 | | Report (issue) | | Structural Evolution of the Northernmost Andes, Colombia GEOLOGICAL SURVEY PROFESSIONAL Prepared in...Geologico-MineTas under the auspices of the Government of Colombia and the Agency for International Development)... Structural Evolution of the Northernmost Andes, Colombia By EARL M. IRVING GEOLOGICAL SURVEY PROFESSIONAL...Government of Colombia and the Agency for International Development) United States Department of State An...PRINTING OFFICE, vVASHINGTON 1975 UNITED STATES DEPARTMENT OF THE INTERIOR ROGERS C. B. MORTON, Secretary |  | | Book | | Consulting Geologist Department of Geology University EAFIT Medellín, Colombia Robert Peter Shaw Consulting...Tectonics Colombia 1938–1946 “Unique – a dream” Highlights • Key geological realms in Colombia were the...to Northwestern South America 1938 – Der Nevado del Cocuy: Columbianisches Bergerlebnis (selfpublished)...The Ganssers had four daughters (Ursula, born in Colombia, 1941; Manuela, 1949; Francesca, 1956; and Rosanna...and two sons (Mario, born in Colombia, 1943; Luca, also born in Colombia, 1945). In 2000, Gansser’s dear |  | | Report (chapter) | | individual structural zones 1. Western Cordillera 2. Cauca Basin 3. Central Cordillera 4. Middle Magdalena...Phanerozoic time. To the north the three cordillera of Colombia bifurcate, linking both with Central America via...eugeosynclinal Cretaceous sediments and volcanics. In the Cauca Basin (zone 2) similar rocks are covered by thick... -va c) g Figure 1. Geological Provinces of Colombia showing the Segment of the Andes under consideration...mgal - ve north of Lat. 5 ° +ve south of Lat. 5 ° Cauca Basin (zone 2) - 25 to - 75 regal Central Cordillera |  | | Report (issue) | | metamorphic belt in the Central Cordillera of Colombia. W. J. McCourt. 22 High-pressure metamorphic rocks...rocks in the Central Cordillera of Colombia. W. J. McCourt and T. Feininger. 28 Accretionary lapilli...grade metamorphic minerals which include quartz, albite feldspar, sericite and ripidolite 3 Brittany...metamorphic belt in the Central Cordillera of Colombia W. J. McCourt CONTENTS SUMMARY Summary 22...metamorphic belt in the Central Cordillera of Colombia. Broadly speaking the metamorphic rocks of the |  | Naranjo, Andrés, Horner, Johannes, Jahoda, Rudolf, Diamond, Larryn W., Castro, Adriana, Uribe, Aura, Perez, Carolina, Paz, Hermel, Mejia, Carlos, Weil, Jonas (2018) La Colosa Au Porphyry Deposit, Colombia: Mineralization Styles, Structural Controls, and Age Constraints. Economic Geology, 113 (3) 553-578 doi:10.5382/econgeo.2018.4562 | Journal (article/letter/editorial) | | 113 May No. 3 La Colosa Au Porphyry Deposit, Colombia: Mineralization Styles, Structural Controls, and...AngloGold Ashanti Colombia, Carrera 19 Sur 162-70, Ibagué, Tolima 050026, Colombia 2 iC 3 Institute...flank of the Central Cordillera of Colombia, within the Middle Cauca metallogenic belt. The deposit contains...quartz and pyrite with centimeter-wide halos of albite-sericite-pyrite overprinting all other alteration...increases from 0.3 to 1.2 g/t Au. Introduction Colombia has been a major gold producer since precolonial |  | | Report (chapter) | | setting. The study of Cretaceous volcanic rocks in Colombia, Peru and Chile indicates that: (i) ocean-floor...Cretaceous volcanic sequences: (i) the Diabase Group in Colombia; (ii) the Casma Group in Peru; (iii) the Ocoite...Group (Northern Andes) The Western Cordillera of Colombia is largely made up of fault-bounded blocks of...quartz + chlorite + albite (b) laumontite + pumpellyite + chlorite + quartz + albite (c) laumontite + pumpellyite...pumpellyite + prehnite + chlorite + quartz + albite tina , ,,., f tt"" whereas in the prehnite-pumpellyite |  | | Book | | they are found mainly along the Cordillera, from Colombia down to the Straits of Magellan" (1842, p. 238)...mentioned a series of fossils, some of which -those of Colombia- he considered Neocomian. The outstanding capability...announce in 1842 that five of the fossil species from Colombia were identical to those known in the Paris basin...Northern South America J. L. Pindell, J. P. Erikson Department of Earth Sciences, Dartmouth College, Hanover...geological history of northern South America from Colombia to Trinidad, concentrating on the tectonic controls |  | | Journal (article/letter/editorial) | | actinolite. These minerals are commonly accompanied by albite, K-feldspar and quartz. The possibility of using...marginal basin. (a) Northern Andes: Diabasic Group, Colombia; (b) Central Andes: Casma Group (northern unit)...Atherton & Aguirre (1992). (1) = Diabasic Group (Colombia); (2) = Celica Formation (Ecuador) and Casma Group...GRMS = GuayaquilRomeral Megashear System; CL = Colombia; E = Ecuador; P = Peru; CH = Chile. 