A century has passed since the first X-ray diffraction experiment (Friedrich et al.1912). During this time, X-ray diffraction has become a commonly .used technique for the identification and characterization of materials and the field has seen continuous development. Advances in the theory ofdiffraction, in the generation o…
Archaeological geophysics is not the kind of research one can do alone. Every project I have worked on, whether field research, data processing, or software development, has involved someone in a crucial capacity towhom.I owe a great deal. My great thanks go to Ieffrey Lucius at the U.S. Geological Survey in Denver, Colorado, who first held my…
There is a new breed of superhero in, the world, and you are one of them. These new superheroes are part of a special club. Not the Justice League, nor theAvengers, They are GPR practitioners. Congratulations on beirig part of this exclusive club! I am not calling you a superhero for the reason you probably think.Yes, you h…
In the field of applied geophysics, the geoelectric methods have been important for about a century, particularly for shallow and near-surface investigations. Geoelectric methods are used extensively to locate buried targets that are conductive and resis• tive in nature. The purpose of active geoelectric surveys is to determine the subsur• face …
Ground Penetrating (or Probing) Radar, more commonly known as GPR, is sirriply one of the most useful geophysical techniques available to engineers and scientists;' It allows us to detect what lies beneath the ground or within buildings. It is primarily a safety aide since it' is used to prevent potentially dangerous situations arising or for the de…
when I first got involved with GPR and its uses in archaeology in the late 1980s, it was a very lonely world, with only a few collaborators with whom I could compare ideas, share data, and work jointly in developing processing and in• terpretation methods. I was fortunate to have had Dean Goodman and Jeff Lucius as friends and collaborators, and…
Central Indonesia consists of an assortment of micro continents amidst micro- oceanic plates. The map in Fig. 2.0-1 is based mainly on interpretation of various authors, checked for accuracy by bathymetric, Bouger gravity, and surface geology maps as well .. Deep sea basins are generally underlain by an oceanic crust. This is supported by …
Diamonds have inspired dreams of wealth and power throughout history. Until modem times, most diamonds were insignias of royalty and were beyond the reach of the com• mon person, who could only elicit visions of the astounding beauty and wealth brought forth by diamonds. It's no wonder that other gems and precious metals have historically taken a…
During the last few decades coal chemistry and coal petrology have developed as special fields of research, of equal importance from both the scientific and practical viewpoints. Until the nineteen twenties coal chemists used to examine coal as a whole. However, after coal petrographers had. discovered tha…