METAMORPHIC ROCKS

GROUP
5
 MEMBERS
CALINISAN, RYAN
BANG GALINDEZ, A
DURIAN
LINATOC, AN-PANGIT LOVELY JAEJEMON
MERCADO, BE A FRANC INOMOTO
PUJANTE, RANDELICIOUS MWA MWA C
UP RUPAN, ANNAP KA ROSELLE
TITULAR, VON-C ON LUGI
 I ICC
BBRREEAAk
PRACTICE
PRACTICE

ANSWER:

the 4th
picture
has a cone
QUESTION 1
QUESTION 1
ANSWER:

nasa loob ng bahay

yung 4th pic
QUESTION 2
QUESTION 2
ANSWER:

pinaka orange yung

pang 2nd pic
QUESTION 3
QUESTION 3
ANSWER:

naka plastic yung

third
QUESTION
4
QUESTION 4
ANSWER:

may bubbles yung 4th

pic
DEFINITION
METAMORPHIC DEFINITION
ROCKS
Metamorphic
rocks form from
heat and pressure
changing the
original or parent
rock into a
completely new
rock
DEFINITION METAMORPHIC
ROCK
The word metamorphic
comes from the Greek
word
“metamorphoun”, "to
transform," is from
meta, "change," and
morphe, "form"
PROCESS
RECAP NG
WEATHERING &
LI EROSION
OO
C IGNEROUS
NG ROCK
TI
L

ME

RE
SU
ES
MAGM SEDIMENT

PR
&
A

AT
&

HE
ING COMPACTION &
R
E N
MELTING A
H
T SIO CEMENTATION
E
W ERO

HEA
T &P
RES SURE

METAMORPHIC SEDIMENTARY
ROCK ROCK
PROCESS
CONTACT
METAMORPHISM
Contact
metamorphism occurs when magma
contacts an existing rock body, raising
its temperature and infiltrating it with
magma fluids. The affected area is
typically small, ranging from 1 to 10
kilometers. This process produces non-
foliated rocks like marble, quartzite,
and hornfels.
PROCESS
REGIONAL
METAMORPHISM
Includes any metamorphic process that
occurs over a large region. It is
therefore the most widespread and
common type of metamorphism
PROCESS
DYNAMIC
METAMORPHISM
This is the result of very high shear
stress, such as occurs along fault
zones. These huge forces of heat and
pressure cause the rocks to be bent,
folded, crushed, flattened, and
sheared.
P
R
O
C
E
S
S
 2 CATEGORIES OF
METAMORPHIC ROCKS:
F F
O O
l l
N
I I
O
A A
N
T T
E E
S S
CATEGORIES FOLIATES
- The term "foliate" originates
from the Latin word that means
sheets, symbolizing the layered
structure of
these rocks.
- Foliates are characterized
by abundant micas and chlorites,
minerals with well-defined
cleavage
planes.
- Examples of foliate
metamorphic rocks include slate,
gneiss, schist, etc. each exhibiting
unique patterns and
textures.
CATEGORIES NON-FOLIATES
- Non-foliated metamorphic
rocks lack cleavage,
presenting a uniform
and compact
appearance.
- The absence of cleavage
in non-foliated rocks results
from mineral recrystallization
occurring without directional
stress.
- Quartzite and marble
are prominent examples of
non- foliated metamorphic
rocks, showcasing
distinctive properties and
compositions.
PROPERTIES
P
R TEXTURE
Foliated
O Texture: Metamorphic rocks
P with a layered or banded
appearance due to the
E parallel alignment of
R mineral grains under
T directed
pressure.
I Examples: slate, schist,
E and
gneiss.
S
P
R TEXTURE
O
Non-Foliated
P Texture: Metamorphic rocks
E without a banded appearance,
typically formed under
R uniform pressure
T conditions.
I Examples: marble and
quartzite.
E
S
P MINERAL COMPOSITION
R Metamorphic rocks
O have minerals that can
handle extreme heat and
P pressure. These minerals
E often change into new
types that weren't there
R before. Some common
T minerals in these rocks are
garnet, kyanite, and
I staurolite. Also, during
E metamorphism, new
minerals can form, taking
S the place of the ones from
P
R GRAIN SIZE
O
The size of the mineral grains
P in the rock can range from very
E fine to coarse. Grain size tends
to increase with higher levels of
R metamorphism (more heat and
T pressure).
I
E
S
P
R DENSITY
O
Metamorphic rocks are
P generally denser than the
E original rocks because the
minerals are packed more
R tightly together due to high
T pressure.
I
E
S
P
R HARDNESS
O
Metamorphic rocks
P become tougher and
E stronger than the
R original rocks they formed
from.
T
I
E
S
P
R POROSITY AND
O PERMEABILITY
P Metamorphic rocks have
E low porosity and permeability
because recrystallization
R reduces the spaces between
T mineral
grains.
I
E
S
P
R CHEMICAL STABILITY
O
The minerals in
P metamorphic rocks are
E stable under the conditions
R they formed in, which
makes these rocks more
T resistant to weathering and
I erosion than the original
rocks.
E
S
P
R PARENT ROCK
O INFLUENCE
P
E The type of rock
that metamorphic rock
R starts from, called the
T protolith, affects its
properties.
I
E
S
EXAMPLES OF
METAMORPHIC ROCKS
FOLIATES NON-FOLIATES
FOLIATED
METAMORPHIC
ROCKS

