General Trends And Disciplines Within The Study Of Geography

Geography is one of the sciences you can not do without nowadays. What makes it so important? It helps you learn more about the world you live in. New research fields and disciplines within geography study appear constantly.

There are two main areas within geography.

The Earth from the point of view of environmental patterns and processes is studied by physical geography. Human use and understanding of Earth is the subject of human geography. These branches are closely interconnected and related to external disciplines like physics, biology, history and social sciences. Among human geography disciplines there are 1.economic geography which deals with the study of different economic types and formations in their relationship with each other and the natural environment, 2.political geography the issue of which is studying relationship between political processes and spatial peculiarities, 3.cultural geography studying the variation of specific cultural features and standards throughout the world, 4.tourism geography which observes tourism as human activity, 5.historical geography that holds together such issues as history of geographic science and the changes in territorial division and environment throughout time, 6.urban geography which studies the infrastructure and processes within urban areas. Physical geography concerns the following issues: 1.geomorphology that is the study of the Earth surface and the processes forming it, 2.hydrology that aims at researching the processes of water movement and accumulation throughout the Earth – it’s connected to glaciology – the study of glaciers and ice sheets – and oceanography – the study of oceans and seas, 3.biogeography i.e. the study of animal species populations, their spatial division and the processes affecting it, 4.climatology – the study of climate, 5.pedology – the soil study, 6.paleogeography investigating the processes which took place in the prehistoric ages and their outcomes in modern times, 7.landscape ecology that deals with the interconnection between ecological processes and landscape patterns. By: Michael Cockson Article Directory: http://www.articledashboard.com/?General Trends And Disciplines Within The Study Of Geography. Michael Cockson is an ambitious young writer and researcher who provides good research paper writing services in several fields of study. Being a highly educated and all-rounded person, Michael knows writing a term paper and non plagiarized term paper inside out.

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6 simple ways to save energy at home Share this on: Facebook Twitter Digg delicious reddit MySpace StumbleUpon LinkedIn October 20, 2009|By Liz Welch * To save money and energy, seal electrical outlets along the exterior walls of your home. Make a few easy changes around the house for substantial savings. Seal sneaky leaks Seal electrical outlets in the exterior walls of your house. Foam insulating gaskets (less than $1 each) "act as a barrier so conditioned air stays in, rather than leaking out," says Jonathan Passe of the Environmental Protection Agency. Just unscrew the outlet cover, install the gasket, and replace the cover. RealSimple.com: 8 legitimate Earth-friendly seals Go with the flow Install a high-performance showerhead. This uses 1½ gallons of water per minute (gpm) rather than 2½ gallons, the federal upper limit for new showerheads. Advertisement Ads by Google * Cari hotel di Singapura?Penawaran baru hotel Singapura. Pesanlah sekarang! agoda.web.id/Singapore_Hotels * LED Lighting SolutionsCreating a new generation of LED- based lighting products www.rambus.com/lighting By switching from a 2½-gpm to a 1½-gpm model ($20 and up), a family of four (each person taking daily 10-minute showers) could save about $88 a year on water and energy costs with gas water heating and $135 a year with electric, according to figures from the Department of Energy Federal Energy Management Program. RealSimple.com: 50 all-time favorite new uses for old things Swap out bulbs Replace incandescent bulbs with CFLs (compact fluorescent lightbulbs). A $10 CFL uses about a quarter of the wattage of an incandescent bulb, which amounts to more than $30 in savings per replaced bulb over the lifetime of the CFL (which averages 10,000 hours or 416 days). "If every household in the United States replaced one incandescent bulb with a CFL," says Pablo Päster, a sustainability engineer based in San Francisco, California, "the energy savings would