No. Registros Solicitud 1 5614 colombia
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DE - DESCRIPTORS: absolute-age; Andes-; apatite-; Ar-Ar; basins-; Cenozoic-; Central-Cordillera; chronostratigraphy-; clastic-rocks; Colombia-; Cretaceous-; dates-; Eastern-Cordillera; exhumation-; fission-track-dating; fold-and-thrust-belts; lithostratigraphy-; Maestrichtian-; Magdalena-Valley; Mesozoic-; Middle-Magdalena-Valley-Basin; neotectonics-; nesosilicates-; orogeny-; orthosilicates-; paleogeography-; phosphates-; sedimentary-basins; sedimentary-rocks; sedimentary-structures; Senonian-; silicates-; South-America; syntectonic-processes; tectonics-; tephrochronology-; thermal-history; thermochronology-; unconformities-; uplifts-; Upper-Cretaceous; zircon- CC - CATEGORY CODES: 12-Stratigraphy; 16-Structural-geology DT - DOCUMENT TYPE: Serial BL - BIB LEVEL: Analytic MC - MAP COORDINATES: LAT: N040000; N051500; LONG: W0743000; W0753000. NN - ANNOTATION: With GSA Data Repository Item 2003029. IL - ILLUSTRATION: Refs: 43; illus. incl. sects., 2 tables, geol. sketch maps. RF - REFERENCE SOURCE: GeoRef, Copyright 2003, American Geological Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States IS - ISSN: 0016-7606 CO - CODEN: BUGMAF AN - ACCESSION NUMBER: 2003-020655 UD - UPDATE CODE: 200307 Registro 471 de 5614 - GeoRef : 2002-2004/12 TI - TITLE: Magmatic response to early aseismic ridge subduction; the Ecuadorian margin case (South America). AU - AUTHORS: Bourdon-Erwan; Eissen-Jean-Philippe; Gutscher-Marc-Andre; Monzier-Michel; Hall-Minard-L; Cotten-Joseph AF - AUTHOR AFFILIATION: Institut de Recherche pour le Developpement, Quito, Ecuador SO - SOURCE: Earth and Planetary Science Letters. 205; 3-4, Pages 123-138. 2003. PB - PUBLISHER: Elsevier. Amsterdam, Netherlands. 2003. CP - COUNTRY OF PUBLICATION: Netherlands PY - PUBLICATION YEAR: 2003 LA - LANGUAGE: English AB - ABSTRACT: A geochemical and isotopic study of lavas from Pichincha, Antisana and Sumaco volcanoes in the Northern Volcanic Zone (NVZ) in Ecuador shows their magma genesis to be strongly influenced by slab melts. Pichincha lavas (in fore arc position) display all the characteristics of adakites (or slab melts) and were found in association with magnesian andesites. In the main arc, adakite-like lavas from Antisana volcano could be produced by the destabilization of pargasite in a garnet-rich mantle. In the back arc, high-niobium basalts found at Sumaco volcano could be produced in a phlogopite-rich mantle. The strikingly homogeneous isotopic signatures of all the lavas suggest that continental crust assimilation is limited and confirm that magmas from the three volcanic centers are closely related. The following magma genesis model is proposed in the NVZ in Ecuador: in fore arc position beneath Pichincha volcano, oceanic crust is able to melt and produces adakites. En route to the surface, part of these magmas metasomatize the mantle wedge inducing the crystallization of pargasite, phlogopite and garnet. In counterpart, they are enriched in magnesium and are placed at the surface as magnesian andesites. Dragged down by convection, the modified mantle undergoes a first partial melting event by the destabilization of pargasite and produces the adakite-like lavas from Antisana volcano. Lastly, dragged down deeper beneath the Sumaco volcano, the mantle melts a second time by the destabilization of phlogopite and produces high-niobium basalts. The obvious variation in spatial distribution (and geochemical characteristics) of the volcanism in the NVZ between Colombia and Ecuador clearly indicates that the subduction of the Carnegie Ridge beneath the Ecuadorian margin strongly influences the subduction-related volcanism. It is proposed that the flattening of the subducted slab induced