No. Registros Solicitud 1 5614 colombia
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AU - AUTHORS: Mook-Charles-C SO - SOURCE: U. S. Natl. Mus., Pr.. 91; 3122, Pages 55-58. 1941. PY - PUBLICATION YEAR: 1941 LA - LANGUAGE: English AB - ABSTRACT: The remains found in Cretaceous? strata near Neiva, Colombia, are referred to the genus Dinosuchus Gervais 1876, and the new specific name neivensis given to them. DE - DESCRIPTORS: Chordata-; Colombia-; Cretaceous-; Dinosuchus-; Mesozoic-; Neiva-; paleontology-; Reptilia-; South-America; Tetrapoda-; Vertebrata- CC - CATEGORY CODES: 11-Vertebrate-paleontology DT - DOCUMENT TYPE: Serial BL - BIB LEVEL: Analytic IL - ILLUSTRATION: 6 pls. RF - REFERENCE SOURCE: GeoRef, Copyright 2000, American Geological Institute. Reference includes data from Bibliography and Index of Geology Exclusive of North America, Geological Society of America, Boulder, CO, United States AN - ACCESSION NUMBER: 1942-002062 UD - UPDATE CODE: 1942 Registro 3266 de 5614 - GeoRef Disc 1: 1785-1974 TI - TITLE: La cuenca Carbonifera del Cerrejon (departamento del Magdalena). AU - AUTHORS: Oppenheim-Victor SO - SOURCE: 121-144; Pages 65-80. 1941. NT - NOTES: Bol. Minas y Petrol., Bogota PY - PUBLICATION YEAR: 1941 LA - LANGUAGE: Spanish AB - ABSTRACT: Stratigraphy and tectonics of the coal basin of Cerrijon, Colombia. Jurassic and Cretaceous rocks are thrust upon coal-bearing Eocene beds of considerable extent. Reserves are estimated and coal analyses are given. DE - DESCRIPTORS: Cenozoic-; Cerrejon-; Cerrejon-coal-basin; coal-; coal-basin; Colombia-; Cretaceous-; economic-geology; Eocene-; geologic-maps; historical-geology; Jurassic-; Jurassic-Tertiary; maps-; Mesozoic-; organic-residues; Paleogene-; sedimentary-rocks; South-America; Tertiary- CC - CATEGORY CODES: 13-Areal-geology DT - DOCUMENT TYPE: Map BL - BIB LEVEL: Analytic MS - MAP SCALE: 1:75,000 IL - ILLUSTRATION: 1 fig., 2 pls. incl. colored geol. map . RF - REFERENCE SOURCE: GeoRef, Copyright 2000, American Geological Institute. Reference includes data from Bibliography and Index of Geology Exclusive of North America, Geological Society of America, Boulder, CO, United States AN - ACCESSION NUMBER: 1942-002253 UD - UPDATE CODE: 1942 Registro 3267 de 5614 - GeoRef Disc 1: 1785-1974 TI - TITLE: Geologia del sur de la Cordillera Oriental, entre los Llanos y el Magdalena. AU - AUTHORS: Oppenheim-Victor SO - SOURCE: Bol. Minas y Petrol., Bogota. 121-144; Pages 81-94. 1941. NT - NOTES: Acad. Colomb., Rev. v. 4, No. 14, p. 175-181, 1 fig., 3 pls. (incl. colored geol. map) PY - PUBLICATION YEAR: 1941 LA - LANGUAGE: Portuguese AB - ABSTRACT: A reconnaissance of the geology of the Cordillera Oriental between the Llanos and the Magdalena valley in Colombia. The rocks are chiefly Cretaceous and Tertiary with some Cambrian, possibly pre-Cambrian, metamorphic rocks. The structure is complicated by both normal and overthrust faulting. Both gold and petroleum are possibly of economic significance. DE - DESCRIPTORS: Andes-; Cambrian-; Carboniferous-; Cenozoic-; Colombia-; Cretaceous-; Devonian-; Eastern-Cordillera; economic-geology; faults-; geologic-history; geologic-maps; gold-; historical-geology; Jurassic-; Llanos-Magdalena-region; maps-; Mesozoic-; metals-; Ordovician-; Paleozoic-; petroleum-; Precambrian-; Quaternary-; South-America; tectonics-; Tertiary- CC - CATEGORY CODES: 13-Areal-geology DT - DOCUMENT TYPE: Serial; Map BL - BIB LEVEL: Analytic MS - MAP SCALE: 1:238,000 MP - MAP TYPE: colored-geologic-maps IL - ILLUSTRATION: 3 pls. RF - REFERENCE SOURCE: GeoRef, Copyright 2000, American Geological Institute. Reference includes data from Bibliography and Index of Geology Exclusive of North America, Geological Society of America, Boulder, CO, United States AN - ACCESSION NUMBER: 1942-002254 UD - UPDATE CODE: 1942 Registro 3268 de 5614 - GeoRef Disc 1: 1785-1974 TI - TITLE: Informe sobre las primeras materias para la industria ceramica, existentes en el oriente y centro de Antioquia. AU - AUTHORS: Royo-y-Gomez-Jose SO - SOURCE: 121-144; Pages 95-134. 1941. NT - NOTES: Bol. Minas y Petrol., Bogota PY - PUBLICATION YEAR: 1941 LA - LANGUAGE: Spanish AB - ABSTRACT: Many deposits of raw materials suitable for use in the ceramic industry are found in eastern and central Antioquia, Colombia. Rionegro is selected as a city most favorably situated to be a center for the ceramic industry by virtue of its position with respect to raw materials, spring waters, and communications. DE - DESCRIPTORS: Antioquia-Colombia; Carmen-de-Viboral; Ceja-del-Tambo; Ceramic-raw-materials; Ceramic-raw-materials,-Colombia,-Antioquia; Cocorna-; Colombia-; economic-geology; geologic-maps; maps-; Santuario-; South-America CC - CATEGORY CODES: 26-Economic-geology,-general DT - DOCUMENT TYPE: Map BL - BIB LEVEL: Analytic MS - MAP SCALE: 1:20,000 IL - ILLUSTRATION: 14 figs., 10 pls. incl. colored geol. maps and 1:40, 000. RF - REFERENCE SOURCE: GeoRef, Copyright 2000, American Geological Institute. Reference includes data from Bibliography and Index of Geology Exclusive of North America, Geological Society of America, Boulder, CO, United States AN - ACCESSION NUMBER: 1942-002557 UD - UPDATE CODE: 1942 Registro 3269 de 5614 - GeoRef Disc 1: 1785-1974 TI - TITLE: Informe sobre un dique de pegmatita existente en la quebrada Ciempesos, municipio de Envigado (Antioquia). AU - AUTHORS: Royo-y-Gomez-Jose SO - SOURCE: Bol. Minas y Petrol., Bogota. 121-144; Pages 135-146. 1941. PY - PUBLICATION YEAR: 1941 LA - LANGUAGE: Spanish AB - ABSTRACT: Microscopic and chemical study of the feldspars of a pegmatite dike in the Ciempesos valley, Envigado, Colombia, with particular attention to their use in the ceramic industry. DE - DESCRIPTORS: Ceramic-feldspar,-Colombia,-Ciempesos-valley,-Envigado; Ciempesos-valley; Colombia-; economic-geology; Envigado-; feldspar-; mineralogy-; South-America CC - CATEGORY CODES: 26-Economic-geology,-general DT - DOCUMENT TYPE: Serial BL - BIB LEVEL: Analytic IL - ILLUSTRATION: 7 figs. incl. geol. sketch map. RF - REFERENCE SOURCE: GeoRef, Copyright 2000, American Geological Institute. Reference includes data from Bibliography and Index of Geology Exclusive of North America, Geological Society of America, Boulder, CO, United States AN - ACCESSION NUMBER: 1942-002558 UD - UPDATE CODE: 1942 Registro 3270 de 5614 - GeoRef Disc 1: 1785-1974 TI - TITLE: Datos para la geologia economica del departamento del Huila. AU - AUTHORS: Royo-y-Gomez-Jose SO - SOURCE: Bol. Minas y Petrol., Bogota. 