This interactive virtual tour for younger students lets them 'drive' a quarry truck and visit a rock quarry to see how the rock is mined, processed and transported, and what the aggregate is used for. The tour includes safety tips for visiting quarries. They can also 'restore' an abandoned ...

... Association of Ontario (APAO). MAAP focuses on the rehabilitation and research of aggregate properties that were abandoned ... ...

Observations of blasting practices at three stone quarries in West Germany are reported. Two are limestone quarries whose products are used in producing steel and cement; the other is a Melaphr Latit Andesite whose products are used in road and building c...

New equipment and construction techniques are being developed and incorporated by industry to quarry and produce aggregates and for the mixing and construction of asphalt concrete pavements. This report is a presentation of those developments and the pert...

Active and abandoned mines, quarries, and tunnels have claimed the lives of many adults and children over the years. These sites pose potential life-threatening dangers for anyone who ventures near them. People enter abandoned mines and active mine sites ...

... open space land adjacent to the quarry. The process involved collaborative efforts by all stakeholders and resulted in an outcome that balances the needs of society, the environment, and business....

... Database of articles on military and naval science, operational warfare, joint ... SA 14 is an abandoned and flooded slate quarry approximately 1 acre ...

... Plan, February 2010, v1.1 28 Mining and Quarrying Mountain Plovers are thought to abandon breeding sites ... ...

Laboratory tests were conducted on aggregate and rock samples from quarries which had provided aggregate for test pavements. Aggregate extracted from bituminous cores were also tested. The tests included the determination of acid insoluble residue content...

Approximately 740 000 tons of eastern bituminous coal fly ash were deposited at the abandoned Zullinger limestone quarry from 1973-1980. The quarry extended below the water table and was not lined to isolate the ash from the aquifer. Long-term groundwater pollution has apparently not resulted.

The purpose of the study was to determine relevant properties of materials present in locally available sources of concrete aggregate and riprap for use in the subject project. Crushed stone from four quarries was tested for use as both concrete aggregate...

... as follows: a. Gibbar guarry No. 4 Stace: Missouri Latitude: 370 ... b. West Lake Quarry No. 5 State: Missouri Latitude: 380 Longitude: 900 I ...

Technology and economy of a cold district heating project is discussed in this report. Two small fuel oil fired heating centrals have been supplied with heat pumps extracting heat from water pumped from an abandoned quarry 1 km from the heating centrals. ...

... are listed on the herbarium specimen labels. EquisetophytaEquisetaceae � Equisetum arvense L. 3; F. 94-203� Equisetum hyemale L. 3; F. 97-555PolypodiophytaAspleniaceae Asplenium platyneuron...

Over the last two decades there has been a noticeable increase in the activities of quarry-mining companies in the Ishiagu area of south-eastern Nigeria. These activities have produced an ever-growing number of abandoned quarry pits that usually quickly fill with water and appear to become suitable habitats for the freshwater snails ...

Water logged abandoned mines have an impact on the environment. In this project we selected abandoned mines from two sets of different ore bodies to learn about their environmental impact. Franklin and Sterling Pb-Zn mines, NJ and the limestone quarry in Rondout formation, NY were selected as case study examples. In the Pb-Zn mines ...

...holding period, and abandonment losses where mineral interests have been aggregated or combined...holding period, and abandonment losses where mineral interests have been aggregated or combined...of the unadjusted bases of the various mineral interests aggregated. The...

The 4-acre Tyson Dump No. 1 site is an abandoned septic and chemical waste disposal area in Upper Merion Township, Montgomery County, Pennsylvania. The site consists of a series of abandoned unlined lagoons in a former sandstone quarry, and is bordered by...

Sinkholes are extremely widespread in Apulia, a very flat and carbonate region, that acted as the foreland during the phases of building up of the Southern Apenninic Chain in Miocene time. This is due to the presence of soluble rocks throughout the region, that highly predispose the area to this very subtle natural hazard. In addition to the natural setting, which favours their development, ...

