The physical and mechanical properties of clay materials required to scale the tectonic analogue experiments are analysed based on the modern soil mechanics concepts. A practical procedure for the determination of these properties is presented. Scaled clay experiments under Riedel shear mechanism produced a series of typical pull-apart structures. At the initial stages of the development of the deformation zone within the clay slab, the synthetic shear fractures (Riedel shears) display dilatational behaviour.

Most of the deformation on Earth is concentrated in relatively narrow high-strain zones (e.g. plate boundaries). The purpose of this volume was to address different aspects dealing with high-strain zones, from the map scale to the processes active in high-strain zones to the physical properties of highly strained rocks. Several of the contributions were originally presented in a special session entitled 'High-Strain Zones' at the EGSAGU-EUG meeting 2003 in Nice, France, which inspired the compilation of this book. <...>

Structural data is vital for the understanding of the geometry and evolution of a deposit and feeds into geologic, structural, resource, and geotechnical models. Accurate models are critical for targeting, resource estimation, and geotechnical design and, if rapidly available, support real-time decisions on drilling and grade control. 

This volume arises from papers and posters presented at the International Conference on Fault-Related Folding in Foreland Basins held in Beijing in 2005 and organized by Vice President Chengzhao Jia of the Research Institute of Petroleum Exploration and Development (RIPED) of PetroChina and Professor John Suppe of Princeton University and the Tarim Oilfield Company of PetroChina, and researchers from Nanjing and Zhejiang Universities in China.

w. F. Brace's career has several parallels with the institution from which all his degrees were granted. Both emphasized fundamental training in sciences, mathematics, physics, chemistry and the rigorous application ofthat training to applied problems. Both demand scrupulous attention to data collection, followed by aggressive interpretation of the implications of the data. Both flirted with Harvard. Early in this century, M.I.T. almost became Harvard's engineering school. During his doctoral research, Brace took Courses and advice from J. B. Thompsen and others at Harvard; and he returned later to do postdoctoral work with Francis Birch. <...>

Each of the following pages contains a protractor for a specific size of drill core. 

Choose the appropriate chart for the drill core size. Check the core diameter to choose the appropriate template within each core size grouping.

The protractors are in two groups: beta angle protractors and alpha/beta angle protractors. In practice I find that the beta angle protractor alone is best as it is least cluttered with lines (and alpha angles are easily measured using a protractor). <...>

• Drill core measurement procedures

• Geometrical relationships

• Using GeoCalculator to solve the geometry

• Manual stereographic plotting procedures

• Introduction to HCA wrap-around beta angle protractor templates

Inadequate observation of sedimentary structures has been responsible for incorrect interpretation of the order of superposition in deformed beds and this has led, in turn, to gross errors in stratigraphy and structure. Failure to recognize and utilize those structures which indicate direction of current flow has also led to incorrect, or at least incomplete, understanding of basin development.

Structural geology is the branch of earth sciences that focuses on understanding the processes by which geological materials deform. Structural geologists use the rock record to study naturally deformed rocks, an endeavor that relies upon both fieldwork and, to an increasing degree, the use of microstructural observations to characterize deformed rocks. Other academic disciplines – such as branches of geophysics, engineering, materials science, and physics – share the goal of characterizing and understanding how natural materials deform. Those fields focus on laboratory deformation experiments or theoretical models of material behavior.