No. Registros Solicitud 1 5614 colombia



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TI - TITLE: Estimating mean annual rainfall for the middle Miocene La Venta fauna of Colombia from the guild structure of extant neotropical mammalian faunas.

AU - AUTHORS: Kay-R-F; Madden-R-H

AF - AUTHOR AFFILIATION: Duke University Medical Center, Durham, NC, United States

BK - BOOK TITLE: In: Fifty-sixth annual meeting; Society of Vertebrate Paleontology; abstracts of papers.

BA - BOOK AUTHORS: Padian-Kevin (editor)

SO - SOURCE: Journal of Vertebrate Paleontology. 16; 3, Suppl., Pages 44. 1996.

PB - PUBLISHER: University of Oklahoma. Norman, OK, United States. 1996.

CP - COUNTRY OF PUBLICATION: United-States

PY - PUBLICATION YEAR: 1996

CN - CONFERENCE INFORMATION: Society of Vertebrate Paleontology; Fifty-sixth annual meeting. New York, NY, United States. Oct. 16-19, 1996.

LA - LANGUAGE: English

DE - DESCRIPTORS: atmospheric-precipitation; Cenozoic-; Chordata-; Colombia-; correlation-; Eutheria-; forests-; La-Venta-Colombia; Mammalia-; mass-; middle-Miocene; Miocene-; morphology-; Neogene-; paleoclimatology-; Primates-; rain-; reconstruction-; South-America; statistical-analysis; Tertiary-; Tetrapoda-; Theria-; tropical-environment; vegetation-; Vertebrata-

CC - CATEGORY CODES: 12-Stratigraphy

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

BL - BIB LEVEL: Analytic

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

IS - ISSN: 0272-4634

AN - ACCESSION NUMBER: 1997-025777

UD - UPDATE CODE: 199709

Registro 4714 de 5614 - GeoRef Disc 4: 1993-1996

TI - TITLE: Euclase from Colombia showing three-phase inclusions.

AU - AUTHORS: Duroc-Danner-J-M

AF - AUTHOR AFFILIATION: Geneva, Switzerland

SO - SOURCE: Journal of Gemmology. 25; 3, Pages 175-176. 1996.

PB - PUBLISHER: Gemmological Association and Gem Testing Laboratory of Great Britian. London, United Kingdom. 1996.

CP - COUNTRY OF PUBLICATION: United-Kingdom

PY - PUBLICATION YEAR: 1996

LA - LANGUAGE: English

DE - DESCRIPTORS: Colombia-; euclase-; inclusions-; mineral-data; nesosilicates-; optical-properties; orthosilicates-; physical-properties; silicates-; South-America

CC - CATEGORY CODES: 01B-Mineralogy-of-silicates

DT - DOCUMENT TYPE: Serial

BL - BIB LEVEL: Analytic

IL - ILLUSTRATION: Refs: 6; illus.

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

IS - ISSN: 1355-4565

AN - ACCESSION NUMBER: 1997-026541

UD - UPDATE CODE: 199709

Registro 4715 de 5614 - GeoRef Disc 4: 1993-1996

BK - BOOK TITLE: Geochemical data from Colombia; Part A, General discussion.

BA - BOOK AUTHORS: Oland-Gustav-P (editor); Orris-Greta-J (editor)

BF - BOOK AUTHOR AFFILIATION: U. S. Geological Survey, Tucson, AZ, United States

SO - SOURCE: Open-File Report - U. S. Geological Survey. 1996.

NT - NOTES: U.S. Geological Survey Center for Inter-American Mineral Resource Investigations; Instituto Nacional de Investigaciones Geologico-Mineras

PB - PUBLISHER: U. S. Geological Survey. Reston, VA, United States. Pages: 13. 1996.

RP - RESEARCH PROGRAM: USGS (Publications of the U. S. Geological Survey)

CP - COUNTRY OF PUBLICATION: United-States

PY - PUBLICATION YEAR: 1996

LA - LANGUAGE: English

DE - DESCRIPTORS: catalogs-; chemical-elements; Colombia-; data-; geochemistry-; rocks-; soils-; South-America; surveys-; USGS-

CC - CATEGORY CODES: 02C-Geochemistry-of-rocks,-soils,-and-sediments

DT - DOCUMENT TYPE: Serial; Report

BL - BIB LEVEL: Monograph

MC - MAP COORDINATES: LAT: S040000; N121500; LONG: W0670000; W0790000.

