Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
JOURNAL OF PETROLOGY VOLUME 38 NUMBER 10 PAGE 1459 1997 Book Review Radioactive and Stable Isotope Geology, by H.-G. Attendorn and R. N. C. Bowen. Chapman & Hall, London, 1997. ISBN 0 412 75280 8. 519 pp. Hardback. £95. Isotopes are used ever more widely across most branches of the Earth Sciences. They are an integral part of the shift in emphasis to the study of natural processes, to what forms rocks rather than the rocks themselves. Moreover, the development of more physically realistic models in part relies on more precise information on the rates of natural processes. In recent years increasing use has been made of the Lu–Hf and Re–Os isotope systems, and the development of mass spectrometric techniques for the measurement of short-lived U-series isotopes has resulted in significant advances in the study of the timescales of magmatic processes, and in the chronology of climate change over the last 200 000 years. The subject of radioactive and stable isotope geology has expanded considerably, and this book represents a complete revision of Isotopes in the Earth Sciences published in 1988, and most of the references are post-1988. It provides an up-to-date and thorough treatment of the theory and practice of isotope geology, but there are relatively few diagrams, which may make some aspects a little less accessible to students. Also, there are no student exercises or worked examples. The book is divided into four parts: an introduction to isotope chemistry and mass spectrometric methods, radiometric dating, the use of isotopes in climate and environmental studies, and a final part that considers extra-terrestrial matter, geothermometry and the stable isotope geochemistry of the Earth’s lithosphere. The first part includes a description of the principles of mass spectrometry, isotope fractionation, nucleosynthesis and the origins of the elements, and more practical aspects of mass spectrometry. The first chapter in the section on radiometric dating is on uranium, thorium and lead: it reads well, but Pb isotope systematics are more complicated than Rb–Sr or Sm–Nd, and it is probably more usual to start with a simpler system. The writing style is clear and easy to read, but a lot of information is included and there are curious anomalies, such as when the Th isotope composition of island arc rocks is discussed in the chapter before uranium series disequilibrium is introduced. A short chapter on U–Xe and U–Kr dating is followed by chapters on Rb–Sr, K–Ar and Ar–Ar, 14C and a number of other methods including I–Xe, La–Ce, Lu–Hf, Po–Pb, K–Ca, Re–Os and Sm–Nd. There are useful discussions of radiation damage dating methods (fission tracks, electron spin resonance and thermoluminescence) and those involving cosmogenic nuclides, but throughout the emphasis is on geochronology and there is little discussion of the application of radiogenic nuclides as tracers in geologic processes. Parts 3 and 4 are primarily concerned with the application of stable isotopes to studies of the biosphere and the crust. There are sections on the isotopes of oxygen, nitrogen, carbon, sulphur, chlorine, silicon and noble gases, and their uses are applied in areas such as palaeoclimatology and palaeoecology, fossil fuels and stratigraphy. The last three chapters then consider stable isotopes in meteorites and lunar rocks, in the common rocks of the Earth’s crust, and as geothermometers. In summary, this is a book that is full of much useful information, and is written in a clear and pleasing style. However, it may be most used by those who already know a little about isotope geology, and who therefore know what they are looking for. The striking shortage of easily accessible diagrams does not make it easy for students starting in this field, and so Radioactive and Stable Isotope Geology may be better regarded as a useful reference volume, rather than the core text of a course in isotope geology. C. J. Hawkesworth Oxford University Press 1997