1. I. FORMATION OF METAMORPHIC ROCKS:

3. A metamorphic rock is one whose original form has been __________
changed

4. BY________ AND _____________
HEAT
BY________ AND _____________
PRESSURE

5. THIS ALTERATION IS CALLED _____________
RE-CRYSTALLIZATION

6. These changes are NOT caused by
MELTING

7. If the rock melted and cooled it would be an _____________
IGNEOUS ROCK

8. 1. Changes caused by _____________
RE-CRYSTALLIZATION
(again)

9. May include the creation and growth of ________________________
NEW MINERAL
CRYSTALS

10. Compressed metamorphic
2. Rocks which are intensely __________ can also become ____________ rock
metamorphic

13. MAKING IT MORE DENSE AND RESISTANT TO WEATHERING

14. The growth of new minerals may cause the rock to appear
BANDED

15. foliated
OR STRIPES OF
LIGHT
DARK
MINERALS

16. pressure
pressure
pressure

17. SCHIST SHOWS BANDING

19. It can also ____________ (BEND) OR ______________ ORIGINAL STRUCTURES
DISTORT
It can also ____________ (BEND) OR ______________ ORIGINAL STRUCTURES
DESTROY

23. 3. There are two types of Metamorphism:
Regional A. B.
Contact

24. A.Regional metamorphism:
occurs over large areas
with extreme pressures &
temperatures

25. Photograph of regional metamorphism
New York State
thruway

27. This extreme heat and pressure is what builds
MOUNTAINS

28. B. CONTACT METAMORPHISM

29. DOES NOT ZONE BUT _____________ MELT IT IS THE _________ OF
CONTACT WHERE AN
IGNEOUS INTRUSION
MEETS THE
EXISTING ROCK
BUT _____________
MELT IT
ZONE
DOES NOT

30. occurs only at the place where the magma contacts rock
Contact metamorphism
occurs only at the place
where the magma contacts rock
SHALE
SANDSTONE
LIMESTONE
IGNEOUS
INTRUSION
SANDSTONE

31. IGNEOUS
Any kind of rock:
SEDIMENTARY
METAMORPHIC

32. TO FORM METAMORPHIC ROCK.
CAN UNDERGO
RE-CRYSTALLIZATION
TO FORM METAMORPHIC ROCK.

33. PARENT ROCK
Is rock from
which metamorphic
rock is formed.

34. Limestone
metamorphoses to
become
_________________
marble

35. Sandstone
metamorphoses to
become
_________________
quartzite

36. Shale
metamorphoses to
become
_________________
slate

37. Granite
metamorphoses to
become
_________________
gneiss

38. We will not
find fossils in
Metamorphic rock
because:

39. All traces of fossils have been recrystallized

40. TIME TO WORK ON THE LAB