No. Registros Solicitud 1 5614 colombia



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TI - TITLE: Late Cretaceous upwelling and anoxic sedimentation in northwestern South America.

AU - AUTHORS: Macellari-Carlos-E; de-Vries-Thomas-John

AF - AUTHOR AFFILIATION: Univ. S.C., Earth Sci. and Resour. Inst., Columbia, SC, United States

SO - SOURCE: Palaeogeography, Palaeoclimatology, Palaeoecology. 59; 4, Pages 279-292. 1987.

PB - PUBLISHER: Elsevier. Amsterdam, Netherlands. 1987.

CP - COUNTRY OF PUBLICATION: Netherlands

PY - PUBLICATION YEAR: 1987

LA - LANGUAGE: English

DE - DESCRIPTORS: anaerobic-environment; Colombia-; Cretaceous-; environment-; Galembo-Member; Magdalena-Valley; Maracaibo-Basin; Mesozoic-; paleogeography-; sedimentary-petrology; sedimentation-; South-America; stratigraphy-; Venezuela-

CC - CATEGORY CODES: 06A-Sedimentary-petrology

DT - DOCUMENT TYPE: Serial

BL - BIB LEVEL: Analytic

IL - ILLUSTRATION: Refs: 60; illus. incl. block diag., strat. cols., geol. sketch maps.

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

IS - ISSN: 0031-0182

CO - CODEN: PPPYAB

AN - ACCESSION NUMBER: 1987-083090

UD - UPDATE CODE: 1987

Registro 4136 de 5614 - GeoRef Disc 3: 1985-1992

TI - TITLE: Helium-3 emission from Nevado del Ruiz Volcano, Colombia.

AU - AUTHORS: Williams-Stanley-N; Sano-Yuji; Wakita-Hiroshi

AF - AUTHOR AFFILIATION: La. State Univ., Dep. Geol. and Geophys., Baton Rouge, LA, United States

SO - SOURCE: Geophysical Research Letters. 14; 10, Pages 1035-1038. 1987.

PB - PUBLISHER: American Geophysical Union. Washington, DC, United States. 1987.

CP - COUNTRY OF PUBLICATION: United-States

PY - PUBLICATION YEAR: 1987

LA - LANGUAGE: English

DE - DESCRIPTORS: atmosphere-; Colombia-; degassing-; gases-; geochemistry-; geologic-hazards; He-3; He-4-He-3; helium-; hot-springs; isotopes-; lahars-; magmas-; mantle-; mass-movements; Nevado-del-Ruiz; noble-gases; South-America; springs-; stable-isotopes; thermal-waters; time-factor; volcanoes-; volcanology-; west-central-Colombia

CC - CATEGORY CODES: 02D-Isotope-geochemistry; 05A-Igneous-and-metamorphic-petrology; 30-Engineering-geology

DT - DOCUMENT TYPE: Serial

BL - BIB LEVEL: Analytic

IL - ILLUSTRATION: Refs: 15; illus. incl. 1 table, sketch map.

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

IS - ISSN: 0094-8276

CO - CODEN: GPRLAJ

AN - ACCESSION NUMBER: 1988-003946

UD - UPDATE CODE: 1988

Registro 4137 de 5614 - GeoRef Disc 3: 1985-1992

TI - TITLE: Geological history of the Cretaceous ophiolitic complexes of northwestern South America (Colombian Andes).

AU - AUTHORS: Bourgois-Jacques; Toussaint-Jean-Francois; Gonzalez-Humberto; Azema-Jacques; Calle-Bernardo; Desmet-Alain; Murcia-Luis-A; Acevedo-Alvaro-P; Parra-Eduardo; Tournon-Jean

AF - AUTHOR AFFILIATION: Univ. Pierre et Marie Curie, Dep. Geotectonique, Paris, France

SO - SOURCE: Tectonophysics. 143; 4, Pages 307-327. 1987.

PB - PUBLISHER: Elsevier. Amsterdam, Netherlands. 1987.

