Igneous Rocks
What type of rock is basalt and obsidian?
Fine-grained igneous rocks
What type of rock is chalk?
Organic non clastic sedimentary rock
What type of rock is marble?
Non foliated metamorphic rock
Which sedimentary rocks have the biggest clasts?
Conglomerate rocks
What type of rock is gabbro?
Coarse-grained igneous rocks
What type of rock is halite?
Inorganic non clastic sedimentary rock
What is petrology?
The study of rocks
Which type of sedimentary rock is formed from the precipitation of table salt?
Halite
Large crystals
Fast rivers
What are metamorphic rocks formed from?
Igneous, sedimentary, and metamorphic rocks
How do we know that a body of water is saturated?
No more material can be dissolved in the water.
How do old earth scientists view the formation of igneous rocks?
Igneous rocks originates from magma cooling millions of years ago.
In the formation of sedimentary rocks, which step is between deposition and cementation?
Compaction
What is the difference between foliated and non foliated metamorphic rock?
Foliated metamorphic - have flat mineral crystals arranged in parallel layers
Non foliated metamorphic - do not have bands or sheets
How do young earth scientists view the rock cycle?
Rocks were not meant to go through all three types of rocks. All igneous rocks came directly from the magma.
List the three factors that affects the grain size of igneous rocks.
The rate of cooling
Composition of the magma
Temperature and pressure
How do young-earth scientists view the formation of sedimentary rocks?
Sedimentary rocks were formed very quickly during the the flood
Describe regional, contact, and dynamic metamorphism.
Regional - changes in rocks over vast areas
Contact - occurs in small areas
Dynamic - rapid changes in rocks due to pressure and heat
List three issues with the old-earth view of the rock cycle.
Often, igneous rocks will melt right away
Many rocks are too far away from the mantle to melt.
NOt enough time for this to happen