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LSU GEOG 2051 Exam 1 Namikas (you won-t regret studying this) with 100- correct answers 2025
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LSU GEOG 2051 Exam 1 Namikas (you won-t regret studying this) with 100- correct answers 2025
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LSU GEOG 2051 Exam 1 Namikas(you won't regret studying this)
with 100% correct answers 2025
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Craton
large, stable block of crust forming the nucleus of a continent. L
Shield
is generally a large area of exposed Precambrian crystalline igneous and
high-grade metamorphic rocks that form tectonically stable areas. In all
cases, the age of these rocks is greater than 570 million years and
sometimes dates back 2 to 3.5 billion years.
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Terrane
A fault bounded area or region with distinctive stratigraphy
Relief
Difference in elevation between any two points
Topographic regions
The shape, height, and depth of the land surface in a place or region.
Endogenic
Forms beneath the surface
Exogenic
Forms above the surface
Mafic
, What kind of magma is a silicate mineral or igneous rock that is rich in
magnesium and iron, and is thus a portmanteau of magnesium and ferric.
Also has a dark color.
Felsic
What kind of magma are igneous rocks that are relatively rich in elements
that form feldspar and quartz. A lighter color.
Viscosity
state of being thick, sticky, and semifluid in consistency, due to internal
friction.
Effusive
What type of volcanic eruption is usually gentle where lava flows out
steadily and slowly. Still obviously dangerous bc lava is f*cking hot though
Explosive
What type of volcanic eruption is a violent and catastrophic, with
pyroclastic flows and raining fragmented rocks? Think Mt. St. Helens,
Krakatoa, Pompeii - you will die in the immediate vicinity
Hot Spots
are volcanic regions thought to be fed by underlying mantle that is
anomalously hot compared with the surrounding mantle. They may be on,
near to, or far from tectonic plate boundaries. Can house a super volcano
underneath that can destroy civilizations. Ex: See the Doom of Valyria
Flood/plateau basalt eruptions
is the result of a giant volcanic eruption or series of eruptions that coats
large stretches of land or the ocean floor with basalt lava.
Shield Volcano
a broad, domed volcano with gently sloping sides, characteristic of the
eruption of fluid, basaltic lava. Think of pimple with pus deep under.
Composite Volcano
is a conical volcano built up by many layers (strata) of hardened lava,
tephra, pumice, and volcanic ash. Think whitehead pimple ready to go
Pyroclast(ic)
relating to, consisting of, or denoting fragments of rock erupted by a
volcano. The materials after a popped pimple.
Ash
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