CP - COUNTRY OF PUBLICATION: Netherlands

PY - PUBLICATION YEAR: 1987

LA - LANGUAGE: English

DE - DESCRIPTORS: Andes-; basins-; Cenozoic-; Colombia-; Cretaceous-; displacements-; faults-; folds-; igneous-rocks; marginal-basins; Mesozoic-; metamorphism-; nappes-; Northern-Andes; obduction-; ophiolite-; Paleogene-; plate-convergence; plate-tectonics; plutonic-rocks; South-America; tectonophysics-; Tertiary-; thrust-faults; ultramafics-; Western-Cordillera

CC - CATEGORY CODES: 18-Solid-earth-geophysics; 05A-Igneous-and-metamorphic-petrology; 16-Structural-geology

DT - DOCUMENT TYPE: Serial

BL - BIB LEVEL: Analytic

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

IS - ISSN: 0040-1951

CO - CODEN: TCTOAM

AN - ACCESSION NUMBER: 1988-004215

UD - UPDATE CODE: 1988

Registro 4138 de 5614 - GeoRef Disc 3: 1985-1992

TI - TITLE: A correction for the effect of comminution on the cation exchange capacity of clay-poor sandstones.

AU - AUTHORS: Huff-G-F

AF - AUTHOR AFFILIATION: Cit. Serv., Oil and Gas Corp., USA, United States

SO - SOURCE: SPE Formation Evaluation. 2; 3, Pages 338-344. 1987.

PB - PUBLISHER: Society of Petroleum Engineers (SPE). Richardson, TX, United States. 1987.

CP - COUNTRY OF PUBLICATION: United-States

PY - PUBLICATION YEAR: 1987

LA - LANGUAGE: English

DE - DESCRIPTORS: Cano-Limon-Well-3; cation-exchange-capacity; clastic-rocks; Colombia-; geochemistry-; La-Yuca-Well-6; Llanos-; properties-; sandstone-; sedimentary-rocks; South-America; X-ray-diffraction-analysis

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

DT - DOCUMENT TYPE: Serial

BL - BIB LEVEL: Analytic

IL - ILLUSTRATION: Refs: 17; illus. incl. 5 tables.

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

IS - ISSN: 0885-923X

AN - ACCESSION NUMBER: 1988-005140

UD - UPDATE CODE: 1988

Registro 4139 de 5614 - GeoRef Disc 3: 1985-1992

TI - TITLE: Morphology of the Wadati-Benioff zone and volcanism in Ecuador and northern Peru.

AU - AUTHORS: Hanus-V; Vanek-J

AF - AUTHOR AFFILIATION: Czech. Acad. Sci., Inst. Geol. and Geotech., Prague, Czechoslovakia

SO - SOURCE: Geofisica Internacional. 26; 4, Pages 499-524. 1987.

PB - PUBLISHER: Union Geofisica Mexicana. Mexico, D.F., Mexico. 1987.

CP - COUNTRY OF PUBLICATION: Mexico

PY - PUBLICATION YEAR: 1987

LA - LANGUAGE: English

LS - LANGUAGE OF SUMMARY: Spanish

DE - DESCRIPTORS: Andes-; Cenozoic-; Colombia-; distribution-; earthquakes-; Ecuador-; epicenters-; Nazca-Plate; Neogene-; northern-Peru; Peru-; petrology-; Pleistocene-; Pliocene-; Quaternary-; seismology-; South-America; Tertiary-; volcanism-; volcanoes-; volcanology-; Wadati-Benioff-zone

CC - CATEGORY CODES: 18-Solid-earth-geophysics

DT - DOCUMENT TYPE: Serial

BL - BIB LEVEL: Analytic

IL - ILLUSTRATION: Refs: 38; illus. incl. 1 table.

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

IS - ISSN: 0016-7169

CO - CODEN: GFINAC

AN - ACCESSION NUMBER: 1988-006987

UD - UPDATE CODE: 1988

Registro 4140 de 5614 - GeoRef Disc 3: 1985-1992

TI - TITLE: Geometrical control of subduction-related magmatism; the Mesozoic and Cenozoic plutonic history of western Colombia.

AU - AUTHORS: Aspden-J-A; McCourt-W-J; Brook-M

AF - AUTHOR AFFILIATION: Br. Geol. Surv., Keyworth, United Kingdom

SO - SOURCE: Journal of the Geological Society of London. 144; 6, Pages 893-905. 1987.

PB - PUBLISHER: Geological Society of London. London, United Kingdom. 1987.