be the equivalent of shutting down one coal-fired power plant." Be cool Wash clothes in cold water. You may already know that this saves energy, but do you know how much? "Up to 90 percent of the cost of washing clothes comes from heating the water, so use hot water only for very dirty clothes," says Adam Gottlieb of the California Energy Commission. Another tip: "Match the water level to the amount of clothes, or wait to wash full loads," suggests Clement. "The water savings can be enormous." RealSimple.com: How to save on green goods Close (or open) your blinds Leave blinds down on south-and west-facing windows on hot summer days to keep your space cool. "This prevents the sun from warming your home and making your cooling system work harder," says Clement. "In winter, leave blinds up to allow the sun to help heat your home." Upgrade your heating (and cooling) system Install (and properly program) a programmable thermostat. The average household spends $2,200 annually on energy bills, and about half of that is for heating and cooling, says Vargas. A programmable thermostat costs $50 to $80, is easy to install, and can save about $180 a year. You can shave 2 percent off your heating (or cooling) bill for each degree you lower (or raise) the thermostat for at least eight hours a day while you're away from home or asleep, says Amanda Korane of the American Council for an Energy-Efficient Economy. Souerce : CNN Articles © 2011 Cable News Network. Turner Broadcasting System, Inc. All Rights Reserved Privacy Guidelines

Indonesia’s Coal Sector Eyes 2012 Boom

Coal production is set to surge next year as coal miners bolster their businesses and several new mines commence production, the nation’s miners say. Indonesia’s production of thermal and coking coal is forecast to hit 380 million tons in 2012, up 5.5 percent on this year’s estimate, Supriatna Suhala, the executive director of the Indonesian Coal Mining Association (APBI), said on Monday. The Energy Ministry’s forecast for coal production next year is 332 million tons, but that estimate does not include the output of smaller mining companies. China’s demand for coal is expected to double in the next five years to 6 billion tons, according to the APBI. Meanwhile, coal is used in Indonesia’s power plants to make up for insufficient supplies of natural gas, which is locally produced in large amounts but most of which is exported. Indonesia exports the majority of its coal to China, India and Japan. Meanwhile, domestic consumption is regulated under domestic market obligations. The Energy Ministry said that next year 63 coal producers were obliged to supply as much as 82 million tons for domestic consumption, a 4 percent increase from this year’s requirement. The coal is allocated to state-owned electricity company Perusahaan Listrik Negara, which uses as much as 57 million tons — 70 percent of the total demand. The remaining coal will be allocated to cement factories, gold and copper producers Newmont Nusa Tenggara, Freeport Indonesia and Antam and nickel producer Inco. Supriatna said global energy demand was prompting many coal miners to ramp up production and pushing non-energy companies to expand into coal mining. He said more countries, such as Kenya, Bangladesh and Pakistan, were seeking to import coal from Indonesia. “Industries see it as an interesting time to invest in the coal mining sector,” Supriatna said. The APBI forecast that coal prices would be steady next year. The Energy Ministry said that as of August, Indonesia’s coal reference price was $117 per ton, up 4.5 percent from January. About 62 percent of Indonesia’s coal production is categorized as middle-calorie, which is used to fuel power plants at home and abroad. More than 13 percent is high-calorie coal, almost all of which is exported to Japan because of its stringent requirements for carbon emissions. It is used there for power generation and steelmaking. In 2010, Indonesian production declined because of wetter-than-normal conditions. The government plans to ban shipments of raw coal material by 2014, instead requiring the sector to add value to the product before it can be exported. The largest player in the Indonesian coal industry is industrial giant Bumi Resources, followed by Adaro and Kideco Jaya Agung, a unit of Indika. The sector’s activities are focused on the resource-rich island of Kalimantan. * THE JAKARTA GLOBE * GLOBE ASIA * THE PEAK Welcome Guest | Login | Signup Newspaper Subscription JG Logo Thu, October 27, 2011 Archive Search * HOME * NEWS * BUSINESS * INTERNATIONAL * TECH * SPORTS * LIFE & TIMES * OPINION * MY JAKARTA * BLOGS Indonesia’s Coal Sector Eyes 2012 Boom Ririn Radiawati Kusuma | September 12, 2011 Like the activity at this coal mine in Berau, East Kalimantan, the coal mining sector is set to explode in 2012, the industry forecasts. (Reuters Photo/Yusuf Ahmad) Like the activity at this coal mine in Berau, East Kalimantan, the coal mining sector is set to explode in 2012, the industry forecasts. (Reuters Photo/Yusuf Ahmad) Related articles Moody’s Sees More Growth For Indonesian Coal Miners 9:51pm Oct 25, 2011 Bumi’s Coal Output Soars on Rising Demand 10:05pm Oct 21, 2011 Coal Price May Fall as China Buys Less 10:15pm Oct 14, 2011 Adaro Buys Logistics Company for Rp 200b 8:23pm Oct 13, 2011 Indonesia Considers Coal Export Tax: Industry Groups 1:56pm Oct 13, 2011 Share This Page 7 14 0 0 Share with google+ : Post a comment Please login to post comment Comments Be the first to write your opinion! Coal production is set to surge next year as coal miners bolster their businesses and several new mines commence production, the nation’s miners say. Indonesia’s production of thermal and coking coal is forecast to hit 380 million tons in 2012, up 5.5 percent on this year’s estimate, Supriatna Suhala, the executive director of the Indonesian Coal Mining Association (APBI), said on Monday. The Energy Ministry’s forecast for coal production next year is 332 million tons, but that estimate does not include the output of smaller mining companies. China’s demand for coal is expected to double in the next five years to 6 billion tons, according to the APBI. Meanwhile, coal is used in Indonesia’s power plants to make up for insufficient supplies of natural gas, which is locally produced in large amounts but most of which is exported. Indonesia exports the majority of its coal to China, India and Japan. Meanwhile, domestic consumption is regulated under domestic market obligations. The Energy Ministry said that next year 63 coal producers were obliged to supply as much as 82 million tons for domestic consumption, a 4 percent increase from this year’s requirement. The coal is allocated to state-owned electricity company Perusahaan Listrik Negara, which uses as much as 57 million tons — 70 percent of the total demand. The remaining coal will be allocated to cement factories, gold and copper producers Newmont Nusa Tenggara, Freeport Indonesia and Antam and nickel producer Inco. Supriatna said global energy demand was prompting many coal miners to ramp up production and pushing non-energy companies to expand into coal mining. He said more countries, such as Kenya, Bangladesh and Pakistan, were seeking to import coal from Indonesia. “Industries see it as an interesting time to invest in the coal mining sector,” Supriatna said. The APBI forecast that coal prices would be steady next year. The Energy Ministry said that as of August, Indonesia’s coal reference price was $117 per ton, up 4.5 percent from January. About 62 percent of Indonesia’s coal production is categorized as middle-calorie, which is used to fuel power plants at home and abroad. More than 13 percent is high-calorie coal, almost all of which is exported to Japan because of its stringent requirements for carbon emissions. It is used there for power generation and steelmaking. In 2010, Indonesian production declined because of wetter-than-normal conditions. The government plans to ban shipments of raw coal material by 2014, instead requiring the sector to add value to the product before it can be exported. The largest player in the Indonesian coal industry is industrial giant Bumi Resources, followed by Adaro and Kideco Jaya Agung, a unit of Indika. The sector’s activities are focused on the resource-rich island of Kalimantan. Source : Copyright ©2011 Jakarta Globe, All Rights Reserved

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Diamond Mining in Indonesia BMDiamondcorp (previously Battlefield Minerals Corp) has acquired Ashton's 80% interest in a diamond dredging operation in the Cempaka area in Kalimantan and has raised 1.75 million pounds to commence exploration. The joint venture is also investigating alluvial diamond despots in Martapura and Danau Seran in South Kalimantan. The recently completed Cempaka feasibility study estimate an average annual production of 41 000ct over a 18 year life of mine. Gold and other heavy minerals could be recovered as a by product of this process, using a bucket line dredge, similar to those used in tin dredging operations. Users of the MBendi website are assumed to have read and agreed to our terms and conditions © 1995-2011, MBendi and its associated information providers

