Th e book MATLAB Recipes for Earth Sciences is designed to help undergraduate and postgraduate students, doctoral students, post-doctoral researchers, and professionals fi nd quick solutions for common data analysis problems in earth sciences. It provides a minimal amount of theoretical background and demonstrates the application of all described methods through the use of examples.

The discrete element method can effectively simulate the discontinuity, inhomogeneity, and large deformation damage of rock and soil. It is widely used in both research and industry. Based on the innovative matrix discrete element computing method, the author developed the high-performance discrete element software MatDEM from scratch, which can handle millions of elements in discrete element numerical simulations. This book introduces the basic structure, modeling methods, numerical calculation processes, post-processing, and system functions of MatDEM, which applies the basic principles and algorithm of the discrete element method. It also presents several examples of applications in geological and geotechnical engineering, including basic geotechnical engineering problems, discrete element tests, three-dimensional landslides, and dynamic and multi-field coupling functions. Teaching videos and the relevant software can be accessed on theMATDEM website (http://matdem.com).

The book will serve as a useful reference for research and engineering staff, undergraduates, and postgraduates who work in the fields of geology, geotechnical, water conservancy, civil engineering, mining, and physics.

This report (the “Report”) was prepared for Lithium Americas Corp. (the “Company” or “LAC”) to document the methods and results of a Measured, Indicated and Inferred Resource Estimate on mineral claims held by the Company. The estimate applies to lithium and potassium contained in brine within the basin of the Olaroz and Cauchari Salars, two adjacent salt lakes in the Jujuy Province of northwestern Argentina. <...>

The physical theories behind Measurement-While-Drilling design should be rich in scientific challenges, engineering principles and mathematical elegance. To develop the next generation of high-data-rate tools, these must be understood and applied unfailingly without compromise. But one does not simply peruse the latest petroleum books, state-of-the-art reviews, or the most recent patents to understand their teachings. Most descriptions are just wrong. The science itself does not exist.