by the recent subduction (<5 Ma?) of the Carnegie Ridge has permitted the progressive warming of the oceanic crust and its partial melting since ca. 1.5 Ma. Since then, the production of adakites in fore arc position has deeply transformed the magma genesis in the overall arc changing from "typical" calc-alkaline magmatism induced by hydrous fluid metasomatism, to the space- and time-associated lithology adakite/high-Mg andesite/adakite-like andesite/high-Nb basalts characteristic of slab melt metasomatism. DE - DESCRIPTORS: adakites-; alkaline-earth-metals; Antisana-; aseismic-ridges; Cenozoic-; continental-margin; convection-; crust-; Ecuador-; geochemistry-; geodynamics-; igneous-rocks; isotope-ratios; isotopes-; lava-; lead-; magmas-; mantle-; mantle-wedges; melts-; metals-; metasomatism-; Nd-144-Nd-143; neodymium-; Northern-Volcanic-Zone; oceanic-crust; partial-melting; Pb-206-Pb-204; Pb-207-Pb-204; Pb-208-Pb-204; Pichincha-; plate-convergence; plate-tectonics; radioactive-isotopes; rare-earths; slabs-; South-America; Sr-87-Sr-86; stable-isotopes; strontium-; subduction-; Sumaco-; trace-elements; upper-Cenozoic; volcanic-rocks; volcanism-; volcanoes- CC - CATEGORY CODES: 02D-Isotope-geochemistry; 18-Solid-earth-geophysics DT - DOCUMENT TYPE: Serial BL - BIB LEVEL: Analytic IL - ILLUSTRATION: Refs: 52; illus. incl. 2 tables, sketch maps. RF - REFERENCE SOURCE: GeoRef, Copyright 2003, American Geological Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands IS - ISSN: 0012-821X CO - CODEN: EPSLA2 AN - ACCESSION NUMBER: 2003-020579 UD - UPDATE CODE: 200307 Registro 472 de 5614 - GeoRef : 2002-2004/12 TI - TITLE: Pervasive mantle plume head heterogeneity; evidence from the Late Cretaceous Caribbean-Colombian oceanic plateau. AU - AUTHORS: Kerr-Andrew-C; Tarney-John; Kempton-Pamela-D; Spadea-Piera; Nivia-Alvaro; Marriner-Giselle-F; Duncan-Robert-A AF - AUTHOR AFFILIATION: Cardiff University, Department of Earth Sciences, Cardiff, United Kingdom SO - SOURCE: Journal of Geophysical Research, B, Solid Earth and Planets. 107; 7, 2002. PB - PUBLISHER: American Geophysical Union. Washington, DC, United States. Pages: 13. 2002. RP - RESEARCH PROGRAM: DSDP (Deep Sea Drilling Project) CP - COUNTRY OF PUBLICATION: United-States PY - PUBLICATION YEAR: 2002 LA - LANGUAGE: English DE - DESCRIPTORS: absolute-age; Ar-Ar; basalts-; Caribbean-Plate; Caribbean-region; Caribbean-Colombian-Plateau; Central-Cordillera; Colombia-; Colombian-Basin; Cretaceous-; Deep-Sea-Drilling-Project; heterogeneity-; igneous-rocks; isotope-ratios; isotopes-; La-Nd; lava-; Leg-15; mantle-; mantle-plumes; Mesozoic-; metals-; mid-ocean-ridge-basalts; Nd-144-Nd-143; neodymium-; oceanic-plateaus; partial-melting; picrite-; pillow-lava; plate-tectonics; rare-earths; South-America; stable-isotopes; Upper-Cretaceous; volcanic-rocks CC - CATEGORY CODES: 18-Solid-earth-geophysics DT - DOCUMENT TYPE: Serial BL - BIB LEVEL: Analytic IL - ILLUSTRATION: Refs: 50; illus. incl. geol. sketch map, 3 tables, strat. col. RF - REFERENCE SOURCE: GeoRef, Copyright 2003, American Geological Institute. IS - ISSN: 0885-3401 AN - ACCESSION NUMBER: 2003-020440 UD - UPDATE CODE: 200307 Registro 473 de 5614 - GeoRef : 2002-2004/12 TI - TITLE: Regional tomography of aspherical upper mantle structures beneath the Caribbean Plate. AU - AUTHORS: White-A-P; Karason-H; van-der-Hilst-R AF - AUTHOR AFFILIATION: Massachusetts Institute of Technology, Department of Earth, Atmospheric, and Planetary Sciences, Cambridge, MA, United States BK - BOOK TITLE: In: AGU 1998 spring meeting. BA - BOOK AUTHORS: Anonymous SO - SOURCE: Eos, Transactions, American Geophysical Union. 79; 17, Suppl., Pages 333. 1998. PB - PUBLISHER: American Geophysical Union. Washington, DC, United States. 