IL - ILLUSTRATION: Refs: 2; 3 tables, sketch maps.

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

IS - ISSN: 0196-1497

CO - CODEN: XGROAG

RN - REPORT NUMBER: OF 96-0542-A

AV - AVAILABILITY: U. S. Geol. Surv., Denver, CO, United States

AN - ACCESSION NUMBER: 1997-028622

UD - UPDATE CODE: 199710

Registro 4716 de 5614 - GeoRef Disc 4: 1993-1996

BK - BOOK TITLE: Geochemical data from Colombia; Part B, Data printout of analytical data.

BA - BOOK AUTHORS: Oland-Gustav-P (editor); Orris-Greta-J (editor)

BF - BOOK AUTHOR AFFILIATION: U. S. Geological Survey, Tucson, AZ, United States

SO - SOURCE: Open-File Report - U. S. Geological Survey. 1996.

NT - NOTES: U.S. Geological Survey Center for Inter-American Mineral Resource Investigations; Instituto Nacional de Investigaciones Geologico-Mineras

PB - PUBLISHER: U. S. Geological Survey. Reston, VA, United States. Pages: 421. 1996.

RP - RESEARCH PROGRAM: USGS (Publications of the U. S. Geological Survey)

CP - COUNTRY OF PUBLICATION: United-States

PY - PUBLICATION YEAR: 1996

LA - LANGUAGE: English

DE - DESCRIPTORS: chemical-analysis; Colombia-; data-bases; geochemistry-; rocks-; soils-; South-America; surveys-; USGS-

CC - CATEGORY CODES: 02C-Geochemistry-of-rocks,-soils,-and-sediments

DT - DOCUMENT TYPE: Serial; Report

BL - BIB LEVEL: Monograph

MC - MAP COORDINATES: LAT: S040000; N121500; LONG: W0670000; W0790000.

IL - ILLUSTRATION: 32 tables.

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

IS - ISSN: 0196-1497

CO - CODEN: XGROAG

RN - REPORT NUMBER: OF 96-0542-B

AV - AVAILABILITY: U. S. Geol. Surv., Denver, CO, United States

AN - ACCESSION NUMBER: 1997-028623

UD - UPDATE CODE: 199710

Registro 4717 de 5614 - GeoRef Disc 4: 1993-1996

TI - TITLE: Seismic monitoring and eruption forecasting of volcanoes; a review of the state-of-the-art and case histories.

AU - AUTHORS: McNutt-S-R

AF - AUTHOR AFFILIATION: University of Alaska, Alaska Volcano Observatory, Fairbanks, AK, United States

BK - BOOK TITLE: In: Monitoring and mitigation of volcano hazards.

BA - BOOK AUTHORS: Scarpa-Roberto (editor); Tilling-Robert-I (editor)

SO - SOURCE: Pages 99-146. 1996.

PB - PUBLISHER: Springer-Verlag. Berlin, Federal Republic of Germany. 1996.

CP - COUNTRY OF PUBLICATION: Federal-Republic-of-Germany

PY - PUBLICATION YEAR: 1996

LA - LANGUAGE: English

DE - DESCRIPTORS: Alaska-; Andes-; Asia-; Cascade-Range; case-studies; Colombia-; earthquakes-; eruptions-; Far-East; Galeras-; geologic-hazards; Honshu-; Ito-Oki; Izu-Oshima; Izu-shichito; Japan-; Kyushu-; Luzon-; monitoring-; Mount-Mihara; Mount-Pinatubo; Mount-Saint-Helens; Nagasaki-Japan; Philippine-Islands; prediction-; Redoubt-; seismic-networks; seismicity-; Skamania-County-Washington; South-America; Southern-Alaska; Spurr-; swarms-; United-States; Unzen-; volcanic-earthquakes; volcanic-risk; volcanoes-; Washington-

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

DT - DOCUMENT TYPE: Book

BL - BIB LEVEL: Analytic

IL - ILLUSTRATION: Refs: 222; illus. incl. sects., 4 tables, sketch maps.

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

IB - ISBN: 3-540-60713-7

AN - ACCESSION NUMBER: 1997-031512

UD - UPDATE CODE: 199710

Registro 4718 de 5614 - GeoRef Disc 4: 1993-1996

TI - TITLE: Chemical characters of the gaseous phase in different stages of volcanism; precursors and volcanic activity.

AU - AUTHORS: Martini-M

AF - AUTHOR AFFILIATION: Universita di Firenze, Dipartimento di Scienze della Terra, Florence, Italy

BK - BOOK TITLE: In: Monitoring and mitigation of volcano hazards.

