No. Registros Solicitud 1 5614 colombia



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RF - REFERENCE SOURCE: GeoRef, Copyright 2000, American Geological Institute.

AN - ACCESSION NUMBER: 1990-050546

UD - UPDATE CODE: 1990

Registro 4611 de 5614 - GeoRef Disc 3: 1985-1992

TI - TITLE: Novos registros de icnocenoses em varvitos do Grupo Itarare no Rio Grande do Sul, area de Sao Gabriel

Translated Title: New forms of ichnocenoses in varves from the Itarare Group of Rio Grande do Sul, Sao Gabriel area.

AU - AUTHORS: Dias-Fabricio-Maria-Elice; Guerra-Sommer-Margot; Piccoli-Ana-Emilia-Mendes; Kunz-K-Reinholdo

AF - AUTHOR AFFILIATION: Univ. Fed. Rio Grande do Sul, Inst. Geocienc., Rio Grande, Brazil

BK - BOOK TITLE: In: Late Paleozoic of South America; Project No. 211; IUGS-UNESCO; abstracts of papers presented to the 2nd meeting of the Working Group.

BA - BOOK AUTHORS: Amos-Arturo-J (editor); Archangelsky-Sergio (editor)

SO - SOURCE: Pages 33. 1985.

PB - PUBLISHER: IGCP. Bogota, Colombia. 1985.

RP - RESEARCH PROGRAM: IGCP (International Geological Correlation Programme)

CP - COUNTRY OF PUBLICATION: Colombia

PY - PUBLICATION YEAR: 1985

CN - CONFERENCE INFORMATION: 2nd meeting of the IGCP Working Group. Bogota, Colombia. Oct. 9-11, 1985.

LA - LANGUAGE: Portuguese

DE - DESCRIPTORS: Brazil-; ichnofossils-; IGCP-; Itarare-Subgroup; microfossils-; Paleozoic-; palynomorphs-; planar-bedding-structures; Rio-Grande-do-Sul-Brazil; Sao-Gabriel-Brazil; sedimentary-structures; South-America; stratigraphy-; upper-Paleozoic; varves-

CC - CATEGORY CODES: 12-Stratigraphy

DT - DOCUMENT TYPE: Abstract; Book; Conference-Document

BL - BIB LEVEL: Analytic

NN - ANNOTATION: IGCP Project No. 211.

RF - REFERENCE SOURCE: GeoRef, Copyright 2000, American Geological Institute.

AN - ACCESSION NUMBER: 1990-050547

UD - UPDATE CODE: 1990

Registro 4612 de 5614 - GeoRef Disc 3: 1985-1992

TI - TITLE: Consideracoes sobre Schizoneura gondwanensis Feistmantel no Permiano Superior da Bacia do Parana, Brasil

Translated Title: Considerations about Schizoneura gondwanensis Feistmantel in the Upper Permian of the Parana Basin, Brazil.

AU - AUTHORS: Cazzulo-Klepzig-Miriam

AF - AUTHOR AFFILIATION: Univ. Fed. Rio Grande do Sul, Inst. Geocienc., Rio Grande, Brazil

BK - BOOK TITLE: In: Late Paleozoic of South America; Project No. 211; IUGS-UNESCO; abstracts of papers presented to the 2nd meeting of the Working Group.

BA - BOOK AUTHORS: Amos-Arturo-J (editor); Archangelsky-Sergio (editor)

SO - SOURCE: Pages 33. 1985.

PB - PUBLISHER: IGCP. Bogota, Colombia. 1985.

RP - RESEARCH PROGRAM: IGCP (International Geological Correlation Programme)

CP - COUNTRY OF PUBLICATION: Colombia

PY - PUBLICATION YEAR: 1985

CN - CONFERENCE INFORMATION: 2nd meeting of the IGCP Working Group. Bogota, Colombia. Oct. 9-11, 1985.

LA - LANGUAGE: Portuguese

DE - DESCRIPTORS: Brazil-; Equisetales-; IGCP-; morphology-; paleobotany-; Paleozoic-; Parana-Basin; Permian-; Plantae-; Pteridophyta-; Schizoneura-gondwanensis; South-America; Sphenopsida-; Upper-Permian

CC - CATEGORY CODES: 09-Paleobotany

DT - DOCUMENT TYPE: Abstract; Book; Conference-Document

BL - BIB LEVEL: Analytic

NN - ANNOTATION: IGCP Project No. 211.

