No. Registros Solicitud 1 5614 colombia
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DE - DESCRIPTORS: biography-; Buergl,-Hans; Colombia-; geologic-history; geologic-maps; historical-geology; maps-; paleogeography-; South-America CC - CATEGORY CODES: 13-Areal-geology DT - DOCUMENT TYPE: Serial BL - BIB LEVEL: Analytic IL - ILLUSTRATION: illus. incl. colored geol. map and portr., 1961; Engl. translation, Geologic history of Colombia, 81 p. processed, illus. incl. maps, 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 IS - ISSN: 0370-3908 CO - CODEN: RCCFAO AN - ACCESSION NUMBER: 1962-000805 UD - UPDATE CODE: 1962 Registro 2865 de 5614 - GeoRef Disc 1: 1785-1974 TI - TITLE: Etude stratigraphique, sedimentologique et micropaleontologique des pelites et des gres senoniens du Rio Prado (etat du Tolima, Colombie). AU - AUTHORS: Dupeuble-P-A; Verdier-J; Vernhet-S SO - SOURCE: Revue de Micropaleontologie. 3; Pages 205-213. 1962. NT - NOTES: an. 5 PB - PUBLISHER: Maison de la Geologie. Paris, France. 1962. CP - COUNTRY OF PUBLICATION: France PY - PUBLICATION YEAR: 1962 LA - LANGUAGE: French AB - ABSTRACT: Describes the field relations, lithology, and microfaunal facies of Senonian pelites and sandstones (the Guadalupe formation) in the Prado river region, Colombia. The sediments were deposited in a lagoonal-marine environment under changing depth conditions. Foraminifera establish their upper Campanian-Maestrichtian (Cretaceous) age. Foraminifera belonging to Siphogenerinoides occur abundantly in calcareous zones within the formation. Examination of the material confirms the validity of the genus and indicates that erection of the genus Siphogenerita for forms with triserial chamber arrangements is not warranted. DE - DESCRIPTORS: Colombia-; Cretaceous-; Foraminifera-; historical-geology; Invertebrata-; Mesozoic-; microfossils-; paleontology-; Prado-river-region; Protista-; Senonian-; Siphogenerinoides-; South-America; Tolima-; Upper-Cretaceous CC - CATEGORY CODES: 10-Invertebrate-paleontology DT - DOCUMENT TYPE: Serial BL - BIB LEVEL: Analytic IL - ILLUSTRATION: illus. 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: 0035-1598 CO - CODEN: RMCPAM AN - ACCESSION NUMBER: 1962-001414 UD - UPDATE CODE: 1962 Registro 2866 de 5614 - GeoRef Disc 1: 1785-1974 TI - TITLE: Palinologia de la region de "Laguna de los Bobos"; historia de su clima, vegetacion y agricultura durante los ultimos 5.000 anos. AU - AUTHORS: Hammen-Thomas-van-der SO - SOURCE: Revista de la Academia Colombiana de Ciencias Exactas, Fisicas y Naturales. 11; 44, Pages 359-361. 1962. PB - PUBLISHER: Academia Colombiana de Ciencias Exactas, Fisicas y Naturales. Bogota, Colombia. 1962. CP - COUNTRY OF PUBLICATION: Colombia PY - PUBLICATION YEAR: 1962 LA - LANGUAGE: Spanish LS - LANGUAGE OF SUMMARY: English AB - ABSTRACT: Pollen data indicate two significant changes in the postglacial vegetation of the Bobos lake area at an elevation of 3,800 meters in the Cordillera Oriental of Colombia, one of which is considered to correspond with the Subboreal-Subatlantic transition, the other with the Atlantic-Subboreal transition in Europe. DE - DESCRIPTORS: Bobos-lake-area; Cenozoic-; Colombia-; Holocene-; miospores-; paleontology-; palynology-; palynomorphs-; pollen-; postglacial-pollen; Quaternary-; South-America CC - CATEGORY CODES: 09-Paleobotany DT - DOCUMENT TYPE: Serial BL - BIB LEVEL: Analytic IL - ILLUSTRATION: illus. 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: 0370-3908 CO - CODEN: RCCFAO AN - ACCESSION NUMBER: 1962-002190 UD - UPDATE CODE: 1962 Registro 2867 de 5614 - GeoRef Disc 1: 1785-1974 TI - TITLE: Tectonic trends in Sierra de Perija and adjacent parts of Venezuela and Colombia. AU - AUTHORS: Miller-John-B SO - SOURCE: Bulletin of the American Association of Petroleum Geologists. 46; 9, Pages 1565-1595. 1962. PB - PUBLISHER: American Association of Petroleum Geologists. Tulsa, OK, United States. 