1998. CP - COUNTRY OF PUBLICATION: United-States PY - PUBLICATION YEAR: 1998 CN - CONFERENCE INFORMATION: American Geophysical Union 1998 spring meeting. Boston, MA, United States. May 26-29, 1998. LA - LANGUAGE: English DE - DESCRIPTORS: asperities-; body-waves; Bucaramanga-Colombia; Caribbean-Plate; Caribbean-region; Colombia-; data-processing; earthquakes-; elastic-waves; inverse-problem; Lesser-Antilles-Trench; mantle-; Maracaibo-Basin; plate-tectonics; PP-waves; seismic-waves; slabs-; South-America; subduction-; tomography-; upper-mantle; Venezuela- CC - CATEGORY CODES: 18-Solid-earth-geophysics DT - DOCUMENT TYPE: Abstract; Serial; Conference-Document BL - BIB LEVEL: Analytic RF - REFERENCE SOURCE: GeoRef, Copyright 2003, American Geological Institute. IS - ISSN: 0096-3941 CO - CODEN: EOSTAJ AN - ACCESSION NUMBER: 2003-019968 UD - UPDATE CODE: 200307 Registro 474 de 5614 - GeoRef : 2002-2004/12 BK - BOOK TITLE: Estratigrafia, palinologia y paleoecologia de la Formacion Guaduas (Maastrichtiano-Paleoceno, Colombia) Translated Title: Stratigraphy, palynology and paleoecology of the Guadas Formation; Maestrichtian-Paleocene, Colombia. BA - BOOK AUTHORS: Sarmiento-Perez-Gustavo SO - SOURCE: Publicaciones Geologicas Especiales del INGEOMINAS. 20; 1994. PB - PUBLISHER: Instituto Nacional de Investigaciones Geologico-Mineras (INGEOMINAS). Bogota, Colombia. Pages: 192. 1994. CP - COUNTRY OF PUBLICATION: Colombia PY - PUBLICATION YEAR: 1994 DG - DEGREE GRANTED: Doctoral DI - DEGREE GRANTING INSTITUTION: Universiteit van Amsterdam. Amsterdam, Netherlands. LA - LANGUAGE: Spanish LS - LANGUAGE OF SUMMARY: English; Dutch DE - DESCRIPTORS: Andes-; biostratigraphy-; biozones-; Cenozoic-; Colombia-; Cretaceous-; depositional-environment; Eastern-Cordillera; Guadas-Formation; lithofacies-; Maestrichtian-; Mesozoic-; miospores-; Paleocene-; paleoecology-; Paleogene-; palynomorphs-; pollen-; pollen-analysis; Senonian-; South-America; stratigraphic-units; Tertiary-; Upper-Cretaceous CC - CATEGORY CODES: 12-Stratigraphy DT - DOCUMENT TYPE: Serial; Thesis-or-Dissertation BL - BIB LEVEL: Monograph IL - ILLUSTRATION: illus. incl. tables, sects., strat. cols., 14 plates, sketch maps. RF - REFERENCE SOURCE: GeoRef, Copyright 2003, American Geological Institute. IS - ISSN: 0120-078X CO - CODEN: #54756 AN - ACCESSION NUMBER: 2003-019801 UD - UPDATE CODE: 200307 Registro 475 de 5614 - GeoRef : 2002-2004/12 TI - TITLE: Implications of local soil knowledge for integrated soil management in Latin America. AU - AUTHORS: Barrios-E; Trejo-M-T AF - AUTHOR AFFILIATION: Centro Internacional de Agricultura Tropical, Cali, Colombia BK - BOOK TITLE: In: Ethnopedology. BA - BOOK AUTHORS: WinklerPrins-Antoinette-M-G-A (editor); Sandor-Jonathan-A (editor) SO - SOURCE: Geoderma. 111; 3-4, Pages 217-231. 2003. PB - PUBLISHER: Elsevier. Amsterdam, Netherlands. 2003. CP - COUNTRY OF PUBLICATION: Netherlands PY - PUBLICATION YEAR: 2003 LA - LANGUAGE: English AB - ABSTRACT: The increasing attention paid to local soil knowledge in recent years is the result of a greater recognition that the knowledge of people who have been interacting with their soils for long time can offer many insights about the sustainable management of tropical soils. This paper describes two approaches in the process of eliciting local information. Case studies show that there is a consistent rational basis to the use of local indicators of soil quality and their relation to improved soil management. The participatory process used is shown to have considerable potential in facilitating farmer consensus about which soil-related constraints should be tackled first. Consensus building is presented as an important step prior to collective action by farming communities in integrated soil management at the landscape scale. Taking advantage of