The document discusses the three main types of rocks: igneous, sedimentary, and metamorphic. It provides examples of different rocks for each classification, including granite, basalt, limestone, and slate. It also notes some of the human uses of rocks, such as using marble to construct the Taj Mahal and slate for stairways and roofs.

1. stone
kardan university
uploaded by:
Engr.Ahmad
Sameer

2. Rocks

3. Contents of the slide
• Introduction
• Rock classification
– Igneous rocks
– Sedimentary rocks
– Metamorphic rocks
• Human use of rocks
• Question and Answers

4. Rock Classification
• Igneous,
• Sedimentary,
• Metamorphic.

5. Igneous rocks
Close-up of granite
Various granites
(cut and polished surfaces)
Specimen of highly porous pumice
An active basalt lava flow
Plutonic or intrusive rocks Volcanic or extrusive

6. Columnar jointed basalt in
Turkey

7. the porous nature of pumice
rock in detail

8. Sedimentary rocks
marginal marine sequence of siltstones (below) and lime stones (above)
(southwestern Utah, USA)

9. Sedimentary rocks
Claystone deposited in
(Glacial Lake Missoula, Montana, USA)
carved out of the surrounding
sandstone by both mechanical
weathering and chemical weathering.
(southwestern Arizona, USA)

10. Metamorphic rocks
Gneiss Rock Slate Rock used in roof Schist Rock
Slate RockQuartzite Marble

11. Human use of rocks

12. Human use of rocks
The Taj Mahal is
made of marble
A stair way made of rock

13. Thank You
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