121-144; Pages 147-205. 1941. PY - PUBLICATION YEAR: 1941 LA - LANGUAGE: Spanish AB - ABSTRACT: Gives an account of the economic possibilities of the Magdalena valley, Huila, Colombia. The formations of the region, chiefly of Cretaceous and Tertiary age, are briefly noted. There follow extensive descriptions of the specimens of rocks, minerals, and fossils found. So-called "phosphates" are shown to be only sapropelic earths of little value; "alum" is but crusts and efflorescences of alunogen and halotrichite. However, there are good deposits of Cretaceous limestone. DE - DESCRIPTORS: carbonate-rocks; Cenozoic-; Colombia-; Cretaceous-; economic-geology; historical-geology; Huila-; limestone-; Magdalena-Valley; Mesozoic-; sedimentary-rocks; South-America; Tertiary- CC - CATEGORY CODES: 26-Economic-geology,-general DT - DOCUMENT TYPE: Serial BL - BIB LEVEL: Analytic RF - REFERENCE SOURCE: GeoRef, Copyright 2000, American Geological Institute. Reference includes data from Bibliography and Index of Geology Exclusive of North America, Geological Society of America, Boulder, CO, United States AN - ACCESSION NUMBER: 1942-002559 UD - UPDATE CODE: 1942 Registro 3271 de 5614 - GeoRef Disc 1: 1785-1974 TI - TITLE: Crustaceos y seudopteropodos del cretacico de Colombia. AU - AUTHORS: Royo-y-Gomez-Jose SO - SOURCE: Bol. Minas y Petrol., Bogota. 121-144; Pages 207-214. 1941. PY - PUBLICATION YEAR: 1941 LA - LANGUAGE: Spanish AB - ABSTRACT: Two new species of the cirreped Loricula are described from the Cretaceous Villeta formation of Colombia, L. colombiana from the Turonian and L. alvaradoi from the Albian. Few species of this genus are known and all previously described are from Europe and Syria. Some so-called pteropods are noted as remains of cirripeds and other animals. DE - DESCRIPTORS: Arthropoda-; Cirripedia-; Colombia-; Cretaceous-; Crustacea-; Invertebrata-; Loricula-; Mandibulata-; Mesozoic-; paleontology-; South-America; Villeta-formation CC - CATEGORY CODES: 10-Invertebrate-paleontology DT - DOCUMENT TYPE: Serial BL - BIB LEVEL: Analytic IL - ILLUSTRATION: 8 figs. RF - REFERENCE SOURCE: GeoRef, Copyright 2000, American Geological Institute. Reference includes data from Bibliography and Index of Geology Exclusive of North America, Geological Society of America, Boulder, CO, United States AN - ACCESSION NUMBER: 1942-002560 UD - UPDATE CODE: 1942 Registro 3272 de 5614 - GeoRef Disc 1: 1785-1974 TI - TITLE: El volcan de lodo del Puerto del Totumo (departamento del Atlantico). AU - AUTHORS: Tovar-Ariza-Rafael SO - SOURCE: Soc. Geog. Colombia, B.. 7; 1, Pages 35-37. 