No. Registros Solicitud 1 5614 colombia



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DE - DESCRIPTORS: aquatic-environment; Boyaca-Colombia; C-13-C-12; carbon-; Cenozoic-; Chipaque-Formation; clastic-rocks; Colombia-; Cretaceous-; Cundinamarca-Colombia; depositional-environment; Fomeque-Formation; Guadas-Formation; isotope-ratios; isotopes-; K-T-boundary; Las-Juntas-Formation; lower-Paleocene; Mesozoic-; mudstone-; organic-carbon; organic-compounds; organic-materials; Paleocene-; paleoclimatology-; Paleogene-; sedimentary-rocks; siltstone-; South-America; stable-isotopes; stratigraphic-boundary; terrestrial-environment; Tertiary-; Une-Formation; Upper-Cretaceous

CC - CATEGORY CODES: 12-Stratigraphy; 02D-Isotope-geochemistry

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

BL - BIB LEVEL: Analytic

IL - ILLUSTRATION: Refs: 1

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: 1997-066376

UD - UPDATE CODE: 199722

Registro 4738 de 5614 - GeoRef Disc 4: 1993-1996

TI - TITLE: Implications of multiple suppression for AVO analysis and CMP-stacked data.

AU - AUTHORS: Alvarez-Gabriel; Larner-Ken

AF - AUTHOR AFFILIATION: Ecopetrol-ICP, Bucaramanga, Colombia

BK - BOOK TITLE: In: Society of Exploration Geophysicists, 66th annual international meeting; technical program, expanded abstracts with authors' biographies.

BA - BOOK AUTHORS: Anonymous

SO - SOURCE: SEG Annual Meeting Expanded Technical Program Abstracts with Biographies. 66; Pages 1518-1521. 1996.

NT - NOTES: Volume II

PB - PUBLISHER: Society of Exploration Geophysicists. Tulsa, OK, United States. 1996.

CP - COUNTRY OF PUBLICATION: United-States

PY - PUBLICATION YEAR: 1996

CN - CONFERENCE INFORMATION: Society of Exploration Geophysicists, 66th annual international meeting. Denver, CO, United States. Nov. 10-15, 1996.

LA - LANGUAGE: English

DE - DESCRIPTORS: AVO-methods; common-depth-point-method; geophysical-methods; multiples-; reflection-methods; seismic-methods; stacking-

CC - CATEGORY CODES: 20-Applied-geophysics

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

BL - BIB LEVEL: Analytic

IL - ILLUSTRATION: Refs: 5; illus. incl. 1 table, sect.

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

IS - ISSN: 1052-3812

AN - ACCESSION NUMBER: 1997-070123

UD - UPDATE CODE: 199723

Registro 4739 de 5614 - GeoRef Disc 4: 1993-1996

BK - BOOK TITLE: Source process of complex earthquakes by time-dependent moment tensor analysis.

BA - BOOK AUTHORS: Wu-Jun

CP - COUNTRY OF PUBLICATION: United-States

PY - PUBLICATION YEAR: 1996

DG - DEGREE GRANTED: Doctoral

DI - DEGREE GRANTING INSTITUTION: University of Arizona. Tucson, AZ, United States. Pages: 104. 1996.

LA - LANGUAGE: English

DE - DESCRIPTORS: body-waves; Colombia-; compression-; dip-; dip-slip-faults; earthquakes-; elastic-waves; faults-; focal-mechanism; geographic-information-systems; geometry-; information-systems; inverse-problem; moment-tensors; Murindo-fault-system; northwestern-Colombia; P-waves; rupture-; seismic-moment; seismic-sources; seismic-waves; seismotectonics-; South-America; stress-; tectonics-; teleseismic-signals; thickness-

CC - CATEGORY CODES: 19-Seismology

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: 1997-071664

UD - UPDATE CODE: 199723

Registro 4740 de 5614 - GeoRef Disc 4: 1993-1996

TI - TITLE: PIXE et traces de fission; une approche des reseaux d'echanges de l'obsidienne dans l'aire andine prehispanique (Colombie, Equateur)

Translated Title: Obsidian circulation in the air during pre-Hispanic times in the Andes of Colombia and Ecuador; a coupled PIXE/ fission-track dating approach.

AU - AUTHORS: Poupeau-G; Bellot-Gurlet-L; Dorighel-O; Calligaro-T; Dran-J-C; Salomon-J

SO - SOURCE: Comptes Rendus de l'Academie des Sciences, Serie II. Sciences de la Terre et des Planetes. 323; 5, Pages 443-450. 1996.

