Petrography of igneous end Metamorphic Rxks is designed for students taking their first course in petrography. It combines, in a single book, a compilation of the optica) properties of the common rock-forming m nerals. descriptions of the textures and structures of igneous and metamorphic rocks, and a treatment of the classification of these rocks. The book deals with the description of rocks, not their origins. The coverage is not exhaustive and is limited to what students are likely to encounter and need to know in an introductory petrography course. The material is organized so as to make it as rapidly accessible as possible, for those who have not previously had a course in optical mineralogy. Chapter 2 briefly introduces this subject.

Petroleum geoscience is a multidisciplinary subject, underpinned by the broad spectrum of the Earth sciences. The aim of this book is to cover the fundamentals of the Earth sciences and examine their role in controlling the global occurrence and distribution of oil and gas resources. It also explains the principles, practices and the terminology associated with the upstream sector (exploration and production activities) of the oil industry. The book is intended also for non-geoscientists — petroleum engineers, drilling engineers and petrophysicists — who, due to their interaction with geologists and geophysicists, benefit from some knowledge of the latters’ role and work practices in exploration ventures

The continually rising standards of petroleum geoscience and oil search require an ever greater knowledge of the fundamental nature of petroleum, its origin, and its behavior in the rocks of the earth’s crust. In the early stages of the petroleum era, most oil men were not much concerned about the how, why, and when of oil and gas; all they cared to know was where. Those years are gone, and it is now more and more recognized that the how, why, and when of petroleum are critical keys to where it should be sought.