Geology Flashcards
What are the four main subsystems that make up our planet.
Atmosphere, geosphere, hydrosphere, biosphere
What is the atmosphere?
Meaning air, is all the gases that surround the earth
What is the biosphere?
Meaning life, is made up of all the living things on earth
What is the geosphere?
Meaning earth, is the part of the earth that includes rocks and minerals
What is the hydrosphere?
Meaning water, includes all water found on earth
What are the four layers of the earth?
Inner core, outer core, mantle, and crust
How many major tectonic plates are there?
7
What is the cycle for convection currents?
- Particles heat up 2. Particles move with more energy 3. Particles less dense-lighter so they rise 4. When they rise to the top they cool down-more dense 5. Fall to the bottom 6. Become dense
What is divergent, convergent, subduction, and transform
Divergent = pull apart, convergent = push together, subduction = push under, transform = slide past earthquakes
How is a volcano formed?
One plate subducts, allowing some mantle to seep up to the crust and form a magma chamber
What are the parts of a volcano?
Magma chamber, magma, main vent, secondary vent, lava, ash, crater, layers of lava and ash
What are the three rocks in the rock cycle?
Metamorphic rocks, sedimentary rocks, igneous rocks
