One excellent reason is that it’s tried and true. Physical Geology: Earth Revealed is a classic in introductory geology classes that has evolved into a market-leading text read by thousands of students. Proportionately, geology instructors have relied on this text to explain, illustrate, and exemplify basic geologic concepts to both majors and non-majors. Today, the 7th edition continues to provide contemporary perspectives that reflect current research, recent natural disasters, unmatched illustrations, and unparalleled learning aids. We have worked closely with contributors, reviewers, and our editors to publish the most accurate and current text possible. The most exciting element of the new edition is the presentation of 300 new illustrations, created by the artistic skill of Cindy Shaw. Ideas that shaped the development and articulation of new figures resulted from the numerous recommendations of a group of geology instructors. <...>

The Earth is a dynamic planet that has changed contin- uously during its 4.6 billion years of existence. The size, shape, and geographic distribution of the continents and ocean basins have changed through time, as have the atmosphere and biota. Over the past 20 years, bold new theories and discoveries concerning the Earth's origin and how it works have sparked a renewed interest in geology. We have become increasingly aware of how fragile our planet is and, more importantly, how inter- dependent all of its various systems are. We have learned
that we cannot continually pollute our environment and that our natural resources are limited and, in most cases, nonrenewable. Furthermore, we are coming to realize how central geology is to our everyday lives. For these and other reasons, geology is one of the most important college or university courses a student can take. <...>

Nearly everyone, at some time in his or her life, will have stood on a  sea beach and watched how the waves repeatedly disturb and then deposit the sand grains, whilst the wind, blowing freely over the drier parts of the beach, gathers up some of the sand and sweeps it inland to form tall dunes.

This particular case, one from common experience, serves very well to introduce the general topic of this book, namely, the dynamic interactions, in natural surroundings, between detrital particles and moving fluids. These interactions, in which physical processes are of paramount importance, give us the depositional landscapes and seascapes with which we are familiar today and, at various removes in time, many of the sedimentary strata found in the earth's crust <...>

Saeed Farrokhpay Editorial for the Special Issue: “Physical Separation and Enrichment” 

Sunil Kumar Tripathy, Y Rama Murthy, Veerendra Singh, Saeed Farrokhpay and Lev O. Filippov Improving the Quality of Ferruginous Chromite Concentrates Via Physical Separation Methods

Jianwu Zeng, Xiong Tong, Fan Yi and Luzheng Chen Selective Capture of Magnetic Wires to Particles in High Gradient Magnetic Separation

Kwanho Kim and Soobok Jeong Separation of Monazite from Placer Deposit by Magnetic Separation

Yuekan Zhang, Peikun Liu, Lanyue Jiang, Xinghua Yang and Junru Yang Numerical Simulation of Flow Field Characteristics and Separation Performance Test of Multi-Product Hydrocyclone