1941. PY - PUBLICATION YEAR: 1941 LA - LANGUAGE: Spanish AB - ABSTRACT: The Puerto del Totumo mud volcano in Atlantico department, Colombia, is an intermittent mud ooze which is pseudovolcanic in form. The gases which are emitted come from the adjacent Totumo marsh. DE - DESCRIPTORS: Colombia-; physiographic-geology; Puerto-del-Totumo-mud-volcano; South-America CC - CATEGORY CODES: 23-Geomorphology DT - DOCUMENT TYPE: Serial BL - BIB LEVEL: Analytic RF - REFERENCE SOURCE: GeoRef, Copyright 2000, American Geological Institute. Reference includes data from Bibliography and Index of Geology Exclusive of North America, Geological Society of America, Boulder, CO, United States AN - ACCESSION NUMBER: 1942-003063 UD - UPDATE CODE: 1942 Registro 3273 de 5614 - GeoRef Disc 1: 1785-1974 TI - TITLE: The emerald mines of Muzo, Colombia, South America. AU - AUTHORS: Clements-Thomas SO - SOURCE: Gems and Gemology. 3; 9, Pages 130-134. 1941. PB - PUBLISHER: Gemological Institute of America. Santa Monica, CA, United States. 1941. CP - COUNTRY OF PUBLICATION: United-States PY - PUBLICATION YEAR: 1941 LA - LANGUAGE: English AB - ABSTRACT: Includes notes on the geology of the Muzo emerald district, Colombia, and concludes "that the veins, and therefore the emeralds as well, are the result of mineralization in the lower part of the epithermal zone, or the upper part of the mesothermal zone; in other words, at relatively low temperatures.". DE - DESCRIPTORS: Colombia-; Emeralds-; gems-; mineralogy-; Muzo-district; South-America CC - CATEGORY CODES: 01-Mineralogy DT - DOCUMENT TYPE: Serial BL - BIB LEVEL: Analytic IL - ILLUSTRATION: Spring. RF - REFERENCE SOURCE: GeoRef, Copyright 2000, American Geological Institute. Reference includes data from Bibliography and Index of Geology Exclusive of North America, Geological Society of America, Boulder, CO, United States IS - ISSN: 0016-626X CO - CODEN: GEGEA2 AN - ACCESSION NUMBER: 1944-000346 UD - UPDATE CODE: 1944 Registro 3274 de 5614 - GeoRef Disc 1: 1785-1974 TI - TITLE: Regiones geologicas de Colombia. AU - AUTHORS: Lleras-Codazzi-Ricardo SO - SOURCE: Acad. Colomb., Rev.. 4; 15-16, Pages 268-304. 1941. PY - PUBLICATION YEAR: 1941 LA - LANGUAGE: Spanish AB - ABSTRACT: A large number of various notes bearing on the stratigraphy, minerals, and mineral resources of Colombia, as an appendix to the installment in the previous number of the journal. DE - DESCRIPTORS: Colombia-; economic-geology; historical-geology; South-America CC - CATEGORY CODES: 26-Economic-geology,-general DT - DOCUMENT TYPE: Serial BL - BIB LEVEL: Analytic RF - REFERENCE SOURCE: GeoRef, Copyright 2000, American Geological Institute. Reference includes data from Bibliography and Index of Geology Exclusive of North America, Geological Society of America, Boulder, CO, United States AN - ACCESSION NUMBER: 1944-001038 UD - UPDATE CODE: 1944 Registro 3275 de 5614 - GeoRef Disc 1: 1785-1974 TI - TITLE: Moluscos terciarios de agua dulce en el valle del Magdalena; introduccion y descripcion de las especies. AU - AUTHORS: Pilsbry-Henry-A; Olsson-Axel-A SO - SOURCE: Acad. Colomb., Rev.. 4; 15-16, Pages 410-417. 1941. PY - PUBLICATION YEAR: 1941 LA - LANGUAGE: Spanish AB - ABSTRACT: Translation of paper in the Acad. Nat. Sci. Philadelphia, Pr. v. 87, p. 7-21, 1936. DE - DESCRIPTORS: Cenozoic-; Colombia-; Invertebrata-; Magdalena-embayment; Mollusca-; paleontology-; South-America; Tertiary- CC - CATEGORY CODES: 10-Invertebrate-paleontology DT - DOCUMENT TYPE: Serial BL - BIB LEVEL: Analytic RF - REFERENCE SOURCE: GeoRef, Copyright 2000, American Geological Institute. Reference includes data from Bibliography and Index of Geology Exclusive of North America, Geological Society of America, Boulder, CO, United States AN - ACCESSION NUMBER: 1944-001362 UD - UPDATE CODE: 1944 Registro 3276 de 5614 - GeoRef Disc 1: 1785-1974 TI - TITLE: Estratigrafia terciaria del valle medio del Magdalena. AU - AUTHORS: Wheeler-O-C SO - SOURCE: Acad. Colomb., Rev.. 4; 15-16, Pages 418-424. 