general geology
the study of earth, and how or what forms it
What is geology?
made of one or more minerals
What are rocks?
physical and chemical change of rocks at or near the earth's surface
what is weathering?
a techtonic plate boundary that comes together
What is a convergent plate boundary?
this is about how old earth is
What is 4.6 billions years?
examines the history of earth and its life forms
What is historical geology?
naturally occuring, inorganic solids with a defined chemical composition
What are minerals?
transport of weathered materials by water, wind, ice or gravity
What is erosion?
the techtonic plate boundary that separates
What is a divergent plate boundary?
the largest unit of geological time
What is an eon?
investigates physical and dynamic processes of earth's systems
What is physical geology?
igenous, sedimentary and metamorphic are this
What are the 3 types of rocks?
accumulation of sediments, followed by cementation
what is lithosfication?
when techtonic plates move against each other
What is a transformative plate boundary?
the unit of geological time we're most familiar with
What are periods or eras?
the 4 concentric layers of earth, that we're familar with
What are the crust, mantle, outer core and inner core?
mica and quartz are examples of this
what is a mineral?
altering the rocks size or shape through heat, pressuse or chemical reaction deep in the earth
What is deformation or metamorphism?
this is how mountains and volcanoes form
What is a convergent techtonic plate boundary?
When the first forms of life were on earth
What is 3.7-4.3 billion years?
made up of the crust and upper most part of the mantle
What is the lithosphere?
marble and slate are examples of this
What is a metamorphic rock?
when rocks melt, move, and solidify, forming igneous rocks
what is crystalization or solidification?
this is how earth gets new crust
what is a divergent techtonic plate boundary?
this is when human rose on earth
what is 2.5 million years ago?