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Diamond Drilling
Exploration diamond drilling is used in the mining industry to probe the contents of known ore deposits and potential sites. By withdrawing a small diameter core of rock from the orebody, geologists can analyze the core by Metallurgical assay, chemical assay and conduct petrology, petrologic, structural, and mineralogy, mineralogical studies of the rock. It is also often used in the geotechnical engineering industry for foundation testing in conjunction with soil sampling methods. The technique is named for the diamond encrusted drill bit used. History Rodolphe Leschot is often cited as being the inventor of the first core bit in 1863. Early diamond drilling opened up many new areas for mineral mining, and was related to a boom in mineral exploration in remote locations. Before the invention of the portable diamond drill, most mineral prospecting was limited to finding outcrops at the surface and hand digging. In the late 1970s, General Electric pioneered the technology of polycr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Layne Rig57
Layne is both a surname and a given name. Notable people with the name include: Surname: * Alfredo Layne (1959–1999), Panamanian boxer * Aubrey Layne (born 1956), American businessman and politician * Barry Layne (born 1965), American racing driver * Bobby Layne (1926–1986), American football player * Christopher Layne (born 1949), American political scientist and academic * Chyna Layne, American actress * Cynthia Layne (1963–2015), American singer * David Layne (born 1939), English footballer * Dawn-Marie Layne (born 1988), Barbadian cricketer * Floyd Layne (1929–2024), American basketball player and coach * George Layne (born 1978), American football player * Griffin Layne, American singer-songwriter * Herman Layne (1901–1973), American baseball player * Hillis Layne (1918–2010), American baseball player * Isaac Layne (born 1995), English footballer * Jerry Layne (born 1958), American baseball umpire * Jerry Layne (ventriloquist) (1938–2018), American ventriloquist * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reverse Circulation Drilling
A core sample is a cylindrical section of (usually) a naturally-occurring substance. Most core samples are obtained by drilling with special drills into the substance, such as sediment or rock, with a hollow steel tube, called a core drill. The hole made for the core sample is called the "core hole". A variety of core samplers exist to sample different media under different conditions; there is continuing development in the technology. In the coring process, the sample is pushed more or less intact into the tube. Removed from the tube in the laboratory, it is inspected and analyzed by different techniques and equipment depending on the type of data desired. Core samples can be taken to test the properties of manmade materials, such as concrete, ceramics, some metals and alloys, especially the softer ones. Core samples can also be taken of living things, including human beings, especially of a person's bones for microscopic examination to help diagnose diseases. Methods The c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diamond Core
Diamond is a Allotropes of carbon, solid form of the element carbon with its atoms arranged in a crystal structure called diamond cubic. Diamond is tasteless, odourless, strong, brittle solid, colourless in pure form, a poor conductor of electricity, and insoluble in water. Another solid form of carbon known as graphite is the Chemical stability, chemically stable form of carbon at Standard temperature and pressure, room temperature and pressure, but diamond is metastable and converts to it at a negligible rate under those conditions. Diamond has the highest Scratch hardness, hardness and thermal conductivity of any natural material, properties that are used in major industrial applications such as cutting and polishing tools. Because the arrangement of atoms in diamond is extremely rigid, few types of impurity can contaminate it (two exceptions are boron and nitrogen). Small numbers of lattice defect, defects or impurities (about one per million of lattice atoms) can color ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
San Andreas Fault
The San Andreas Fault is a continental Fault (geology)#Strike-slip faults, right-lateral strike-slip transform fault that extends roughly through the U.S. state of California. It forms part of the tectonics, tectonic boundary between the Pacific plate and the North American plate. Traditionally, for scientific purposes, the fault has been classified into three main segments (northern, central, and southern), each with different characteristics and a different degree of earthquake risk. The average slip rate along the entire fault ranges from per year. In the north, the fault terminates offshore near Eureka, California, at the Mendocino triple junction, where three tectonic plates meet. The Cascadia subduction zone intersects the San Andreas fault at the Mendocino triple junction. It has been hypothesized that a major earthquake along the Cascadia subduction zone could trigger a rupture along the San Andreas Fault. In the south, the fault terminates near Bombay Beach, Califor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
North Bay, Ontario
