Underground Mining Methods presents the latest principles and techniques in use today. Reflecting the international and diverse nature of the industry, a series of mining case studies is presented covering the commodity range from iron ore to diamonds extracted by operations located in all corners of the world. Industry experts have contributed 77 chapters. This book is certain to become a standard for every practicing mining engineer and student alike. Sections include: General Mine Design Considerations, Room-and-Pillar Mining of Hard Rock/Soft Rock, Longwall Mining of Hard Rock, Shrinkage Stoping, Sublevel Stoping, Cut-and-Fill Mining, Sublevel Caving, Panel Caving, Foundations for Design, and Underground Mining Looks to the Future.

Un próspero hombre de negocios mexicano, José Fierro, quien también es agente secreto de la CIA, es involucrado en la investigación de un complot a nivel internacional, empezando por Tijuana, donde aparece asesinado un miembro de las fuerzas especiales del ejército americano y terminando en La Habana, pasando por San Diego y Moscú, donde se desarrolla parte de la intriga. José Fierro tiene que hacer uso de todo su talento para lograr sobrevivir y evitar que el atentado desemboque en una conflagración mundial con alcances nucleares.

This interdisciplinary monograph explores the discursive manifestations of the conflict over how to remember and interpret the actions of the military during the last dictatorship in Uruguay (1973-1985). Through the exploration of the discursive ways in which this powerful group represents past events and participants, we can trace the ideological struggle over how to reconstruct a traumatic past. By looking at memory as a social and discursive practice, the analysis identifies particular semiotic practices and linguistic patterns deployed in the construction of memory. The discursive description of what is remembered, how it is remembered, and who remembers serves to explain how the institution s construction of the past is transformed and maintained to respond to outside criticism and create an institutional identity as a lawful state apparatus. This book should interest discourse analysts, historians, sociologists and researchers in the field of transitional justice.

This book is the first comprehensive account in English of the geology of Chile, providing a key reference work that brings together many years of research, and written mostly by Chilean authors from various universities and other centres of research excellence. The 13 chapters begin with a general overview, followed by detailed accounts of Andean tectonostratigraphy and magmatism, the amazingly active volcanism, the world class ore deposits that have proven to be so critical to the welfare of the country, and Chilean water resources. The subject then turns to geophysics with an examination of neotectonics and earthquakes, the hazardous frequency of which is a daily fact of life for the Chilean population. There are chapters on the offshore geology and oceanography of the SE Pacific Ocean, subjects that continue to attract much research not least from those seeking to understand world climatic variations, and on late Quaternary land environments, concluding with an account examining human colonization of southernmost America. The geological evolution of Chile is the c. 550 million year history of a continental margin over 4000 km long. During his voyage on H.M.S. Beagle, an extended visit to Chile (1834-35) had a profound impact on Charles Darwin, especially on his understanding of volcanoes, earthquakes and tsunamis.

Este libro de cuentos nos lleva desde las aldeas más primitivas en las partes más profundas de las selvas de Colombia hasta Miami, donde se combaten las batallas entre el bién y el mál. El Fantasma Guerrero transporta al leyente por dentro de la mente de un asesinato de la CIA, cuya mission es matar a los villanos más malos del mundo. ¿Cómo puede éste asesinato vivir en un mundo de muerte y destrucción, y todavia entrar en un mundo de emoción y ternura, con comodidad, sin renunciar su profesion eligida? Quizás se encuentran algunas de las respuestas en su relación con su querida Angelita. ¿Cuando uno te rescata de la muerte, se transforma en tu angel guardian? Esta es una novella de la eternal lucha del bién en contra del mál, y como un hombre, quién nunca creyó que se permitiriá a querer a una mujer, descubrió que sí, fue possible.

Coyame is the wide-ranging account of a small town in Mexico. The author provides readers with a panoramic view of history from the Mayans to the Villa revolutionaries and beyond. The history of the region is brought into stark detail with the inclusion of the tales, legends, and family histories of Coyame’s colorful residents. Morales presents the information with great care and passion; both historians and casual readers will benefit from the candor and whimsy that mark this unique contribution.