Geology and Tectonics of Northwestern South America

occurrences at the regional through district and deposit scales Offers a new data-supported definition of the Northern Andean Orogeny and its relationship with the Pacific Plate, Caribbean Plateau and the Panamá-Chocó Arc Provides the first comprehensive overview of the geology of the NW corner of South America, i.e. the Northern Andean Block Depicts key Proterozoic Phanerozoic tectonic events documented by field stratigraphic and structural surveys, as well as geophysical studies Presents for the first time a complete picture of the magmatic (lithogeochemical, radiogenic isotope, U-Pb radiometric age) evolution of the region, spanning the entire Phanerozoic. Includes complete supporting age, lithogeochemical and isotope data (including XYZ sample coordinates), and new structural field transects, in composite digital appendices, within spreadsheets and detailed geological cross sections Includes a detailed tectono-metallogenic analysis of the Colombian Andes in time and space, including precise age determinations, alteration and paragenetic studies, metallotect reconstructions and detailed descriptions of many important, previously undocumented precious- and base-metal

Auteur

· Dr. Fabio Cediel: Studied engineering and chemistry at Fort Belvoir, Virginia, the University of Maryland (USA), the Ecole Polytechnique (Paris, France) and the Technische Hochschule Karlsruhe, (Karlsruhe, Germany) from 1953 to 1957. He was awarded a DAAD (German Academic Exchange Service) scholarship, and between 1960 and 1967 completed investigations at the Universität Stuttgart, Institut für Geologie (Germany) where he was obtained his Dipl.-Geol. and Doctor rerum natura (Dr. rer. nat.) for studies completed on Jurassic stratigraphy in the Murcia Province, Spain and the Eastern Cordillera, Colombia. Returning to Colombia, Cediel implemented regional studies of Paleozoic and Mesozoic stratigraphy, pioneering the application of paleo-geographic and tectonic analysis in the understanding of the geological evolution of the Colombian Andes.

In 1969, as co-founder of the geological consultancy GEOTEC, Cediel et al. published the first edition ofthe GEOTEC Geological Map of Colombia, and initiated a longstanding technical relationship with the petroleum and mineral resource exploration sectors. Field-based studies related to hydrocarbon and mineral exploration led to extensive mapping in the onshore Caribbean, and detailed surveys throughout the Guajira Peninsula. As well, they permitted the undertaking of key field transects beyond Colombia, in the Andes of Ecuador, Bolivia and Chile, as well as participation in the formulation of exploration projects in Venezuela and NE Brasíl.

Fabio Cediel most recently served as Senior Editor and co-author for the 15 volume set Petroleum Geology of Colombia, published by EAFIT University. Important works in which he has served as principle author include; Facies Distribution and Tectonic Setting through the Phanerozoic of Colombia (INGEOMINAS, 1994), Seismic Atlas of Colombia: Seismic Expression of Structural Styles in the Basins of Colombia (GEOTEC 1998), Geological Map of Colombia (GEOTEC 2000), and Tectonic Assembly of the Northern Andean Block (AAPG Memoir 79 2003). He is currently a member of the Colombian National Academy of Sciences and the Colombian Association of Petroleum Geologists and Geophysicists. He has served as President to the Colombian Geological Society (1968), Delegate to the International Oceanographic Committee, Paris (1969), Editor of Geological Field Trips, Colombia (1959-1978), President of the Professional Geologists Council of Colombia (CPG, 1984-1986), and Scientific Advisor to INGEOMINAS (2002-2003) and ECOPETROL (2004). From 1968 through 1979, he served as Assistant and Associate Professor at the Universidad Nacional de Colombia (Bogotá). Robert P. Shaw: Robert Shaw is generative exploration geologist, specializing in the search for metalliferous mineral deposits, with over 25 years of applied experience throughout the cordilleran regions of South and Central America. He holds a B.Sc. inGeology with First Class Honours (1987) and M.Sc. with specialization in Economic Geology (1990), both from the University of Alberta, Canada, where he also worked as a Research Associate and Sessional Lecturer.

Based in Medellín from 1994 through 2015, he formed the vanguard of the recent mineral exploration sector in Colombia, completing extensive field-based technical evaluations throughout the Colombian cordilleran region. From 1999-2010 he was affiliated with Bogotá-based GEOTEC, consulting to numerous companies in the petroleum and mineral resources sectors, whilst from 2000-2003 he acted as Structural Geology and Tectonics Consultant to the Geological Survey of Canada - Multi-National Andean Program, in Peru, Ecuador and Colombia.

During this period he presented on Colombian tectonics and mineral deposits at numerous conferences in North and South America. Works in which he has served as principle or co-author include; Gold mineralization in the Northern Andes:Magmatic Setting vs. Metallogeny (2000), A Paleo-Tectonic Analysis of Volcanogene and Sediment-hosted Base Metal Potential in the Colombian Cordilleras (2003), Towards a Litho-tectonic Analysis of Metallogeny in Colombia (2003), Tectonic Assembly of the Northern Andean Block (2003) and Phanerozoic Granitoid Magmatism in Colombia and the Tectono-magmatic Evolution of the Colombian Andes (2011).

From 2003-2010 he was Chief Geologist (Colombia) for AngloGold Ashanti, where in addition to supervising field-based exploration at the regional scale, he implemented a program of academic research and technical investigation applicable to the integral understanding of Colombian metallogeny throughout the Phanerozoic. During this tenure he participated in the planning, coordination, supervision and execution of a Ph.D. and numerous M.Sc.-level graduate theses, completed at the Universitat de Barcelona, Spain, Universidad Nacional, Colombia, Rhodes University, South Africa, University of Arizona, U.S.A., and the Universidade de Sao Paulo, Brasil. He continues to collaborate in exploration and investigation of Colombian mineral deposits, based out of Kelowna, British Columbia.

Résumé

Contenu
Part I.Regional Overview.- Chapter 1. Phanerozoic orogens of NW Southamerica: Cordilleran Type Orogens, Taphrogenic tectonics and the Orogenic Float.- Chapter 2. Phanerozoic orogens of NW Southamerica: Cordilleran Type Orogens, Taphrogenic tectonics and the Orogenic Float.- Part II.The Guiana Shield and the Andean Belt.- Chapter 3. The Proterozoic basement of the Western Guiana shield and the Northern Andes.- Part III.Early Paleozoic Tectono-Sedimentary History.- Chapter 4.Ordovician orogeny and jurassic low-lying orogeny in the Santander Massif, Northern Andes (Colombia).- Part 4. Major Tectono-Magmatic Events.- Chapter 5.Phanerozoic Granitoid magmatism and tectono-magmatic evolution in the Colombian Andes.- Chapter 6.Phanerozoic metallogeny in the Colombian Andes: a tectono-magmatic framework.- Chapter 7.Paleogene Magmatism of the Maracaibo block and its tectonic significance.- Chapter 8.Late cenozoic to modern-day volcanism in the Northern Andes: A geochronological, petro-graphical and geochemical review.- Part 5.The Northern Andean Orogen.- Part 5.The Northern Andean Orogen.- Chapter 9.Diagnostic structural features of NW South America: Structural Cross-Sections Based Upon Detailed Field Transects.- Chapter 10.Cretaceous stratigraphy and paleo-facies maps of Northwestern South America.- Chapter 11.Morphotectonics and orogenic development of the Northern Andes of Colombia: A low-temperature thermochronology perspective.- Chapter 12.The Romeral shear zone.- Part 6.Continental Uplift-Drift.- Chapter 13.Thermochronology, uplift-exhumation of the Merida Andes, Santander Massif - Perija and Si-erra Nevada De Santa Marta. A Regional…