BA - BOOK AUTHORS: Scarpa-Roberto (editor); Tilling-Robert-I (editor)

SO - SOURCE: Pages 199-219. 1996.

PB - PUBLISHER: Springer-Verlag. Berlin, Federal Republic of Germany. 1996.

CP - COUNTRY OF PUBLICATION: Federal-Republic-of-Germany

PY - PUBLICATION YEAR: 1996

LA - LANGUAGE: English

DE - DESCRIPTORS: Campania-Italy; case-studies; Central-America; Chiapas-Mexico; Colombia-; Costa-Rica; equilibrium-; eruptions-; Europe-; fumaroles-; gaseous-phase; gases-; geochemistry-; geologic-hazards; Italy-; Lipari-Islands; magmas-; Mexico-; Momotombo-; monitoring-; Nevado-del-Ruiz; Nicaragua-; Phlegraean-Fields; Poas-; precursors-; pressure-; Sicily-Italy; South-America; Southern-Europe; Tacana-; variations-; volatile-elements; volcanic-risk; volcanism-; volcanoes-; Vulcano-

CC - CATEGORY CODES: 24-Quaternary-geology; 22-Environmental-geology

DT - DOCUMENT TYPE: Book

BL - BIB LEVEL: Analytic

IL - ILLUSTRATION: Refs: 65; illus. incl. 5 tables.

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

IB - ISBN: 3-540-60713-7

AN - ACCESSION NUMBER: 1997-031515

UD - UPDATE CODE: 199710

Registro 4719 de 5614 - GeoRef Disc 4: 1993-1996

TI - TITLE: The integrated mobile volcano-monitoring system used by the Volcano Disaster Assistance Program (VDAP).

AU - AUTHORS: Murray-T-L; Ewert-J-W; Lockhart-A-B; LaHusen-R-G

AF - AUTHOR AFFILIATION: U. S. Geological Survey, Cascades Volcanological Observatory, Vancouver, WA, United States

BK - BOOK TITLE: In: Monitoring and mitigation of volcano hazards.

BA - BOOK AUTHORS: Scarpa-Roberto (editor); Tilling-Robert-I (editor)

SO - SOURCE: Pages 315-362. 1996.

PB - PUBLISHER: Springer-Verlag. Berlin, Federal Republic of Germany. 1996.

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

CP - COUNTRY OF PUBLICATION: Federal-Republic-of-Germany

PY - PUBLICATION YEAR: 1996

LA - LANGUAGE: English

DE - DESCRIPTORS: Asia-; case-studies; Colombia-; deformation-; earthquakes-; electronic-distance-measurement; eruptions-; Far-East; geodesy-; geologic-hazards; leveling-; Luzon-; monitoring-; Mount-Pinatubo; Nevado-del-Ruiz; Philippine-Islands; seismicity-; South-America; spectral-analysis; telemetry-; tiltmeters-; volcanic-earthquakes; volcanic-risk; Volcano-Disaster-Assistance-Program; volcanoes-

CC - CATEGORY CODES: 22-Environmental-geology; 20-Applied-geophysics

DT - DOCUMENT TYPE: Book

BL - BIB LEVEL: Analytic

IL - ILLUSTRATION: Refs: 91; illus.

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

IB - ISBN: 3-540-60713-7

AN - ACCESSION NUMBER: 1997-031519

UD - UPDATE CODE: 199710

Registro 4720 de 5614 - GeoRef Disc 4: 1993-1996

TI - TITLE: The management of volcano emergencies; Nevado del Ruiz.

AU - AUTHORS: Voight-Barry

AF - AUTHOR AFFILIATION: U. S. Geological Survey, USA, United States

BK - BOOK TITLE: In: Monitoring and mitigation of volcano hazards.

BA - BOOK AUTHORS: Scarpa-Roberto (editor); Tilling-Robert-I (editor)

SO - SOURCE: Pages 719-769. 1996.

PB - PUBLISHER: Springer-Verlag. Berlin, Federal Republic of Germany. 1996.

