mining‚ dams and their effects on forests and tribal people b. Water Resources: Use and over-utilisation of surface and ground water‚ floods‚ drought‚ conflicts over water‚ dams – benefits and problems. c. Mineral Resources: Use and exploitation‚ environmental effects of extracting and using mineral resources‚ case studies. 16 20 20 22 22 23 26 30 32 d. Food Resources: World food problems‚ Changes in landuse by agriculture and grazing‚ Effects of modern agriculture‚ Fertilizer/ pesticide problems
Premium Water Irrigation Hydrology
PHILIPPINE MINING LAW What is mining? Mining is the extraction (removal) of minerals and metals from earth. Manganese‚ tantalum‚ cassiterite‚ copper‚ tin‚ nickel‚ bauxite (aluminum ore)‚ iron ore‚ gold‚ silver‚ and diamonds are just some examples of what is mined. Why mine? Mining is a money making business. Not only do mining companies prosper‚ but governments also make money from revenues. Workers also receive income and benefits. History of Mining in the Philippines First Mining Law:
Premium Mining Gold Ore
1. Explain the difference between a “reserve” and a “resource”. What factors influence estimates of reserves and resources for commodities such as minerals or fossil fuels? Resources and reserves are similar in that the both benefit humanity. Resources are materials that can be used to satisfy human needs‚ or used as support. Reserves on the other hand are known deposits with the ability to extract the available material economically; the size of these reserves is not always known or defined
Premium Renewable resource Population World population
Pyrite is a very interesting mineral for many reasons. The name Pyrite comes from the Greek word “pyr” which means “fire‚” and was named because it was found that sparks would fly from it if struck against another minerals like steel. In early times‚ this sparking ability gave people a way of creating fire‚ and in later times‚ this ability made it popular for use in early firearms devices like the wheel lock. Today Pyrite is called “Fools Gold” because throughout history people have mistaken it for
Premium Mineral Sulfur
Barite is the most common mineral ‚ whose composition is additive barium. Produced in hot liquid mineral veins of low temperature‚ such as quartz-barite veins‚ fluorite-barite pulse and so on‚ often symbiosis with galena‚ sphalerite‚ chalcopyrite and cinnabar.Feed grizzly Barite Mining‚ always applies enhanced dressing production line‚ among which the main process is to roast the gained raw materials. The undressed ore containing barite firstly is crushed roughly and elaborately (this process normally
Premium Lead Mining Glass
separation machine. The milling equipments how to choose from sand iron? These mineral processing equipment general working principle: they separate river sand magnetic separation machine ferromagnetic magnetic separation system. And general sand-excavating iron ore dressing equipment by measures sand-excavating system‚ screening system‚ magnetic separation system‚ tailings dust removal system‚ driver systems. This mineral processing equipment of feeding system is a chain sand-excavating system‚ by
Premium Mining Mineral Iron
The rock cycle is very important to us because it explains the way the different types of rocks are formed on earth. The rocks currently visible on the Earth’s surface have moved through transition stages that transformed them from one form into another. The importance of the rock cycle lies in how it forms and recycles the various layers that make up the Earth. To do this‚ the cycle moves through three different stages that produce three different types of rock. Igneous rock makes up the foundation
Premium Igneous rock Sedimentary rock Rock
Easiest Way to Differentiate Aventurine and jade are two green shaded gemstones that may befuddle a few people. Aventurine is an assortment of quartz which contains little Mica‚ Hematite or Goethite. Jade is the gemstone name given for two distinct minerals Nephrite and Jadeite. This is the key contrast amongst Aventurine and Jade. Now and again‚ aventurine is otherwise called Indian jade or Australian jade‚ yet it is not considered as a type of jade. Aventurine VS Jade What is Aventurine? Aventurine
Premium Chemistry Oxygen Color
classes known as: • Clastic (detrital) Sedimentary Rocks • Chemical Sedimentary Rocks Clastic (detrital) Sedimentary Rocks 1. Made up of mineral grains‚ fragments of other rocks (called lithic fragment)‚ shells and other inorganic(hard) of formally living organisms. 2. The clastic particles or grains in a sedimentary rocks are cemented together by mineral precipitates that formed during the process of diagenesis. 3. These rocks are divided according to sizes of component particle such as: a)
Premium Sedimentary rock Coal Mineral
Extraction of metals The History of Metals. Metals have been used by people for many thousands of years. Gold and silver‚ found as native metal‚ were used both as jewellery and as a status symbol - nothing new there. These metals were known in the Stone Age‚ but gold and silver are too soft to be used as tools. The first really useful metal to be discovered was bronze. This began the Bronze Age. Bronze was used extensively for tools and weapons in Asia and Africa from 4‚500 B.C. (6‚500 years
Premium Oxygen Metal Iron