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Relief Muka Bumi & Vulkanisme  eSeMAN1s You have come to this page to find information on Relief Muka Bumi & Vulkanisme  eSeMAN1s. However, we currently do not have data about the Relief Muka Bumi & Vulkanisme  eSeMAN1s. You can find more information by using other keywords that may be similar to Relief Muka Bumi & Vulkanisme  eSeMAN1s and use the search box below. Thank you for using the service eLowonganPekerjaan.Com as a job seeker site number one in Indonesia. Relief Muka Bumi & Vulkanisme  eSeMAN1s Suggestions: Or use other keyword than Relief Muka Bumi & Vulkanisme  eSeMAN1s with search box below. Copyright © 2009 - eLowonganPekerjaan.com - have come with Awesome WordPress Fully Support : Naru Bursa eLowonganPekerjaan.com Terbaru Job Vacancies Job Search is Maintain by: Lowongan Kerja Terbaru 2010 About, Privacy Policy, Sitemaps, Top 100 Job Search

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Uses of Fossil Fuels Fossil fuels is the name given to a group of substances believed to have been formed by the decomposition of plant and animal matter under intense pressure and heat over hundreds of millions of years. The major forms of fossil fuels are coal, oil and natural gas. According the Department of Energy, fossil fuels are used for more than 85 percent of all energy consumption in the U.S. 1. Electricity * Fossil fuels, particularly coal, are used in power plants for electricity production. Transportation * While there has been some transition toward hybrid and electric vehicles, the vast majority of vehicles require fossil fuels to operate. Heating * Most heating is provided through fossil fuel-based heating oils and natural gas, or indirectly through fossil fuel-generated electricity. Cooling * Like heating, most cooling systems rely directly or indirectly on fossil fuel-provided energy. Considerations * While fossil fuels are the core source of current energy production, they are considered to be a limited, nonrenewable and polluting energy source. These factors will ultimately require the development of large-scale alternatives. * Cari hotel di Singapura?agoda.web.id/Singapore_Hotels Penawaran baru hotel Singapura. Pesanlah sekarang! * Advanced Wind Bladeswww.vistagy.com Developing Superior Composite Wind Blades. Download Free eBook Now. * Ash Handlingwww.macawber.com Macawber manufactures Ash Handling Systems and the Dome Valve * Biofuels networkingwww.biofuelsinternationalexpo.com Meet with leading international biofuels producers in Asia & Europe Read more: Uses of Fossil Fuels | eHow.com http://www.ehow.com/facts_5294988_uses-fossil-fuels.html#ixzz1bfYeZYAR Copyright © 1999-2011 Demand Media, Inc. Use of this web site constitutes acceptance of the eHow Terms of Use and Privacy Policy. Ad Choices en-US

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Limestone From Wikipedia, the free encyclopedia Jump to: navigation, search For other uses, see Limestone (disambiguation). Limestone Sedimentary Rock Limestone Formation In Waitomo.jpg Limestone in Waitomo District, New Zealand Composition Calcium carbonate: inorganic crystalline calcite and/or organic calcareous material Limestone is a sedimentary rock composed largely of the minerals calcite and aragonite, which are different crystal forms of calcium carbonate (CaCO3). Many limestones are composed from skeletal fragments of marine organisms such as coral or foraminifera. Limestone makes up about 10% of the total volume of all sedimentary rocks. The solubility of limestone in water and weak acid solutions leads to karst landscapes, in which water erodes the limestone over thousands to millions of years. Most cave systems are through limestone bedrock. Limestone has numerous uses, including as a building material, as aggregate to form the base of roads, as white pigment or filler in products such as toothpaste or paints, and as a chemical feedstock. Description Limestone quarry at Cedar Creek, Virginia, USA La Zaplaz formations in the Piatra Craiului Mountains, Romania. Limestone is a sedimentary rock composed largely of the minerals calcite and aragonite, which are different crystal forms of calcium carbonate (CaCO3). Like most other sedimentary rocks, limestone is composed of grains; however, most grains in limestone are skeletal fragments of marine organisms such as coral or foraminifera. Other