DE - DESCRIPTORS: Artiodactyla-; Bovidae-; Cenozoic-; Chordata-; Colombia-; Colombibos-atactodontus; Eutheria-; Mammalia-; new-taxa; paleontology-; Pleistocene-; Quaternary-; regional-; Ruminantia-; Soata-; 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
IS - ISSN: 0120-0283
CO - CODEN: UISBAV
AN - ACCESSION NUMBER: 1967-002610
UD - UPDATE CODE: 1967
Registro 2933 de 5614 - GeoRef Disc 1: 1785-1974
TI - TITLE: De la flora fosil de la Sabana.
AU - AUTHORS: Huertas-G-Gustavo
SO - SOURCE: Boletin de Geologia (Bucaramanga). 5; Pages 53-57. 1960.
PB - PUBLISHER: Universidad Industrial de Santander. Bucaramanga, Colombia. 1960.
CP - COUNTRY OF PUBLICATION: Colombia
PY - PUBLICATION YEAR: 1960
LA - LANGUAGE: Spanish
LS - LANGUAGE OF SUMMARY: English; French
AB - ABSTRACT: In fossil samples collected from the northern coal seams of Zipaquira, Colombia, two significant genera appear to be new for the Colombian fossil flora, and three new species are described: Geonomites zipaquirensis Huert., Ficus andrewsi Huert., and Coussapoa camargoi Huert. The horizon from which these have been collected is of Maestrichtian age. This contradicts Berry's earlier work, which considered the beds to be of Tertiary age.
DE - DESCRIPTORS: Colombia-; Cretaceous-; Maestrichtian-; Mesozoic-; new-taxa; paleobotany-; paleontology-; Senonian-; South-America; Upper-Cretaceous; Zipaquira-
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: 0120-0283
CO - CODEN: UISBAV
AN - ACCESSION NUMBER: 1967-002611
UD - UPDATE CODE: 1967
Registro 2934 de 5614 - GeoRef Disc 1: 1785-1974
TI - TITLE: La situacion del manganeso en Colombia.
AU - AUTHORS: Espriella-Ricardo-de-la
SO - SOURCE: Boletin de Geologia (Bucaramanga). 5; Pages 58-67. 1960.
PB - PUBLISHER: Universidad Industrial de Santander. Bucaramanga, Colombia. 1960.
CP - COUNTRY OF PUBLICATION: Colombia
PY - PUBLICATION YEAR: 1960
LA - LANGUAGE: Spanish
LS - LANGUAGE OF SUMMARY: English; French
AB - ABSTRACT: A list of 42 known occurrences of manganese in Colombia is given. These occurrences are in the states of Antioqua, Boyaca, Caldas, Cauca, Cundinamarca, Huila, Llanos Orientales, Magdalena, Narino, Norte de Santander, Tolima, and Valle del Cauca. Current reserves do not meet the needs of the country, and future prospects are unknown. A bibliography of manganese in Colombia indexed according to geographic location is included.
DE - DESCRIPTORS: Colombia-; economic-geology; manganese-; metals-; Occurrences-; reserves-; South-America
CC - CATEGORY CODES: 27-Economic-geology-of-ore-deposits
DT - DOCUMENT TYPE: Serial
BL - BIB LEVEL: Analytic
IL - ILLUSTRATION: 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: 0120-0283
CO - CODEN: UISBAV
AN - ACCESSION NUMBER: 1967-002612
UD - UPDATE CODE: 1967
Registro 2935 de 5614 - GeoRef Disc 1: 1785-1974
TI - TITLE: Holocene and late glacial climate and vegetation of Paramo de Palacio (Eastern Cordillera, Colombia, South America).
AU - AUTHORS: Hammen-T-van-der; Gonzalez-E
SO - SOURCE: Geologie en Mijnbouw. 39; 12, Pages 737-745. 1960.
PB - PUBLISHER: De Bussy Ellerman Harms. Amsterdam, Netherlands. 1960.
CP - COUNTRY OF PUBLICATION: Netherlands
PY - PUBLICATION YEAR: 1960
LA - LANGUAGE: English
AB - ABSTRACT: Pollen analyses and carbon-14 age determinations from samples of two lake sections and two peat-bog sections from an area between 3200 and 3900 m above sea level in the Cordillera Oriental of Colombia show that late Pleistocene and the Holocene climatic phases were synchronous with European phases. This proves that the agents which caused the climatic changes acted on a worldwide scale, and may have to be sought in changes in solar radiation. During optimum conditions of the Holocene, the tree line was 300 to 400 m higher, and the maximum average annual temperature 2-3 degrees C higher than at present. These figures are in agreement with similar climatic data from the Alps.