Active quarries near to urban centers are at the same time a necessity but also a source of pollution. Necessity as they supply to the construction companies the necessary aggregates and source of pollution as they affect biodiversity, vegetation cover and threaten water resources. The objective of this work is to indicate a monitoring methodology in order ...

Unbound aggregate base layers in a quarry haul road in Georgia were characterized using embedded sensors and in-situ seismic testing. Two sections of the road were constructed as inverted pavements, one using a South African Roads Board method and the oth...

During the rainy season deterioration in the quality of water, supplied through dug wells and tube wells, near an abandoned limestone quarry was reported. The abandoned quarry is now being used as an urban waste disposal site. The problem was further complicated by hospitalization of several inhabitants who were ...

Carbonate rocks ranging in age from Pennsylvanian through Ordovician provide the principal resources for crushed stone production in Illinois. In the northern third of Illinois, dolomite and calcareous dolomite of the Silurian and Ordovician Systems from the bedrock surface are the basis of a large quarrying industry. One of the largest quarries in the ...

For many years the marble extraction sector of the Greek mining industry has been in conflict with the public, especially in terms of rehabilitation of marble quarry sites. One of the main reasons for that is that the marble extraction sector has been unable to adjust to the existing legislative guidelines for the rehabilitation, such as extensive backfilling and ...

Ground-water-level measurements to support remedial actions were made in 37 piezometers and 19 monitoring wells during a 19-month period to assess the potential for ground-water flow from an abandoned quarry to the nearby St. Charles County well field, which withdraws water from the base of the alluvial aquifer. From 1957 to 1966, low-level radioactive ...

Historical records were used for the compilation of a database of sinkholes resulted from collapses of abandoned shallow underground limestone quarries (mines) in two villages in Belgian South Limburg. During the last 350 years the formation of such sinkholes caused at least 38 casualties, but more often it caused a change in topography and damage to ...

Many countries, provinces, territories, or states in the European Union, Australia, Canada, the United States, and elsewhere have begun implementing sustainability programs, but most of those programs stop short of sustainable management of aggregate resources. Sustainable practices do not always have to be conducted under the title of sustainability. This case study describes ...

Brownfields are abandoned or underutilized properties that are not being redeveloped because of the possibility that the property is contaminated. The problems caused by Brownfields include health problems for humans and wildlife exposed to the contamination on the sites, lost t...

The large volumes of wastes generated by industrialised society has led to efforts to find practical uses for these wastes, whilst also offsetting the consumption of natural resources. This paper describes the use of an innovative rotary kiln to produce synthetic aggregates from a variety of waste streams. The main waste used was a quarry fines which was ...

... 3, 4; O; biennial; NI. 00-374 *Dipsacus laciniatus L. � 3, 4; I; biennial; NI. 03-862 ... Thunb. � 2, 3; I; shrub; FACU. 00-734 Rubus occidentalis L. � 3, 5; O; shrub; NI. 00- ... ...

... 1, 2; I. 99-854 GYMNOSPERMS CUPRESSACEAEJuniperus virginiana L. 2, 3, 4; F. 97-573 PINACEAE�Pinus taeda ... Small 7; I. 89-1906 COMMELINACEAE*Commelina communis L. 2, 6; O. 86-599Commelina erecta L. 2; R....

Radon volumic activity has been monitored almost continuously for more than five years in the atmosphere of an abandoned underground quarry located in the north of France. The quarry is used as a test bench for studies of the subsidence risk, and is subject consequently to regular visits by scientific teams. Despite its geological ...

The Weldon Spring Chemical Plant is located just north of the drainage divide separating the Mississippi River and the Missouri River in St. Charles County, Missouri. From 1957 to 1966 the plant converted uranium-ore concentrates and recycled scrap to pure uranium trioxide, uranium tetrafluoride, and uranium metal. Residues from these operations were pumped to four large pits that had been ...