carbonate grains comprising limestones are ooids, peloids, intraclasts, and extraclasts. These organisms secrete shells made of aragonite or calcite, and leave these shells behind after the organisms die. Limestone often contains variable amounts of silica in the form of chert (chalcedony, flint, jasper, etc.) or siliceous skeletal fragment (sponge spicules, diatoms, radiolarians), and varying amounts of clay, silt and sand (terrestrial detritus) carried in by rivers. Some limestones do not consist of grains at all, and are formed completely by the chemical precipitation of calcite or aragonite, i.e. travertine. Secondary calcite may be deposited by supersaturated meteoric waters (groundwater that precipitates the material in caves). This produces speleothems, such as stalagmites and stalactites. Another form taken by calcite is oolitic limestone, which can be recognized by its granular (oolite) appearance. The primary source of the calcite in limestone is most commonly marine organisms. Some of these organisms can construct mounds of rock known as reefs, building upon past generations. Below about 3,000 meters, water pressure and temperature conditions cause the dissolution of calcite to increase nonlinearly, so limestone typically does not form in deeper waters (see lysocline). Limestones may also form in both lacustrine and evaporite depositional environments.[1][2] Calcite can be either dissolved or precipitated by groundwater, depending on several factors, including the water temperature, pH, and dissolved ion concentrations. Calcite exhibits an unusual characteristic called retrograde solubility, in which it becomes less soluble in water as the temperature increases. Because of impurities, such as clay, sand, organic remains, iron oxide and other materials, many limestones exhibit different colors, especially on weathered surfaces. Limestone may be crystalline, clastic, granular, or massive, depending on the method of formation. Crystals of calcite, quartz, dolomite or barite may line small cavities in the rock. When conditions are right for precipitation, calcite forms mineral coatings that cement the existing rock grains together, or it can fill fractures. Travertine is a banded, compact variety of limestone formed along streams, particularly where there are waterfalls, and around hot or cold springs. Calcium carbonate is deposited where evaporation of the water leaves a solution supersaturated with the chemical constituents of calcite. Tufa, a porous or cellular variety of travertine, is found near waterfalls. Coquina is a poorly consolidated limestone composed of pieces of coral or shells. During regional metamorphism that occurs during the mountain building process (orogeny), limestone recrystallizes into marble. Limestone is a parent material of Mollisol soil group. [edit] Classification Two major classification schemes, the Folk and the Dunham, are used for identifying limestone and carbonate rocks. [edit] Folk classification Main article: Folk classification Robert L. Folk developed a classification system that places primary emphasis on the detailed composition of grains and interstitial material in carbonate rocks. Based on composition, there are three main components: allochems (grains), matrix (mostly micrite), and cement (sparite). The Folk system uses two-part names; the first refers to the grains and the second is the root. It is helpful to have a petrographic microscope when using the Folk scheme, because it is easier to determine the components present in each sample.[3] [edit] Dunham classification Main article: Dunham classification The Dunham scheme focuses on depositional textures. Each name is based upon the texture of the grains that make up the limestone. Robert J. Dunham published his system for limestone in 1962; it focuses on the depositional fabric of carbonate rocks. Dunham divides the rocks into four main groups based on relative proportions of coarser clastic particles. Dunham names are essentially for rock families. His efforts deal with the question of whether or not the grains were originally in mutual contact, and therefore self-supporting, or whether the rock is characterized by the presence of frame builders and algal mats. Unlike the Folk scheme, Dunham deals with the original porosity of the rock. The Dunham scheme is more useful for hand samples because it is based on texture, not the grains in the sample.