RF - REFERENCE SOURCE: GeoRef, Copyright 2000, American Geological Institute.

AN - ACCESSION NUMBER: 1990-050548

UD - UPDATE CODE: 1990

Registro 4613 de 5614 - GeoRef Disc 3: 1985-1992

TI - TITLE: Estudo integrado de icnocenose associada a molde de invertebrado e palinologia, em varvitos do Grupo Itarare (Permiano Inferior) do Rio Grande do Sul

Translated Title: Integral study of ichnocenoses associated with an invertebrate mold and palynology, in varves of the Itarare Group (Lower Permian) of Rio Grande do Sul.

AU - AUTHORS: Guerra-Sommer-Margot; Piccoli-Ana-Emilia-Mendes; Marquez-Toigo-Marleni; Saldanha-Paulo-Carlos

AF - AUTHOR AFFILIATION: Univ. Fed. Rio Grande do Sul, Inst. Geocienc., Rio Grande, Brazil

BK - BOOK TITLE: In: Late Paleozoic of South America; Project No. 211; IUGS-UNESCO; abstracts of papers presented to the 2nd meeting of the Working Group.

BA - BOOK AUTHORS: Amos-Arturo-J (editor); Archangelsky-Sergio (editor)

SO - SOURCE: Pages 34. 1985.

PB - PUBLISHER: IGCP. Bogota, Colombia. 1985.

RP - RESEARCH PROGRAM: IGCP (International Geological Correlation Programme)

CP - COUNTRY OF PUBLICATION: Colombia

PY - PUBLICATION YEAR: 1985

CN - CONFERENCE INFORMATION: 2nd meeting of the IGCP Working Group. Bogota, Colombia. Oct. 9-11, 1985.

LA - LANGUAGE: Portuguese

DE - DESCRIPTORS: biostratigraphy-; Brazil-; ichnofossils-; Invertebrata-; Itarare-Subgroup; Lower-Permian; microfossils-; paleoenvironment-; Paleozoic-; palynomorphs-; Permian-; planar-bedding-structures; Rio-Grande-do-Sul-Brazil; sedimentary-structures; South-America; stratigraphy-; varves-

CC - CATEGORY CODES: 12-Stratigraphy

DT - DOCUMENT TYPE: Abstract; Book; Conference-Document

BL - BIB LEVEL: Analytic

NN - ANNOTATION: IGCP Project No. 211.

RF - REFERENCE SOURCE: GeoRef, Copyright 2000, American Geological Institute.

AN - ACCESSION NUMBER: 1990-050549

UD - UPDATE CODE: 1990

Registro 4614 de 5614 - GeoRef Disc 3: 1985-1992

TI - TITLE: Estudos geologicos integrados no Bacia do Parana

Translated Title: Integrated geologic study of the Parana Basin.

AU - AUTHORS: Correa-da-Silva-Zuleika-Carreta; Piccoli-Ana-Emilia-Mendes; Marquez-Toigo-Marleni; Dias-Fabricio-Maria-Elice; Cazzulo-Klepzig-Miriam; Guerra-Sommer-Margot

AF - AUTHOR AFFILIATION: Univ. Fed. Rio Grande do Sul, Inst. Geocienc., Rio Grande, Brazil

BK - BOOK TITLE: In: Late Paleozoic of South America; Project No. 211; IUGS-UNESCO; abstracts of papers presented to the 2nd meeting of the Working Group.

BA - BOOK AUTHORS: Amos-Arturo-J (editor); Archangelsky-Sergio (editor)

SO - SOURCE: Pages 34. 1985.

PB - PUBLISHER: IGCP. Bogota, Colombia. 1985.

RP - RESEARCH PROGRAM: IGCP (International Geological Correlation Programme)

CP - COUNTRY OF PUBLICATION: Colombia

PY - PUBLICATION YEAR: 1985

CN - CONFERENCE INFORMATION: 2nd meeting of the IGCP Working Group. Bogota, Colombia. Oct. 9-11, 1985.

