(You can tell the printings apart from the sleeve of the DVD that is included--the one with the 2015 software (spine says "DVD included" instead of "CD included") is the second printing.)

Yes, it is true. We set out to fix mistakes from the first printing and, well, some new things emerged and a few old problems turned out to be missed.

**p. 23, Figure 2.11**.The angles from the horizontal should extend from horizontal to line AB on the left (θ_{1}) and to line YX on the right (θ_{2}).

**p. 45 Figure 2.25**. The ratio of *V*_{2}/*V*_{1} should be 2.

**p. 59, Figure 2.36**. Please ignore the sentence "Vertical and horizontal
are transposed".

**p. 71, gray box in middle of page**. The condition to remember is that *V*_{2} > *V*_{1}, not the reverse.

**p. 85, third sentence of section 3.3.3** should read "...is equal to *EA* + *PC* + *CQ* + *BG*."

**p. 105, sixth sentence of first full paragraph.** Should be an "i" instead of a "1" in the subscript for *t _{if}*

**p. 127, first sentence after eqn 3.77**. Point *H* , not point *F* (so "...defines point *H* on the surface").

**p. 135 Figure 3.36**. Points C and D are missing from the right side of the top panel.

**p. 135 Eqns 3.82 and 3.83**. Should have a negative sign on the right side of the equals.

**p. 141, Problems 3.1-3.3**. The text for these problems was omitted and the figures are not on the DVD. So here they are:

**Problem 3.1.**Refer to Figure 3.38 (or see Problem 3.1 pdf online here). Assuming horizontal interfaces, determine the subsurface geology at this site.**Problem 3.2**. Figure 3.41 is a field seismograph from a region with horizontal interfaces (or see Problem 3.2 pdf online here). Interpret the data.**Problem 3.3a**. Using the information in Figure 3.42 (or Problem 3.3a pdf and Problem 3.3b pdf online here), determin as much as possible about the subsurface geology at the site where the information was recorded. Be sure to include comments concerning the sources of possible error.

**p. 175, Figure 4.14.** Arrow on left edge should only extend over the top three layers.

**p. 177, last sentence first paragraph**. "bests" should be "best".

**p. 178, Figure 4.15**. The lefthand scale should be multiplied by 10 (so 10,000 instead of 1000). Note that the *x* in the line-fit equations was intended to refer to the plotted coordinate, which is actually *x*^{2}.

**p. 193, second equation from top of page**. *z ^{y}* should be

**p. 196, Figure 4.22**. (a) should be labeled with Equation 4.45, (b) with Equation 4.46, as the caption asserts.

**p. 197, Eqn 4.53**. The last term should have a 4 in the denominator, not 32, and that whole squared term should be multiplied by 1/8.

**p. 207, Figure 4.27(b)**. Under "Water table multiple", should be* I*_{rfl0} (the "*l*" was omitted).

**p. 231, Figure 4.39(a)**. The elevation of the dashed line marked "Datum" should be noted as *e _{d}*.

**p. 235, Second gray textbox.** "...500 and 3000 ms" should be m/s, not ms.

**p. 296, Equation 5.36**. Ignore the minus sign in front of the 1/2 in the exponent of the denominator of the first term in both parts of the equation.

**p. 299 Figure 5.18(b) and (c)**. "*a* = 1m" should be dropped from both (*a* varies in these plots).

**p. 386, Eqn. 6.41.** Subscript for ρ should be "*c*", not "2".

**p. 423, Problem 6.11**. Data table Conn_Data missing. The missing table can be downloaded here. Columns are distance in meters and Bouguer anomaly in mGal. A version that can be opened directly in GravMag is here.

**p. 438, Equation 7.9**. *F _{E} *should equal the square root of

**p. 508, between Eqn 8.11 and 8.12**. Should be H/m, not F/m.

Thanks to Abdelali Fadil of the Cadi Ayyad University, Marrakesh, for identifying several of these mistakes.

**p. 14, Table 2.1** - the two lines for Granite (MA) have incorrect values.

**p. 23, Figure 2.11**.The angles from the horizontal should extend from horizontal to line AB on the left (θ_{1}) and to line YX on the right (θ_{2}).

**p. 45 Figure 2.25**. The ratio of *V*_{2}/*V*_{1} should be 2.

**p. 59, Figure 2.36**. Vertical and horizontal
are transposed. The horizontal lines are timing lines at 10 ms intervals; each
vertical trace represents one geophone's response.

**p. 68, figure 3.2. **time difference shown to measure the slope should be '126 ms' not '126 s'

**p. 71, gray box in middle of page**. The condition to remember is that *V*_{2} > *V*_{1}, not the reverse.

**p. 73 Eqn. 3.19** has an extra = sign. Eqn. 3.20 has two extra = signs

**p. 74 Eqn 3.21** has an extra = sign

**p. 82 Eqn 3.29** the "t"s in the subscripts of the denominators should be "i"s.

**p. 85, third sentence of section 3.3.3** should read "...is equal to *EA* + *PC* + *CQ* + *BG*."

**p. 89**, text refers to an older version of **Figures 3.13 and 3.14** so needs to be updated

**p 98, equation 3.43, **change the "-" sign to a "+" sign

**p. 105, sixth sentence of first full paragraph.** Should be an "i" instead of a "1" in the subscript for *t _{if}*

**p. 122 **In the text between eqs. 3.71 and 3.72 should say T_{GF} = T_{GR} instead of T_{GF} + T_{GR}

**p. 127, first sentence after eqn 3.77**. Point *H* , not point *F* (so "...defines point *H* on the surface").

**p. 135 Figure 3.36**. Points C and D are missing from the right side of the top panel.

**p. 135 Eqns 3.82 and 3.83**. Should have a negative sign on the right side of the equals.

**p. 141, Problems 3.1-3.3**. PDF versions
of the figures are online:

**p. 144, problem 3.7. **Distance units are meters.
Time units are ms.

**p. 144, problem 3.8. **Distance units are meters.
Time units are ms.

**p. 144, Problem 3.9**. The data file was omitted
from the CD but can be
downloaded here. It is a data file for use with the Refract code included
with the text (you have to open the file by selecting "Open" from
the File menu--the file will open best if opened with the Data Window frontmost
but will still open correctly if the model window is frontmost). Save the file
to disk for use.