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

CP - COUNTRY OF PUBLICATION: Federal-Republic-of-Germany

PY - PUBLICATION YEAR: 1996

LA - LANGUAGE: English

DE - DESCRIPTORS: catastrophes-; Colombia-; damage-; debris-flows; earthquakes-; geologic-hazards; lahars-; mass-movements; Nevado-del-Ruiz; precursors-; preventive-measures; pyroclastic-flows; risk-assessment; South-America; volcanic-earthquakes; volcanic-risk; volcanoes-

CC - CATEGORY CODES: 22-Environmental-geology

DT - DOCUMENT TYPE: Book

BL - BIB LEVEL: Analytic

MC - MAP COORDINATES: LAT: N045300; N045300; LONG: W0752200; W0752200.

IL - ILLUSTRATION: Refs: 99; illus. incl. 1 table, sketch maps.

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

IB - ISBN: 3-540-60713-7

AN - ACCESSION NUMBER: 1997-031531

UD - UPDATE CODE: 199710

Registro 4721 de 5614 - GeoRef Disc 4: 1993-1996

TI - TITLE: Slope stabilization at El Cerrejon coal mine, Colombia, South America.

AU - AUTHORS: Jaramillo-M

AF - AUTHOR AFFILIATION: Columbia Resources (Intercor), Baranquilla, Colombia

SO - SOURCE: Mining Engineering. 48; 12, Pages 49-54. 1996.

PB - PUBLISHER: Society for Mining, Metallurgy, and Exploration. Littleton, CO, United States. 1996.

CP - COUNTRY OF PUBLICATION: United-States

PY - PUBLICATION YEAR: 1996

LA - LANGUAGE: English

DE - DESCRIPTORS: bedrock-; carbonate-rocks; clastic-rocks; Colombia-; deformation-; El-Cerrejon-Mine; faults-; limestone-; mine-dewatering; mining-geology; rock-mechanics; sandstone-; sedimentary-rocks; slope-stability; South-America; strain-; stress-

CC - CATEGORY CODES: 26A-Economic-geology,-general,-deposits

DT - DOCUMENT TYPE: Serial

BL - BIB LEVEL: Analytic

IL - ILLUSTRATION: Refs: 2; illus. incl. 2 tables.

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

IS - ISSN: 0026-5187

CO - CODEN: MIENAB

AN - ACCESSION NUMBER: 1997-032764

UD - UPDATE CODE: 199711

Registro 4722 de 5614 - GeoRef Disc 4: 1993-1996

BK - BOOK TITLE: A tale of two large igneous provinces; geochronological and geochemical studies of the North Atlantic volcanic province and the Caribbean oceanic plateau.

BA - BOOK AUTHORS: Sinton-Christopher-W

RP - RESEARCH PROGRAM: ODP (Ocean Drilling Program)

CP - COUNTRY OF PUBLICATION: United-States

PY - PUBLICATION YEAR: 1996

DG - DEGREE GRANTED: Doctoral

DI - DEGREE GRANTING INSTITUTION: Oregon State University. Corvallis, OR, United States. Pages: 179. 1996.

LA - LANGUAGE: English

DE - DESCRIPTORS: absolute-age; anaerobic-environment; Antilles-; Ar-Ar; Arctic-region; Atlantic-Ocean; basalts-; Caribbean-region; Caribbean-Sea; Central-America; Colombia-; continental-margin; Costa-Rica; Cretaceous-; crust-; Curacao-; dates-; decompression-; dissolved-materials; extinction-; Gorgona-Island; Greater-Antilles; Greenland-; Haiti-; Hispaniola-; igneous-activity; igneous-rocks; lava-; Leg-152; Lesser-Antilles; magnetic-anomalies; mantle-; marine-environment; melting-; Mesozoic-; mid-ocean-ridge-basalts; Netherlands-Antilles; Nicoya-Peninsula; North-American-Plate; North-Atlantic; North-Atlantic-volcanic-province; Ocean-Drilling-Program; oceanic-crust; oxygen-; plate-tectonics; sea-water; South-America; South-American-Plate; upper-mantle; volcanic-rocks; volcanism-; West-Greenland; West-Indies

CC - CATEGORY CODES: 02C-Geochemistry-of-rocks,-soils,-and-sediments; 05A-Igneous-and-metamorphic-petrology

DT - DOCUMENT TYPE: Thesis-or-Dissertation

BL - BIB LEVEL: Monograph

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

AV - AVAILABILITY: University Microfilms, Ann Arbor, MI, United States

AN - ACCESSION NUMBER: 1997-037955

UD - UPDATE CODE: 199713

Registro 4723 de 5614 - GeoRef Disc 4: 1993-1996

BK - BOOK TITLE: Geochemical data from Colombia; Part C, Data.