North Bay is a city in Northeastern Ontario, Canada. It is the seat of Nipissing District and takes its name from its position on the shore of Lake Nipissing. It developed as a railroad centre and its airport was an important military location during the Cold War. History The site of North Bay is part of a historic canoe route where Samuel de Champlain took a party up the Ottawa River, through present-day Mattawa, on to Trout Lake and via the La Vase Creek to Lake Nipissing. Apart from Indigenous people, voyageurs and surveyors, there was little activity in the Lake Nipissing area until the arrival of the Canadian Pacific Railway (CPR) in 1882. That was the point where the Canada Central Railway (CCR) extension ended. The CCR was owned by Duncan McIntyre who amalgamated it with the CPR and became one of the handful of officers of the newly formed CPR. The CCR started in Brockville and extended to Pembroke. It then followed a westward route along the Ottawa River pas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tempe, Arizona
Tempe ( ; ''Oidbaḍ'' in O'odham language, O'odham) is a city in Maricopa County, Arizona, United States, with the Census Bureau reporting a 2020 population of 180,587. The city is named after the Vale of Tempe in Greece. Tempe is located in the East Valley (Phoenix metropolitan area), East Valley section of Phoenix metropolitan area, metropolitan Phoenix; it is bordered by Phoenix, Arizona, Phoenix and Guadalupe, Arizona, Guadalupe on the west, Scottsdale, Arizona, Scottsdale and the Salt River Pima–Maricopa Indian Community on the north, Chandler, Arizona, Chandler on the south, and Mesa, Arizona, Mesa on the east. Tempe is the location of the main campus of Arizona State University. History The Hohokam lived in this area and built canals to support their agriculture. They abandoned their settlements during the 15th century, with a few individuals and families remaining nearby. Fort McDowell, Arizona, Fort McDowell was established approximately northeast of present dow ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hard Rock Miner's Handbook
The ''Hard Rock Miner's Handbook'' is a reference book that deals with the underground hard-rock mining industry. It was written by engineer Jack de la Vergne as a non-profit publication. The first edition was published in 2000 by McIntosh Engineering, a mining engineering consulting company. It is currently in its third printing, is used by thousands of people in the mining industry, including students, professors, miners, engineers and mining executives as a source of practical mining information, as well as "Rules of Thumb In English, the phrase ''rule of thumb'' refers to an approximate method for doing something, based on practical experience rather than theory. This usage of the phrase can be traced back to the 17th century and has been associated with various ..." and "Tricks of the trade" are used widely in the mining industry. Copies of the handbook have been distributed to more than 113 countries around the world. References {{Reflist Works about mining Handbook ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geologists
A geologist is a scientist who studies the structure, composition, and history of Earth. Geologists incorporate techniques from physics, chemistry, biology, mathematics, and geography to perform research in the field and the laboratory. Geologists work in the energy and mining sectors to exploit natural resources. They monitor environmental hazards such as earthquakes, volcanoes, tsunamis and landslides. Geologists are also important contributors to climate change discussions. History James Hutton is often viewed as the first modern geologist. In 1785 he presented a paper entitled ''Theory of the Earth'' to the Royal Society of Edinburgh. In his paper, he explained his theory that the Earth must be much older than had previously been supposed to allow enough time for mountains to be eroded and for sediments to form new rocks at the bottom of the sea, which in turn were raised up to become dry land. Hutton published a two-volume version of his ideas in 1795Vol. 1 [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Atlas Copco Core Bits
An atlas is a collection of maps; it is typically a bundle of maps of Earth or of a continent or region of Earth. Advances in astronomy have also resulted in atlases of the celestial sphere or of other planets. Atlases have traditionally been bound into book form, but today, many atlases are in multimedia formats. In addition to presenting geographical features and political boundaries, many atlases often feature geopolitical, social, religious, and economic statistics. They also have information about the map and places in it. Etymology The use of the word "atlas" in a geographical context dates from 1595 when the German-Flemish geographer Gerardus Mercator published ("Atlas or cosmographical meditations upon the creation of the universe and the universe as created"). This title provides Mercator's definition of the word as a description of the creation and form of the whole universe, not simply as a collection of maps. The volume that was published posthumously one year af ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Drill Bit
A drill bit is a cutting tool used in a drill to remove material to create holes, almost always of circular cross-section. Drill bits come in many sizes and shapes and can create different kinds of holes in many different materials. In order to create holes drill bits are usually attached to a drill, which powers them to cut through the workpiece, typically by rotation. The drill will grasp the upper end of a bit called the ''shank'' in the chuck. Drills come in standardized drill bit sizes. A comprehensive drill bit and tap size chart lists metric and imperial sized drills alongside the required screw tap sizes. There are also certain specialized drill bits that can create holes with a non-circular cross-section. Characteristics Drill geometry has several characteristics: * The spiral (or rate of twist) in the drill bit controls the rate of chip removal. A fast spiral (high twist rate or "compact flute") drill bit is used in high feed rate applications under low ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