**p. 145, problem 3.10.** Distance units are meters.
Time units are ms.

**p. 145, problem 3.11.** Time units are ms.

**p. 146, Problem 3.12**. The data file was omitted
from the CD but can be
downloaded here. It is a data file for use with the Refract code included
with the text (you have to open the file by selecting "Open" from the
File menu--the file will open best if opened with the Data Window frontmost
but will still open correctly if the model window is frontmost). Save the file
to disk for use.

**p. 146, problem 3.13.** Distance units are meters.
Time units are ms.

**p. 147, problem 3.14.** Distance units are meters.
Time units are ms.

**p. 172, Figure 4.13**. The y axis is off by a factor of 10, i.e., instead of scale going from 0-6000 it should be from 0-60,000.

**p. 175, Figure 4.14.** Arrow on left edge should only extend over the top three layers.

**p. 177, last sentence first paragraph**. "bests" should be "best".

**p. 178, Figure 4.15**. The lefthand scale should be multiplied by 10 (so 10,000 instead of 1000). Note that the *x* in the line-fit equations was intended to refer to the plotted coordinate, which is actually *x*^{2}.

**p. 184&197, eqn. 4.27**. The 1/2 exponent is mostly invisible (the entire numerator shoud be raised to the 1/2 power).

**p. 193, second equation from top of page**. *z ^{y}* should be

**p. 196, Figure 4.22**. (a) should be labeled with Equation 4.45, (b) with Equation 4.46, as the caption asserts.

**p. 197, Eqn 4.53**. The last term should have a 4 in the denominator, not 32, and that whole squared term should be multiplied by 1/8.

**p. 207, Figure 4.27(b)**. Under "Water table multiple", should be* I*_{rfl0} (the "*l*" was omitted).

**p. 231, Figure 4.39(a)**. The elevation of the dashed line marked "Datum" should be noted as *e _{d}*.

**p. 235, Second gray textbox.** "...500 and 3000 ms" should be m/s, not ms.

**p. 253, Figure 4.50b**, should state "interval velocities," not
"internal velocities," on the upper right hand side of Figure 4.50b.

**p. 256-7, Figure 4.52**. Time scale for Fig. 4.52a is in error;
the correct scale was used in 4.52b

**p. 296, equation 5.36**. Ignore the minus sign in front of the 1/2 in the exponent of the denominator of the first term in both parts of the equation.

**p. 299 Figure 5.18(b) and (c)**. "*a* = 1m" should be dropped from both (*a* varies in these plots).

**Ch. 5, dynamic tables 5-5 and 5-6**. Newer versions of Excel complain about these; updated tables can be downloaded here.

**p. 350**. The radii are reversed; the radius at the equator is 6.378 x 10^{8} cm and at 45° latitude is 6.367 x 10^{8} cm

**p. 386, Eqn. 6.41.** Subscript for ρ should be "*c*", not "2".

**Ch. 6, dynamic tables 6-8 and 6-9**. Were in error: download corrected table 6-8 and download corrected table 6-9

**p. 438, equation 7.9**. *F _{E}*should equal the square root of

**p. 452, eqn 7.20**. There should be a 1/*r* in front of the d*Z _{E}*/dθ (because we want d

**p. 469, Table 7-3**. There was an error in the
Excel file that created this table. A revised version (MS Word file) can be
downloaded here. **This is a revised correction posted 6/16/10**. A replacement for dynamic table 7-3 (on the CD) is here.

**p. 501, Figure 8.1** color spectrum is reversed (mainly noticeable for instructor resources)

**p. 508, line after eqn 8.10** "*f* < 10^{7} Hz" should be "*f* > 10^{7} Hz"

**p. 508, between Eqn 8.11 and 8.12**. Should be H/m, not F/m.

**p. 516**, **eqn 8.16** is missing a μ_{0} (mu-naught) in the numerator on the right side of the equation (compare to eqn. 8.17)

**p. 527, eqn. 8.49**, l/4 λ (1/4
lambda) = 20 cm, not 2 cm

**p. 535, Fig. 8.20(c)**, for clarity, the "V" should
have a subscript "1"

**CD**: Please replace dynamic tables 5-5 and 5-6 with files updated for newer versions of Excel , table 6-8 with this corrected version, table 6-9 with this corrected version and table 7-3 with this
corrected Excel file. **Table 7-3 is a revised correction posted 6/16/10**. Note that updaters to the software are available
elsewhere

Thanks to Greg Mountain, Don Steeples, Xavier Perez. Leslie Sonder, Heather Lehto, Zach Albert, Cliff Thurber, Abdelali Fadil and others for pointing out some of the above.

More information on the text is at the Norton information page for this text. Instructors can obtain electronic versions of the graphics and other such information from the Instructor Resources Page.

Please send mail to cjones@colorado.edu if you encounter any problems or have suggestions.

C. H. Jones | CIRES | Dept. of Geological Sciences | Univ. of Colorado at Boulder

Last modified at July 12, 2020 1:21 PM