Test: Physical Geology
In some places, granite rock extends as deep as _____.
50 kilometers
What percent of the Earth's surface does the ocean cover?
71
forces are responsible for anticlines and synclines.
Horizontal
What can be reasonably inferred from the knowledge of a declining magnetic field?
The Earth is relatively young.
metallic: dense rock: asthenosphere: ocean floors: magnetic field:
core mantle mantle crust core
A lagoon is a coastal feature.
True
A geosyncline is _____.
a sediment basin
The earliest product in the weathering-erosion-sedimentation cycle is _____.
a talus
Striations of rocks found at high altitudes are most likely caused by _____.
abrasion
Bioherms are made of _____.
algae, corals, and shells
It is possible to determine the environment of sedimentation for various sand dunes by _____.
all of the above
The ocean floor is made of mostly _____.
basalt
angular rocks
breccia
Granite originated _____.
by solidification of subsurface magma
graphite
coal
gravel
conglomerate
There are two main differences between the upper and lower mantle of the earth's core. The upper mantle is _____and the upper mantle is made up of rock that has the characteristic of ___
cooler plasticity
Rock that is cooled and solidified above ground is called _____.
extrusive
A reef results from life processes.
false
Chemical weathering changes quartz to clay minerals.
false
Density has no units.
false
It is obvious that the large stalactites in an underground cavern must have required long ages to form.
false
Meanders are characteristics of a young river.
false
Oceans cover almost 50 percent of the earth's surface.
false
The majority of geologists believe that the sedimentary rock require 25,000 years to accumulate.
false
The rock that underlies the oceans is granite.
false
The shape of continents is the only line of evidence for plate tectonics.
false
What kind of mountains are one line of evidence for horizontal crustal movement?
folded
Large areas which have elevated domes are formed by _____.
granite magma attempting to rise through the crust
Choose the correct type of rock for the following: granite: sandstone: basalt: marble:
igneous sedimentary igneous metamorphic
calcium carbonate
limestone
Which items are associated with the formation of salt domes?
oil low density plastic flow subsurface salt layers
When deposits of sediment form along a river bed causing the river bed's loop to close off and take a shorter course, a(n) _____ is formed.
oxbow lake
Igneous rock that is eventually carried away and deposited by natural means is called _____.
regolith
quartzite
sandstone
sand
sandstone
clay
shale
slate
shale
A _______is where a river begins and a __________ is where it ends.
source mouth
Tectonic plates are present on the earth's surface because _____.
the hot asthenosphere created cracks in the lithosphere
Lava blown out of a volcano in explosive eruption is called pumice.
true
The knowledge of mathematics, geometry, and astronomy pre-dates the Greek civilization.
true
The compression required to form the tightly folded Himalayan Mountains is believed to have resulted from the collision of _____.
two continental plates
Abrasion is caused by the effects of _____.
winds and sand
The lack of large talus accumulations at the base of many canyons and erosional remnants may be explained by _____.
young age of the rock slopes