1962. CP - COUNTRY OF PUBLICATION: United-States PY - PUBLICATION YEAR: 1962 LA - LANGUAGE: English AB - ABSTRACT: "Compressional folds and faults of the Sierra de Perijaare strongly aligned in a trend bearing about N. 35 degrees E. Combined in the range with this longitudinal pattern are several local or less prominent trends of faulting and disturbance. South-trending faults branch from the longitudinal faults in the northern part of the range, and emerge into the Maracaibo basin. Crossing through the southern and south-central part of the range is a system of transverse faults related to the Arena Blanca trend defined in the Cesar valley. The east-trending transverse Oca fault system crosses and terminates the north end of the range.". DE - DESCRIPTORS: Colombia-; faults-; folds-; Perija-sierra-region; South-America; structural-geology; tectonics-; Venezuela-; Venezuela-Colombia CC - CATEGORY CODES: 16-Structural-geology DT - DOCUMENT TYPE: Serial BL - BIB LEVEL: Analytic IL - ILLUSTRATION: illus. 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 IS - ISSN: 0883-9247 AN - ACCESSION NUMBER: 1962-003594 UD - UPDATE CODE: 1962 Registro 2868 de 5614 - GeoRef Disc 1: 1785-1974 TI - TITLE: Estudio minerogenetico del filon uranifero San Celestino (California, Santander). AU - AUTHORS: Pagnacco-Piero-F SO - SOURCE: Geol. Colombiana. 1; Pages 45-54. 1962. PY - PUBLICATION YEAR: 1962 LA - LANGUAGE: Spanish LS - LANGUAGE OF SUMMARY: French; English; Italian AB - ABSTRACT: The San Celestino ore body northeast of California in Santander, Colombia, is a brecciated veinlike deposit containing abundant sphalerite, less abundant tetrahedrite, two generations of pyrite, and small quantities of galena, enargite, and covellite, as well as disseminated uranium in the quartz gangue. Paragenetic relationships indicate that mineralization was subvolcanic and took place in several stages. The hydrothermal mineralizing solutions probably represent a late stage of the magmatic activity responsible for formation of the acid porphyry of the area. DE - DESCRIPTORS: actinides-; California-area; Colombia-; economic-geology; metals-; mineral-deposits,-genesis; San-Celestino-ore-vein; South-America; uranium- CC - CATEGORY CODES: 27-Economic-geology-of-ore-deposits DT - DOCUMENT TYPE: Serial BL - BIB LEVEL: Analytic IL - ILLUSTRATION: illus. 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: 1962-004045 UD - UPDATE CODE: 1962 Registro 2869 de 5614 - GeoRef Disc 1: 1785-1974 TI - TITLE: Cupriferous mineralizations in the Serrania de Perija between Codazzi and Molino (Colombia). AU - AUTHORS: Pagnacco-Piero-F SO - SOURCE: Geol. Colombiana. 2; Pages 5-13. 1962. PY - PUBLICATION YEAR: 1962 LA - LANGUAGE: English LS - LANGUAGE OF SUMMARY: Spanish; Italian; French AB - ABSTRACT: Paragenetic relationships indicate that the principal zones of copper mineralization of the Perija range, Colombia, are not genetically related to the volcanic rocks associated with red beds of the La Quinta formation (Permian-Jurassic), within which they occur, but were formed as a result of later mineralization probably related to Tertiary magmatic activity of a hidden batholith. Two other types of copper mineralization, of secondary importance, are also present in the range--impregnations in sandstone and fissure veins. DE - DESCRIPTORS: Colombia-; copper-; economic-geology; metals-; mineral-deposits,-genesis; Perija-range; South-America CC - CATEGORY CODES: 27-Economic-geology-of-ore-deposits 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: 1962-004046 UD - UPDATE CODE: 1962 Registro 2870 de 5614 - GeoRef Disc 1: 1785-1974 TI - TITLE: K-Ar and Rb-Sr ages of biotites from Colombia, South America. AU - AUTHORS: Pinson-W-H Jr.; Fairbairn-H-W; Mencher-E SO - SOURCE: Geological Society of America Bulletin. 73; 7, Pages 907-910. 1962. PB - PUBLISHER: Geological Society of America (GSA). Boulder, CO, United States. 