DE - DESCRIPTORS: absolute-age; C-14; carbon-; Cenozoic-; Colombia-; dates-; isotopes-; organic-residues; Paramo-de-Palacio; paleobotany-; paleoclimatology-; palynology-; peat-; Quaternary-; radioactive-isotopes; sediments-; South-America
CC - CATEGORY CODES: 24-Quaternary-geology
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: 0016-7746
CO - CODEN: GEMIAA
AN - ACCESSION NUMBER: 1967-009740
UD - UPDATE CODE: 1967
Registro 2936 de 5614 - GeoRef Disc 1: 1785-1974
BK - BOOK TITLE: Stratigraphy and structure of the Goajira Peninsula, northwestern Venezuela and northeastern Colombia.
BA - BOOK AUTHORS: Rollins-John-Flett
CP - COUNTRY OF PUBLICATION: United-States
PY - PUBLICATION YEAR: 1960
DG - DEGREE GRANTED: Doctoral
DI - DEGREE GRANTING INSTITUTION: University of Nebraska, Lincoln. Lincoln, NE, United States. Pages: 366. 1960.
LA - LANGUAGE: English
DE - DESCRIPTORS: Colombia-; Goajira-Peninsula; lithostratigraphy-; northeastern-Colombia; northwestern-Venezuela; paleogeography-; South-America; stratigraphy-; Venezuela-
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: 1989-080986
UD - UPDATE CODE: 1989
Registro 2937 de 5614 - GeoRef Disc 1: 1785-1974
BK - BOOK TITLE: Geology and preliminary groundwater investigations of the Codazzi area, northeastern Colombia, South America.
BA - BOOK AUTHORS: Casas-Jamie-Lopez
CP - COUNTRY OF PUBLICATION: United-States
PY - PUBLICATION YEAR: 1960
DG - DEGREE GRANTED: Master's
DI - DEGREE GRANTING INSTITUTION: University of Wisconsin-Madison. Madison, WI, United States. 1960.
LA - LANGUAGE: English
DE - DESCRIPTORS: areal-geology; Codazzi-; Colombia-; ground-water; hydrogeology-; northeastern-Colombia; South-America; surveys-
CC - CATEGORY CODES: 13-Areal-geology; 21-Hydrogeology
DT - DOCUMENT TYPE: Thesis-or-Dissertation
BL - BIB LEVEL: Monograph
RF - REFERENCE SOURCE: GeoRef, Copyright 2000, American Geological Institute.
AN - ACCESSION NUMBER: 1991-072320
UD - UPDATE CODE: 1991
Registro 2938 de 5614 - GeoRef Disc 1: 1785-1974
TI - TITLE: Geologia de la peninsula de la Guajira, Colombia.
AU - AUTHORS: Burgl-Hans
SO - SOURCE: Pages 43. 1959.
NT - NOTES: Caribbean Geol. Conf., 2d, Program
PY - PUBLICATION YEAR: 1959
LA - LANGUAGE: Spanish
AB - ABSTRACT: Masses of ancient rock (pre-Devonian?) in the interior, a thick Mesozoic sequence in the southern part (with Rhaetic-Liassic continental beds at the base and extensively developed Kimeridgian to Campanian marine deposits), and middle Oligocene to upper Miocene sediments are the principal elements of the Guajira peninsula northeastern Colombia.
DE - DESCRIPTORS: Colombia-; geology-; Guajira-Peninsula; South-America
CC - CATEGORY CODES: 15-Miscellaneous
DT - DOCUMENT TYPE: Abstract; 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: 1959-000757
UD - UPDATE CODE: 1959
Registro 2939 de 5614 - GeoRef Disc 1: 1785-1974
TI - TITLE: Petroleum developments in South America and Caribbean area in 1958.
AU - AUTHORS: Clark-E-W
SO - SOURCE: Bulletin of the American Association of Petroleum Geologists. 43; 7, Pages 1518-1580. 1959.
PB - PUBLISHER: American Association of Petroleum Geologists. Tulsa, OK, United States. 1959.
