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There has been a great upsurge in the teaching and practice of Geology in India during the last few decades mainly because of development of mineral and petroleum industries. Soon after Independence, there were few universities teaching this subject, but thereafter, there has been an upsurge and now there are geology departments in most universities, and their numbers are growing. There is, however, a great dearth of Indian text and reference books. This work is designed as a much-needed aid to students, teachers and professionals alike. Like any modern science, the science of Geology has its own nomenclature and terminology. Since it is an interdisciplinary science it has taken to its bosom terms also derived from physical, chemical and biological sciences-relevant words from these also find a place, as also words from peripheral disciplines. The aim of this work is to cover all essential terms used in different branches of the science and to provide concise but adequate definitions and information for each. Descriptions of only basic mineral groups and species are given, for there are more than 3700 minerals known. Similarly, the number of rock types runs into hundreds, and only the main groups are defined. Also avoided are stage names and names of Indian and other stratigraphic units which would have made the volume unwieldy. The basic stratigraphic units, system/period and above, and their nomenclature, classification and ages, are however listed, and follow the latest International Stratigraphic Chart 2004 of the International Commission on Stratigraphy of the International Union of Geological Sciences. The International stratigraphic column is given as an Annexure. The evolving concepts of stratigraphic classification and nomenclature are reflected in the relevant definitions. In addition, some stratigraphic unit names found in geological literature or proposed elsewhere have also been included.
ISBN - 9788172334613
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Pages : 156
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