1941. PY - PUBLICATION YEAR: 1941 LA - LANGUAGE: Spanish AB - ABSTRACT: Translation of paper in the Acad. Nat. Sci. Philadelphia, Pr. v. 87, p. 21-39, 1936. DE - DESCRIPTORS: Cenozoic-; Colombia-; historical-geology; Magdalena-Valley; South-America; Tertiary- CC - CATEGORY CODES: 12-Stratigraphy DT - DOCUMENT TYPE: Serial BL - BIB LEVEL: Analytic RF - REFERENCE SOURCE: GeoRef, Copyright 2000, American Geological Institute. Reference includes data from Bibliography and Index of Geology Exclusive of North America, Geological Society of America, Boulder, CO, United States AN - ACCESSION NUMBER: 1944-001880 UD - UPDATE CODE: 1944 Registro 3277 de 5614 - GeoRef Disc 1: 1785-1974 TI - TITLE: Dem Gedaechtnis Walther Bergts. AU - AUTHORS: Scheumann-K-H SO - SOURCE: Miner. u. Petrog. Mitt.. 53; 3, Pages 155-157. 1941. PY - PUBLICATION YEAR: 1941 LA - LANGUAGE: German AB - ABSTRACT: Brief biographic account and list of writings of the Leipzig mineralogist, Walther Bergt (1864-1941), who contributed extensively to the petrology of the granulite complex of Saxony, Germany, especially the included gabbros and associated rocks, and to the study of petrologic relations in Colombia and Peru. DE - DESCRIPTORS: Bergt,-W.; bibliography-; biography- CC - CATEGORY CODES: 15-Miscellaneous DT - DOCUMENT TYPE: Serial BL - BIB LEVEL: Analytic RF - REFERENCE SOURCE: GeoRef, Copyright 2000, American Geological Institute. Reference includes data from Bibliography and Index of Geology Exclusive of North America, Geological Society of America, Boulder, CO, United States AN - ACCESSION NUMBER: 1948-002749 UD - UPDATE CODE: 1948 Registro 3278 de 5614 - GeoRef Disc 1: 1785-1974 BK - BOOK TITLE: Cretaceous from the middle Magdelana Valley, Colombia, South America. BA - BOOK AUTHORS: Witkind-Irving-Jerome CP - COUNTRY OF PUBLICATION: United-States PY - PUBLICATION YEAR: 1941 DG - DEGREE GRANTED: Master's DI - DEGREE GRANTING INSTITUTION: Columbia University, Teachers College. New York, NY, United States. 1941. LA - LANGUAGE: English DE - DESCRIPTORS: Colombia-; Cretaceous-; Magdelana-Valley; Mesozoic-; South-America; stratigraphy- CC - CATEGORY CODES: 12-Stratigraphy DT - DOCUMENT TYPE: Thesis-or-Dissertation BL - BIB LEVEL: Monograph RF - REFERENCE SOURCE: GeoRef, Copyright 2000, American Geological Institute. AN - ACCESSION NUMBER: 1991-070910 UD - UPDATE CODE: 1991 Registro 3279 de 5614 - GeoRef Disc 1: 1785-1974 BK - BOOK TITLE: Mineralization and ore deposition at the Tosca Mine, Santander, Colombia. BA - BOOK AUTHORS: Sandoval-Jose-C CP - COUNTRY OF PUBLICATION: United-States PY - PUBLICATION YEAR: 1941 DG - DEGREE GRANTED: Master's DI - DEGREE GRANTING INSTITUTION: Columbia University, Teachers College. New York, NY, United States. 