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NDSU GEOL 105 FINAL TEST WITH COMPLETE SOLUTION
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NDSU GEOL 105 FINAL TESTWITH COMPLETE SOLUTION
Non-metal - Answer The element phosphorus is a:
True - Answer T/F The type of magma that leads to violent eruptions has a very high
proportion of volatile compounds like water vapor and carbon dioxide.
Stratovolcanoes - Answer What volcanic landform or feature can erupt cataclysmically
to form a caldera?
Tectosilicates (network silicates) - Answer Within the silicate family of minerals which
subgroup has the most covalent bonds?
Moh's - Answer The scale used by geologists to compare the hardness of different
minerals is called:
4.5 to 4.55 billion years old - Answer The scientifically accepted age of the Earth is:
Noble gases - Answer Krypton, element #36, is a member of which scientific group of
elements?
Metamorphic rocks - Answer rocks that have been changed by heat & pressure
Convergent - Answer The Himalayas and Tibetan Plateau occur at which type of tectonic
plate boundary?
Chemical - Answer The periodic table is arranged based on the __________ properties of
the elements.
mineral - Answer a naturally occurring, inorganic, solid, with an ordered internal
arrangement of atoms with a definite chemical composition
Ferromagnesian silicates - Answer Silicate minerals that include iron and/or magnesium
in their crystalline structure and basic chemical formula are called:
Stratovolcanoes - Answer Classical tall cone-shaped volcanoes, like Mount St. Helens,
built up from alternating eruptions of pyroclastic material and lava flows are:
Aphanitic - Answer Iceland is composed primarily of basaltic rocks that cool rapidly at
the Earth's surface. Which rock texture are they most likely to exhibit?
Neutrons - Answer Atoms are made up of 3 smaller particles, protons, neutrons, &
electrons. Isotopes of the same element have different numbers of ___________?
Porphyritic - Answer The igneous rock texture that exhibits two different crystal sizes,
large phenocrysts in fine-grained groundmass, is called:
,Convergent - Answer Two tectonic plates are moving toward each other, the boundary
between them is called:
A hypothesis - Answer A formal scientific question based on observation and derived
from existing knowledge in the field is:
Oxygen, Silicon, Magnesium, Iron - Answer What 4 elements make up more than 95% of
the Earth's mass?
True - Answer T/F Cinder cone volcanoes are the smallest type of volcanoes and
generally form from a single eruption.
S or S2 - Answer Members of the sulfide mineral group all include which anion below as
a fundamental component of their chemical formula:
Basalt - Answer An extrusive igneous rock with aphanitic texture and mafic composition
would be classified as a:
-1 - Answer The most probable ionization state for Iodine, element #53, is:
The sulfates - Answer The mineral Rhodochrocite (MnSO4) is a member of which mineral
group?
The nebular hypothesis - Answer Our current scientific understanding of the formation
of the Solar System and the Earth is called:
High - Answer Is the chemistry of an ultramafic igenous rock likely to be relatively high
or relatively low in Fe & Mg?
Cenozoic - Answer Which geologic era (subdivision of the geologic time scale) is the
current era and is sometimes referred to as the "age of mammals"?
and developing the context to understand new knowledge - Answer What aspect of
science is missing from the following definition? Science is a logical, systematic process
of acquiring new knowledge...
False - Answer T/F The active volcanoes on Earth emit much more carbon dioxide into
the atmosphere than current human activities.
Ionic - Answer The chemical bonding in a compound formed from Potassium (K, #19)
and Bromine (Br, #35) would most likely be:
Anion chemistry - Answer Minerals are classified/categorized into groups or families
based on:
New rock is created at the boundary - Answer Divergent plate boundaries are referred
to as constructive margins because:
True - Answer T/F The age of the earth cannot be determined by radiocarbon dating
because the half-life of 14C is far too short/rapid.
, Uniformitarianism - Answer "The present is the key to the past" is an adage that
represents the theory of slow, continuous geologic change called:
Cyclosilicates (ring silicates) - Answer Beryl has a O:Si ratio of 3:1 and is a
representative member of what silicate mineral sub-group?
3.8 to 4.2 billion years old - Answer The oldest rocks found at the Earth's surface are:
True - Answer T/F Unlike most other liquids, water increases in volume when it freezes.
Oolitic limestone - Answer Which of the following rocks is a form of inorganic limestone:
oolitic limestone
fossiliferous limestone
chalk
coquina
Cambrian Explosion - Answer The appearance and rapid proliferation of hard bodied
macrofossils in the geologic record is called the:
Alluvial & deltaic - Answer Distributary channel systems are characteristics of which
sedimentary environment(s):
Teeth - Answer Which of the following would not be considered a trace fossil:
burrows
coprolites
gastroliths
teeth
footprints
Ripple marks - Answer Which of the following sedimentary structures can indicate the
flow direction of the mobile agent(s) when the sediments were deposited:
mud cracks
raindrop marks
ripple marks
concretion
Exposure at the surface for an extended period before burial - Answer Which of the
following conditions is NOT conducive to fossilization:
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