CP - COUNTRY OF PUBLICATION: United-Kingdom

PY - PUBLICATION YEAR: 1987

LA - LANGUAGE: English

DE - DESCRIPTORS: batholiths-; Cenozoic-; Colombia-; geometry-; intrusions-; Jurassic-; magmas-; Mesozoic-; plate-tectonics; plutons-; South-America; subduction-; tectonophysics-; Tertiary-; Triassic-; western-Colombia

CC - CATEGORY CODES: 18-Solid-earth-geophysics; 05A-Igneous-and-metamorphic-petrology

DT - DOCUMENT TYPE: Serial

BL - BIB LEVEL: Analytic

IL - ILLUSTRATION: Refs: 90; illus. incl. 1 table, geol. sketch maps.

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

IS - ISSN: 0016-7649

CO - CODEN: JGSLAS

AN - ACCESSION NUMBER: 1988-007524

UD - UPDATE CODE: 1988

Registro 4141 de 5614 - GeoRef Disc 3: 1985-1992

TI - TITLE: Satellite radars for geologic mapping in tropical regions.

AU - AUTHORS: Ford-J-P; Sabins-F-F

AF - AUTHOR AFFILIATION: Calif. Inst. Technol., Jet Propul. Lab., Pasadena, CA, United States

BK - BOOK TITLE: In: Proceedings of the Fifth thematic conference on remote sensing for exploration geology; mineral and energy exploration; technology for a competitive world; Volume 1.

BA - BOOK AUTHORS: Cook-Jerald-J (chairperson); Rogers-Robert-H (chairperson)

SO - SOURCE: Pages 307-316. 1987.

PB - PUBLISHER: Environ. Res. Inst. Mich.. Ann Arbor, MI, United States. 1987.

CP - COUNTRY OF PUBLICATION: United-States

PY - PUBLICATION YEAR: 1987

CN - CONFERENCE INFORMATION: Fifth thematic conference on remote sensing for exploration geology; mineral and energy exploration; technology for a competitive world. Reno, NV, United States. Sept. 29-Oct. 2, 1986.

LA - LANGUAGE: English

DE - DESCRIPTORS: Amazon-Basin; Asia-; Borneo-; Brazil-; cartography-; Colombia-; East-Malaysia; Far-East; faults-; folds-; geophysical-surveys; imagery-; Indonesia-; Kahakam-River; Kalimantan-Indonesia; lineaments-; Malay-Archipelago; Malaysia-; Peru-; radar-methods; Rajang-Block; Ratah-River-valley; remote-sensing; Sarawak-Malaysia; South-America; structural-geology; surveys-; tectonics-; terrains-; tropical-environment

CC - CATEGORY CODES: 16-Structural-geology; 20-Applied-geophysics

DT - DOCUMENT TYPE: Book; Conference-Document

BL - BIB LEVEL: Analytic

IL - ILLUSTRATION: Refs: 15; geol. sketch maps.

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

AN - ACCESSION NUMBER: 1988-008597

UD - UPDATE CODE: 1988

Registro 4142 de 5614 - GeoRef Disc 3: 1985-1992

TI - TITLE: Cross-channel mixing and its effect on sedimentation in the Orinoco River.

AU - AUTHORS: Stallard-R-F

AF - AUTHOR AFFILIATION: Princeton Univ., Dep. Geol. and Geophys. Sci., Princeton, NJ, United States

SO - SOURCE: Water Resources Research. 23; 10, Pages 1977-1986. 1987.

PB - PUBLISHER: American Geophysical Union. Washington, DC, United States. 1987.

CP - COUNTRY OF PUBLICATION: United-States

PY - PUBLICATION YEAR: 1987

LA - LANGUAGE: English

AB - ABSTRACT: At high discharge, cross-channel mixing of water in the Orinoco River main stem requires several days and up to 500 km of downriver transit for completion. During mixing, substantial amounts of <0.063 mm sediment are lost from suspension. The water closest to the left bank appears to lose the most, probably by deposition onto the floodplain. This occurs in two ways. First, sediment-laden left-bank tributaries draining the Andes, such as the Apure, deposit sediment in distributary systems following impoundment by the Orinoco backwater. Second, when sediment-laden waters from the Andes actually join the Orinoco, the slow nature of cross-channel mixing causes the water and sediment to be confined more to the left side of the channel. Significant sediment loss or storage probably occurs only near flood stage.--Modified journal abstract.

