Gems and Gem Minerals
by Oliver C. Farrington
Publisher: A. W. Mumford 1903
Number of pages: 302
Where do they come from? What are they made of? How can they be distinguished? What is their value? The subject as a whole has been treated from the mineralogical standpoint, as this affords the best basis for a thorough knowledge of gems.
Home page url
Download or read it online for free here:
by Robert I. Tilling - U. S. Geological Survey
This booklet presents a generalized summary of the nature, workings, products, and hazards of the common types of volcanoes around the world, along with a brief introduction to the techniques of volcano monitoring and research.
by Renaud Toussaint, et al. - arXiv.org
Stylolites are ubiquitous geo-patterns observed in rocks in the upper crust, from geological reservoirs in sedimentary rocks to deformation zones, in folds, faults and shear zones. These rough surfaces play a major role in the dissolution of rocks...
This book has a single purpose: to explain how it is even possible to reconstruct the history of the Earth from data available in the present. The emphasis is methodological: rather than explaining what is known, we shall look at how it is known.
by Dawei Han - BookBoon
This is an introductory book on hydrology that covers hydrological cycle, precipitation analysis, evaporation and evapotranspiration processes, infiltration, ground water movement, hydrograph analysis, rainfall runoff modelling, etc.