PB - PUBLISHER: Gauthier-Villars. Montrouge, France. 1996.

CP - COUNTRY OF PUBLICATION: France

PY - PUBLICATION YEAR: 1996

LA - LANGUAGE: French

LS - LANGUAGE OF SUMMARY: English

AB - ABSTRACT: We analysed by PIXE the chemical composition of 50 obsidian artifacts from Colombian and Ecuadorian archaeological coastal sites of the prehispanic period, and 21 samples from natural outcrops and dated 16 of these samples by the fission track method. Geochemical/age characterization of obsidian artefacts show they come from five sources, of which three are unknown. The combination of PIXE and fission track dating can refine the grouping of samples into homogeneous clans for sourcing studies.

DE - DESCRIPTORS: Andes-; archaeology-; artifacts-; atmosphere-; Cenozoic-; chemical-composition; Colombia-; Ecuador-; fission-track-dating; geochronology-; glasses-; Holocene-; igneous-rocks; obsidian-; provenance-; Quaternary-; South-America; upper-Holocene; volcanic-rocks; wind-transport

CC - CATEGORY CODES: 24-Quaternary-geology

DT - DOCUMENT TYPE: Serial

BL - BIB LEVEL: Analytic

IL - ILLUSTRATION: Refs: 21

RF - REFERENCE SOURCE: GeoRef, Copyright 2000, American Geological Institute. Reference includes data from PASCAL, Institute de l'Information Scientifique et Technique, Vandoeuvre-les-Nancy, France

IS - ISSN: 1251-8050

AN - ACCESSION NUMBER: 1997-073496

UD - UPDATE CODE: 199724

Registro 4741 de 5614 - GeoRef Disc 4: 1993-1996

TI - TITLE: Three-dimensional geometry and axial-plane mapping of a fault-bend fold; the Medina Anticline, Eastern Cordillera, Colombia.

AU - AUTHORS: Rowan-Mark-G; Linares-Roberto

AF - AUTHOR AFFILIATION: University of Colorado, Department of Geological Sciences, Boulder, 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 240. 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

DE - DESCRIPTORS: amplitude-; Andes-; Cenozoic-; Colombia-; displacements-; Eastern-Cordillera; elastic-waves; faults-; folds-; geometry-; geophysical-methods; geophysical-profiles; geophysical-surveys; hanging-wall; Llanos-; mapping-; Medina-Anticline; models-; Neogene-; normal-faults; patterns-; seismic-methods; seismic-profiles; seismic-waves; South-America; strike-; surveys-; Tertiary-; three-dimensional-models; thrust-faults

CC - CATEGORY CODES: 16-Structural-geology

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: 1997-075006

UD - UPDATE CODE: 199724

Registro 4742 de 5614 - GeoRef Disc 4: 1993-1996

TI - TITLE: Geochemical evidence for sub-Milankovitch climate change during the Pleistocene in Equatorial South America.

AU - AUTHORS: Mora-German; Pratt-Lisa-M

AF - AUTHOR AFFILIATION: Indiana University, Department of Geological Sciences, Bloomington, IN, 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 505. 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

DE - DESCRIPTORS: algae-; basins-; biochemistry-; C-13-C-12; carbon-; Cenozoic-; changes-; Colombia-; cores-; cycles-; gas-chromatograms; geochemistry-; glacial-environment; interglacial-environment; intermontane-basins; interpretation-; isotope-ratios; isotopes-; kerogen-; lacustrine-environment; mass-spectra; microfossils-; Milankovitch-theory; organic-carbon; organic-compounds; organic-materials; paleoclimatology-; Plantae-; Pleistocene-; pyrolysis-; Quaternary-; Sabana-de-Bogata-Basin; South-America; spectra-; stable-isotopes; sulfur-; terrestrial-environment; variations-

CC - CATEGORY CODES: 24-Quaternary-geology

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: 1997-075019

UD - UPDATE CODE: 199724

Registro 4743 de 5614 - GeoRef Disc 4: 1993-1996

TI - TITLE: Structural characteristics of Apure area, Barinas-Apure Basin.