1941. LA - LANGUAGE: English DE - DESCRIPTORS: Colombia-; economic-geology; metal-ores; mineral-deposits,-genesis; mineralization-; Santander-Colombia; South-America; Tosca-Mine CC - CATEGORY CODES: 27A-Economic-geology,-geology-of-ore-deposits DT - DOCUMENT TYPE: Thesis-or-Dissertation BL - BIB LEVEL: Monograph RF - REFERENCE SOURCE: GeoRef, Copyright 2000, American Geological Institute. AN - ACCESSION NUMBER: 1991-070983 UD - UPDATE CODE: 1991 Registro 3280 de 5614 - GeoRef Disc 1: 1785-1974 TI - TITLE: Informe del Jefe del Servicio Geologico. AU - AUTHORS: Alvarado-Benjamin SO - SOURCE: Pages 27-38. 1940. NT - NOTES: Colombia, Ministro de Minas y Petroleos, Informe, 1940 PY - PUBLICATION YEAR: 1940 LA - LANGUAGE: Spanish AB - ABSTRACT: A report on the work of the geological survey of Colombia by its director. DE - DESCRIPTORS: Colombia-; Geological-survey-report; report-; South-America; surveys- CC - CATEGORY CODES: 13-Areal-geology DT - DOCUMENT TYPE: Serial BL - BIB LEVEL: Analytic IL - ILLUSTRATION: Bogota. RF - REFERENCE SOURCE: GeoRef, Copyright 2000, American Geological Institute. Reference includes data from Bibliography and Index of Geology Exclusive of North America, Geological Society of America, Boulder, CO, United States AN - ACCESSION NUMBER: 1940-000040 UD - UPDATE CODE: 1940 Registro 3281 de 5614 - GeoRef Disc 1: 1785-1974 TI - TITLE: Geologia sobre el ordoviciano do Antioquia. AU - AUTHORS: Botero-Arango-Gerardo SO - SOURCE: Rev. Mineria, Medellin, Colombia (Asoc. Colombiana Mineros). 17; 99, Pages 8249-8256. 1940. PY - PUBLICATION YEAR: 1940 LA - LANGUAGE: Spanish AB - ABSTRACT: The Ordovician rocks of Antioquia, Colombia, consist of a batholith intruded into sediments containing graptolites. The batholith is chiefly quartz diorite. The sediments comprise schists, limestones, quartzite, and abundant gneisses along contacts and dikes. DE - DESCRIPTORS: Antioquia-Colombia; Colombia-; historical-geology; igneous-rocks; Ordovician-; Paleozoic-; petrology-; South-America CC - CATEGORY CODES: 05-Igneous-and-metamorphic-petrology DT - DOCUMENT TYPE: Serial BL - BIB LEVEL: Analytic IL - ILLUSTRATION: 3 pls. incl. geol. map. RF - REFERENCE SOURCE: GeoRef, Copyright 2000, American Geological Institute. Reference includes data from Bibliography and Index of Geology Exclusive of North America, Geological Society of America, Boulder, CO, United States AN - ACCESSION NUMBER: 1940-000346 UD - UPDATE CODE: 1940 Registro 3282 de 5614 - GeoRef Disc 1: 1785-1974 TI - TITLE: Informe sobre el reconocimiento del yacimiento de hierro de "Pericos," Guasca, Cundinamarca. AU - AUTHORS: Butler-John-W Jr. SO - SOURCE: Bol. Petrol., Bogota. 109-120; Pages 111-122. 1940. PY - PUBLICATION YEAR: 1940 LA - LANGUAGE: Spanish AB - ABSTRACT: A study of the Pericos iron deposit, Guasca, Cundinamarca, Colombia. DE - DESCRIPTORS: Colombia-; Cundinamarca-; economic-geology; Guasca-; iron-; metals-; Pericos-deposit; South-America CC - CATEGORY CODES: 27-Economic-geology-of-ore-deposits DT - DOCUMENT TYPE: Serial BL - BIB LEVEL: Analytic IL - ILLUSTRATION: 4 figs. RF - REFERENCE SOURCE: GeoRef, Copyright 2000, American Geological Institute. Reference includes data from Bibliography and Index of Geology Exclusive of North America, Geological Society of America, Boulder, CO, United States AN - ACCESSION NUMBER: 1940-000435 UD - UPDATE CODE: 1940 Registro 3283 de 5614 - GeoRef Disc 1: 1785-1974 TI - TITLE: Informe sobre la fuente de "Mal Paso" cerca de Mosquera (Cundinamarca). AU - AUTHORS: Butler-John-W Jr. SO - SOURCE: Bol. Petrol., Bogota. 