rock identification l.
Download
Skip this Video
Loading SlideShow in 5 Seconds..
Rock identification PowerPoint Presentation
Download Presentation
Rock identification

Loading in 2 Seconds...

play fullscreen
1 / 28

Rock identification - PowerPoint PPT Presentation


  • 301 Views
  • Uploaded on

Rock identification. Liz LaRosa http://www.middleschoolscience.com 2009. What type of rock is this? Where or how is it formed?. Marble. Metamorphic Non-Foliated Calcium Carbonate Metamorphism of Limestone. What type of rock is this? Where or how is it formed?. Image Source. Limestone.

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'Rock identification' - afric


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
rock identification

Rock identification

Liz LaRosa

http://www.middleschoolscience.com 2009

marble
Marble
  • Metamorphic
  • Non-Foliated
  • Calcium Carbonate
  • Metamorphism of Limestone
limestone
Limestone
  • Sedimentary
  • Calcium Carbonate
  • Forms in clear, warm, shallow marine waters
  • Forms from the accumulation of shell, coral, algal and fecal debris
granite
Granite
  • Intrusive Igneous Rock
  • Most are Felsic
  • Coarse Grained, can see crystals
  • Contains quartz and feldspar
gneiss
Gneiss
  • Metamorphic
  • Foliated
  • Feldspar
slide11
Coal
  • Organic Sedimentary Rock
  • Formed from plant remains
obsidian
Obsidian
  • Extrusive Igneous Rock
  • Very quick cooling molten rock (lava)
  • Glassy
  • No crystals formed
sandstone
Sandstone
  • Sedimentary Rock
  • Formed by the action of wind, water, and ice on older rock
  • Quartz cemented by silica or lime
  • Most form in shallow seas
pumice
Pumice
  • Felsic Extrusive Igneous Rock
  • Quick cooling molten rock (lava)
  • No crystals formed
  • Many holes formed - gasses released
  • Floats on water
scoria
Scoria
  • Mafic Extrusive Igneous Rock
  • Forms as a frothy crust on the top of a lava flow or as material ejected from a volcanic vent and solidifying while airborne
  • No crystals formed
  • Many holes formed - gasses released
basalt
Basalt
  • Mafic Extrusive Igneous Rock
  • Formed from dark dense lava
  • Pyroxene, plagioclase feldspar
  • Fine grained
slate
Slate
  • Foliated Metamorphic Rock
  • Metamorphism of Shale
  • Breaks into thin “slices”
hornfels
Hornfels
  • Non-Foliated Metamorphic Rock
  • Fine grained crystals
  • Metamorphism of clays or shales
conglomerate
Conglomerate
  • Sedimentary Rock
  • Rounded pebbles ¼ inch or larger cemented together
  • Formed near moving water
  • Quartz, quartzite
review
Review

Can you compare and contrast the following sets of rocks?

  • Limestone and Marble
  • Granite and Gneiss
  • Obsidian and Coal
  • Sandstone, Pumice, and Scoria
  • Basalt, Hornfels, and Slate
  • Conglomerate and all the other rocks