the complementary nature of local and scientific knowledge is highlighted as an overall strategy for sustainable soil management. DE - DESCRIPTORS: case-studies; Central-America; Colombia-; Honduras-; human-activity; land-management; land-use; landscapes-; Latin-America; natural-resources; soil-knowledge; soil-management; soil-quality; soils-; South-America; sustainable-development; tropical-environment; vegetation-; Venezuela- CC - CATEGORY CODES: 25-Soils; 22-Environmental-geology DT - DOCUMENT TYPE: Serial BL - BIB LEVEL: Analytic IL - ILLUSTRATION: Refs: 26; illus. incl. 5 tables. RF - REFERENCE SOURCE: GeoRef, Copyright 2003, American Geological Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands IS - ISSN: 0016-7061 CO - CODEN: GEDMAB AN - ACCESSION NUMBER: 2003-018377 UD - UPDATE CODE: 200306 Registro 476 de 5614 - GeoRef : 2002-2004/12 TI - TITLE: Initiation and evolution of turbidity current sediment waves in the Magdalena turbidite system. AU - AUTHORS: Ercilla-Gemma; Wynn-Russell-B; Alonso-Belen; Baraza-Jesus AF - AUTHOR AFFILIATION: CSIC, Instituto de Ciencias del Mar, Barcelona, Spain BK - BOOK TITLE: In: Recognition and interpretation of deep-water sediment waves; implications for palaeoceanography, hydrocarbon exploration and flow process interpretation. BA - BOOK AUTHORS: Wynn-Russell-B (editor); Stow-Dorrik-A-V (editor) SO - SOURCE: Marine Geology. 192; 1-3, Pages 153-169. 2002. PB - PUBLISHER: Elsevier. Amsterdam, Netherlands. 2002. CP - COUNTRY OF PUBLICATION: Netherlands PY - PUBLICATION YEAR: 2002 LA - LANGUAGE: English AB - ABSTRACT: This study describes an extensive sediment-wave field in the Magdalena Turbidite System, Caribbean Sea, Colombia, which occupies an area of at least 15 000 km (super 2) on the continental slope (3330->3800 m). The waves display wavelengths up to 1.9 km, wave heights up to 18 m, and crestlines that are aligned roughly parallel to the regional bathymetric contours. Preferential deposition on the upslope wave flank has led to upslope migration, in the manner of antidunes. The Magdalena sediment waves are interpreted as forming beneath unconfined turbidity currents, which may result from the downslope evolution of slumps and mass flows. The unconfined turbidity currents are derived from several point sources along the continental slope and spread laterally as they flow downslope. This has led to the formation of a laterally extensive sediment-wave field. Simple numerical modelling estimates that the turbidity currents responsible for wave generation were near- or super-critical, with flow thickness and velocity estimated at 40-160 m, and 36-82 cm s (super -1) respectively. However, later phases of wave growth were not dependent on specific flow conditions. The most important aspect of this study is that the entire sediment-wave unit, from the basal boundary to the present-day seafloor, has been investigated using ultra high-resolution seismic profiles. The sediment-wave unit rests upon an irregular discontinuity that marks a recent change in the sedimentary regime of the Magdalena Turbidite System, from channelised to unchannelised gravity flows. Above this boundary, the sediment waves display a growth pattern characterised by an increase in wave dimensions. In addition, the wave dimensions appear to become more regular through time. However, breaks of slope in the lower bounding surface of the wave field have produced variations in wave morphology that are still visible at the present-day seafloor. This indicates that there is a close relationship between variations in slope angle and turbidity current flow characteristics, which in turn leads to variations in wave morphology. DE - DESCRIPTORS: