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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