[4] [edit] Types There are many types of limestone the most common ones: Chalk, crystalline, fossilferous, oolitic and travertine. For more see link below. Main article: List of types of limestone [edit] Limestone landscape Main article: Karst topography The Cudgel of Hercules, a tall limestone rock (Pieskowa Skała Castle in the background) Limestone makes up about 10% of the total volume of all sedimentary rocks.[5][6] Limestone is partially soluble, especially in acid, and therefore forms many erosional landforms. These include limestone pavements, pot holes, cenotes, caves and gorges. Such erosion landscapes are known as karsts. Limestone is less resistant than most igneous rocks, but more resistant than most other sedimentary rocks. It is therefore usually associated with hills and downland, and occurs in regions with other sedimentary rocks, typically clays. Karst topography and caves develop in limestone rocks due to their solubility in dilute acidic groundwater. The solubility of limestone in water and weak acid solutions leads to karst landscapes. Regions overlying limestone bedrock tend to have fewer visible above-ground sources (ponds and streams), as surface water easily drains downward through joints in the limestone. While draining, water and organic acid from the soil slowly (over thousands or millions of years) enlarges these cracks, dissolving the calcium carbonate and carrying it away in solution. Most cave systems are through limestone bedrock. Cooling groundwater or mixing of different groundwaters will also create conditions suitable for cave formation. Coastal limestones are often eroded by organisms which bore into the rock by various means. This process is known as bioerosion. It is most common in the tropics, and it is known throughout the fossil record (see Taylor and Wilson, 2003). Bands of limestone emerge from the Earth's surface in often spectacular rocky outcrops and islands. Examples include the Burren in Co. Clare, Ireland; the Verdon Gorge in France; Malham Cove in North Yorkshire and the Isle of Wight,[7] England; on Fårö near the Swedish island of Gotland, the Niagara Escarpment in Canada/United States, Notch Peak in Utah, the Ha Long Bay National Park in Vietnam and the hills around the Lijiang River and Guilin city in China. The Florida Keys, islands off the south coast of Florida, are composed mainly of oolitic limestone (the Lower Keys) and the carbonate skeletons of coral reefs (the Upper Keys), which thrived in the area during interglacial periods when sea level was higher than at present. Unique habitats are found on alvars, extremely level expanses of limestone with thin soil mantles. The largest such expanse in Europe is the Stora Alvaret on the island of Öland, Sweden. Another area with large quantities of limestone is the island of Gotland, Sweden. Huge quarries in northwestern Europe, such as those of Mount Saint Peter (Belgium/Netherlands), extend for more than a hundred kilometers. The world's largest limestone quarry is at Michigan Limestone and Chemical Company in Rogers City, Michigan.[8] [edit] Uses Limestone is very common in architecture, especially in Europe and North America. Many landmarks across the world, including the Great Pyramid and its associated complex in Giza, Egypt, are made of limestone. So many buildings in Kingston, Canada were constructed from it that it is nicknamed the 'Limestone City'.[9] On the island of Malta, a variety of limestone called Globigerina limestone was, for a long time, the only building material available, and is still very frequently used on all types of buildings and sculptures. Limestone is readily available and relatively easy to cut into blocks or more elaborate carving. It is also long-lasting and stands up well to exposure. However, it is a very heavy material, making it impractical for tall buildings, and relatively expensive as a building material. The Great Pyramid of Giza, one of the Seven Wonders of the Ancient World; its outside cover is made entirely from limestone. Courthouse built of limestone in Manhattan, Kansas A limestone plate with a negative map of Moosburg in Bavaria is prepared for a lithography print. Limestone was most popular in the late 19th and early 20th centuries. Train stations, banks and other structures from that era are normally made of limestone. It is used as a facade on some skyscrapers, but only in thin plates for covering, rather than solid blocks. In the United States, Indiana, most notably the Bloomington area, has long been a source of high quality quarried limestone, called Indiana limestone. Many famous buildings in London are built from Portland limestone. Limestone was also a