METAMORPHIC ROCKS

Aim: How do we classify and evaluate metamorphic rocks? 

Learning Target: I CAN explain how metamorphic rocks are formed and on

what basis they are classified

AIM & LEARNING TARGET

Open your Reference Tables to the Rock Cycle. Looking at the Metamorphic Rock Chart try to fi ll in the chart below

DO NOW

DO NOW CHECK:

Read the following statement:Your family goes hiking up Bear Mountain. On

your way up the mountain you stop and pick up 3 rocks. You tell your family that they are all metamorphic rocks based on the layers and stripping that they show. Thumbs up you agree Thumbs down you disagree

When any type of rock (sedimentary, metamorphic, igneous) undergoes

METAMORPHISM (subjected to heat and pressure) forms a metamorphic rock.

METAMORPHIC ROCK

Contact(heat)

Magma/lava will hit into the rock, causing it to change into a metamorphic rock

Regional(pressure)

Layers of rock on top cause pressure to build up metamorphism

TWO TYPES OF METAMORPHISMCONTACT AND REGIONAL

Foliation & Banding wavy bands of dark and light minerals

Ex – Gneiss Mineral Alignment – interlocking crystals

CHARACTERISTICS OF METAMORPHIC ROCK

Page 7.What does it tell us about metamorphic rocks?How does marble form?

WHAT PG OF THE REF TABLE CAN YOU FIND THE SCHEME FOR

METAMORPHIC ROCK IDENTIFICATION?

A lot of these questions come straight from the Regents.

For Tonight’s HW, use the classifi cation schemes. HW is 1-13

FOR THE CLASSWORK QUESTIONS YOU HAVE

TO USE THE ROCK CYCLE.