DE - DESCRIPTORS: Andes-; channels-; Colombia-; drainage-basins; engineering-geology; hydraulics-; hydrogeology-; hydrology-; mixing-; Orinoco-River; rivers-and-streams; sedimentation-; South-America; stream-transport; surveys-; suspended-materials; transport-; Venezuela-; waterways-

CC - CATEGORY CODES: 21-Hydrogeology; 30-Engineering-geology

DT - DOCUMENT TYPE: Serial

BL - BIB LEVEL: Analytic

IL - ILLUSTRATION: Refs: 20; illus. incl. 5 tables, sketch map.

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

IS - ISSN: 0043-1397

CO - CODEN: WRERAQ

AN - ACCESSION NUMBER: 1988-008780

UD - UPDATE CODE: 1988

Registro 4143 de 5614 - GeoRef Disc 3: 1985-1992

TI - TITLE: Nevado del Ruiz Volcano, Colombia; the November 1985 eruption and related events.

AU - AUTHORS: Williams-Stanley-N

AF - AUTHOR AFFILIATION: La. State Univ., Dep. Geol. and Geophys., Baton Rouge, LA, United States

SO - SOURCE: Journal of Volcanology and Geothermal Research. 33; 4, Pages 355-360. 1987.

PB - PUBLISHER: Elsevier. Amsterdam, Netherlands. 1987.

CP - COUNTRY OF PUBLICATION: Netherlands

PY - PUBLICATION YEAR: 1987

LA - LANGUAGE: English

DE - DESCRIPTORS: Armero-; catastrophes-; Chinchina-; Colombia-; eruptions-; geologic-hazards; Nevado-del-Ruiz; South-America; volcanoes-; volcanology-; west-central-Colombia

CC - CATEGORY CODES: 24-Quaternary-geology

DT - DOCUMENT TYPE: Serial

BL - BIB LEVEL: Analytic

IL - ILLUSTRATION: Refs: 20

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

IS - ISSN: 0377-0273

CO - CODEN: JVGRDQ

AN - ACCESSION NUMBER: 1988-009082

UD - UPDATE CODE: 1988

Registro 4144 de 5614 - GeoRef Disc 3: 1985-1992

TI - TITLE: Long-term reactions of phosphate rocks with an Oxisol in Colombia.

AU - AUTHORS: Chien-S-H; Hammond-L-L; Leon-L-A

AF - AUTHOR AFFILIATION: Int. Fertil. Dev. Cent., Agro-Econ. Div., Muscle Shoals, AL, United States

SO - SOURCE: Soil Science. 144; 4, Pages 257-265. 1987.

PB - PUBLISHER: Williams & Wilkins Company. Baltimore, MD, United States. 1987.

CP - COUNTRY OF PUBLICATION: United-States

PY - PUBLICATION YEAR: 1987

LA - LANGUAGE: English

DE - DESCRIPTORS: chemical-analysis; chemically-precipitated-rocks; classification-; Colombia-; fertilizers-; geochemistry-; Oxisols-; pH-; phosphate-rocks; phosphorus-; properties-; sedimentary-rocks; soil-surveys; soils-; sorption-; South-America; surveys-

CC - CATEGORY CODES: 25-Soils

DT - DOCUMENT TYPE: Serial

BL - BIB LEVEL: Analytic

IL - ILLUSTRATION: Refs: 19; illus. incl. 7 tables.

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

IS - ISSN: 0038-075X

CO - CODEN: SOSCAK

AN - ACCESSION NUMBER: 1988-010115

UD - UPDATE CODE: 1988

Registro 4145 de 5614 - GeoRef Disc 3: 1985-1992

TI - TITLE: Cenozoic magmatism in the Colombian Andes.

AU - AUTHORS: Restrepo-J-J; Toussaint-J-F

AF - AUTHOR AFFILIATION: Univ. Nac. Colomb., COL, Colombia

BK - BOOK TITLE: In: Actas del Decimo congreso geologico argentino.

BA - BOOK AUTHORS: Acenolaza-Florencio-G (chairperson)

SO - SOURCE: Actas del Congreso Geologico Argentino. 10, Vol. 4; Pages 140-141. 1987.

NT - NOTES: Granitos fanerzoicos circum-pacificos--Circum Pacific Phanerozoic granites

PB - PUBLISHER: Asociacion Geologica Argentina. Buenos Aires, Argentina. 1987.

CP - COUNTRY OF PUBLICATION: Argentina

PY - PUBLICATION YEAR: 1987

CN - CONFERENCE INFORMATION: Decimo congreso geologico argentino. San Miguel de Tucuman, Argentina. Sept. 14-18, 1987.