LA - LANGUAGE: Portuguese

DE - DESCRIPTORS: areal-geology; Brazil-; IGCP-; Parana-Basin; South-America

CC - CATEGORY CODES: 13-Areal-geology

DT - DOCUMENT TYPE: Abstract; Book; Conference-Document

BL - BIB LEVEL: Analytic

NN - ANNOTATION: IGCP Project No. 211.

RF - REFERENCE SOURCE: GeoRef, Copyright 2000, American Geological Institute.

AN - ACCESSION NUMBER: 1990-050550

UD - UPDATE CODE: 1990

Registro 4615 de 5614 - GeoRef Disc 3: 1985-1992

TI - TITLE: Estratigrafia da bacia carbonifera de Charqueadas-Santa Rita, RS, Brasil

Translated Title: Stratigraphy of the coal basin of Charqueadas-Santa Rita, RS, Brazil.

AU - AUTHORS: Piccoli-Ana-Emilia-Mendes; Holz-Michael; Sarturi-Jorge-Antonio-Degrazia; Munaro-Pierre; Granitoff-Wladimir

AF - AUTHOR AFFILIATION: Univ. Fed. Rio Grande do Sul, Inst. Geocienc., Rio Grande, Brazil

BK - BOOK TITLE: In: Late Paleozoic of South America; Project No. 211; IUGS-UNESCO; abstracts of papers presented to the 2nd meeting of the Working Group.

BA - BOOK AUTHORS: Amos-Arturo-J (editor); Archangelsky-Sergio (editor)

SO - SOURCE: Pages 35. 1985.

PB - PUBLISHER: IGCP. Bogota, Colombia. 1985.

RP - RESEARCH PROGRAM: IGCP (International Geological Correlation Programme)

CP - COUNTRY OF PUBLICATION: Colombia

PY - PUBLICATION YEAR: 1985

CN - CONFERENCE INFORMATION: 2nd meeting of the IGCP Working Group. Bogota, Colombia. Oct. 9-11, 1985.

LA - LANGUAGE: Portuguese

DE - DESCRIPTORS: basins-; Brazil-; carbonaceous-composition; Charqueadas-; coal-; IGCP-; Itarare-Subgroup; microfossils-; organic-residues; paleoenvironment-; Paleozoic-; palynomorphs-; Parana-Basin; Permian-; Rio-Bonito-Formation; Rio-Grande-do-Sul-Brazil; Santa-Rita; sedimentary-basins; sedimentary-rocks; South-America; stratigraphy-; upper-Paleozoic

CC - CATEGORY CODES: 12-Stratigraphy

DT - DOCUMENT TYPE: Abstract; Book; Conference-Document

BL - BIB LEVEL: Analytic

NN - ANNOTATION: IGCP Project No. 211.

RF - REFERENCE SOURCE: GeoRef, Copyright 2000, American Geological Institute.

AN - ACCESSION NUMBER: 1990-050551

UD - UPDATE CODE: 1990

Registro 4616 de 5614 - GeoRef Disc 3: 1985-1992

TI - TITLE: Sucessao paleofloristica do Gondwana da Bacia do Parana, Rio Grande do Sul

Translated Title: Paleoflora succession of the Gondwana Parana Basin, Rio Grande do Sul.

AU - AUTHORS: Cazzulo-Klepzig-Miriam; Guerra-Sommer-Margot

AF - AUTHOR AFFILIATION: Univ. Fed. Rio Grande do Sul, Inst. Geocienc., Rio Grande, Brazil

BK - BOOK TITLE: In: Late Paleozoic of South America; Project No. 211; IUGS-UNESCO; abstracts of papers presented to the 2nd meeting of the Working Group.

BA - BOOK AUTHORS: Amos-Arturo-J (editor); Archangelsky-Sergio (editor)

SO - SOURCE: Pages 35. 1985.

PB - PUBLISHER: IGCP. Bogota, Colombia. 1985.

RP - RESEARCH PROGRAM: IGCP (International Geological Correlation Programme)

CP - COUNTRY OF PUBLICATION: Colombia

PY - PUBLICATION YEAR: 1985

CN - CONFERENCE INFORMATION: 2nd meeting of the IGCP Working Group. Bogota, Colombia. Oct. 9-11, 1985.