CP - COUNTRY OF PUBLICATION: United-States
PY - PUBLICATION YEAR: 1959
LA - LANGUAGE: English
AB - ABSTRACT: Oil production in South America and the Caribbean area during 1958 was 1,120,800,000 bbls. or 3,071,100 b./d. compared with 1,169,200,000 bbls. or 3,202,700 b./d. during 1957. The reduction was due mainly to the decrease of 174,000 b./d. in Venezuela. In Brazil production was nearly doubled, from 27,700 b./d. to 51,800 b./d., while small gains were also noted in Argentina, Chile, Colombia, and Trinidad. The total number of wells drilled in the area in 1958 amounted to 2,418 compared with 3,074 in 1957. This decrease was again due mainly to the reduction in drilling in Venezuela from 1,828 wells to 1,111. Prominent among new developments in South America and the Caribbean were: 1) reopening of Argentina to foreign investment in the petroleum industry, and 2) increase in income tax in Venezuela, resulting in substantial increase in the Government's share of oil-company profits. The president of Venezuela has reportedly stated that there would be no more oil concessions granted in Venezuela, and exploration activity in Venezuela was being reduced at the end of the year. In Argentina, contracts calling for very substantial capital expenditures during the next few years have been signed with a number of foreign oil and financial organizations. In this way it is hoped to conserve foreign currency now being used for the importation of petroleum and its products. Several Central American countries saw continued leasing activity as a result of new petroleum laws, and considerable surface exploration and drilling were carried out.
DE - DESCRIPTORS: developments-; petroleum-; South-America
CC - CATEGORY CODES: 29-Economic-geology-of-energy-sources
DT - DOCUMENT TYPE: Serial
BL - BIB LEVEL: Analytic
IL - ILLUSTRATION: sk. 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
IS - ISSN: 0883-9247
AN - ACCESSION NUMBER: 1959-001009
UD - UPDATE CODE: 1959
Registro 2940 de 5614 - GeoRef Disc 1: 1785-1974
TI - TITLE: Geology of the La Venta badlands, Colombia, South America.
AU - AUTHORS: Fields-Robert-W
SO - SOURCE: University of California Publications in Geological Sciences. 32; 6, Pages 405-434. 1959.
PB - PUBLISHER: University of California. Berkeley, CA, United States. 1959.
CP - COUNTRY OF PUBLICATION: United-States
PY - PUBLICATION YEAR: 1959
LA - LANGUAGE: English
AB - ABSTRACT: "Sedimentary rocks in the La Venta badlands range in age from Jura-Triassic to Quaternary. The La Venta beds are apparently part of Hettner's Honda formation, here called Honda group, and are dated as late Miocene on the basis of fossil mammals. The deposits vary in lithology, and alternating periods of flooding and drying caused formation of red beds and 'torpedo-shaped' concretions. The sediments were derived from nearby sources to the south and west. They have been slightly faulted and gently folded by contemporaneous and postdepositional tectonic activity.".
DE - DESCRIPTORS: Cenozoic-; Colombia-; faults-; folds-; geologic-history; geologic-maps; geology-; La-Venta-badlands; maps-; Quaternary-; South-America; Tertiary-
CC - CATEGORY CODES: 15-Miscellaneous
DT - DOCUMENT TYPE: Serial; Map
BL - BIB LEVEL: Analytic
MS - MAP SCALE: 1:20,000
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
IS - ISSN: 0068-645X
CO - CODEN: UCGSAE
AN - ACCESSION NUMBER: 1959-001602
UD - UPDATE CODE: 1959
Registro 2941 de 5614 - GeoRef Disc 1: 1785-1974
TI - TITLE: Aspectos geograficos y geologicos y recursos de las islas de San Andres y Providencia.
AU - AUTHORS: Hubach-Enrique
SO - SOURCE: Pages 44-45. 1959.
NT - NOTES: Caribbean Geol. Conf., 2d, Program
PY - PUBLICATION YEAR: 1959
LA - LANGUAGE: Spanish
AB - ABSTRACT: Summarizes data on the geology of San Andres and Providencia islands (Colombia). Miocene limestone forms the core of the former; the latter represents an extinct andesitic volcano.
