinized name for Wales, where rocks from this age were first studied. The Precambrian accounts for 88% of the Earth's geologic time. The Precambrian is an informal unit of geologic time, subdivided into three eons ( Hadean, Archean, Proterozoic) of the geologic time scale. It spans from the formation of Earth about 4.6 billion years ago ( Ga) to the beginning of the Cambrian Period, about million years ago ( Ma), when hard-shelled creatures first appeared in abundance. Overview Relatively little is known about the Precambrian, despite it making up roughly seven-eighths of the Earth's history, and what is known has largely been discovered from the 1960s onwards. The Precambrian ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leadville, Colorado
Leadville ( ) is a List of municipalities in Colorado#Statutory city, statutory city that is the county seat, the most populous community, and the only List of municipalities in Colorado, incorporated municipality in Lake County, Colorado, Lake County, Colorado, United States. The city population was 2,633 at the 2020 United States census. It is situated at an elevation of . Leadville is the highest United States Cities and Towns above 10,000 feet, incorporated city in the United States and is surrounded by two of the tallest Fourteener, peaks in the state, Mount Elbert and Mount Massive. Leadville is a former silver mining town that lies among the headwaters of the Arkansas River within the Rocky Mountains. The Leadville Historic District, designated a National Historic Landmark in 1961, contains many historic structures and sites of Leadville's mining era. In the late 19th century, Leadville was the second most populous city in Colorado, after Denver. History Settlement T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
La Plata Mountains
The La Plata Mountains are a small subrange of the San Juan Mountains in the southwestern part of Colorado, United States. They are located on the border between Montezuma and La Plata counties, about northwest of Durango. Their name is Spanish for ''silver''. The peaks of the range are easily visible from U.S. Route 160, which skirts the range on the south. The La Plata River and the Mancos River have their headwaters in the range. The Colorado Trail accesses even towards the northern peaks. The best-known and highest peak in the La Plata Mountains is Hesperus Mountain, which is the Navajo sacred mountain of the north. The seven highest summits are listed below. Seven highest peaks * Hesperus Mountain, * Lavender Peak, * Mount Moss, * Babcock Peak, * Spiller Peak, * Centennial Peak, * Diorite Peak, See also *Mountain ranges of Colorado All the major mountain ranges in the state of Colorado, United States, are considered subranges of the Southern Roc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
