Based on the classic ecosystem studies at Hubbard Brook in New Hampshire, this book presents an in-depth analysis of the biogeochemistry of a terrestrial ecosystem. It synthesizes long-term data on precipitation and streamwater chemistry, hydrology and weathering, and also considers the dynamics of atmospheric gases and water as they flow through the system. Hailed as "ÄaÜ standard for ecological teaching and research for years to come", the book "bristles with unsettled questions, intriguing problems, and technical challenges". This new edition brings the 1977 volume up to date and presents the ongoing Hubbard Brook study to a new generation of ecologists. The authors have international reputations: they won the $150,000 Tyler Prize in Environmental Science in 1993, and Likens also won the $250,000 Australia Prize in 1994.
(1)Breathtaking color photographs, especially commissioned and in a fresh new layout that's completely revised from earlier editions, capture the glistening beauty of gemstones from around the world--stones used for jewelry and magical rites as far back as 20,000 years ago. This feast for the eyes shows uncut stones and gems in their natural state, details how they are formed and mined, and also includes such exquisite jewel-adorned creations as a Spanish Renaissance pendant with Columbian emeralds, the Black Prince's ruby set in the British Imperial State Crown; a Mayan jadeite mask, and the Koh-i-Noor diamond. For a full understanding of their fascination, look beyond their visible magnificence to the gems' structure and physical attributes. Besides the most popular gemstones, you'll find fascinating descriptions of common imitations and synthetics--and advice on distinguishing the real from the fake.
Note: This book is published in cooperation with the prestigious The Natural History Museum.
'… an indispensable reference and cook book for up-to-date petrographers and regional mappers.' Tomas Feininger, The Canadian Mineralogist
' … this is an excellent reference book. It is a must for all Earth Science libraries and those involved in the study of igneous rocks.' Geological Magazine
'It is far from a dry text being full of interesting information and written so well …'. Open University Geological Society Journal
Volcanic eruptions are the clear and dramatic expression of dynamic processes going on in planet Earth. The author, one of the most profound specialists in the field of volcanology, explains in a concise and easy to understand manner the basics and most recent findings in the field of volcanology. Based on over 300 color figures and the model of plate tectonics the book offers an insight in the generation of magmas and the occurrence and origin of volcanoes. The analysis and description of volcanic structures is followed by process oriented chapters discussing the role of magmatic gases as well as explosive mechanisms and sedimentation of volcanic material. The final chapters deal with the forecast of eruptions and their influence on climate. Students and scientists of a broad rage of fields will use this book as an interesting and attractive source of information.
This second edition 'Gemmology' has been expanded and updated throughout by the well known writer and editor of Butterworth-Heinemann's gemmology series, Peter Read. This is a much needed update of a classic text and new syllabus information and sample examination theory papers for the Gemmological Association's Preliminary and Diploma courses are included. The additions also incorporate more recent developments, such as the introduction of synthetic moissanite and the De Beer's instruments for distinguishing between natural and synthetic diamonds.
'Gemmology' still serves as a useful reference guide for gemmologists detailing the latest natural and synthetic gem materials and is an invaluable text for anyone in the gemmological profession.
* Much needed update to a classic text
* Best author to write this book
* New information for the relevant exams and courses with techniques and questions
Secrets Of The Gem Trade is the first comphrehensive gemstone grading manual. The book divides into two parts. Section I describes the criteria used to quality grade faceted gems, cabochons, pearls, opals, star stones and Catseyes. Section II applies the grading criteria to 35 of today's most important gemstones. The book covers diamond, ruby, sapphire, emerald, tourmaline, garnet, pearl, agate and opal The book inludes 1st person travelogues from Mr. Wise's trips to the major gem bearing areas of the world, including Africa, Asia, Australia and South America.
"An excellent compendium of extensively illustrated microstructures representing the full spectrum of rock types...Vernon's in-depth treatment of microstructures is a valuable addition to the applied literature...Essential." M.E. McCallum, emeritus, Colorado State University, CHOICE
This new, updated edition of Introduction to Mineral Exploration provides a comprehensive overview of all aspects of mineral exploration. Successful mineral exploration requires excellence in geology as well as integration with a range of other scientific, engineering, and financial techniques. This book covers not only the nature of mineral exploration but also considers other factors essential to successful exploration, from target evaluation to feasibility studies for extraction and production. Six detailed case studies, selected for the range of different problems and considerations they present to the mineral explorationist, are also included. This second edition is updated to include new chapters on handling mineral exploration data and a new case study on the exploration for diamonds. Introduction to Mineral Exploration is essential reading for upper level undergraduates studying ore geology, mineral exploration, mining geology, coal exploration, and industrial minerals, as well as professional geologists.
This practical step-by-step guide describes the key geological field techniques needed by today's exploration geologists involved in the search for metallic mineral deposits. The techniques described are fundamental to the collection, storage and presentation of geological data and their use to locate ore. This book explains the various tasks which an exploration geologist is asked to perform in the sequence in which they might be employed in an actual exploration project. Hints and tips are given and the steps are illustrated with numerous examples drawn from real programmes on which the author has worked. Traditional skills are emphasised to show how they can be combined effectively with modern high-technology approaches.