1962. CP - COUNTRY OF PUBLICATION: United-States PY - PUBLICATION YEAR: 1962 LA - LANGUAGE: English AB - ABSTRACT: "The western part of the Guayana shield is at least as old as 1200 m.y. where it is exposed in the Guaviare river valley in Colombia. Subsequent orogenic events west of the shield area include the development of the Macarena mountains, which reflect nearby basement age values ranging from 445 to 495 m.y., and the development of a north-south arch in northern Colombia, uplifted and folded in Cretaceous and Tertiary times, agreeing with an age value of 110 m.y.". DE - DESCRIPTORS: Age-determinations; Age-measurements; ages-; biotite-; Colombia-; geologic-time; mica-group; mineralogy-; sheet-silicates; silicates-; South-America CC - CATEGORY CODES: 01-Mineralogy 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 IS - ISSN: 0016-7606 CO - CODEN: BUGMAF AN - ACCESSION NUMBER: 1962-004195 UD - UPDATE CODE: 1962 Registro 2871 de 5614 - GeoRef Disc 1: 1785-1974 TI - TITLE: A proposito de E. (Amerhippus) curvidens en el pleistoceno de Colombia. AU - AUTHORS: Porta-Jaime-de SO - SOURCE: Geol. Colombiana. 2; Pages 35-38. 1962. PY - PUBLICATION YEAR: 1962 LA - LANGUAGE: Spanish LS - LANGUAGE OF SUMMARY: English AB - ABSTRACT: Material from Pleistocene localities of Colombia, which has been assigned to Equus (Amerhippus) curvidens, belongs instead to E. (E.) caballus. DE - DESCRIPTORS: Cenozoic-; Chordata-; Colombia-; Equidae-; Equus-; Eutheria-; Hippomorpha-; Mammalia-; paleontology-; Perissodactyla-; Pleistocene-; Pleistocene-Equus; Quaternary-; South-America; Tetrapoda-; Theria-; Vertebrata- CC - CATEGORY CODES: 11-Vertebrate-paleontology DT - DOCUMENT TYPE: Serial BL - BIB LEVEL: Analytic IL - ILLUSTRATION: illus. 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: 1962-004259 UD - UPDATE CODE: 1962 Registro 2872 de 5614 - GeoRef Disc 1: 1785-1974 TI - TITLE: Las dos granitizaciones de la peninsula de la Guajira (norte de Colombia). AU - AUTHORS: Radelli-Luigi SO - SOURCE: 1; Pages 5-19. 1962. NT - NOTES: Geol. Colombiana PY - PUBLICATION YEAR: 1962 LA - LANGUAGE: Spanish LS - LANGUAGE OF SUMMARY: French; English; Italian AB - ABSTRACT: The crystalline basement of the Guajira peninsula, northern Colombia, comprises rocks formed in two sucessive periods of granite formation--post-tetonic migmatites and ectinites of a single granitized complex, probably Precambrian in age, and granodiorites accompanied by rhodacitic lavas, probably emplaced during a Paleozoic orogenic cycle (Hercynian). Tectonic relationships of the sedimentary cover reflect the effects of vertical movements of the basement. Data on the rock types represented in the basement and the formations represented in the sedimentary cover (Triassic to Miocene) are summarized. DE - DESCRIPTORS: Cenozoic-; Colombia-; geologic-maps; granites-; Guajira-Peninsula; igneous-rocks; maps-; Mesozoic-; metamorphic-rocks; petrology-; plutonic-rocks; South-America; Tertiary- CC - CATEGORY CODES: 05-Igneous-and-metamorphic-petrology DT - DOCUMENT TYPE: Map BL - BIB LEVEL: Analytic MS - MAP SCALE: 1:250,000 IL - ILLUSTRATION: 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: 1962-004341 UD - UPDATE CODE: 1962 Registro 2873 de 5614 - GeoRef Disc 1: 1785-1974 TI - TITLE: Acerca de la geologia de la Serrania de Perija entre Codazzi y Villanueva (Magdalena-Guajira, Colombia). AU - AUTHORS: Radelli-Luigi SO - SOURCE: Geol. Colombiana. 1; Pages 23-41. 1962. PY - PUBLICATION YEAR: 1962 LA - LANGUAGE: Spanish LS - LANGUAGE OF SUMMARY: French; English; Italian AB - ABSTRACT: Paleozoic geosynclinal sediments, continental Triassic-Jurassic deposits, Cretaceous marine sediments, and volcanic rocks associated with different cycles of volcanic activity are represented in the Perija range between Codazzi and Villanueva, Colombia. DE - DESCRIPTORS: Codazzi-Villanueva-area; Colombia-; Cretaceous-; historical-geology; igneous-rocks; Jurassic-; Mesozoic-; Paleozoic-; Perija-range; South-America; Triassic- CC - CATEGORY CODES: 05-Igneous-and-metamorphic-petrology; 12-Stratigraphy DT - DOCUMENT TYPE: Serial BL - BIB LEVEL: Analytic IL - ILLUSTRATION: illus. incl. geol. sketch maps. 