OU-SEG Student Chapter GeoTrivia

Which of the following minerals has the lowest hardness grade in the Mohs' scale?

• Topaz

• Fluorite

• Apatite

• Feldespar

The Hawaiian Islands are an example of volcanoes that formed directly above a mantle plume, creating a type of feature at the Earth's surface called a:

• Convection cell

• Hot spot

• Subduction zone

• Mid-ocean ridge

The densest type of crust has a density of about 3 g/cm3. What type of crust is this?

• Continental

• Oceanic

• Lithosferic

• All crustal rocks have the same density

Which layer of the Earth is characterized by convection currents that drive plate tectonics?

• Lithosphere

• Asthenosphere

• Mesosphere

• Outer core

Which of these rock types has the largest grain/crystal size?

• Basalt

• Dacite

• Rhyolite

• Diorite

In seismic data, igneous bodies are sometimes misinterpreted to be:

• Gas charged sands

• Carbonate mounds

• Sinuous channels

• All of the above

Two polymorphs or Carbon are:

• Diamond and graphite

• Graphite and pyrite

• Diamond and quartz

• Graphite and lead

In Bowen's Reaction Series, the very first mineral to crystallize in the discontinuous branch is:

• Biotite

• Plagioclase feldespar

• Pyroxene

• Olivine

This is an example of what type of fault?

• Reverse

• Normal

• Condensed

• Strike-slip

According to the International Chronostratigraphic Chart, the Zanclean Age is part of which Epoch

• Pliocene

• Eocene

• Miocene

• Paleocene