1976; Deer...pervasively altered (containing no plagioclase other than albite) have been selected; (c) equilibrium assemblages |  | | Journal (article/letter/editorial) | | ROBERT B. COOK Department of Geology Auburn Universit Spodumene var. Kunzite Downloaded by [Selcuk Universitesi]...Minerals, is a professor of geology and head of the Department of Geology at Auburn University,Auburn, Alabama...microscopic alteration products as micas and the mica-albite mixture known as “cymatolite.” Spodumene does not...esthetic kunzite crystal sits upright on a base of albite and associated elbaite. The specimen, which is...kunzite include pegmatites at Taquaral and Olho Dagua. Very fine gem-quality spodumene has occasionally |  | Hodges, C.A., Cox, D.P., Singer, D.A., Case, J.E., Berger, B.R., Albers, J.P. (1984) U.S. Geological Survey-INGEOMINAS mineral resource assessment of Colombia. Open-File Report Vol. 1984 (84-345) US Geological Survey doi:10.3133/ofr84345 | Report (issue) | | UNITED STATES DEPARTMENT OF THE INTERIOR GEOLOGICAL SURVEY U.S. GEOLOGICAL SURVEY-INGEOMINAS MINERAL...MINERAL RESOURCE ASSESSMENT OF COLOMBIA By Carroll Ann Hodges, Dennis P. Cox, Donald A. Singer, James E. Case...Summary 1 Introduction 2 Geologic framework of Colombia 5 Selected deposit types (classification number...Resource Domains of Western Colombia 2. Mineral Resource Domains of Eastern Colombia Figure 1. 2-19. Geologic...Geologic provinces of Colombia 4 Domains permissive for given deposit types, as labeled 2. Podiform |  | | Journal (article/letter/editorial) | | conglomerate of Tertiary age on the Guajira Peninsula of Colombia (Green et al., 1968). On the Pacific shore of...paper presented at a field conference in Medellin, Colombia (Duque & Feininger, 1974). An unpublished, preliminary...boundary as well. To the north, in Ecuador and Colombia, basement rocks west of the main Andean ranges...Mineria, 1969) and the Grupo Dagua and Formation Diabasica in Colombia (Servicio Geologico Nacional,...present in all samples, include chlorite, sphene, albite, and calcite. Glaucophane forms sub- to anhedral |  | | Report (issue) | | J. W., in press a, The Rio Abajo, Pitahaya, and Dagua Forma6 tions in eastern Puerto Rico: 7 ffl'Gonigle...Groundmass is an intricate intergrowth of quartz albite and oligioclase. X-ray diffraction indicates that...confirmed optically. Phenocrysts of plagioclase are albite and oligioclase in crystals about 1-4 mm in length |  | | Book | | south, the mountains of Trinidad, Venezuela, and Colombia—have been known and described by geologists, but...and T. Wayland Vaughan is his greatest disciple! Colombia and Venezuela comprise the least-known area of...with some alterations. Much of our knowledge of Colombia we owe to the many German geologists who have...Hydrographic Office. In the preparation of the chapter on Colombia and in parts of that on Mexico, I have had the...our Yale graduates in geology, who was sent to Colombia by the Texas Company in 1930. On his return, he |  | | Book | | Antarctica 12 Regional setting Venezuela 125 Colombia 127 Ammonite zones of the circum-Pacific region...Ciencias Naturales, Paseo del Bosque, 1900 La Plata, Argentina W. K. Braun Department of Geology, University...Saskatoon, Saskatchewan S7N OWO, Canada M. B. Gordon Department of Geological Sciences, The University of Texas...Austin, Austin, TX 78713-7909, USA M. M. Brooke Department of Geological Sciences, University of Saskatchewan...Correo 25, 8300 Neuquen, Argentina J. H. Callomon Department of Chemistry, University College London, 20 Gordon |  | | Book (volume) | | Publisher CONTRIBUTORS TO TmS VOLUME Luis Aguirre Department of Geology University of Liverpool Liverpool...Geological Survey Nottingham, England Geology Department Chinese Cultural University Yangmingshan, Taiwan...Texas