BA - BOOK AUTHORS: Oland-Gustav-P; Orris-Greta-J

BF - BOOK AUTHOR AFFILIATION: U. S. Geological Survey, USA, United States

SO - SOURCE: Open-File Report - U. S. Geological Survey. 1996.

PB - PUBLISHER: U. S. Geological Survey. Reston, VA, United States. Pages: 3 diskettes. 1996.

RP - RESEARCH PROGRAM: USGS (Publications of the U. S. Geological Survey)

CP - COUNTRY OF PUBLICATION: United-States

PY - PUBLICATION YEAR: 1996

LA - LANGUAGE: English

DE - DESCRIPTORS: analysis-; Colombia-; data-; geochemistry-; rocks-; sediments-; South-America; USGS-

CC - CATEGORY CODES: 02A-General-geochemistry

DT - DOCUMENT TYPE: Serial; Report

BL - BIB LEVEL: Monograph

MC - MAP COORDINATES: LAT: S040000; N121500; LONG: W0670000; W0790000.

NN - ANNOTATION: Requirements: The data tables can be imported into most spreadsheet and database programs on IBM PC or compatible computers and on Macintosh computers capable of reading MS DOS diskettes..

ME - SOURCE MEDIUM: diskette

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

IS - ISSN: 0196-1497

CO - CODEN: XGROAG

RN - REPORT NUMBER: OF 96-0542-C

AV - AVAILABILITY: U. S. Geol. Surv., Denver, CO, United States

AN - ACCESSION NUMBER: 1997-045059

UD - UPDATE CODE: 199716

Registro 4724 de 5614 - GeoRef Disc 4: 1993-1996

TI - TITLE: Earthquake-induced landslides in South America.

AU - AUTHORS: Schuster-Robert-L

AF - AUTHOR AFFILIATION: U. S. Geological Survey, Denver, CO, United States

BK - BOOK TITLE: In: Geological Society of America, Cordilleran Section, 92nd annual meeting.

BA - BOOK AUTHORS: Anonymous

SO - SOURCE: Abstracts with Programs - Geological Society of America. 28; 5, Pages 110. 1996.

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

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

CP - COUNTRY OF PUBLICATION: United-States

PY - PUBLICATION YEAR: 1996

CN - CONFERENCE INFORMATION: Geological Society of America, Cordilleran Section, 92nd annual meeting. Portland, OR, United States. Apr. 22-24, 1996.

LA - LANGUAGE: English

DE - DESCRIPTORS: Andes-; avalanches-; Chile-earthquake-1960; Colombia-; Cordillera-Blanca-earthquake-1970; coseismic-processes; debris-flows; earthquakes-; Ecuador-; geologic-hazards; landslides-; mass-movements; mudflows-; northern-Peru; Paez-earthquake-1994; Peru-; Reventador-earthquakes-1987; South-America

CC - CATEGORY CODES: 23-Geomorphology

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

BL - BIB LEVEL: Analytic

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

IS - ISSN: 0016-7592

CO - CODEN: GAAPBC

AN - ACCESSION NUMBER: 1997-046601

UD - UPDATE CODE: 199716

Registro 4725 de 5614 - GeoRef Disc 4: 1993-1996

TI - TITLE: Environmental and paleoclimatic evolution in the late Pliocene-Quaternary Colombia.

AU - AUTHORS: Hooghiemstra-Henry

AF - AUTHOR AFFILIATION: University of Amsterdam, Department of Palynology and Paleoactuoecology, Amsterdam, Netherlands

BK - BOOK TITLE: In: Paleoclimate and evolution, with emphasis on human origins.

BA - BOOK AUTHORS: Vrba-Elisabeth-S (editor); Denton-George-H (editor); Partridge-Timothy-C (editor); Burckle-Lloyd-H (editor)

SO - SOURCE: Pages 249-261. 1996.

PB - PUBLISHER: Yale University Press. New Haven, CT, United States. 1996.

RP - RESEARCH PROGRAM: ODP (Ocean Drilling Program)

CP - COUNTRY OF PUBLICATION: United-States

PY - PUBLICATION YEAR: 1996

CN - CONFERENCE INFORMATION: Symposium on Paleoclimate and evolution. Airlie, VA, United States. May 1993.