During the past decade Natural Occurring Radioactive Material (NORM) has been receiving growing attention by radiation protection agencies, including chronic exposure to radon and radiation from building materials. A new Israeli standard (5098) which limit the radionuclide concentration in building material entered into force in 2003. Building materials are often made of natural raw materials ...

(CAUDATA: PLETHODONTIDAE), FROM AN ABANDONED MINE SHAFT IN ARKANSAS Stanley E. Trauth Department in a nesting aggregation of western slimy salamanders (Plethodon albagula) from an abandoned mine shaft located and Gordon 1958); it also nests in abandoned mine shafts scat- tered throughout the Ouachita Mountains

This report presents results for the first 15 months of an environmental assessment of the solid residues generated by fluidized-bed coal combustion and oil gasification. Tasks included a literature search, chemical and physical residue characterization, laboratory leaching studies, and testing of residues in various materials and agricultural applications. The literature search reviewed current ...

The report gives results of the first 15 months of an environmental assessment of solid residues generated by fluidized-bed combustion (FBC) of coal and gasification of oil. Included are a literature search, chemical and physical residue characterization, laboratory leaching studies, and testing of residues in various materials and agricultural applications. The literature search reviewed current ...

In eastern Nebraska and Western Iowa limestone is quarried by open pit mining. After mining stops, waters fill the pits. These newly formed lakes become obvious features in the local ecosystems. A survey has been undertaken to examine water chemistry and related limnological features of these bodies. In addition, aspects of the immediate environment have been included to ...

From 1957 to 1966 the plant converted uranium-ore concentrates and recycles scrap to pure uranium trioxide, uranium tetrafluoride, and uranium metal. Residues from these operations were pumped to four large pits that had been excavated near the plant. Small springs and losing streams are present in the area. Water overlying the residue in the pits has a large concentration of dissolved solids and ...

This study examines the microbial colonization of three fronts of an abandoned dolostone quarry (Redue�a, Madrid, Spain) exposed to atmospheric conditions for different time periods since Roman times to the present. Through scanning electron microscopy in backscattered electron mode (SEM-BSE), endolithic colonization was predominantly detected in the ...

Anecdotal reports of deficiencies in past management of quarries and non- conformance to the AAD's policies stated in 'Quarrying in Antarctica, ...

Physical Mechanisms of Quarry Blast Sources ... a theoretical basis for the discrimi- nation of quarry blasts from earthquakes and nuclear tests, and to ...

... the rock to where it can be loaded and hauled. Since quarrying by explosives is an ... practices. Most quarrying is done by ...

... Database of articles on military and naval science, operational ... of the Seismic Effect of Quarry Blasts as a ... of the Copper Industry in quarries of the ...

Many of the grindstones used in Nigerian homes are quarried from sandstone in a small group of villages near Kano in the extreme north of the country. Of an unselected group of 126 stonecutters from two of these villages 49 were found to have radiographic evidence of silicosis, with progressive massive fibrosis in 17. Those with silicosis had worked longer in the ...

Quarried serpentinite, recently found to contain asbestos, is used to aggregate for surfacing secondary roads. Emission concentrations of 0.6 x 10 to the 6th power to 8 x 10 to the 6th power fibers/cu m were collected 20 m downwind from a serpentinite surfaced roadway. These leve...

Eight blasts were fired in a 2-1/2-ft bench in the Stewartville member of the Galena Limestone formation in an aggregate quarry near Stewartville, Minn. The shots were dimensionally proportional to production-size bench blasts, and were about 5 to 10 perc...

The 20-acre Lewisburg Dump site includes a 4-acre abandoned landfill developed in an abandoned 6-acre limestone quarry in Lewisburg, Marshall County, Tennessee. The municipally-owned and operated site began landfilling operations between 1963 and 1969, and a variety of residential and industrial wastes, including solvents and metallic ...