AU - AUTHORS: Portilla-Adolfo

AF - AUTHOR AFFILIATION: Corpoven, Gerencia de Geologia, Puerto La Cruz, Venezuela

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 248. 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

DE - DESCRIPTORS: Andes-; Apure-Venezuela; Barinas-Apure-Basin; Cenozoic-; Colombia-; Cretaceous-; folds-; Merida-Andes; Mesozoic-; migration-; Miocene-; Nazca-Plate; Neogene-; oil-seeps; petroleum-; plate-collision; plate-tectonics; Pleistocene-; Pliocene-; Quaternary-; seismotectonics-; sequence-stratigraphy; South-America; South-American-Plate; synclines-; tectonics-; Tertiary-; uplifts-; Upper-Cretaceous; Venezuela-

CC - CATEGORY CODES: 16-Structural-geology; 29A-Economic-geology,-geology-of-energy-sources

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: 1997-075171

UD - UPDATE CODE: 199724

Registro 4744 de 5614 - GeoRef Disc 4: 1993-1996

TI - TITLE: Warming at 18,000 yr B.P. in the tropical Andes.

AU - AUTHORS: Helmens-Karin-F; Kuhry-Peter; Rutter-Nathaniel-W; van-der-Borg-Klaas; de-Jong-Arie-F-M

AF - AUTHOR AFFILIATION: University of Lethbridge, Department of Geography, Lethbridge, AB, Canada

SO - SOURCE: Quaternary Research (New York). 45; 3, Pages 289-299. 1996.

PB - PUBLISHER: Academic Press. New York, NY, United States. 1996.

CP - COUNTRY OF PUBLICATION: United-States

PY - PUBLICATION YEAR: 1996

LA - LANGUAGE: English

DE - DESCRIPTORS: Andes-; Bogota-Colombia; Cenozoic-; Colombia-; Eastern-Cordillera; La-Laguna-Depression; paleoclimatology-; paleoecology-; paleotemperature-; palynomorphs-; Pleistocene-; Quaternary-; South-America; tropical-environment; upper-Pleistocene

CC - CATEGORY CODES: 24-Quaternary-geology

DT - DOCUMENT TYPE: Serial

BL - BIB LEVEL: Analytic

MC - MAP COORDINATES: LAT: N045500; N045500; LONG: W0742000; W0742000.

IL - ILLUSTRATION: Refs: 32; illus. incl. 3 tables, sketch maps.

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

IS - ISSN: 0033-5894

CO - CODEN: QRESAV

AN - ACCESSION NUMBER: 1998-004747

UD - UPDATE CODE: 199802

Registro 4745 de 5614 - GeoRef Disc 4: 1993-1996

TI - TITLE: The prediction of rainfall-triggered soil slips in Manizales (Colombia).

AU - AUTHORS: Terlien-M-T-J

AF - AUTHOR AFFILIATION: International Institute for Aerospace Survey and Earth Sciences (ITC), Delft, Netherlands

BK - BOOK TITLE: In: Proceedings of the Eighth international conference and field trip on landslides.

BA - BOOK AUTHORS: Chacon-Jose (editor); Irigaray-Clemente (editor); Fernandez-Tomas (editor)

SO - SOURCE: Proceedings of the International Symposium on Landslides = Comptes Rendus du Symposium International sur les Glissements de Terrain. 8; Pages 197-205. 1996.

PB - PUBLISHER: A.A. Balkema. Rotterdam, Netherlands. 1996.

CP - COUNTRY OF PUBLICATION: Netherlands

PY - PUBLICATION YEAR: 1996

CN - CONFERENCE INFORMATION: Eighth international conference and field trip on landslides. Granada City, Spain. Sept. 27-28, 1996.

LA - LANGUAGE: English

DE - DESCRIPTORS: Colombia-; failures-; finite-element-analysis; landslides-; Manizales-Colombia; mass-movements; models-; Monte-Carlo-analysis; pore-pressure; prediction-; pressuremeters-; rainfall-; slope-stability; soil-mechanics; South-America; spatial-distribution; spatial-variations; statistical-analysis; tensiometers-

CC - CATEGORY CODES: 30-Engineering-geology

DT - DOCUMENT TYPE: Serial; Conference-Document

BL - BIB LEVEL: Analytic

IL - ILLUSTRATION: Refs: 14; illus. incl. 2 tables.

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

IB - ISBN: 90-5410-832-0

CO - CODEN: #02939

AN - ACCESSION NUMBER: 1998-004864

UD - UPDATE CODE: 199802

Registro 4746 de 5614 - GeoRef Disc 4: 1993-1996

TI - TITLE: Impact of 3-D seismic interpretation on reservoir management in the Apiay-Ariari oil fields, Llanos Basin, Colombia.

AU - AUTHORS: Gutierrez-Mario; Lozano-Eduardo; Sroczynski-Michael

AF - AUTHOR AFFILIATION: ECOPETROL, Reservoir Division, Bogota, Colombia

BK - BOOK TITLE: In: Applications of 3-D seismic data to exploration and production.

