Download Unit 3 Geochemical Cycles in the Earth`s System

Survey
yes no Was this document useful for you?
   Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Document related concepts

Geophysics wikipedia, lookup

Age of the Earth wikipedia, lookup

History of geology wikipedia, lookup

Large igneous province wikipedia, lookup

Algoman orogeny wikipedia, lookup

Ore genesis wikipedia, lookup

Tectonic–climatic interaction wikipedia, lookup

Basalt wikipedia, lookup

Sedimentary rock wikipedia, lookup

Igneous rock wikipedia, lookup

Clastic rock wikipedia, lookup

Weathering wikipedia, lookup

Geology of Great Britain wikipedia, lookup

Transcript
Unit 3 Geochemical Cycles in
the Earth’s System
Chapters 10 and 11
3 types of rocks
• 1. _________ – formed from magma
• 2. __________ – made up of sediment
that has been compacted
• 3. ___________ – rock that has been
exposed to heat and pressure
Rock Cycle
• See page 177
Igneous Rocks
• __________ cools and hardens
• ____________ – slow cooling below crust,
________ crystals
• __________ – fast cooling on earth’s
surface, _______ crystals
• ___________ – combo of small and large
crystals
Felsic vs. Mafic
•
•
•
•
•
•
_______
______ in silica
_______colored
Intrusive
______grained (large)
Granite family
• _______
• _____ in silica, high
iron
• ______ colored
• ________
• _____ grained (small)
• Basalt family
Igneous Rock Structures
• See page 181
• ________ = batholiths, stock, laccoliths,
sill, dike
• _________= volcanic neck, lava plateau
Sedimentary Rocks
• __________ – compacted fragments
• Ex: __________ (smooth) and
________(sharp fragments)
• __________ – minerals dissolved in water
• Ex: Evaporites
• __________– remains of organisms
• Ex: Coal
Sedimentary Rock Features
• Stratification – layers
• ________ ________ and mud cracks –
water
• _________– preserved within
• __________ – minerals precipitated from
solutions build up in lumps within
Metamorphic Rock
• Change due to ______ or ________
• ________– small area, changed rocks
which directly contact the heat or pressure
• ________ – larger area ex: tectonic mv’t
Classification of Metamorphic
Rocks
• __________ – visible parallel bands
• _________ __________, minerals of
different densities separate
• Slate, schist, gneiss (page 188)
• ____________ – no bands or crystals
• __________ so tightly, no ________
visible
• Quartzite, marble (page189)
Ores
• Deposits of _________ from which metals
and nonmetals can be ________ profitably
• Types: Iron, Chromium, Nickel, Lead,
Copper, Zinc
Formation of Ores
•
•
•
•
•
Form within cooling ________
Form from _________metamorphism
_______ – mineral solutions in cracks
________ – large number of veins
______ deposits – concentrated at bottom
of stream beds due to water mv’t
Uses of Ores
•
•
•
•
•
_______ materials
Jewelry
________
Food
Page 197
Fossil Fuels
• Organic, made of ________
• ______ – remains of plants in swamps
• Formed by ____________ (release of gases
due to bacteria)
• ________ – partial decomp
• _________ – more dense
• ______________ coal – further compressed,
most abundant
• ____________ – hardest form of coal due to
pressure
Petroleum and Natural Gas
•
•
•
•
Mixtures of hydrocarbons
_______ or _______ form
Remains of __________ in bodies of water
Form in _________ rock, pushed upward with
___________
• Stopped by __________ rock
• See page 200
Uses, supplies, and environment
• Uses: source of ________, used in
products such as plastics, medicines,
cleaners, etc
• Supplies: ____________, ______ most
abundant, ___________ almost used up
• Environment: changing earth’s
_________, increased________, acid rain
and air pollution, spills
Nuclear Fission vs. Fusion
•
•
•
•
•
_________
________ of nuclei
Releases energy
_____________
Controlled chain
reaction
• Gives off dangerous
____________
• __________
• Atoms _________
nuclei
• Releases energy
• _______
• Difficult to reach temp
needed
Renewable vs. Nonrenewable
Energy
•
•
•
•
•
•
___________
Solar
___________
Hydroelectric
_________
Enviro-friendly
• ______________
• Fossil Fuels
• _____________