at Austin Austin, Texas Sam Boggs, Jr. Department of Geology University of Oregon Eugene, Oregon...University of Tokyo Tokyo, Japan John Milsom Department of Geological Sciences University of London London...Pacific Margin from Southern Mexico to Northwestern Colombia Gabriel Dengo I. Introduction ............... |  | | Report (issue) | | important respect. It is not attached to a Government Department concerned primarily with Natural Resources but...concerned with a part of' those resources. Each such Department thus cornn1issions the BGS to do its geological...constraints, from geological survey research. The Department of Energy (DEn) is still strongly supportive...hydrocarbons and geothermal energy potential. The Department of Trade and Industry (DTI) continues to support... but many proposals cannot be supported. The Department of the Environment (DOE) has, most of all, needed |  | | Book (volume) | | Stratton, Manager of ESE 's Information Services Department and to her highly efficient and talented staff...Continental Margin Province, Western Cordillera of Colombia, S.A .. ... ... .... .......... ..... .... .....FROM THE BEND IN THE ROAD JOHN DREW RIDGE 0 Department of Geology. University of Florida, Gainesville...addition to H20, on the melting temperatures of albite and granite: An1er. Jour. Sci., v. 262, p. 930-939...AULACOGENS IN AFRICA-A REVIEW MOSES A. OLADE Geology Department, University of Ibadan, Iba |  | | Book | | 14:157168 ALBITE Davis Hill near Bancroft, Ontario: an occurrence of large nepheline, biotite and albite-antiperthite...Connecticut (by W. A. Henof large nepheline, biotite and albite-antiperthite derson, Jr.) 6:114-123 crystals in...Moyd) BERYL 21:235-248 Emerald [beryl] mining in Colombia: history and BIRCH, WILLIAM (BILL) D. geology...Rouse) 5:280-287 BOLIVIA The mineralogy of the department of Oruro, Bolivia (by R. B. Cook, Jr.) 6:125-137...of creedite at Colquiri, Inquisivi province, department of La Paz, Bolivia (by R. B. Cook, Jr.) 6:278-281 |  | | Journal (volume) | | akd eChde DPE a dome ti hema Sk be dea i HOLL a del deeds dean ac WebtWee orok te be Ye| pte oa i) PA...ASF; UTE BES X 5» ? J BOARD WILuIAM J. PETERS DEPARTMENT OF TERRESTRIAL OF EDITORS AGNES CHASE MAGNETISM...Sinclairiana Benth., described from Gorgona Island, Colombia, is, to judge from its description, closely related...Museum, who are engaged in botanical exploration in Colombia, have had headquarters for several weeks at Cartagena...GEOLOGICAL OF EDITORS S. J. MaucuLy SURVEY DEPARTMENT OF TERRESTRIAL ASSOCIATE AGNES MAGNETISM |  | | Journal (volume) | | GEOLOGICAL OF EDITORS S. J. Maucstiy SURVEY DEPARTMENT OF TERRESTRIAL ASSOCIATE SOCIETY ENTOMOLOGICAL...Hewerr - S. J. Maucuiy GEOLOGICAL SURVEY DEPARTMENT OF TERRESTRIAL MAGNETISM ASSOCIATE EDITORS... Costa Rica, and Colombia. THos. E. Snyper, Bureau of Entomology, U. S. Department of Agriculture. The...(Calcaritermes) emminens Snyder and recessifrons Snyder from Colombia or guatemalae Snyder from Guatemala and Costa...either zmminens Snyder or recessifrons Snyder from Colombia. Soldier—Head castaneous to piceous on front, |  | | Journal (volume) | | Survey for several months to take up work with the Department of Marine Biology of the Carnegie Institution...Popenoe, agricultural explorer for the U. S. Department of Agriculture, returned to Washington in November...a two years' absence in Guatemala, Costa Rica, Colombia, Ecuador, Peru, and Chile. 24 JOURNAL OF THS...in vania. George StreETER, director of the Department of Embryology Washington, gave an illustrated...spending several months as research assistant at the Department of Terrestrial Magnetism, Carnegie Institution | | | Journal (volume) | | Survey for several months to take up work with the Department of Marine Biology of the Carnegie Institution...Popenoe, agricultural explorer for the U. S. Department of Agriculture, returned to Washington in November...a two years' absence in Guatemala, Costa Rica, Colombia, Ecuador, Peru, and Chile. 24 JOURNAL OF THS...in vania. George StreETER, director of the Department of Embryology Washington, gave an illustrated...spending several months as research assistant at the Department of Terrestrial Magnetism, Carnegie Institution |
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