Section 1: Mineral Resources

Slides:



Advertisements
Similar presentations
Chapter 3:Minerals of the Earth’s Crust Mineral-A naturally formed inorganic solid that has a definite crystalline structure. Rocks are composed of minerals.
Advertisements

Using Mineral Resources
Chapter 5 and 6 Rocks.
Section 1: Minerals and Mineral Resources
Economic and environmental considerations
Mining and Mineral Resources
What is a Mineral? Naturally-formed solid substance with a crystal structure Naturally-formed solid substance with a crystal structure Pyromorphite.
{ Mineral Resources Chapter Mineral Resources a. a. Nonrenewable resources are substances of limited supply and cannot be replaced but only.
 1. What is a mineral?  a. Occurs naturally in Earth’s crust  b. Has a specific makeup.  c. It’s a solid  d. Can be a single element of compounds.
Mining and Mineral Resources. Minerals: solids with characteristic chemical composition, orderly internal structure, and a characteristic set of physical.
Section 1: Mineral Resources
Chapter 3-1 Properties of Minerals. C. Welke
How do we know if something is a mineral?
Chapter 3 Minerals Part II How are Minerals formed? One way is the cooling of magma Atoms migrate together and form different compounds The elements.
Mineral Resources & Mining
Preview Section 1 What Is a Mineral Section 2 Identifying Minerals
Chapter 11 Resources and Energy. A resource is any useful information, material or services. Resources can be described as being: natural resources -goods.
Chapter Seven Resources & Energy.
Mining and Mineral ResourcesSection 1 Mineral Resources We depend on the use of mineral resources in almost every aspect of our daily life. However, our.
DNA properties identification Resources Formation
Mining and Mineral Resources
Mining and Mineral Resources
How Minerals Form Minerals Chapter 4 Sec 2. Minerals Form in Two Ways Crystallization of Melted Materials (i.e. magma and lava) Crystallization of Materials.
Rock and Mineral Resources
Resources and Energy Monroe Natural Resources (2 types)
Economic Geology. Mineral resources  Renewable  Can be replaced in a humans life time  Non-renewable  Limited supply  Can not be replaced in a humans.
CH 7 RESOURCES AND ENERGY. Background  Earth’s crust contains useful mineral resources.  The processes that formed many of these resources took millions.
Resources and Energy Section 1 Section 1: Mineral Resources Preview Key Ideas Ores The Formation of Ores and Placer Deposits Uses of Mineral Resources.
Chapter 16, Section 1: Minerals & Mineral Resources Standards: SEV4a, c, e.
Chapter 7 Resources and energy
Chapter 3 Section 3. The Formation, Mining, and Use of Minerals What You Will Learn Describe the environments in which minerals form. Compare the two.
Chapter 16: Mining and Mineral Resources SEV4. Students will understand and describe availability, allocation and conservation of energy and other resources.
Unit 2 Rocks and Minerals. Minerals: Occur naturally in the Earth Inorganic – not formed by living things Solid Crystal structure – atoms or molecules.
Physical Geology Mineral and Mining Resources. Ore Minerals  Minerals that are valuable and economical to extract are known as ore minerals  Minerals.
The Formation, Mining, and Use of Minerals
Copyright © 2008 Thomson Delmar Learning, a division of Thomson Learning, Inc. ALL RIGHTS RESERVED. Minerals, Rocks, and Mineral Resources Chapter 7.
Chapter 11 Resources & Energy.
Minerals. What is a mineral? A mineral occurs naturally, it’s inorganic, a solid that has crystal structure and definite chemical composition.
Properties of Minerals
Looking Back…. What do you remember about minerals? What are they?
Minerals, Rocks and Resources
Section 1: Minerals and Mineral Resources
Economic Geology.
Section 1: Minerals and Mineral Resources
Chapter 16 Ecology Section 1.
Geology Rocks! Minerals.
Minerals and Rocks Chapter 10.
Ch. 3 Minerals Earth Science.
Minerals.
Chapter 11 Resources and Energy
How to Use This Presentation
Formation, Mining, and Use of Minerals
Note Pack 39 Chapter 16 Mining and Mineral Resources
Objectives Define the term mineral.
7-1 Mineral Resources.
Section 1: Minerals and Mineral Resources
Ch. 4 Minerals Define a Mineral
Objectives Define the term mineral.
Section 1: Minerals and Mineral Resources
CHAPTER 16 - MINING.
Section 1: Minerals and Mineral Resources
Section 1: Mineral Resources
Chapter 11 Resources & Energy.
Chapter 9 – Minerals and Rocks
Economic Geology.
Mining and Mineral Resources
Section 1: Mineral Resources
Section 1: Minerals and Mineral Resources
Presentation transcript:

