Physical Geology - First University of Saskatchewan Edition
Copyright Year: 2019
Publisher: University of Saskatchewan
Conditions of Use
Karla Panchuk's Physical Geology textbook is excellent. It contains a wealth of fundamental physical geology information, updated references, online links, excellent images, hands on exercises, some phonetic pronunciation of geologic terms and is... read more
Karla Panchuk's Physical Geology textbook is excellent. It contains a wealth of fundamental physical geology information, updated references, online links, excellent images, hands on exercises, some phonetic pronunciation of geologic terms and is reader friendly. The Earth materials section, minerals and rocks, is very good. The hydrologic component is good but would be improved with incorporating groundwater and karst into Karla's text. These topics are at the end of the text as Earl's Chapter 14 and perhaps this is a work in progress. The surficial landform part of the text would be further improved by including chapters on deserts and coastal processes. The Earth system changes and resource chapters are excellent.
The text is accurate, unbiased and largely error free. However, some corrections and considerations are listed below. Chapter 1. Figure 11.2 should be labelled Figure 1.2. Chapter 3. Karla ought to define mafic and felsic before using them on page 3. Mafic (70-90 % DCM) and felsic (<40% DCM) refer to the % of dark colored minerals (DCM) and strictly speaking are not directly related to % silica. Percent silica classification includes terms ultrabasic, basic and silicic. The mafic/basic and felsic/silicic issue is a commonly accepted error in introductory texts and is in part due to the desire to reduce use of confusing geologic terms. Chapter 5. Figure 5.37. Plagioclase has two planes of cleavage at ~90 degree angles Chapter 5. page 18. Sulfur forms from sublimation from a gas. Chapter 7, page 7 and 10. same as comments for chapter 3 above. Chapter 7. page 9. Figure 7.11a doesn't make sense Chapter 7. page 13. DCM ranges are unusual. What is your source? Chapter 9. Diagenesis should be discussed in this chapter as you mention it in Chapter 10 but do not define it anywhere. Chapter 9. You should also mention law of lateral continuity and cross-cutting relations. Chapter 10. Figure 10.2. Shale is usually shown being converted to slate, phyllite or mica schist. Your figure shows it being converted to a granite gneiss. Chapter 10. page 2. No estimate for low end temperatures that initiate metamorphism. While low end temperatures are highly variable, they are typically estimated to be at 100-200 C. Also diagenesis is mentioned here so see comment for Chapter 9. Chapter 10. page 4. Time is highly variable and should not be related only to millions of years. As you later state, impact metamorphism and contact metamorphism can be almost instantaneous so the 1 mm/Ma analogy is not always accurate. Chapter 10. page 8. slate, phyllite and tuff can also form from tuff as well as shale/mudstone protoliths. Chapter 10, page 11. No mention of skarns here although you do mention them on page 24. Chapter 10, page 13. "If metamorphic rock is heated enough"?? What is the temperature range of "enough"? Chapter 10. page 15. This is the first mention of temperature in C. Chapter 10, page 16. No mention of index minerals or faces so far but you do mention blueschist here. Chapter 10, page 17-18. No mention of time with respect to contact metamorphism. Chapter 10, page 19. Dynamic metamorphism in shear zones with somewhat elevated temperatures should be discussed. Chapter 10, page 19. Discussing facies before index minerals in unusual particularly since index minerals were first developed and were followed (and somewhat based on) by index minerals. Chapter 10, Figure 10.35. The foliated rock type and facies range designations are questionable. Are there no schists in the amphibolite facies? Are there no gneiss in granulites? Do slates only occur in zeolite and clay and not in greenschist facies? Chapter 10, page 21. Index minerals should be discussed earlier and perhaps show different protolith compositions (basalt and shale are both commonly used). Chapter 11. page 4. Calderas can form by more than 1 process. The 2nd process you describe with Santorini's eruption. Chapter 11, page 21. No phonetic spelling for "Eyjakjallajokull"? Everyone would appreciate that! Chapter 11. page 23. Provide an example of a composite volcano in a rift zone. Chapter 16. No mention of the 2011 Japanese Tsunami. Chapter 13. Photos for synclines and anticlines are not up to the standard for other images in this text. No mention or images of monoclines, basins or domes either. Also no mention of oblique faults or shear zones. Chapter 13. Interesting to have strike and dip presented near the end of this chapter. I would prefer attitude presented in the beginning as it obviously relates to folds and faults. Chapter 14. Figure 14.15. No mention of point bar or cut bank. Point bars are discussed later in the chapter but not cut banks. Chapter 14. page 10. Discharge is only briefly mentioned and not well defined. How is it calculated? Provide an example. Chapter 14. Groundwater and karst are sorely missing in this chapter although they are presented at the very end of this text. Chapter 15. Table 15.1 rates of motion are not accurate. Landslides and slumps are not limited to mm or cm/year but can be deadly fast.