EXAMPLES
 FOLIATES
SLATE
CHARACTERISTICS: SMOOTH,
DARK BLACK, GRAY, OR
GREENISH-GRAY
NOTABLE FEATURES:
POSSESS “FISSILITY”: THE
ABILITY TO BREAK
INTO THIN SHEETS OF
ROCK
LOW-GRADE
 FOLIATES
PHYLLIT
E CHARACTERISTICS:
FINE-GRAINED, GLITTERED, DARK-
COLORED, LUSTROUS, & WRINKLED
NOTABLE FEATURES:
CONTAIN FINE-GRAINED
MICAS AND GRAPHITE,
GIVING IT “SHEEN”:
SILKY
LOW TO MEDIUM /SHINY -
GRADE “PHYLLITIC
 FOLIATES
SCHIST
CHARACTERISTICS:
METALLIC SHEEN, COURSE-
GRAINED TEXTURE
NOTABLE FEATURES:
POSSESS ROCK
“SCHISTOSITY”:
ALLOWING ROCKS TO BE
MEDIUM CLEAVED. IT HAS VISIBLE
GRADE AND REFLECTIVE MICA
 FOLIATES
GNEISS
CHARACTERISTICS:
LIGHT-DARK LAYERED
BANDS
NOTABLE FEATURES:
CONTAIN LAYERS OF LIGHT
AND DARK-COLORED
MINERALS THAT GIVE THE
HIGH-GRADE ROCK FOLIATION CALLED
“GNEISSIC BANDING”
NON-FOLIATED
METAMORPHIC
ROCKS

EXAMPLES
 NON-FOLIATES
MARBL
E CHARACTERISTICS: SMOOTH,
UNIFORM COLOR,
WHITE/LIGHT SHADES
NOTABLE FEATURES:
COMMONLY LIMESTONES
OR DOLOSTONES WITH
EQUIGRANULAR CALCITE
CRYSTALS
 NON-FOLIATES
QUARTZITES
CHARACTERISTICS:
LIGHT-COLORED, GRANULAR
TEXTURE
NOTABLE FEATURES:
FORMED FROM
METAMORPHOSED
SANDSTONE WITH
CONCHOIDAL FRACTURE
 NON-FOLIATES
HORNFELS &
GREENSTONES
C
H
A
R
A
C
T
E
R
I
 NON-FOLIATES
AMPHIBOLITES
CHARACTERISTICS:
DARK-COLORED, MEDIUM-
COARSE GRAINED TEXTURE
NOTABLE FEATURES:
NONDESCRIPT HOMOGENOUS
APPEARANCE AND CAN BE
FOLIATED OR NON-FOLIATED
 NON-FOLIATES
ANTHRACITE
CHARACTERISTICS:
DEEP BLACK COLOR, HIGH
LUSTER, HARD AND COMPACT
NOTABLE FEATURES:
A METAMORPHOSED COAL
CONTAINING GRAPHITE. IT
CONTAINS THE HIGHEST
CARBON CONTENT AMONG
ALL COAL TYPES
IMPORTANCE/APPLICATIONS
FOLIATES NON-FOLIATES
APPLICATIONS C
O A
N R
S T
T A S
R R
U C &
C & H
I
T D
I T
E E
O S
N C
T I
U G
R N
E
THANK YOU!
 METAMORPHIC ROCKS - GEOLOGY (U.S. NATIONAL

REFERENCES PARK SERVICE). (N.D.).