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: 1962-004342 UD - UPDATE CODE: 1962 Registro 2874 de 5614 - GeoRef Disc 1: 1785-1974 TI - TITLE: Un interessante caso di metablastesi; la serie metamorfica della Quebrada La Cristalina (departamento del Meta). AU - AUTHORS: Radelli-Luigi SO - SOURCE: Geol. Colombiana. 2; Pages 15-21. 1962. PY - PUBLICATION YEAR: 1962 LA - LANGUAGE: Spanish LS - LANGUAGE OF SUMMARY: Spanish; French; English AB - ABSTRACT: The sequence of metamorphic rocks exposed in La Cristalina valley, in the Cordillera Oriental of Colombia, comprises metamorphosed limestones, amphibolites, and schists and is charatcerized by selective development of porphyroblasts reflecting the effects of metamorphic zoning. DE - DESCRIPTORS: Colombia-; La-Cristalina-valley; metamorphic-rocks; metamorphism-; petrology-; South-America; zoning- CC - CATEGORY CODES: 05-Igneous-and-metamorphic-petrology DT - DOCUMENT TYPE: Serial BL - BIB LEVEL: Analytic IL - ILLUSTRATION: illus. 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: 1962-004343 UD - UPDATE CODE: 1962 Registro 2875 de 5614 - GeoRef Disc 1: 1785-1974 TI - TITLE: Introduccion al estudio de la geologia y de la petrografia del macizo de Santa Marta (Magdalena, Colombia). AU - AUTHORS: Radelli-Luigi SO - SOURCE: 2; Pages 41-97. 1962. NT - NOTES: Geol. Colombiana PY - PUBLICATION YEAR: 1962 LA - LANGUAGE: Spanish LS - LANGUAGE OF SUMMARY: English; French; Italian AB - ABSTRACT: The Santa Marta massif in northern Colombia is composed of metamorphic and magmatic rocks, bordered on the southwest by red beds of the La Quinta formation (Triassic-Jurassic) and Cretaceous limestones. Migmatites and ectinites probably represent a continuous series, whereas leptynites are considered the metamorphosed product of an ancient granite emplaced within the migmatites prior to their metamorphism. The magmatic rocks include a variety of granites, interpreted as consanguineous rocks belonging to a single differentiated batholith, and a complex of microgranites, rhyolites, and volcanic ash. A late Hercynian, probably post-tectonic, age is postulated for the batholith. Petrographic details of the various rock types are reported, and the facies and relationships of the rock complexes are discussed. DE - DESCRIPTORS: Colombia-; geologic-maps; igneous-rocks; intrusions-; Magdalena-Colombia; maps-; metamorphic-rocks; petrology-; Santa-Marta-massif; South-America CC - CATEGORY CODES: 05-Igneous-and-metamorphic-petrology DT - DOCUMENT TYPE: Map BL - BIB LEVEL: Analytic MS - MAP SCALE: 1:400,000 IL - ILLUSTRATION: illus. 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: 1962-004344 UD - UPDATE CODE: 1962 Registro 2876 de 5614 - GeoRef Disc 1: 1785-1974 BK - BOOK TITLE: A new species of elasmosaur from the Aptian of Colombia and a review of the Cretaceous plesiosaurs. BA - BOOK AUTHORS: Welles-S-P SO - SOURCE: University of California Publications in Geological Sciences. 44; 1, 1962. PB - PUBLISHER: University of California. Berkeley, CA, United States. Pages: 89. 1962. CP - COUNTRY OF PUBLICATION: United-States PY - PUBLICATION YEAR: 1962 LA - LANGUAGE: English AB - ABSTRACT: Describes Alzadasaurus colombiensis n.sp. from lower Aptian shales near Leiva, Colombia, which serves as a basis for a taxonomic review and revision of Cretaceous plesiosaurs from localities in South America and elsewhere throughout the world. DE - DESCRIPTORS: Alzadasaurus-; Aptian-; Aptian-Alzadasaurus; Chordata-; Colombia-; Cretaceous-; Lower-Cretaceous; Mesozoic-; paleontology-; Plesiosaurs-; Reptilia-; revision-; South-America; Tetrapoda-; Vertebrata- CC - CATEGORY CODES: 11-Vertebrate-paleontology DT - DOCUMENT TYPE: Serial BL - BIB LEVEL: Monograph IL - ILLUSTRATION: illus. 