DE - DESCRIPTORS: Cenozoic-; Colombia-; geography-geology; Providencia-island; San-Andres--Providencia-islands; San-Andres-providencia-islands; South-America; Tertiary-; Volcanos-extinct
CC - CATEGORY CODES: 12-Stratigraphy
DT - DOCUMENT TYPE: Abstract; 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: 1959-002427
UD - UPDATE CODE: 1959
Registro 2942 de 5614 - GeoRef Disc 1: 1785-1974
TI - TITLE: Three ages of rock crystallization in Colombia, South America.
AU - AUTHORS: Pinson-W-H Jr.; Fairbairn-H-W; Hurley-Patrick; Mencher-E
SO - SOURCE: Geological Society of America Bulletin. 70; 12, Part 2, Pages 1656. 1959.
PB - PUBLISHER: Geological Society of America (GSA). Boulder, CO, United States. 1959.
CP - COUNTRY OF PUBLICATION: United-States
PY - PUBLICATION YEAR: 1959
LA - LANGUAGE: English
DE - DESCRIPTORS: age-; age-determinations; basement-; Colombia-; geologic-time; South-America
CC - CATEGORY CODES: 03-Geochronology
DT - DOCUMENT TYPE: Abstract; 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: 1959-004291
UD - UPDATE CODE: 1959
Registro 2943 de 5614 - GeoRef Disc 1: 1785-1974
TI - TITLE: A review of the Sirenia and Desmostylia.
AU - AUTHORS: Reinhart-Roy-H
SO - SOURCE: University of California Publications in Geological Sciences. 36; 1, Pages 1-145. 1959.
PB - PUBLISHER: University of California. Berkeley, CA, United States. 1959.
CP - COUNTRY OF PUBLICATION: United-States
PY - PUBLICATION YEAR: 1959
LA - LANGUAGE: English
AB - ABSTRACT: This study consists of 2 parts. Part I describes recent discoveries in the order Sirenia, in Colombia, Puerto Rico, Mexico, California, and Egypt. Part II pertains to a reevaluation of all desmostylid fossils from the Pacific coast of North America and Japan, with a description of many new specimens from California. Part I: All sirenian fossils reported from the E and the W coasts of North America, from the Caribbean and the W coast of Mexico are reviewed, and the more important European and Egyptian specimens are compared with the western hemisphere forms. From this study it is indicated that the family Dugongidae has had a world-wide distribution and has shown a moderate diversity of form as compared to the family Trichechidae which to date has been found only in the Caribbean and its environs. As yet no definite evidence has been found to substantiate nor completely repudiate the old concept of the origin of Trichechus in the Caribbean and Dugong in the Mediterranean. Present knowledge indicates that the trichechids have been a separate phyletic line from the dugongids since Eocene time. Separation of the family Dugongidae into 2 phyletic lines starting with the middle Eocene Eotheroides is suggested. This division is based on the nasal-frontal relationship. One line is considered to have given rise to Halitherium in which the nasals meet in the mid-line whereas the other line gave rise to Caribosiren with the nasals separated by the frontals. A further modification in classification is proposed in that the recently extinct, edentulous Hydrodamalis is believed to have been on a direct line of descent from the very large Miocene Halianassa from California. Part II: Because of the paucity of desmostylid specimens, particularly postcranial elements, the designation of relationships of the desmostylids with other mammalian orders has been obscured. Knowledge gained from newly discovered desmostylid postcranial elements suggests that the present classification of the Desmostyliformes in the order Sirenia is inconsistent with the evidence. It is proposed that the genus Desmostylus and other desmostylids be placed in a taxonomic category or ordinal rank, the Desmostylia. The order Proboscidea, Sirenia, and the newly proposed order Desmostylia are considered to have descended from a common paenungulate origin, to have inherited many homologous characters, and to have retained or developed similar habits and environmental preferences.
DE - DESCRIPTORS: Cenozoic-; Chordata-; classification-; Desmostylia-; Eutheria-; Mammalia-; new-order; nomenclature-; North-America; paleontology-; review-; Sirena-and-Desmostylia; Sirenia-; Sirenia-and-Desmostylia; Sirenians-and-desmostylians; Tertiary-; 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 North American Geology, U. S. Geological Survey, Reston, VA, United States
IS - ISSN: 0068-645X
CO - CODEN: UCGSAE
AN - ACCESSION NUMBER: 1959-025463
UD - UPDATE CODE: 1959
Registro 2944 de 5614 - GeoRef Disc 1: 1785-1974
BK - BOOK TITLE: Saline basins of North and South America; a preliminary literature summary, Item 2.