LA - LANGUAGE: English

DE - DESCRIPTORS: Amazon-Basin; Andes-; biomes-; biostratigraphy-; biota-; Cenozoic-; Colombia-; Eastern-Cordillera; Equatorial-Pacific; isotope-ratios; isotopes-; Leg-111; microfossils-; miospores-; Neogene-; O-18-O-16; Ocean-Drilling-Program; ODP-Site-677; oxygen-; Pacific-Ocean; paleoclimatology-; paleoenvironment-; palynomorphs-; Pliocene-; pollen-; Quaternary-; Sabana-de-Bogota; South-America; stable-isotopes; Tertiary-; upper-Pliocene; vegetation-

CC - CATEGORY CODES: 12-Stratigraphy

DT - DOCUMENT TYPE: Book; Conference-Document

BL - BIB LEVEL: Analytic

IL - ILLUSTRATION: Refs: 28; illus. incl. sects.

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

IB - ISBN: 0-300-06348-2

AN - ACCESSION NUMBER: 1997-047305

UD - UPDATE CODE: 199716

Registro 4726 de 5614 - GeoRef Disc 4: 1993-1996

TI - TITLE: High-resolution fluvial seismic stratigraphy; an integrated subsurface analysis, Middle Magdalena Basin, Colombia.

AU - AUTHORS: Olaya-Ivan-D; McDonough-Katie-Joe; Hale-Laura-D; Anderson-Donna-S; Cross-Timothy-A

AF - AUTHOR AFFILIATION: Colorado School of Mines, Department of Geology and Geological Engineering, Golden, CO, United States

BK - BOOK TITLE: In: Geological Society of America, 28th annual meeting.

BA - BOOK AUTHORS: Anonymous

SO - SOURCE: Abstracts with Programs - Geological Society of America. 28; 7, Pages 523. 1996.

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

CP - COUNTRY OF PUBLICATION: United-States

PY - PUBLICATION YEAR: 1996

CN - CONFERENCE INFORMATION: Geological Society of America, 28th annual meeting. Denver, CO, United States. Oct. 28-31, 1996.

LA - LANGUAGE: English

AB - ABSTRACT: Approximately 300 m of fluvial channel, crevasse-splay, floodplain and lake sediments accumulated in the Middle Magdalena basin of central Colombia from early Paleocene to late Miocene. Core and well-log studies show that these strata are packaged in 70 to 250 m-thick cyclic alternations of channel and crevasse-dominated to floodplain and lake- dominated successions reflecting regular variations in regionally changing A/S (accommodation-to-sediment supply) ratio.Seismic reflection profiles show a similar alternation of seismic facies at lower vertical resolution than well logs. Seven seismic facies calibrated with sedimentary facies are defined by geometric configuration (e.g., shingled, concave-down, mounded) and reflection character (e.g., high/low lateral continuity and high/low reflection amplitude). Within seismic facies packages, systematic changes in clinoform geometries depict the evolution of landforms that occur in long-term stratigraphic cycles. Mapping seismic facies reveals approximate sedimentologic facies distributions within six intervals.Our seismic interpretation method integrates the strengths and minimizes inherent weaknesses of data types. Well-log data provide high vertical resolution; seismic data provide low vertical but high lateral resolution. A critical part of the method predicts seismic character (geometric configurations and reflection attributes) from the facies tracts and stratigraphic architecture interpreted from well logs. Also, ties between data types emphasize stratigraphic intervals rather than bounding surfaces.

DE - DESCRIPTORS: amplitude-; calibration-; Colombia-; cores-; cycles-; elastic-waves; fluvial-environment; geometry-; geophysical-profiles; high-resolution-methods; interpretation-; Middle-Magdalena-Basin; sediment-supply; sediments-; seismic-profiles; seismic-stratigraphy; South-America; thickness-; well-logs

CC - CATEGORY CODES: 12-Stratigraphy

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

BL - BIB LEVEL: Analytic

RF - REFERENCE SOURCE: GeoRef, Copyright 2000, American Geological Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States

IS - ISSN: 0016-7592

CO - CODEN: GAAPBC

AN - ACCESSION NUMBER: 1997-048128

UD - UPDATE CODE: 199716

Registro 4727 de 5614 - GeoRef Disc 4: 1993-1996

TI - TITLE: Comparison of Permian brachiopod paleobiogeographic patterns for North and South America.

AU - AUTHORS: Hanger-Rex-Alan

AF - AUTHOR AFFILIATION: George Washington University, Department of Geology, Washington, DC, United States

BK - BOOK TITLE: In: Geological Society of America, 28th annual meeting.

BA - BOOK AUTHORS: Anonymous

SO - SOURCE: Abstracts with Programs - Geological Society of America. 28; 7, Pages 366. 1996.


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