The content is up to date and written in an engaging fashion. I love the fact that references are provided, many of which are available on line. This is unusual for an introductory textbook but I think it is great. Updates will be relatively easy to implement.
The text is lucid and written in a digestible fashion. Phonetic spelling of terms is a great idea and could be expanded upon. Pronouncing geologic jargon can be embarrassing to us all, but especially for introductory students in a lecture hall.
The text is internally consistent in terms of terminology and framework. I suggest in earlier comments improvements in text content flow but this text is excellent as is.
This text is readily divisible and strong in all components.
I have already made some comments on the organization of content, but an author will not please everyone all the time. Geologic time should be early in the text. In discussing mineral properties, I suggest starting with luster, followed by hardness ad cleavage as that is the order by which minerals are commonly identified in introductory courses. Glaciers should precede climate change (or Earth system change).
This text is free of interface issues.
Minimal errors were observed.
The text is not insensitive or offensive in any way.
Karla Panchuk's Physical Geology textbook is an excellent open education resource that I highly recommend. This text provides a wonderful framework enhanced by excellent images, hands on exercises and scientific references many of which are available online. Karla's textbook is up to date and comprehensible. I believe students will enjoy the writing style and the subject content. Physical Geology focuses largely on Canadian geology but should appeal to readers worldwide because of its excellence.
This textbook covers all of the major areas of concentration seen in the most popular of current physical geology texts produced by the major publishing companies. In addition, the material presented in the textbook is covered at the level... read more
This textbook covers all of the major areas of concentration seen in the most popular of current physical geology texts produced by the major publishing companies. In addition, the material presented in the textbook is covered at the level expected of in an introductory, college science course. A glossary is provided, but there are no hyperlinks to the chapter where each term is introduced as are in the OER textbook by Steven Earle (Physical Geology, 2nd ed., 2019) with which this text is based. The hyperlinks, like seen in the textbook by Earle, would be very helpful. Like Earle’s textbook, this textbook also does not contain an index. That is surprising and very unfortunate, especially considering that it does not have the hyperlinks in its glossary like in Earle’s textbook. I’m sure making an index is tedious work, but this textbook would be greatly enhanced with the addition of an index.
As far as I can tell, I do not see or remember finding anything glaringly incorrect with this the material presented in this textbook.
The textbook is up-to-date on the latest understanding of the concepts presented. It is also very well referenced throughout. It is also very modular based. So, it’s easy to separate the chapters from the whole PDF document.
The textbook is written at the college-level and is appropriate for an introductory course in Physical Geology.
I do see consistency throughout the text in regards to terminology used. I tell my students, "In geology, there are often at least five different ways to say the same thing." This textbook handles terms and their usage very well. I didn’t see multiple terms being used interchangeably that mean, essentially, the same thing. For example, I’ve seen the terms ‘stress’ and ‘pressure’ used interchangeably within the same chapter in other textbooks. This can be confusing to students, and, I’m happy to report, I did not see situations like this in this textbook.
The textbook is very modular. It is easy to split the different chapters into their own PDF files. When I use OER textbooks in my classes, I do this when presenting a new chapter or two within each new module in my LMS course shell. Still, I do give students a link to the entire textbook as one PDF (they are typically very large PDF files, such as this textbook), because the individual chapters are often hyperlinked to other parts of the textbook. Unfortunately, I do not see any hyperlinking within this textbook.
The organization is very clear and orderly. For the most part, the chapters are arranged in a very similar order to almost every other geology textbook I have used/reviewed. I do like that this textbook places the Plate Tectonics chapter near the beginning of the text. In the textbook by Earle, with which this textbook was based, the Plate Tectonics chapter is placed toward the back of the textbook. Most physical geology textbooks have adopted the style of presenting Plate Tectonics at the beginning of their texts since it is the fundamental unifying theory of all geological processes. So, having the Plate Tectonics chapter near the beginning of the textbook is very nice to see!