BA - BOOK AUTHORS: Weimer-Paul (editor); Davis-Thomas-L (editor)

SO - SOURCE: AAPG Studies in Geology. 42; Pages 57-68. 1996.

NT - NOTES: Soc. of Explor. Geophys., Geophys. Dev. Series, No. 5

PB - PUBLISHER: American Association of Petroleum Geologists. Tulsa, OK, United States. 1996.

CP - COUNTRY OF PUBLICATION: United-States

PY - PUBLICATION YEAR: 1996

LA - LANGUAGE: English

DE - DESCRIPTORS: Apiay-Field; Ariari-Field; Cenozoic-; Colombia-; cores-; development-; Eocene-; faults-; folds-; geometry-; geophysical-methods; geophysical-profiles; geophysical-surveys; interpretation-; Libertad-Field; Llanos-; normal-faults; oil-and-gas-fields; Oligocene-; Paleogene-; petroleum-; production-; Reforma-Field; reserves-; reservoir-rocks; reverse-faults; seismic-methods; seismic-profiles; seismograms-; shear-; South-America; strain-; strike-slip-faults; structural-traps; Suria-Field; surveys-; synthetic-seismograms; Tertiary-; three-dimensional-models; traps-; two-dimensional-models; upper-Eocene; wells-

CC - CATEGORY CODES: 29A-Economic-geology,-geology-of-energy-sources; 20-Applied-geophysics

DT - DOCUMENT TYPE: Serial

BL - BIB LEVEL: Analytic

MC - MAP COORDINATES: LAT: N033000; N040000; LONG: W0730000; W0734500.

IL - ILLUSTRATION: Refs: 6; illus. incl. sects., strat. col., 3 tables, sketch maps.

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

IS - ISSN: 0271-8510

IB - ISBN: 0-89181-050-1

AN - ACCESSION NUMBER: 1998-007798

UD - UPDATE CODE: 199803

Registro 4747 de 5614 - GeoRef Disc 4: 1993-1996

TI - TITLE: Paleoenvironmental changes and glacial stades of the last 50,000 years in the Cordillera Central, Colombia.

AU - AUTHORS: Thouret-Jean-Claude; van-der-Hammen-Thomas; Salomons-Barry; Juvigne-Etienne

AF - AUTHOR AFFILIATION: Universite Blaise Pascal, Clermont-Ferrand, France

SO - SOURCE: Quaternary Research (New York). 46; 1, Pages 1-18. 1996.

PB - PUBLISHER: Academic Press. New York, NY, United States. 1996.

CP - COUNTRY OF PUBLICATION: United-States

PY - PUBLICATION YEAR: 1996

LA - LANGUAGE: English

DE - DESCRIPTORS: Cenozoic-; Central-Cordillera; Colombia-; glacial-geology; glaciers-; Holocene-; ice-caps; last-glacial-maximum; moraines-; Nevado-del-Ruiz; paleoenvironment-; Pleistocene-; Quaternary-; South-America; Tolima-Colombia; upper-Pleistocene

CC - CATEGORY CODES: 24-Quaternary-geology

DT - DOCUMENT TYPE: Serial

BL - BIB LEVEL: Analytic

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

IL - ILLUSTRATION: Refs: 32; illus. incl. strat. cols., 2 tables, geol. sketch map.

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

IS - ISSN: 0033-5894

CO - CODEN: QRESAV

AN - ACCESSION NUMBER: 1998-009875

UD - UPDATE CODE: 199804

Registro 4748 de 5614 - GeoRef Disc 4: 1993-1996

TI - TITLE: Influence of global anoxic events on the sedimentation of Upper Cretaceous black shales in northwestern South America.

AU - AUTHORS: Mann-Ute

AF - AUTHOR AFFILIATION: Alfred Wegener Institute for Polar and Marine Research, Bremerhaven, Federal Republic of Germany

BK - BOOK TITLE: In: AGU 1996 fall meeting.

BA - BOOK AUTHORS: Anonymous

SO - SOURCE: Eos, Transactions, American Geophysical Union. 77; 46, Suppl., Pages 287. 1996.

PB - PUBLISHER: American Geophysical Union. Washington, DC, United States. 1996.

CP - COUNTRY OF PUBLICATION: United-States

PY - PUBLICATION YEAR: 1996

CN - CONFERENCE INFORMATION: American Geophysical Union 1996 fall meeting. San Francisco, CA, United States. Dec. 15-19, 1996.