LA - LANGUAGE: English

DE - DESCRIPTORS: alkaline-earth-metals; Andes-; Cenozoic-; Colombia-; Cordillera-; geochronology-; isotopes-; metals-; Miocene-; Neogene-; paleomagnetism-; patterns-; ratios-; South-America; Sr-87-Sr-86; stable-isotopes; strontium-; surveys-; Tertiary-; Western-Cordillera

CC - CATEGORY CODES: 03-Geochronology

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

BL - BIB LEVEL: Analytic

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

IS - ISSN: 0325-2620

CO - CODEN: AJOGBI

AN - ACCESSION NUMBER: 1988-011842

UD - UPDATE CODE: 1988

Registro 4146 de 5614 - GeoRef Disc 3: 1985-1992

TI - TITLE: Late Cretaceous plutonism in the central cordillera of Colombia.

AU - AUTHORS: Gonzalez-H; Restrepo-J-J; Montoya-T; Preciado-L-M; Rodriguez-G; Sanchez-F; Vasquez-H

AF - AUTHOR AFFILIATION: Ingeominas, Medellin, Colombia

BK - BOOK TITLE: In: Actas del Decimo congreso geologico argentino.

BA - BOOK AUTHORS: Acenolaza-Florencio-G (chairperson)

SO - SOURCE: Actas del Congreso Geologico Argentino. 10, Vol. 4; Pages 160. 1987.

NT - NOTES: Granitos fanerzoicos circum-pacificos--Circum Pacific Phanerozoic granites

PB - PUBLISHER: Asociacion Geologica Argentina. Buenos Aires, Argentina. 1987.

CP - COUNTRY OF PUBLICATION: Argentina

PY - PUBLICATION YEAR: 1987

CN - CONFERENCE INFORMATION: Decimo congreso geologico argentino. San Miguel de Tucuman, Argentina. Sept. 14-18, 1987.

LA - LANGUAGE: English

DE - DESCRIPTORS: Altavista-Stock; Anteoquian-Batholith; Central-Cordillera; Colombia-; Cretaceous-; distribution-; intrusions-; Mesozoic-; petrology-; South-America; stocks-; Upper-Cretaceous

CC - CATEGORY CODES: 05A-Igneous-and-metamorphic-petrology

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

BL - BIB LEVEL: Analytic

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

IS - ISSN: 0325-2620

CO - CODEN: AJOGBI

AN - ACCESSION NUMBER: 1988-011848

UD - UPDATE CODE: 1988

Registro 4147 de 5614 - GeoRef Disc 3: 1985-1992

TI - TITLE: Evolucion y marco tectonico del vulcanismo Meso-Cenozoico de Colombia

Translated Title: Evolution and tectonics of the Mesozoic-Cenozoic volcanism of Colombia.

AU - AUTHORS: Leal-A-Murcia

AF - AUTHOR AFFILIATION: INGEOMINAS, Ibague, Colombia

BK - BOOK TITLE: In: Actas del Decimo congreso geologico argentino.

BA - BOOK AUTHORS: Acenolaza-Florencio-G (chairperson)

SO - SOURCE: Actas del Congreso Geologico Argentino. 10, Vol. 4; Pages 319-320. 1987.

NT - NOTES: Vulcanismo andino--Andean volcanism

PB - PUBLISHER: Asociacion Geologica Argentina. Buenos Aires, Argentina. 1987.

CP - COUNTRY OF PUBLICATION: Argentina

PY - PUBLICATION YEAR: 1987

CN - CONFERENCE INFORMATION: Decimo congreso geologico argentino. San Miguel de Tucuman, Argentina. Sept. 14-18, 1987.

LA - LANGUAGE: Spanish

DE - DESCRIPTORS: Cenozoic-; Colombia-; Ecuador-; evolution-; Mesozoic-; South-America; structural-geology; tectonics-; Venezuela-; volcanology-

CC - CATEGORY CODES: 16-Structural-geology

DT - DOCUMENT TYPE: Serial; Conference-Document

BL - BIB LEVEL: Analytic

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

IS - ISSN: 0325-2620

CO - CODEN: AJOGBI

AN - ACCESSION NUMBER: 1988-011897

UD - UPDATE CODE: 1988

Registro 4148 de 5614 - GeoRef Disc 3: 1985-1992

TI - TITLE: Petrogenetic interpretations of mineral chemistry and geochemistry from the Nevado del Ruiz Volcano, Central Cordillera, Colombia.