LA - LANGUAGE: Portuguese

DE - DESCRIPTORS: biostratigraphy-; Brazil-; Gondwana-; IGCP-; Irati-Formation; Itarare-Subgroup; Mesozoic-; Paleozoic-; Palermo-Formation; Parana-Basin; Permian-; Plantae-; Rio-Bonito-Formation; Rio-Grande-do-Sul-Brazil; Santa-Maria-Formation; South-America; stratigraphy-; Triassic-

CC - CATEGORY CODES: 12-Stratigraphy

DT - DOCUMENT TYPE: Abstract; Book; Conference-Document

BL - BIB LEVEL: Analytic

NN - ANNOTATION: IGCP Project No. 211.

RF - REFERENCE SOURCE: GeoRef, Copyright 2000, American Geological Institute.

AN - ACCESSION NUMBER: 1990-050552

UD - UPDATE CODE: 1990

Registro 4617 de 5614 - GeoRef Disc 3: 1985-1992

TI - TITLE: Um novo Psilopteridae (Aves, Gruiformes) dos sedimentos terciarios de Itaborai, Rio de Janeiro, Brasil

Translated Title: A new Psilopteridae (Aves, Gruiformes) from Tertiary sediments of Itaborai, Rio de Janeiro, Brazil.

AU - AUTHORS: Alvarenga-Herculano-M-F

AF - AUTHOR AFFILIATION: Rua Colombia 99, Taubate, Brazil

BK - BOOK TITLE: In: Coletanea de trabalhos paleontologicos

Translated Title: Collection of paleontologic works.

BA - BOOK AUTHORS: Campos-Diogenes-de-Almeida; Ferreira-Candido-Simoes; Brito-Ignacio-Machado; Viana-Cleantho-Fialho

SO - SOURCE: Serie Geologia. Secao Paleontologia e Estratigrafia. 27; Pages 17-20. 1985.

NT - NOTES: Brazil, Dep. Nac. Prod. Miner., Sec. Paleontol. and Estratigr., No. 2

PB - PUBLISHER: Departamento Nacional da Producao Mineral. Rio de Janeiro, Brazil. 1985.

CP - COUNTRY OF PUBLICATION: Brazil

PY - PUBLICATION YEAR: 1985

CN - CONFERENCE INFORMATION: VIII congresso brasileiro de paleontologia. Rio de Janeiro, Brazil. July 3-8, 1983.

LA - LANGUAGE: Portuguese

LS - LANGUAGE OF SUMMARY: English

DE - DESCRIPTORS: Aves-; Brazil-; Cabucu-; Cenozoic-; Chordata-; Gruiformes-; Itaborai-Brazil; Neornithes-; new-taxa; Paleocene-; Paleogene-; paleontology-; Paleopsilopterus-taboraiensis; Psilopteridae-; Rio-de-Janeiro-Brazil; Sao-Jose; South-America; taxonomy-; Tertiary-; Tetrapoda-; Vertebrata-

CC - CATEGORY CODES: 11-Vertebrate-paleontology

DT - DOCUMENT TYPE: Serial; Conference-Document

BL - BIB LEVEL: Analytic

IL - ILLUSTRATION: Refs: 13; illus.

RF - REFERENCE SOURCE: GeoRef, Copyright 2000, American Geological Institute. Reference includes data from Bibliography of Fossil Vertebrates, Society of Vertebrate Paleontology, Berkeley, CA, United States

CO - CODEN: #02999

AN - ACCESSION NUMBER: 1991-006192

UD - UPDATE CODE: 1991

Registro 4618 de 5614 - GeoRef Disc 3: 1985-1992

TI - TITLE: New data and new ostracodes from Pebas Formation; upper Amazon Basin.

AU - AUTHORS: Purper-Ivone; Pinto-Iraja-Damiani

AF - AUTHOR AFFILIATION: Univ. Fed. Rio Grande do Sul, Porto Alegre, Brazil

BK - BOOK TITLE: In: Coletanea de trabalhos paleontologicos

Translated Title: Collection of paleontologic works.