acoustical-methods; Atlantic-Ocean; bathymetry-; bedding-plane-irregularities; bottom-features; Caribbean-Sea; Colombia-; continental-margin-sedimentation; continental-slope; currents-; geophysical-methods; geophysical-profiles; geophysical-surveys; gravity-flows; high-resolution-methods; Magdalena-Delta; marine-sediments; North-Atlantic; numerical-models; ocean-floors; sand-waves; sedimentary-structures; sedimentation-; sediments-; seismic-methods; seismic-profiles; South-America; submarine-fans; surveys-; turbidite-; turbidity-currents CC - CATEGORY CODES: 07-Oceanography; 20-Applied-geophysics DT - DOCUMENT TYPE: Serial BL - BIB LEVEL: Analytic MC - MAP COORDINATES: LAT: N110000; N130000; LONG: W0735000; W0770000. IL - ILLUSTRATION: Refs: 28; illus. incl. sects., sketch maps. RF - REFERENCE SOURCE: GeoRef, Copyright 2003, American Geological Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands IS - ISSN: 0025-3227 CO - CODEN: MAGEA6 AN - ACCESSION NUMBER: 2003-018324 UD - UPDATE CODE: 200306 Registro 477 de 5614 - GeoRef : 2002-2004/12 TI - TITLE: Heterogeneity of the Caribbean Plateau mantle source; Sr, O and He isotopic compositions of olivine and clinopyroxene from Gorgona Island. AU - AUTHORS: Revillon-S; Chauvel-C; Arndt-N-T; Pik-R; Martineau-F; Fourcade-S; Marty-B AF - AUTHOR AFFILIATION: Universite de Rennes I, Geosciences Rennes, Rennes, France SO - SOURCE: Earth and Planetary Science Letters. 205; 1-2, Pages 91-106. 2002. PB - PUBLISHER: Elsevier. Amsterdam, Netherlands. 2002. CP - COUNTRY OF PUBLICATION: Netherlands PY - PUBLICATION YEAR: 2002 LA - LANGUAGE: English AB - ABSTRACT: The composition of the mantle plumes that created large oceanic plateaus such as Ontong Java or the Caribbean is still poorly known. Geochemical and isotopic studies on accreted portions of the Caribbean plateau have shown that the plume source was heterogeneous and contained isotopically depleted and relatively enriched portions. A distinctive feature of samples from the Caribbean plateau is their unusual Sr isotopic compositions, which, at a given Nd isotopic ratio, are far higher than in samples from other oceanic plateaus. Sr, O and He isotopic compositions of whole rocks and magmatic minerals (clinopyroxene or olivine) separated from komatiites, gabbros and peridotites from Gorgona Island in Colombia were determined to investigate the origin of these anomalously radiogenic compositions. Sequentially leached clinopyroxenes have Sr isotopic compositions in the range (super 87) Sr/ (super 86) Sr = 0.70271-0.70352, systematically lower than those of leached and unleached whole rocks. Oxygen isotopic ratios of clinopyroxene vary within the range delta (super 18) O = 5.18-5.35 per mil, similar to that recorded in oceanic island basalts. He isotopic ratios are high (R/R (sub a) = 8-19). The lower (super 87) Sr/ (super 86) Sr ratios of most of the clinopyroxenes shift the field of the Caribbean plateau in Nd-Sr isotope diagrams toward more "normal" values, i.e. a position closer to the field defined by mid-ocean ridge basalts and oceanic-island basalts. Three clinopyroxenes have slightly higher (super 87) Sr/ (super 86) Sr ratios that cannot be explained by an assimilation model. The high (super 87) Sr/ (super 86) Sr and variations of (super 143) Nd/ (super 144) Nd are interpreted as a source characteristic. Trace-element ratios, however, are controlled mainly by fractionation during partial melting. We combine these isotopic data in a heterogeneous plume source model that accounts for the diversity of isotopic signatures recorded on Gorgona Island and throughout the Caribbean plateau. The heterogeneities are related to old recycled oceanic lithosphere in the plume source; the high (super 3) He/ (super 4) He ratios may indicate that the source material once resided in the lower mantle. DE - DESCRIPTORS: alkaline-earth-metals; Caribbean-Plateau; Caribbean-region; chain-silicates; clinopyroxene-; Colombia-; crust-; experimental-studies; geochemistry-; Gorgona-Island; He-4; helium-; heterogeneity-; igneous-rocks; isotope-ratios; isotopes-; large-igneous-provinces; lithosphere-; mantle-; mantle-plumes; metals-; Nd-144-Nd-143; neodymium-; noble-gases; O-18-O-16; oceanic-crust; oceanic-lithosphere; oxygen-; plateaus-; plutonic-rocks; pyroxene-group; rare-earths; silicates-; South-America; Sr-87-Sr-86; stable-isotopes; strontium-; trace-elements; volcanic-rocks; whole-rock CC - CATEGORY CODES: 02D-Isotope-geochemistry; 05A-Igneous-and-metamorphic-petrology DT - DOCUMENT TYPE: Serial BL - BIB LEVEL: Analytic MC - MAP COORDINATES: LAT: N030000; N030000; LONG: W0780000; W0783000. IL - ILLUSTRATION: Refs: 53; illus. incl. 4 tables. RF - REFERENCE SOURCE: GeoRef, Copyright 2003, American Geological Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands IS - ISSN: 0012-821X CO - CODEN: EPSLA2 AN - ACCESSION NUMBER: 2003-018160 UD - UPDATE CODE: 200306 Registro 478 de 5614 - GeoRef : 2002-2004/12 TI - TITLE: Effect of glauconite on the elastic properties, porosity, and permeability of reservoir rocks. AU - AUTHORS: Diaz-Elizabeth; Prasad-Manika; Mavko-Gary; Dvorkin-Jack AF - AUTHOR AFFILIATION: Stanford University, Stanford, CA, United States SO - SOURCE: The Leading Edge (Tulsa, OK). 22; 1, Pages 42-45. 2003. PB - PUBLISHER: Society of Exploration Geophysicists. Tulsa, OK, United States. 2003. CP - COUNTRY OF PUBLICATION: United-States PY - PUBLICATION YEAR: 2003 LA - LANGUAGE: English DE - DESCRIPTORS: Colombia-; depositional-environment; elastic-properties; geophysical-methods; geophysical-surveys; glauconite-; mica-group; permeability-; petroleum-engineering; porosity-; Putumayo-Basin; reservoir-properties; reservoir-rocks; seismic-attributes; seismic-methods; sheet-silicates; silicates-; source-rocks; South-America; surveys- CC - CATEGORY CODES: 29A-Economic-geology,-geology-of-energy-sources; 20-Applied-geophysics DT - DOCUMENT TYPE: Serial BL - BIB LEVEL: Analytic IL - ILLUSTRATION: illus. incl. 1 table, geol. sketch map. RF - REFERENCE SOURCE: GeoRef, Copyright 2003, American Geological Institute. IS - ISSN: 1070-485X CO - CODEN: #01738 AN - ACCESSION NUMBER: 2003-016888 UD - UPDATE CODE: 200306 Registro 479 de 5614 - GeoRef : 2002-2004/12 TI - TITLE: 3D crustal structure from local earthquake tomography in Nevado del Ruiz Volcano, Colombia. AU - AUTHORS: Vargas-C-A; Acevedo-A-P; Mora-H; Carvajal-C-A; Bohorquez-O-P; Gil-F AF - AUTHOR AFFILIATION: Ingeominas, Observatorio Vulcanologico y Sismologico de Manizales, Manizales, Colombia BK - BOOK TITLE: In: Seismological Society of America 2000; abstracts of the 95th annual meeting. BA - BOOK AUTHORS: Anonymous SO - SOURCE: Seismological Research Letters. 71; 2, Pages 251. 2000. PB - PUBLISHER: Seismological Society of America. El Cerrito, CA, United States. 2000. CP - COUNTRY OF PUBLICATION: United-States PY - PUBLICATION YEAR: 2000 CN - CONFERENCE INFORMATION: Seismological Society of America 2000; 95th annual meeting. San Diego, CA, United States. April 9-12, 2000. LA - LANGUAGE: English DE - DESCRIPTORS: Andes-; andesites-; Colombia-; crust-; earthquakes-; igneous-rocks; magmas-; monitoring-; Nevado-del-Ruiz; observations-; seismicity-; South-America; three-dimensional-models; tomography-; volcanic-earthquakes; volcanic-rocks; volcanism-; volcanoes- CC - CATEGORY CODES: 19-Seismology; 24-Quaternary-geology DT - DOCUMENT TYPE: Abstract; Serial; Conference-Document BL - BIB LEVEL: Analytic MC - MAP COORDINATES: LAT: N045300; N045300; LONG: W0752200; W0752200. RF - REFERENCE SOURCE: GeoRef, Copyright 2003, American Geological Institute. Yüklə 20,82 Mb. Dostları ilə paylaş:
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