Classifying Rocks
Geologists classify rocks into 3 major groups
What is igneous, sedimentary, and metamorphic
Igneous rock that formed from magma and cooled very slowly UNDERNEATH the earth's surface is called ________.
What is intrusive rock
These small pieces or particles make up sedimentary rock. They can be parts of other rocks, plants, and animal.
What is sediment
Minerals are squeezed under pressure and arranged in way layers or bands.
What is foliated?
Magma cools and crystallizes in the cycle forming _______ rock
What is igneous rock
Molten rock above the surface.
Lava
The symbol for oxygen.
O
The type of rock that forms from magma or lava cooling
What is igneous rock
What is water content and pressure?
Mineral growth that binds sediments together.
What is lithificaiton?
Rocks that form with blocky crystals minerals.
What is nonfoliated?
Transporting sediments by wind, water, gravity, or glaciers.
What is erosion
Two characteristics of igneous rock that make good building materials.
What are interlocking grain texture and resistant to weathering?
How does metamorphic rock form?
Heat and Pressure
This is classified by basaltic, andestic, and rhyolitic.
What are classifications of magma?
What is magma?
Horizontal layering of sediments.
What is bedding?
A term that describes a metamorphic rock with banded layers.
What is foliated?
The layers of sediment become pressed together over time
What is compaction
Why do intrusive igneous rocks have large crystals?
They cool slowly.
The percentage of space between grains.
What is porosity?
Lava cooling and crystallizing on the surface of the Earth?
What is extrusive rock?
What is silica?
Particles and mineral fragments from weathering and erosion.
What is clastic?
The texture of a metamorphic rock that does NOT show banded layers.
What is non-foliated
Rock Cycle
The mose abundant and calcite rich rock.
What is limestone?
Sediments moved by landslides, water, ice or wind?
What is erosion?
Igneous rock cools very quickly. What would be the texture of an igneous rock that cools quickly?
Glassy or Fine Grained.
A series that illustrate how different minerals melt and crystallize at different temperatures.
What is Bowen's reaction series?
The process that breaks rocks down into sediments.
What is weathering?
What is evaporite?
The processes by which sediments become sedimentary rocks
compaction or cementation
These rocks are identified by texture, mineral composition and crystal size.
What are igneous rocks?
A rock that has high porosity, fluids can move freely and makes up underground reservoirs for oil, natural gas and ground water.
What is sandstone?