BA - BOOK AUTHORS: Campos-Diogenes-de-Almeida; Ferreira-Candido-Simoes; Brito-Ignacio-Machado; Viana-Cleantho-Fialho

SO - SOURCE: Serie Geologia. Secao Paleontologia e Estratigrafia. 27; Pages 427-434. 1985.

NT - NOTES: Brazil, Dep. Nac. Prod. Miner., Sec. Paleontol. and Estratigr., No. 2

PB - PUBLISHER: Departamento Nacional da Producao Mineral. Rio de Janeiro, Brazil. 1985.

CP - COUNTRY OF PUBLICATION: Brazil

PY - PUBLICATION YEAR: 1985

CN - CONFERENCE INFORMATION: VIII congresso brasileiro de paleontologia. Rio de Janeiro, Brazil. July 3-8, 1983.

LA - LANGUAGE: English

DE - DESCRIPTORS: Amazon-Basin; Amazonas-Brazil; Amazonas-Colombia; Amazonas-Peru; Arthropoda-; Brazil-; Cenozoic-; Colombia-; Crustacea-; Cyprideis-drsticae; Cyprideis-karaionae; Cytheracea-; Cytherideinae-; Cytherocopina-; distribution-; faunal-studies; Invertebrata-; Loreo-; Mandibulata-; microfossils-; morphology-; Neogene-; new-taxa; occurrence-; Ostracoda-; paleontology-; Pebas-Formation; Peru-; Pleistocene-; Pliocene-; Podocopida-; Quaternary-; South-America; stratigraphy-; taxonomy-; Tertiary-

CC - CATEGORY CODES: 10-Invertebrate-paleontology

DT - DOCUMENT TYPE: Serial; Conference-Document

BL - BIB LEVEL: Analytic

IL - ILLUSTRATION: Refs: 12; illus. incl. 1 plate, strat. col., sketch map.

RF - REFERENCE SOURCE: GeoRef, Copyright 2000, American Geological Institute.

CO - CODEN: #02999

AN - ACCESSION NUMBER: 1991-006246

UD - UPDATE CODE: 1991

Registro 4619 de 5614 - GeoRef Disc 3: 1985-1992

TI - TITLE: Hierro oolitico en el Norte de Sur America

Translated Title: Oolitic iron in northern South America.

AU - AUTHORS: Ulloa-E-Carlos-M

AF - AUTHOR AFFILIATION: Minist. Minas y Energia, Inst. Nac. Invest. Geol.-Min., Merida, Venezuela

BK - BOOK TITLE: In: Transactions of the Fourth Latin American geological conference.

BA - BOOK AUTHORS: Anonymous

SO - SOURCE: Transactions of the Latin American Geological Conference. 4; Pages 263-275. 1985.

PB - PUBLISHER: [publisher unknown]. [location varies], International. 1985.

CP - COUNTRY OF PUBLICATION: International

PY - PUBLICATION YEAR: 1985

CN - CONFERENCE INFORMATION: Fourth Latin American geological conference. Port-of-Spain, Trinidad and Tobago. July 7-15, 1979.

LA - LANGUAGE: Spanish

LS - LANGUAGE OF SUMMARY: English

DE - DESCRIPTORS: Andes-; Cenozoic-; chemically-precipitated-rocks; Colombia-; Concentracion-Formation; El-Limbo-Sandstone-Formation; Eocene-; ferruginous-composition; Guyana-Shield; Humocaro-; iron-formations; iron-minerals; lithostratigraphy-; middle-Eocene; Mitu-; oolitic-texture; Paleogene-; Pauji-Formation; Paz-de-Rio; provenance-; Quebrada-Arriba-Formation; Sabanalarga-; sedimentary-rocks; Socha-Formation; South-America; stratigraphy-; Tertiary-; textures-; upper-Tertiary; Venezuela-

CC - CATEGORY CODES: 06A-Sedimentary-petrology

DT - DOCUMENT TYPE: Serial; Conference-Document

BL - BIB LEVEL: Analytic

IL - ILLUSTRATION: Refs: 22; illus. incl. 1 table, charts, geol. sketch maps.

RF - REFERENCE SOURCE: GeoRef, Copyright 2000, American Geological Institute.