HTTPS://WWW.NPS.GOV/SUBJECTS/GEOLOGY/METAMORP
HIC.HTM#:~:TEXT=TYPES%20OF%20NON%2DFOLIATED%2
METAMORPHIC ROCKS - GEOLOGY (U.S. NATIONAL
PARK SERVICE). (N.D.). 0METAMORPHIC,INCLUDE%20MARBLE%2C%20QUARTZITE
%20AND%20HORNFELS.
HTTPS://WWW.NPS.GOV/SUBJECTS/GEOLOGY/METAMOR
MUKHERJEE, S. (2023, FEBRUARY 2). METAMORPHIC
PHIC.HTM#:~:TEXT=TYPES%20OF%20NON%2DFOLIATED%
ROCKS – DEFINITION, FORMATION, TYPES, &
20METAMORPHIC,INCLUDE%20MARBLE%2C%20QUARTZI
EXAMPLES. SCIENCE FACTS. HTTPS://
TE%20AND%20HORNFELS. WWW.SCIENCEFACTS.NET/METAMORPHIC- ROCKS.HTML?
FBCLID=IWZXH0BGNHZW0CMTAAAR1Q-
NW9UISF1P5MAVID6OOLLI1AYI4OSOBWEC8REWEPXMNO
MRSE-
JHTSBI_AEM_AUDLCBM9OKHF53K2EFLSAO_5FPPXYSA83E
VH4VP2O4K1C-
YNSLSZIQ2R3HLT39DKOUEGBS8AGQDPQ98CPVP4MCPE

ADMIN. (2022, MAY 11). METAMORPHIC ROCKS |

TYPES AND PROPERTIES OF METAMORPHIC ROCKS.
BYJUS.
HTTPS://BYJUS.COM/PHYSICS/METAMORPHIC-ROCKS/

METAMORPHIC ROCK FEATURES LIST. (N.D.).

HTTPS://
WWW.SCIENCE.SMITH.EDU/~JBRADY/PETROLOGY
/ROCK-LIBRARY/ROCK-FEATURES/METFEATURES-
LIST.PHP
REFERENCES METAMORPHIC ROCKS LESSON #14. (2018,
DECEMBER
10). VOLCANO WORLD.
HTTPS://VOLCANO.OREGONSTATE.EDU/METAMORPHIC-
METAMORPHIC ROCKS LESSON #14. (2018B,
ROCKS-LESSON-14?FBCLID=IWAR3RJA-
DECEMBER 10). VOLCANO WORLD.
FE8A7PY2QEH0CPM6LAISLWDONJ4WOY90ALKEWPKW
HTTPS://VOLCANO.OREGONSTATE.EDU/METAMORPHIC-
UYKILIQ695XM#:~:TEXT=METAMORPHIC%20ROCKS%20
ROCKS-LESSON-14?FBCLID=IWAR0GQITVWAWVQP-Y-
ARE%20DIVIDED%20INTO,THAT%20MAKE%20UP%20TH
XQTM1MPJPK51QXJSHZKJ0W2X_QWKBSENFOQTRDM7K
E%20ROCK
E#:~:TEXT=METAMORPHIC%20ROCKS%20ARE%20DIVIDE
D%20INTO,THAT%20MAKE%20UP%20THE%20ROCK

WHAT ARE METAMORPHIC ROCKS? | U.S.

GEOLOGICAL SURVEY. (2017, MARCH 23).
HTTPS://WWW.USGS.GOV/FAQS/WHAT-ARE-
METAMORPHIC-ROCKS

10 DIFFERENT KINDS OF METAMORPHIC ROCKS –

OPEN PETROLOGY. (N.D.).
HTTPS://OPENGEOLOGY.ORG/PETROLOGY/10-
METAMORPHIC-FABRICS/

SELVERSTONE, J., & FYFE, W. S. (2024, MAY 15).

METAMORPHIC ROCK | DEFINITION, FORMATION, &
FACTS. ENCYCLOPEDIA BRITANNICA. HTTPS://
WWW.BRITANNICA.COM/SCIENCE/METAMORPH IC-ROCK