BA - BOOK AUTHORS: Kerr-Paul-F; Klink-K-E
PY - PUBLICATION YEAR: 1959
LA - LANGUAGE: English
AB - ABSTRACT: Includes brief descriptions of the Zipaquira salt basin in Colombia, the Rio Huallago basin in Peru, the Manaus and Aracaju basins in Brazil, and the Neuquen basin in Argentina, together with lists of references.
DE - DESCRIPTORS: chemically-precipitated-rocks; evaporites-; saline-basins; salt-; sedimentary-rocks; South-America
CC - CATEGORY CODES: 06-Sedimentary-petrology
BL - BIB LEVEL: Monograph
IL - ILLUSTRATION: illus. incl. sketch maps, Columbia Univ., Dept. Geol., New York.
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: 1960-002350
UD - UPDATE CODE: 1960
Registro 2945 de 5614 - GeoRef Disc 1: 1785-1974
TI - TITLE: Contribution to the geology of the central and western Cordillera of Colombia in the sector between Ibague and Cali.
AU - AUTHORS: Nelson-H-W
SO - SOURCE: Leidse Geologische Mededelingen. Pages 1-75. 1959.
NT - NOTES: 22 (1957-58)
PB - PUBLISHER: Ryksmuseum van Geologie en Mineralogie. Leyden, Netherlands. 1959.
CP - COUNTRY OF PUBLICATION: Netherlands
PY - PUBLICATION YEAR: 1959
LA - LANGUAGE: English
LS - LANGUAGE OF SUMMARY: Dutch
AB - ABSTRACT: A geologic survey has been made of three areas in the Cordillera Central and Cordillera Occidental ranges of Colombia. The central Cordillera contains green schists and graphite schists with subordinate quartz phyllites and gneissic quartz schists, probably Paleozoic in age. Intercalations of metamorphosed diabase have been observed in places. The green schists are assumed to be tuffaceous in origin; the diabases may represent interstratified flows produced by the same volcanism. A description of Jurassic-Triassic formations on the eastern slope of the central Cordillera is given. On the western flank, basement rocks are in contact with the middle to upper Cretaceous Diabase group (submarine volcanics interbedded with cherts) which is unconformably overlain by Paleocene limnic deposits. Block faulting is characteristic of both flanks. The basement of the Cordillera Occidental consists largely of volcanic rocks with interbedded cherts containing middle to upper Cretaceous fossils, conformably underlain by the Dagua group and intruded by tonalites. The Dagua group is conformably overlain by rocks of the Diabase group. A typically imbricate structure characterizes the central part of the range.
DE - DESCRIPTORS: Cenozoic-; Colombia-; Cordillera-Central--Occidental; Cordillera-Central-Occidental; Cretaceous-; geologic-history; geologic-maps; geology-; Ibague-Cali-region; igneous-rocks; maps-; Mesozoic-; metamorphic-rocks; South-America; tectonics-; Tertiary-
CC - CATEGORY CODES: 16-Structural-geology
DT - DOCUMENT TYPE: Serial
BL - BIB LEVEL: Analytic
IL - ILLUSTRATION: illus. incl. colored geol. 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
IS - ISSN: 0075-8639
CO - CODEN: LGMEAX
AN - ACCESSION NUMBER: 1960-003465
UD - UPDATE CODE: 1960
Registro 2946 de 5614 - GeoRef Disc 1: 1785-1974
TI - TITLE: Mesozoic reefs of the Guajira peninsula, northeastern Colombia.
AU - AUTHORS: Rollins-John-Flett
SO - SOURCE: Pages 15. 1959.
NT - NOTES: Nebraska Acad. Sci., Ann. Mtg. 69, Pr.
PY - PUBLICATION YEAR: 1959
LA - LANGUAGE: English
DE - DESCRIPTORS: Colombia-; Cretaceous-; Guajira-Peninsula; historical-geology; Jurassic-; Mesozoic-; Mesozoic-reefs; reefs-; South-America
CC - CATEGORY CODES: 12-Stratigraphy
DT - DOCUMENT TYPE: Abstract; Serial
BL - BIB LEVEL: Analytic
IL - ILLUSTRATION: Lincoln.
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: 1960-004151
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