CO - CODEN: #03393

AN - ACCESSION NUMBER: 1992-027128

UD - UPDATE CODE: 1992

Registro 4620 de 5614 - GeoRef Disc 3: 1985-1992

TI - TITLE: Variaciones climaticas del Pleistoceno superior y del Holoceno en la Sabana de Bogota

Translated Title: Climatic variations of the upper Pleistocene and Holocene of the Sabana de Bogota.

AU - AUTHORS: Duenas-J-Hernando

AF - AUTHOR AFFILIATION: INGEOMINAS, Bogota, Colombia

BK - BOOK TITLE: In: Transactions of the Fourth Latin American geological conference.

BA - BOOK AUTHORS: Anonymous

SO - SOURCE: Transactions of the Latin American Geological Conference. 4; Pages 310-319. 1985.

PB - PUBLISHER: [publisher unknown]. [location varies], International. 1985.

CP - COUNTRY OF PUBLICATION: International

PY - PUBLICATION YEAR: 1985

CN - CONFERENCE INFORMATION: Fourth Latin American geological conference. Port-of-Spain, Trinidad and Tobago. July 7-15, 1979.

LA - LANGUAGE: Spanish

LS - LANGUAGE OF SUMMARY: English

DE - DESCRIPTORS: Andes-; Bogota-Colombia; Cenozoic-; climate-; Colombia-; Eastern-Cordillera; Holocene-; interpretation-; paleoclimatology-; Pleistocene-; pollen-diagrams; Quaternary-; Sabana-de-Bogota; South-America; stratigraphy-; upper-Pleistocene; variations-; vegetation-

CC - CATEGORY CODES: 24-Quaternary-geology

DT - DOCUMENT TYPE: Serial; Conference-Document

BL - BIB LEVEL: Analytic

IL - ILLUSTRATION: Refs: 18; illus. incl. charts, strat. col., geol. sketch map.

RF - REFERENCE SOURCE: GeoRef, Copyright 2000, American Geological Institute.

CO - CODEN: #03393

AN - ACCESSION NUMBER: 1992-027132

UD - UPDATE CODE: 1992

Registro 4621 de 5614 - GeoRef Disc 3: 1985-1992

TI - TITLE: Kondous laventicus, a new ceboid primate from the Miocene of the La Venta, Colombia, South America.

AU - AUTHORS: Setoguchi-Takeshi

SO - SOURCE: Folia Primatologica. 44; 2, Pages 96-101. 1985.

PB - PUBLISHER: S. Karger. Basel, Switzerland. 1985.

CP - COUNTRY OF PUBLICATION: Switzerland

PY - PUBLICATION YEAR: 1985

LA - LANGUAGE: English

DE - DESCRIPTORS: Atelidae-; Cenozoic-; Chordata-; Colombia-; Eutheria-; Kondous-; Kondous-laventicus; Mammalia-; Miocene-; Neogene-; new-taxa; Primates-; South-America; 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 of Fossil Vertebrates, Society of Vertebrate Paleontology, Berkeley, CA, United States

IS - ISSN: 0015-5713

CO - CODEN: FPRMAB

AN - ACCESSION NUMBER: 1996-016046

UD - UPDATE CODE: 199606

Registro 4622 de 5614 - GeoRef Disc 3: 1985-1992

TI - TITLE: Miocene marmosets; first fossil evidence.

AU - AUTHORS: Setoguchi-Takeshi; Rosenberger-Alfred-L

SO - SOURCE: International Journal of Primatology. 6; 6, Pages 615-625. 1985.

PB - PUBLISHER: Plenum. New York, NY, United States. 1985.

CP - COUNTRY OF PUBLICATION: United-States

PY - PUBLICATION YEAR: 1985

LA - LANGUAGE: English

DE - DESCRIPTORS: Cebidae-; Cenozoic-; Chordata-; Colombia-; Eutheria-; Mammalia-; Micodon-; Micodon-kiotensis; Miocene-; Neogene-; new-taxa; Primates-; South-America; 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 of Fossil Vertebrates, Society of Vertebrate Paleontology, Berkeley, CA, United States

IS - ISSN: 0164-0291

AN - ACCESSION NUMBER: 1996-016051

UD - UPDATE CODE: 199606

Registro 4623 de 5614 - GeoRef Disc 4: 1993-1996

TI - TITLE: Long-period volcano seismicity; its source and use in eruption forecasting.