Section 1: Mineral Resources Preview Objectives Mineral Resources Ores Uses of Mineral Resources Mineral Exploration and Mining The Formation of Ores and Placer Deposits Comparing Metals, Nonmetals, and Metalloids

Objectives Explain what ores are and how they form. Identify four uses for mineral resources Summarize two ways humans obtain mineral resources

Mineral Resources Mineral resources can be either metals, such as gold, U, silver, Ag, and aluminum, Al, or nonmetals, such as sulfur, S, and quartz, SiO2. Metals can be identified by their shiny surfaces, as good conductors of heat and electricity, and they tend to bend easily when in thin sheets. Most nonmetals have a dull surface and are poor conductors of heat and electricity.

Ores Ores *. Metallic minerals such as gold, silver, and copper, Cu, are called native elements and can exist in Earth’s crust as nuggets of pure metals. Most other minerals in Earth’s crust are compounds of two or more elements.

Ores, continued Ores Formed by Cooling Magma Some ores, such as chromium, Cr; and nickel, Ni, form as the magma cools and the dense metallic minerals sink. As the minerals sink, layers of these minerals accumulate at the bottom of the magma chamber to form ore deposits. Ores Formed by Contact Metamorphism lode *.

Ores, continued Ores Formed by Contact Metamorphism, continued Heat and chemical reactions with hot fluids from the magma can change the composition of the surrounding rock. This process is called. Some ores, such as copper, Cu; and zinc, Zn, form by contact metamorphism. Contact metamorphism also occurs when hot fluids called hydrothermal solutions move through small cracks in a large mass of rock. When the minerals from the surrounding rock dissolve into the hydrothermal solution, new minerals will precipitate from the solution and form narrow zones of rocks called veins.

Ores, continued Ores Formed by Moving Water placer deposit * The movement of water helps to form ore deposits. Tiny fragments of native elements, such as gold, Au, are released from rock as it breaks down by weathering. Streams carry the fragments until the currents become too weak to carry these dense metals, which collect in placer deposits.

Uses of Mineral Resources gemstones * Metallic ores are sources of valuable minerals and elements, like gold, Au, platinum, Pt, and silver, Ag. Some nonmetallic minerals display extraordinary brilliance and color when they are specially cut for jewelry. Other nonmetallic minerals, such as calcite and gypsum, are used as building materials.

Mineral Exploration and Mining During mineral exploration, people search for mineral deposits by studying local geology. Exploration teams also collect and test rock samples to determine whether the rock contains enough metals to make a mine profitable. Airplanes that carry special equipment are used to measure and identify patterns in magnetism, gravity, radioactivity, and rock color.

Mineral Exploration and Mining, continued Subsurface Mining Subsurface mining mines for minerals located below Earth’s surface Surface Mining Surface mining strips overlying rock material to reveal mineral deposits that are located close to Earth’s surface. Placer Mining Placer mining scoop up and separate the sediment from placer deposits to search for minerals. Undersea Mining Nodules are lumps of minerals on the deep ocean floor. However, because of their location, these deposits are difficult to mine.

The Formation of Ores and Placer Deposits The diagram below shows how ores form in placer deposits.