The text size and font style used makes this textbook physically easy to read. I just wish the hyperlinks seen in the textbook by Earle were also in this textbook as well.
I do not see any grammatical errors.
I do not notice any culturally insensitive or offensive language used within the textbook. That said, it would be nice to see a segment of each chapter devoted to the work of a current, innovative scientist involved in a research related to the material presented in the chapter . . . especially focusing on research contributed by women and minorities. In the US, the geosciences are need of diversity. We need to do all we can to show our students that anyone with an interest in science can make a career out those interests, regardless of their gender, age, race, sexual orientation, etc.
Overall, this is a great textbook! I’m very glad it exists. I also like that the author has developed and made available for download a set of editable PowerPoint lecture files for each chapter. This is not necessary, but it is nice to see as it can be a great resource for both faculty and students in certain situations.
The coverage of the subject area is most excellent. read more
The coverage of the subject area is most excellent.
There is a high level of accuracy in this text.
The text does a nice job of covering topics in a manner that is very relevant and timeless. Coverage utilizes many Canadian geologic examples which is not surprising with a Canadian publisher.
This text is easy to follow & read.
There are many internal references that direct the reader to another portion of the text for further information on the topic.
The modularity of sections within the individual chapters present. At the end of each chapter is a review blurb for each section. It would be helpful for the section topics to be published in an extended table of contents and at the beginning of each chapter.
The organization of the text provides a more than adequate , logical flow.
No significant issues.
no noticeable grammatical errors.
The textbook is culturally sensitive.
Overall this is a very good textbook for a Geology course and will be utilized in the course I'm teaching this fall.
I found this textbook to be extremely comprehensive, as it covered all of the traditional topics in a physical geology textbook, plus included chapters on Origin of Earth and Earth System Change. In addition I found it covered each topic in more... read more
I found this textbook to be extremely comprehensive, as it covered all of the traditional topics in a physical geology textbook, plus included chapters on Origin of Earth and Earth System Change. In addition I found it covered each topic in more than sufficient detail, as there were abundant additions to the previous Earle Edition. There is no glossary or index, however I don't think either is necessary.
I did not find any content errors in this book.
Most of the chapters have been updated as of 2019 so they have very relevant content, and the author already states that they are in the process of creating another updated version, and welcomes comments/contributions.
The book was written in a clear manner.
The text framework is consistent.
The textbook is divided up in chapters with subsections, which can be easily assigned. The only issue I faced was accessing the subsection online, I found it easier to download the whole textbook.
I prefer the organization of the topics in this text to the original Earle edition, as I prefer to start with origin of earth, moving on to plate tectonics, followed by minerals etc. Although the chapters could easily be assigned in a different order to suit the needs of the instructor.
The only issue I faced with this textbook was interacting with it in an online format. The subsections would not open without resetting the page.
I did not find any grammatical errors,
The text is not offensive in any way. However I do think there could be more examples of diverse scientists, both currently working in the field and who contributed throughout history. For example, there is no mention of Marie Tharp in the discussion of ocean floor mapping.
Table of Contents
- Chapter 1. Introduction to Geology
- Chapter 2. The Origin of Earth and the Solar System
- Chapter 3. Earth's Interior
- Chapter 4. Plate Tectonics
- Chapter 5. Minerals
- Chapter 6. The Rock Cycle
- Chapter 7. Igneous Rocks
- Chapter 8. Weathering, Sediment, and Soil
- Chapter 9. Sedimentary Rocks
- Chapter 10. Metamorphism and Metamorphic Rocks
- Chapter 11. Volcanism
- Chapter 12. Earthquakes
- Chapter 13. Geological Structures and Mountain Building
- Chapter 14. Streams and Floods
- Chapter 15. Mass Wasting
- Chapter 16. Earth-System Change
- Chapter 17. Glaciation
- Chapter 18. Geological Resources
- Chapter 19. Measuring Geological Time
About the Book
Physical Geology is a comprehensive introductory text on the physical aspects of geology, including rocks and minerals, plate tectonics, earthquakes, volcanoes, mass wasting, climate change, planetary geology and much more. It has a strong emphasis on examples from western Canada. It is adapted from "Physical Geology" written by Steven Earle for the BCcampus Open Textbook Program.
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