Errata Notes on the 2001 Edition
Earth's Dynamic Geosphere
Chapter 1 - Volcanoes and
- Page G8, line 2
40,000 km should be "80,000 km"
- Page G8, Figure 1
Figure 1 was modified to reflect more accurately dimensions of
rifts and to identify the crust within the lithosphere. Figure
(457 KB pdf).
- Page G9, Figure 2
The modified figure below includes distinctions between the different
types of lithospheric plate boundaries and includes the names
of several plates not labeled in the original rendering of Figure
2. Figure (343 KB pdf).
- Page G10, Figure 3 (also page G79, Figure 1)
The relative dimensions of the rift valley and the lithosphere
were modified in this revised diagram. Figure
(133 KB pdf).
- Page G10, line 7
Change "fluid" to "molten".
- Page G10 , first paragraph
Replace with, "In the United States, continental rifting
long ago formed the rocks that make up the tall cliffs on the
western bank of the Hudson River. These rocks formed when magma
intruded the crust during this rifting. The rocks are seen for
more than 80 km along the bank of the Hudson River and can be
up to 300 m thick! Other evidence of magma formed during this
rifting is found in many states along the East Coast."
- Page G11, line 23
Delete last sentence that begins with, "A seamount is a volcanic
- Page G15, right column, line 10
Change "the Earth’s surface" to "sea level".
- Page G20, caption to Figure 5, line 2
Change "Ranier" to "Rainier".
- Page G28, lines 3-4
Delete the sentence “The ash falls to the ground downwind
of the volcano.”
- Page G28, caption to Figure 4, line 2
Change to: "On the left side of the photograph, the dark
region extending down the side of….."
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Chapter 2 - Plate Tectonics
and Your Community
- Page G83, Figure 4
Change "Mendecino" to "Mendocino".
- Page G87, photos at top of the page
Photos should be labeled as follows; left photo: sandstone; middle
photo: granite; and right photo: basalt.
- Page G81, Figure 2
Figure 2 should reflect that melting is initiated in the asthenosphere
above a subducted plate not in the subducted plate itself. Figure
(143 KB pdf).
- Page G90, table, heading of second column
Delete the “s”
- Page G90, first full paragraph
Delete the second and last sentences. Add the following to the
end of the paragraph: "The reason why the speed of seismic
waves increases downward in the mantle is complicated. In the
laboratory, scientists use special equipment to measure the speeds
of seismic waves in different rocks. They can determine how the
speed of seismic waves changes with changes in temperature, pressure,
and rock type."
- Page G90, Figure 1
Change density for Continental crust to "~2.7" and Oceanic
crust to "~3.0".
- Page G96, Figure
A legend is needed to indicate that triangles represent volcanoes
and circles signify major earthquakes.
- Page G114, Figure 3
Change caption to read "The breakup of Pangea." In addition,
the South American continent was inserted into the Figure 3 for
the Cretaceous Period. Figure (459 KB pdf).
- Page G116, line 3
Change "paleolatitude" to "paleolongitude".
- Teacher's Edition, Page 341, test at end of chapter
Replace diagram used for questions 11-13 with this Figure
showing data for GPS recording station CASA in California.
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Chapter 3 - Earthquakes and
- Page G135, Interpreting Seismograms, line 12
Change "and along" to "(are reflected at)".
- Teacher's Edition, Page 498, End of Chapter Assessment
For question 9, responses c and d should be altered so that the
answer key on page 500 remains correct.
The revised responses should be as follows:
c. A brick or masonry building constructed on
d. A steel framed building constructed on solid
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extrusive igneous rock: an igneous rock that has
formed by eruption of lava onto the surface of the Earth.
lava: molten rock that issues from a volcano or
mantle: the zone of the Earth below the crust
and above the core.
map projections: the process of systematically
transforming positions on the Earth's spherical surface to a flat
map while maintaining spatial relationships.
seamount: a peaked or flat-topped underwater mountain
rising from the ocean floor.
seismometer: an instrument that measures seismic
silica: material with the composition SiO2.
subduction: replace the word "crust"
with "lithosphere" in all three places in this definition.
tephra: a collective term for all the particles
ejected from a volcano ...
tsunami: a great sea wave produced by a submarine
earthquake (or volcanic eruption or landslide).
viscosity: the property of a fluid to offer internal
resistance to flow.
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Last updated: May 11, 2010
project is supported, in part, by the National
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