Rocks
This sedimentary rock forms when plant matter is cemented into peat.
What is Coal?
A better name for the fizzing reaction between HCl and CaCO3.
What is Effervescence?
This tabular sheet intrusion is known by its pancake-like shape.
What is a sill?
This is the most famous fault line in California.
What is the San Andreas Fault?
This famous fossil find shows traits of both birds and dinosaurs.
What is Archaeopteryx?
This extrusive igneous rock forms from silica-rich magma that cools relatively quickly during eruption.
What is Rhyolite?
Halite and sylvite have this taste in common.
What is saltiness?
The ductile layer beneath the rigid lithosphere.
What is the Aesthenosphere?
The name of the crater caused by an asteroid during the end-Cretaceous (KPg) extinction event.
What is Chicxulub Crater?
The longest mountain range on our planet.
What is the Mid-Ocean Ridge?
This is the highest grade metamorphic rock.
What is Gneiss?
Ruby and Sapphire are the gem varieties of this hard mineral.
What is Corundum?
P-waves travel through this layer of the Earth, but S-waves can’t.
What is the Outer Core?
In 1991, this volcano in the Philippines produced the 2nd largest eruption of the 20th century.
What is Mount Pinatubo?
The name for the huge gap in geologic time that can be observed around the world.
What is The Great Unconformity?
This fining-upwards sedimentary sequence forms from turbidity currents.
What is a Bouma Sequence?
A mineral polymorph is one that shares this characteristic with another mineral, but has a different structure.
What is Chemical Composition?
The temperature of basalt in the mantle.
What is 1200C?
What is the driest place on Earth? Think twice.
What are the McMurdo Dry Valleys in Antarctica?
The optical phenomenon in which a substance has different colors when positioned at different angles.
What is Pleochroism?
This type of rock makes up polygonal columns of Devils Tower in Wyoming.
What is (columnar) Basalt?
The hardest object on the Mohs Hardness Scale that can be scratched by Quartz.
What is a steel nail?
This term refers to a long-standing debate of how large volumes of magma are emplaced in the crust.
What is the Space Problem?
The largest oceanic plateau, which is roughly the size of Alaska.
What is Ontong Java?
This man is known as the "Father of Modern Geology".
Who is James Hutton?