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: 0068-645X CO - CODEN: UCGSAE AN - ACCESSION NUMBER: 1962-005919 UD - UPDATE CODE: 1962 Registro 2877 de 5614 - GeoRef Disc 1: 1785-1974 TI - TITLE: Petroleum developments in South America and Caribbean area. AU - AUTHORS: Sass-Louis-C; Neff-C-H SO - SOURCE: Bulletin of the American Association of Petroleum Geologists. 46; 7, Pages 1077-1140. 1962. PB - PUBLISHER: American Association of Petroleum Geologists. Tulsa, OK, United States. 1962. CP - COUNTRY OF PUBLICATION: United-States PY - PUBLICATION YEAR: 1962 LA - LANGUAGE: English AB - ABSTRACT: This review covers 25 reporting countries in South America and the Caribbean area. During the review year, geological and geophysical field effort was expended in search of new petroleum reserves in 16 of the 25 countries but this effort totaled only 1298 party-months - down 25% from the preceding year. Wildcat drilling in 1961 increased 7.2% over the 1960 figure. During the year 374 exploratory wells were drilled in 14 of the reporting countries and 87 of these wildcats were completed as oil or gas producers for a success ratio of 30%. Finally, oil production for the year from the subject area totaled 1,318,610,000 bbls., up 4.2% over the preceding year. Some 80970 of this total production came from Venezuela; 8 other countries - all of which have been on a producing basis for many years - provided the remainder. No new countries came on production during 1961. Substantial net acreage relinquishments of concession areas during the year by private companies are reported from Colombia, Bolivia, Venezuela, and Peru. DE - DESCRIPTORS: Caribbean-region; Central-America; economic-geology; exploration-1961; petroleum-; West-Indies CC - CATEGORY CODES: 29-Economic-geology-of-energy-sources DT - DOCUMENT TYPE: Serial BL - BIB LEVEL: Analytic IL - ILLUSTRATION: illus., tables. RF - REFERENCE SOURCE: GeoRef, Copyright 2000, American Geological Institute. Reference includes data from Bibliography and Index of North American Geology, U. S. Geological Survey, Reston, VA, United States IS - ISSN: 0883-9247 AN - ACCESSION NUMBER: 1962-009316 UD - UPDATE CODE: 1962 Registro 2878 de 5614 - GeoRef Disc 1: 1785-1974 TI - TITLE: Three-phase inclusions in emerald, aquamarine and topaz. AU - AUTHORS: Eppler-W-F SO - SOURCE: Journal of Gemmology. 8; 7, Pages 245-250. 1962. PB - PUBLISHER: Gemmological Association and Gem Testing Laboratory of Great Britian. London, United Kingdom. 1962. CP - COUNTRY OF PUBLICATION: United-Kingdom PY - PUBLICATION YEAR: 1962 LA - LANGUAGE: English AB - ABSTRACT: The presence of three-phase inclusions, generally considered diagnostic of genuine emeralds (particularly those from Colombia) is reported in aquamarine and topaz from localities in Brazil. The solid component of the inclusions is generally halite or, les frequently, sylvite. DE - DESCRIPTORS: Brazil-; emerald-aquamarine-topaz; gems-; inclusions-; mineralogy-; South-America; three-phase; Three-phase-inclusions CC - CATEGORY CODES: 01-Mineralogy DT - DOCUMENT TYPE: Serial BL - BIB LEVEL: Analytic IL - ILLUSTRATION: illus. 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: 0022-1252 CO - CODEN: JGEAAR AN - ACCESSION NUMBER: 1963-001347 UD - UPDATE CODE: 1963 Registro 2879 de 5614 - GeoRef Disc 1: 1785-1974 TI - TITLE: Petroquimica de las rocas igneas colombianas. AU - AUTHORS: Schaufelberger-Paul-(Pablo) SO - SOURCE: Cenicafe (Centro Nac. Inves. Cafe). 13; 3, Pages 139-162. 1962. PY - PUBLICATION YEAR: 1962 LA - LANGUAGE: Spanish AB - ABSTRACT: Following an introduction that briefly compares the methods of Niggli and Wolff for classifying igneous rocks and shows the distribution of types into Atlantic, Pacific, Mediterranean, and ultrabasic categories, the Niggli values of 117 analyses of rocks from Colombian localities are presented. Of the total, approximately 40 percent are granitic, 20 percent dioritic, 6 percent syenitic, 11 percent gabbroic, 1 percent foyaitic, 3 percent ultrabasic, and 20 percent migmatitic. No analyses are given. 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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