This new edition, the 7th, takes note of trends in syllabuses on geological structures and associated problem maps, particularly the move to take less account of the use of structure contours in understanding maps and solving structural problems. There are now two chapters on Map solution without structure contours, the first with simpler maps means that this topic has been introduced at an earlier stage in the book. The second introduces more difficult maps and there are, in these two chapters, three new additional maps. The use of structure contours is not diminished in this edition — the chapter explaining the construction of structure contours is retained with minor additions — as are the maps in the chapter on Economic problems which, reflecting the real world, rely heavily on structure contours for their solution. The other most obvious addition, is that of 16 photographs to illustrate geological features as they are introduced. There are a number of minor additions to the text. In respnse to many requests over the years, this edition now contains completed sections of every map (where a section was required) in addition to the two given in the 6th Edition. Solutions to the maps in Chapters 2 and 11 are also included in the appendix. I would like to express may thanks to my coauthor for his contribution, particularly his photographs, and to former colleagues for all their help in the past in providing the foundation on which this present edition is based. <...>

This book provides a general introduction to the most important methods of geophysical exploration. These methods represent a primary tool for investigation of the subsurface and are applicable to a very wide range of problems. Although their main application is in prospecting for natural resources, the methods are also used, for example, as an aid to geological surveying, as a means of deriving information on the Earth’s internal physical properties, and in engineering or archaeological site investigations. Consequently, geophysical exploration is of importance not only to geophysicists but also to geologists, physicists, engineers and archaeologists. The book covers the physical principles, methodology, interpretational procedures and fields of application of the various survey methods.The main emphasis has been placed on seismic methods because these represent the most extensively used techniques, being routinely and widely employed by the oil industry in prospecting for hydrocarbons. Since this is an introductory text we have not attempted to be completely comprehensive in our coverage of the subject. Readers seeking further information on any of the survey methods described should refer to the more advanced texts listed at the end of each chapter. <...>

Polymeric materials, particularly in the form of geosynthetics and fibres, have brought a transform‑ative impact on construction, revolutionizing ground infrastructure and environmental protection over the past few decades. With their diverse compositions, geosynthetics provide sustainable, efficient, cost‑effective, eco‑friendly, and energy‑saving solutions to a wide range of challenges. Their proper use enhances durability, reduces resource consumption, and minimizes environmental impact.

This text is designed for use in advanced undergraduate or early graduate courses in igneous and metamorphic petrology. The book is extensive enough to be used in separate igneous and metamorphic courses, but I use it for a one-semester combined course by selecting from the available chapters. The nature of geological investi-gations has largely shaped the approach that I follow.