Aggregates are produced from sand and gravel deposits or from bedrock sources. Production sites are numerous to minimize transport and are more and more in a competing land use position. Urbanization, while creating a market, also sterilizes deposits and pressures producers to relocate further from populated areas. Regulating and permitting quarries is an ...

Samples of solid bitumen from the Thornton Quarry (Illinois) and the Cynthia Quarry (Mississippi) were found to be strongly magnetic and to have rock magnetic properties suggesting that the magnetizable grains present are magnetite. Studies of magnetic isolates revealed that magnetite is present primarily as spherical crystal ...

... Accession Number : AD0734332. Title : Quarrying with Nuclear Explosives. Descriptive Note : Technical rept,. Corporate ...

Placement of crushed aggregate by pneumatic methods to provide ground support in abandoned mines was simulated using specially designed discharge assemblies under controlled conditions. These tests were performed to determine the material throw distance, ...

The concomitant recycling of waste and carbon dioxide emissions is the subject of developing technology designed to close the industrial process loop and facilitate the bulk-re-use of waste in, for example, construction. The present work discusses a treatment step that employs accelerated carbonation to convert gaseous carbon dioxide into solid calcium carbonate through a reaction with industrial ...

Detecting unmapped abandoned wells thus remains a major carbon sequestration (CS) technology gap. Many (>10(sup 5)) abandoned wells are thought to lie in potential sequestration sites. For such wells, risk analysis to date has focused on aggregate long-te...

Models of quarry blasts may serve to develop efficient and robust methods for discriminating quarry blasts from other sources. In this report, we present progress on modeling quarry blasts at the Chemline quarry in central Texas and the Black Thunder mine...

Quarry blast sources are developed based on well-documented blasting practices from decades of blasting in quarries and used to simulate seismic signals from quarry blasts, and to examine the 'hide-in-quarry blast' scenario for evading detection of nuclea...

Various types of cement-SiO{sub 2}-CaCO{sub 3} mortar were prepared by replacing quarry limestone aggregate with limestone obtained as a by-product from waste of the mussel cannery industry. The CaCO{sub 3} aggregate consists mainly of elongated prismatic particles less than 4 {mu}m long rather than of the rounded particles of smaller ...

Mine-to-Mill optimization is a total systems approach to the reduction of energy and cost in mining and processing. Developed at the Julius Krutschnitt Mineral Research Center in Queensland, Australia, the Mine-to-Mill approach attempts to minimize energy consumption through optimization of all steps in the size reduction process. The approach involves sampling and modeling of blasting and ...

Natural and anthropogenic caves may represent a potential hazard for the built-up environment, due to the occurrence of underground instability processes, that may propagate upward and eventually reach the ground surface, thus inducing the occurrence of sinkholes. Especially when the caves are at shallow depth, the effects at the ground surface may result extremely severe. In the Apulia region of ...

Mine-to-Mill optimization is a total systems approach to the reduction of energy and cost in mining and mineral processing operations. Developed at the Julius Krutschnitt Mineral Research Centre (JKMRC) in Queensland, Australia, the Mine-to-Mill approach attempts to minimize energy consumption through the optimization of all steps in the size reduction process. The approach involves sampling and ...

This paper analyses the effect of water on the durability of hot asphalt mixtures made with recycled aggregates from construction and demolition debris. Indirect tensile stress tests were carried out to evaluate stripping behaviour. The mixtures tested were fabricated with 0, 20, 40 and 60% recycled aggregates. Two types of natural ...

Locating underground voids, tunnels, and buried collapse structures continues to present a difficult problem for engineering geoscientists charged with this responsibility for a multitude of different studies. Solutions used and tested for void detection have run the gamut of surface geophysical and remote sensing techniques, to invasive trenching and drilling on closely-spaced centers. No where ...

