MineralsMagma - Origins of Rocks: Where do rocks come from?...

Info iconThis preview shows pages 1–12. Sign up to view the full content.

View Full Document Right Arrow Icon
Origins of Rocks: Where do rocks come from? Why do they form? How do they form? (Mineralology and Petrology) (L2 & L3)
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
What is a What is a rock rock ? ? A naturally-occurring aggregate of minerals CD: EM/A,B
Background image of page 2
What is a Mineral ? A naturally occurring, inorganic, crystalline solid with a specific chemical composition A specific chemical composition means that the composition of a mineral can be expressed as a chemical formula Example: halite (salt) is NaCl
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Identify Minerals by Their Physical Properties [See CD: Earth Materials] Crystal Habit Cleavage & Fracture * Striations Hardness Specific Gravity Color Streak Luster Acid Test
Background image of page 4
What is a Crystal ? A form of matter which has a regular , repeating framework of atoms
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Halite (salt) crystals (NaCl)
Background image of page 6
What are atoms ? [CD:Slides 1094-1105 in Geo Time] The smallest unit of an element that retains the element’s physical and chemical properties An element is a substance that cannot be broken down into a simpler substance Made up of protons , neutrons and electrons examples: gold, iron, hydrogen, oxygen, sodium, chlorine, carbon, silicon, helium
Background image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Protons have positive charge & mass of 1 Neutrons Protons and neutrons make up the nucleus of an atom Electrons have a negative charge, NO mass and are most important for chemical reactions Protons, Neutrons, Electrons Protons, Neutrons, Electrons
Background image of page 8
Structure of an Atom Protons +/1 Neutrons 0/1 Electrons -/0
Background image of page 9

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
IONS IONS +/- CHARGED ATOMS FORMERLY NEUTRAL ATOMS WHICH HAVE GIVEN UP (+) OR TAKEN ON AN ELECTRON (-) INVOLVED IN IONIC BONDING ISOTOPES ELEMENTS WITH VARIABLE ATOMIC WEIGHT DUE TO VARYING NUMBERS OF NEUTRONS IN THE NUCLEUS.
Background image of page 10
Hydrogen atom: Mass = 2 1 proton, 1 electron Carbon atom: Mass = 12 6 protons, 6 neutrons, 6 electrons Electrons move in orbitals (not “orbits!”) forming shell-like spheres around the nucleus. ** If atoms loose or gain electrons they have an
Background image of page 11

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 12
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 04/20/2011 for the course GG 103 taught by Professor Herrero-bervera during the Summer '10 term at University of Hawaii, Manoa.

Page1 / 51

MineralsMagma - Origins of Rocks: Where do rocks come from?...

This preview shows document pages 1 - 12. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online