very popular building block in the Middle Ages in the areas where it occurred, since it is hard, durable, and commonly occurs in easily accessible surface exposures. Many medieval churches and castles in Europe are made of limestone. Beer stone was a popular kind of limestone for medieval buildings in southern England. Limestone and (to a lesser extent) marble are reactive to acid solutions, making acid rain a significant problem to the preservation of artifacts made from this stone. Many limestone statues and building surfaces have suffered severe damage due to acid rain. Acid-based cleaning chemicals can also etch limestone, which should only be cleaned with a neutral or mild alkaline-based cleaner. Other uses include: * It is the raw material for the manufacture of quicklime (calcium oxide), slaked lime (calcium hydroxide), cement and mortar. * Pulverized limestone is used as a soil conditioner to neutralize acidic soils. * It is crushed for use as aggregate—the solid base for many roads. * Geological formations of limestone are among the best petroleum reservoirs; * As a reagent in flue gas desulfurization, it reacts with sulfur dioxide for air pollution control. * Glass making, in some circumstances, uses limestone. * It is added to toothpaste, paper, plastics, paint, tiles, and other materials as both white pigment and a cheap filler. * It can suppress methane explosions in underground coal mines. * Purified, it is added to bread and cereals as a source of calcium. * Calcium levels in livestock feed are supplemented with it, such as for poultry (when ground up).[10] * It can be used for remineralizing and increasing the alkalinity of purified water to prevent pipe corrosion and to restore essential nutrient levels.[11] * Used in blast furnaces, limestone extracts iron from its ore. * It is often found in medicines and cosmetics. * It is used in sculptures because of its suitability for carving. [edit] Gallery * Limestone cropping out at São Pedro de Moel beach, Marinha Grande, Portugal * A stratigraphic section of Ordovician limestone exposed in central Tennessee, U.S. The less-resistant and thinner beds are composed of shale. The vertical lines are drill holes for explosives used during road construction. * Thin-section view of a Middle Jurassic limestone in southern Utah. The round grains are ooids; the largest is 1.2 mm in diameter. This limestone is an oosparite. * Photo and etched section of a sample of fossiliferous limestone from the Kope Formation near Cincinnati, Ohio [edit] References 1. ^ Trewin, N.H. & Davidson, R.G. 1999. Lake-level changes, sedimentation and faunas in a Middle Devonian basin-margin fish bed, Geological Society, 156, 535-548 2. ^ Oilfield Glossary: Term 'evaporite' 3. ^ Folk RL, (1974) Petrology of Sedimentary Rocks, Hemphill Publishing, Austin, Texas 4. ^ Dunham, R.J., 1962, Classification of carbonate rocks according to depositional textures, in Ham W.E. (ed.), Classification of carbonate rocks: Am. Assoc. Petroleum Geologists Mem. 1,p. 108-121 5. ^ "Calcite". http://www.mine-engineer.com/mining/mineral/calcite.htm. Retrieved 2008-02-13. 6. ^ "Limestone (mineral)". Archived from the original on 2009-10-31. http://www.webcitation.org/query?id=1257008095152489. Retrieved 2008-02-13. 7. ^ "Isle of Wight, Minerals" (PDF). http://www.iwight.com/council/documents/policies_and_plans/udp/2002_pdfs/minerals.pdf. Retrieved 2006-10-08. 8. ^ Michigan Markers 9. ^ "Welcome to the Limestone City". http://www.citylifeontario.com/kingston/. Retrieved 2008-02-13. 10. ^ "PoultyOne article on Calcium for chickens". http://poultryone.com/articles/calcium.html. 11. ^ "World Health Organization report". http://www.who.int/water_sanitation_health/dwq/nutconsensus/en/. [edit] Further reading * Taylor, P.D. and Wilson, M.A., 2003. Palaeoecology and evolution of marine hard substrate communities. Earth-Science Reviews 62: 1-103.[1] * Folk RL, (1974) Petrology of Sedimentary Rocks, Hemphill Publishing, Austin, Texas * Dunham, R.J., 1962, Classification of carbonate rocks according to depositional textures, in Ham W.E. (ed.), Classification of carbonate rocks: Am. Assoc. Petroleum Geologists Mem. 1,p. 108-121 [edit] See also Wikimedia Commons has media related to: Limestones * Calcium carbonate * Chalk * Coral sand * In Praise of Limestone Retrieved from "http://en.wikipedia.org/w/index.php?title=Limestone&oldid=456440128" View page ratings Rate this page Rate this page Page ratings What's this? Current average ratings. 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