The rock properties at the Hakunge quarry, Sweden, have been investigated in connection with blasting experiments performed in the quarry. The work includes geological investigations in the laboratory and in the field and rock mechanics strength tests. Sp...

Dinosaur Quarry: An Important Paleontological Resource One of the many dinosaur bones found at the Hanksville-Burpee quarry The Hanksville-Burpee quarry has yielded...

MISCELLANEOUS PAPER HL-90-2 CRABTREE CREEK QUARRY PIT STRUCTURE ... 3 Page 8. CRABTREE CREEK QUARRY PIT STRUCTURE ...

This activity is a field investigation where students geologically map a defunct granite quarry in Saint Cloud Minnesota'sr Quarry Park.

The West Quarry Site/Northwestern States Portland Cement Company is listed by the U.S. Environmental Protection Agency (EPA) on the National Priority Lists (NPL). The site is a 150-acre old abandoned quarry (including kiln dust deposits and the flooded portion which contains contaminated water), located in the western portion of ...

The supply of aggregates suitable for use in construction and maintenance of infrastructure in western North America is a continuing concern to the engineering and resources-management community. Steady population growth throughout the region has fueled demand for high-quality aggregates, in the face of rapid depletion of existing ...

Between March and July 2000, the RAND Science and Technology Policy Institute conducted a series of in-depth, confidential discussions with key members of the mining community to elicit a wide range of views on technology trends in all sectors of the U.S. mining and quarrying industry. The discussions included 58 organizations engaged in coal, metals, ...

The May issue of Energy Matters (formerly Turning Point) features articles on motor, steam, and compressed air systems management. One article explains how chemical treatment can improve boiler system efficiency; another discusses the importance of data logging to assess compressed air system performance. A feature article describes motor system upgrades at Blue Circle ...

The first generation of harmonized European standards for aggregates is almost complete. Product standards and test methods exist for all areas defined in the mandate from the European Commission. This package of standards is mandatory from June 2004. However, much work remains to implement the standards in all countries, gather information from their use and finally to ...

To mitigate the adverse environmental impact of forest roads, especially degradation of endangered salmonid habitat, many public and private land managers in the western United States are actively decommissioning roads where practical and affordable. Road decommissioning is associated with reduced long-term environmental impact. When decommissioning a road, it may be possible to recover some ...

To mitigate the adverse environmental impact of forest roads, especially degradation of endangered salmonid habitat, many public and private land managers in the western United States are actively decommissioning roads where practical and affordable. Road decommissioning is associated with reduced long-term environmental impact. When decommissioning a road, it may be possible to recover some ...

Reclaiming mined-out aggregate pits in California has become the focus of increasing concern. Reclamation ordinances have been adopted: (1) to ensure compliance with a community's master plan that may designate specific land uses to fulfill that community's requirements for flood control, greenbelts, landfills, or other land needs; (2) to guarantee that ...

There is a need for an effective method to estimate the quality of crushed rock aggregates and its usability in the early stages of project planning, e.g., for road and railway constructions and quarry prospecting. The proposed method is based on mineralogical and petrographic analyses of drill cuttings and analysis of the coarse fraction to estimate the ...

The objective of this demonstration project was to evaluate the hot-mix recycling process as a method of renovating a badly cracked and otherwise deteriorated section of road-mixed bituminous paving in southwestern Kansas. The equipment used on the project included a cold milling machine to reclaim the upper portion of existing pavement; a drum dryer hot-mix plant modified to process the material; ...

The objective of this demonstration project was to evaluate the hot mix recycling process as a method of renovating a badly cracked and otherwise deteriorated section of road mixed bituminous paving in southwestern Kansas. The equipment used on the project included a cold milling machine to reclaim the upper portion of existing pavement; a drum dryer hot mix plant modified to process the material; ...

A set of finite difference calculations were performed to modal the effects of a quarry bench on the excitation of seismic signals from a quarry. This work complements other S-CUBED research on the nonlinear behavior of the quarry blast source (spall from...