LA - LANGUAGE: English

DE - DESCRIPTORS: anaerobic-environment; black-shale; clastic-rocks; Colombia-; Cretaceous-; depositional-environment; epicontinental-seas; global-; Magdalena-River; marine-environment; Mesozoic-; organic-compounds; paleo-oceanography; paleoenvironment-; sedimentary-rocks; South-America; Upper-Cretaceous

CC - CATEGORY CODES: 12-Stratigraphy; 06A-Sedimentary-petrology

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

BL - BIB LEVEL: Analytic

IL - ILLUSTRATION: Refs: 1

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

IS - ISSN: 0096-3941

CO - CODEN: EOSTAJ

AN - ACCESSION NUMBER: 1998-011532

UD - UPDATE CODE: 199805

Registro 4749 de 5614 - GeoRef Disc 4: 1993-1996

TI - TITLE: The eruptive history of Cumbal Volcano, a lava-flow-dominated stratovolcano, southern Colombia.

AU - AUTHORS: Gorman-Caitlin-E; Williams-Stanley-N

AF - AUTHOR AFFILIATION: Arizona State University, Department of Geology, Tempe, AZ, 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 503. 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

DE - DESCRIPTORS: Andes-; avalanches-; bedding-plane-irregularities; Colombia-; Cumbal-; debris-flows; eruptions-; failures-; foliation-; fumaroles-; igneous-rocks; landslides-; lava-flows; mass-movements; pyroclastics-; Romeral-shear-zone; sedimentary-structures; South-America; southern-Colombia; stratovolcanoes-; striations-; volcanic-rocks; volcanoes-

CC - CATEGORY CODES: 24-Quaternary-geology

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: 1998-014780

UD - UPDATE CODE: 199806

Registro 4750 de 5614 - GeoRef Disc 4: 1993-1996

TI - TITLE: Analysis of the South American fossil pollen record of Mimosoideae (Leguminosae).

AU - AUTHORS: Caccavari-Marta-A

AF - AUTHOR AFFILIATION: Museo Argentino de Ciencias Naturales "B. Rivadavia", Buenos Aires, Buenos Aires, Argentina

SO - SOURCE: Review of Palaeobotany and Palynology. 94; 1-2, Pages 123-135. 1996.

PB - PUBLISHER: Elsevier. Amsterdam, Netherlands. 1996.

CP - COUNTRY OF PUBLICATION: Netherlands

PY - PUBLICATION YEAR: 1996

LA - LANGUAGE: English

AB - ABSTRACT: A re-evaluation of published reports of palynomorphs that have been recognized or assigned to the Mimosoideae (Leguminosae) is presented. Botanical affinities for the palynomorphs are proposed and the affinities of Retitricolpites medius (Eocene of Colombia) and Triporotetradites gemmatus (Upper Cretaceous of Brazil) are discussed. If the latter palynomorph is a Mimosa it would be the oldest of the subfamily. If the porate condition is derived, T. gemmatus suggests an even older origin for the Mimosoideae. The morphological and systematic diversity of South American mimosoid palynomorphs from Upper Cretaceous and younger strata, is compared to that of other geographic areas. The palynological record demonstrates that both tropical America and Africa were important in the early history of the Mimosoideae. Based on the new data an evolutionary interpretation is presented.

DE - DESCRIPTORS: Angiospermae-; Brazil-; Cenozoic-; Colombia-; Cretaceous-; Dicotyledoneae-; Eocene-; Leguminosae-; Mesozoic-; Mimosoidae-; miospores-; Paleogene-; palynomorphs-; Plantae-; pollen-; Retitricolpites-medius; South-America; Spermatophyta-; Tertiary-; Triporotetradites-gemmatus; Upper-Cretaceous

CC - CATEGORY CODES: 09-Paleobotany

DT - DOCUMENT TYPE: Serial

BL - BIB LEVEL: Analytic

IL - ILLUSTRATION: Refs: 51; 3 tables, 3 plates.

RF - REFERENCE SOURCE: GeoRef, Copyright 2000, American Geological Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands

IS - ISSN: 0034-6667

CO - CODEN: RPPYAX

AN - ACCESSION NUMBER: 1998-017997

UD - UPDATE CODE: 199807

Registro 4751 de 5614 - GeoRef Disc 4: 1993-1996

TI - TITLE: Surface-wave inversion of the South American lithosphere (SISAL); a first look.

AU - AUTHORS: Vdovin-O-Y; Rial-J-A; Ritzwoller-M-H; Levshin-A-L

AF - AUTHOR AFFILIATION: University of Colorado, Physics Department, Boulder, CO, United States

BK - BOOK TITLE: In: AGU 1996 fall meeting.


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