Interludes A, B, C
A coherent, naturally occurring solid, consisting of an aggregate of minerals or glass.
What is a rock?
Molten rock beneath the Earths surface.
What is magma?
Molten rock at the Earths surface.
What is lava?
Classes of sedimentary rock.
What are clastic, biochemical, organic and chemical?
Main agents of metamorphism.
What is heat and pressure?
Frost wedging, root wedging, thermal expansion, exfoliation, etc.
What is physical weathering?
Coarse grained texture.
What is phaneritic?
Resistance to flow.
What is viscosity?
Processes associated with lithification.
What is compaction and cementation?
Two classes of metamorphic rocks.
What are foliated and non-foliated?
Dissolution, oxidation, hydrolysis
What is chemical weathering?
Melting due to the change in pressure.
What is decompression melting?
Lowest viscosity lava flow.
What is a basaltic lava?
Precipitation of sedimentary rock due to the evaporation of water.
What is a chemical sedimentary rock?
Pressure or stress that is not equal in all directions, usually associated with mountain building.
What is differential stress (pressure)?
Progressive transformation of Earth materials between igneous, sedimentary and metamorphic rocks.
What is the rock cycle?
Plate boundaries associated with igneous activity.
What are convergent and divergent boundaries?
Lava type associated with subduction and composite or strato volcanoes.
What is andesitic lava?
Highest energy terrestrial sedimentary environment resulting in the production of till.
What is a glacial environment?
Metamorphosed rocks near the edge of a magma chamber
What are hornfels or the contact (metamorphic) aureole?
Rock or sediment that has been modified by physical and chemical interactions with organic material, rainwater, and organisms over time.
What is soil?
Sequence of minerals that form from a cooling magma or melt from a melting rock.
What is Bowen's reaction series?
Hazards associated with volcanoes (must have 3 of those listed).
What are Lava/pyroclastic flows, ash (pyroclasitic debris), landslides/lahars, earthquakes/tsunamis, dangerous gases?
Indicators of maturity (increased transport)
What is well-rounded and well-sorted?
Metamorphism associated with mountain building.
What is regional (dynamothermal) metamorphism?