AU - AUTHORS: Chouet-Bernard-A

AF - AUTHOR AFFILIATION: U. S. Geological Survey, Menlo Park, CA, United States

SO - SOURCE: Nature (London). 380; 6572, Pages 309-316. 1996.

PB - PUBLISHER: Macmillan Journals. London, United Kingdom. 1996.

RP - RESEARCH PROGRAM: USGSOP (Non-USGS publications with USGS authors)

CP - COUNTRY OF PUBLICATION: United-Kingdom

PY - PUBLICATION YEAR: 1996

LA - LANGUAGE: English

DE - DESCRIPTORS: Alaska-; Andes-; Asia-; Colombia-; earthquakes-; elastic-waves; eruptions-; Far-East; fluctuations-; Galeras-; geologic-hazards; long-period-waves; Luzon-; magma-chambers; Mount-Pinatubo; Philippine-Islands; prediction-; pressure-; Redoubt-; seismic-sources; seismic-waves; seismicity-; seismology-; shallow-depth; South-America; Southern-Alaska; spectral-analysis; stratovolcanoes-; United-States; velocity-analysis; volcanic-earthquakes; volcanoes-

CC - CATEGORY CODES: 19-Seismology; 22-Environmental-geology

DT - DOCUMENT TYPE: Serial

BL - BIB LEVEL: Analytic

MC - MAP COORDINATES: LAT: N603000; N603000; LONG: W1524600; W1524600.

LAT: S040000; N121500; LONG: W0670000; W0790000.

IL - ILLUSTRATION: Refs: 77; illus.

RF - REFERENCE SOURCE: GeoRef, Copyright 2000, American Geological Institute.

IS - ISSN: 0028-0836

CO - CODEN: NATUAS

AN - ACCESSION NUMBER: 1996-032895

UD - UPDATE CODE: 199612

Registro 4624 de 5614 - GeoRef Disc 4: 1993-1996

TI - TITLE: The relationship between fumarole gas composition and eruptive activity at Galeras Volcano, Colombia.

AU - AUTHORS: Fischer-Tobias-P; Arehart-Greg-B; Sturchio-Neil-C; Williams-Stanley-N

AF - AUTHOR AFFILIATION: Arizona State University, Department of Geology, Tempe, AZ, United States

SO - SOURCE: Geology (Boulder). 24; 6, Pages 531-534. 1996.

PB - PUBLISHER: Geological Society of America (GSA). Boulder, CO, United States. 1996.

CP - COUNTRY OF PUBLICATION: United-States

PY - PUBLICATION YEAR: 1996

LA - LANGUAGE: English

AB - ABSTRACT: Forecasting volcanic eruptions is critical to the mitigation of hazards for the millions of people living dangerously close to active volcanoes. Volcanic gases collected over five years from Galeras Volcano, Colombia, and analyzed for chemical and isotopic composition show the effects of long-term degassing of the magma body and a gradual decline in sulfur content of the gases. In Contrast, short-term (weeks), sharp variations are the precursors to explosive eruptions. Selective absorption of magmatic SO (sub 2) and HCl due to interaction with low-temperature geothermal waters allows the gas emissions to become dominated by CO (sub 2) . Absorption appears to precede an eruption because magmatic volatiles are slowed or refined by a sealing carapace, reducing the total flux of volatiles and allowing the hydrothermal volatiles to dominate gas emissions. Temporal changes in gas compositions were correlated with eruptive activity and provide new evidence bearing on the mechanism of this type of "pneumatic" explosive eruptions.

DE - DESCRIPTORS: Andes-; carbon-dioxide; Colombia-; degassing-; eruptions-; explosive-eruptions; fumaroles-; Galeras-; gases-; geologic-hazards; hydrochloric-acid; hydrofluoric-acid; hydrogen-sulfide; inorganic-acids; magmas-; Narino-Colombia; precursors-; South-America; sulfur-dioxide; thermal-waters; volatiles-; volcanic-risk; volcanoes-; volcanology-

CC - CATEGORY CODES: 02A-General-geochemistry; 22-Environmental-geology


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