109-120; Pages 123-137. 1940. PY - PUBLICATION YEAR: 1940 LA - LANGUAGE: Spanish AB - ABSTRACT: A study of Mal Paso spring in the Mosquera region, Cundinamarca, Colombia, as a possible source of water for the town of Mosquera. DE - DESCRIPTORS: Colombia-; Cundinamarca-; ground-water; Mal-Paso-spring; Mosquera-region; South-America; springs- CC - CATEGORY CODES: 21-Hydrogeology DT - DOCUMENT TYPE: Serial BL - BIB LEVEL: Analytic IL - ILLUSTRATION: 3 figs., 1 pl. RF - REFERENCE SOURCE: GeoRef, Copyright 2000, American Geological Institute. Reference includes data from Bibliography and Index of Geology Exclusive of North America, Geological Society of America, Boulder, CO, United States AN - ACCESSION NUMBER: 1940-000436 UD - UPDATE CODE: 1940 Registro 3284 de 5614 - GeoRef Disc 1: 1785-1974 TI - TITLE: Informe definitivo sobre los deslizamientos de Mongua (Boyaca). AU - AUTHORS: Butler-John-W Jr. SO - SOURCE: Bol. Petrol., Bogota. 109-120; Pages 139-171. 1940. PY - PUBLICATION YEAR: 1940 LA - LANGUAGE: Spanish AB - ABSTRACT: A study of the landslides threatening the town of Mongua, Boyaca, Colombia, and suggestions for their control. DE - DESCRIPTORS: Boyaca-; Boyaca-; Colombia-; landslides-; mass-movements; Mongua-; physical-geology; South-America CC - CATEGORY CODES: 22-Environmental-geology DT - DOCUMENT TYPE: Serial BL - BIB LEVEL: Analytic IL - ILLUSTRATION: 18 figs., 4 pls. RF - REFERENCE SOURCE: GeoRef, Copyright 2000, American Geological Institute. Reference includes data from Bibliography and Index of Geology Exclusive of North America, Geological Society of America, Boulder, CO, United States AN - ACCESSION NUMBER: 1940-000437 UD - UPDATE CODE: 1940 Registro 3285 de 5614 - GeoRef Disc 1: 1785-1974 TI - TITLE: Detrital dihexahedral crystals of quartz in a sediment in upper Magdalena valley of Colombia, South America. AU - AUTHORS: Butler-John-W Jr. SO - SOURCE: American Mineralogist. 25; 2, Pages 145-151. 1940. PB - PUBLISHER: Mineralogical Society of America. Washington, DC, United States. 1940. CP - COUNTRY OF PUBLICATION: United-States PY - PUBLICATION YEAR: 1940 LA - LANGUAGE: English DE - DESCRIPTORS: Colombia-; crystals-; framework-silicates; Magdalena-Valley; mineralogy-; minerals-described; quartz-; Quartz-crystals; silica-minerals; silicates-; South-America CC - CATEGORY CODES: 01-Mineralogy Directory: 2008 2008 -> Exam 1 of Computer Networks (ice 1230) 2008 7 2008 -> Program description 2008 -> Curriculum Vitae Museok Song 2008 -> Word Wall Chants Use these as fun ways to practice word wall words at home! 2008 -> Rockettothesky 2008 -> "Unique " "dfo " "Glide " "Country" "Other" "Nations" "X. Affected" "Locations" "Rivers" "Began" "Ended" "Days" "Dead" "Displaced" "Damage usd." 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