AU - AUTHORS: Vatin-Perignon-N; Goemans-P; Oliver-R-A; Briqueu-L

AF - AUTHOR AFFILIATION: Univ. Sci., Cedex, France

BK - BOOK TITLE: In: Actas del Decimo congreso geologico argentino.

BA - BOOK AUTHORS: Acenolaza-Florencio-G (chairperson)

SO - SOURCE: Actas del Congreso Geologico Argentino. 10, Vol. 4; Pages 321-324. 1987.

NT - NOTES: Vulcanismo andino--Andean volcanism

PB - PUBLISHER: Asociacion Geologica Argentina. Buenos Aires, Argentina. 1987.

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

CP - COUNTRY OF PUBLICATION: Argentina

PY - PUBLICATION YEAR: 1987

CN - CONFERENCE INFORMATION: Decimo congreso geologico argentino. San Miguel de Tucuman, Argentina. Sept. 14-18, 1987.

LA - LANGUAGE: English

DE - DESCRIPTORS: andesites-; Cenozoic-; Central-Cordillera; Colombia-; Holocene-; IGCP-; igneous-rocks; Nevado-del-Ruiz; Nevado-del-Ruiz-Volcano; petrology-; Pleistocene-; Quaternary-; South-America; volcanic-rocks; volcanoes-; volcanology-

CC - CATEGORY CODES: 05A-Igneous-and-metamorphic-petrology

DT - DOCUMENT TYPE: Serial; Conference-Document

BL - BIB LEVEL: Analytic

NN - ANNOTATION: IGCP Project No. 249.

IL - ILLUSTRATION: Refs: 8

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

IS - ISSN: 0325-2620

CO - CODEN: AJOGBI

AN - ACCESSION NUMBER: 1988-011898

UD - UPDATE CODE: 1988

Registro 4149 de 5614 - GeoRef Disc 3: 1985-1992

TI - TITLE: Shallow-water Octocorallia and related submarine lithification, San Andres Island, Colombia.

AU - AUTHORS: Kocurko-M-John

AF - AUTHOR AFFILIATION: Midwest. State Univ., Dep. Geol. and Geophys., Wichita Falls, TX, United States

SO - SOURCE: The Texas Journal of Science. 39; 4, Pages 349-365. 1987.

PB - PUBLISHER: Texas Academy of Science. San Angelo, TX, United States. 1987.

CP - COUNTRY OF PUBLICATION: United-States

PY - PUBLICATION YEAR: 1987

LA - LANGUAGE: English

DE - DESCRIPTORS: Anthozoa-; aragonite-; calcification-; carbonate-rocks; carbonates-; Coelenterata-; Colombia-; diagenesis-; Invertebrata-; limestone-; materials-; octocorals-; reefs-; San-Andres-Island; sedimentary-petrology; sedimentary-rocks; shallow-water-environment; South-America

CC - CATEGORY CODES: 06A-Sedimentary-petrology

DT - DOCUMENT TYPE: Serial

BL - BIB LEVEL: Analytic

IL - ILLUSTRATION: Refs: 9; illus. incl. 2 tables, 7 plates, sketch maps.

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

IS - ISSN: 0040-4403

CO - CODEN: TJSCAU

AN - ACCESSION NUMBER: 1988-013076

UD - UPDATE CODE: 1988

Registro 4150 de 5614 - GeoRef Disc 3: 1985-1992

TI - TITLE: On the main channel length-area relationship for channel networks.

AU - AUTHORS: Mesa-Oscar-J; Gupta-Vijay-K

AF - AUTHOR AFFILIATION: Univ. Nac. Colomb., Medellin, Colombia

SO - SOURCE: Water Resources Research. 23; 11, Pages 2119-2122. 1987.

PB - PUBLISHER: American Geophysical Union. Washington, DC, United States. 1987.

CP - COUNTRY OF PUBLICATION: United-States

PY - PUBLICATION YEAR: 1987

LA - LANGUAGE: English

AB - ABSTRACT: Motivated by the empirical relationship between the main channel length and the basin area for river networks, a similar equation is derived analytically using the random model postulates and the additional assumption that link lengths have a common exponential probability distribution. Specifically, it is shown that in networks with large magnitude m, the main channel length l(m), and the magnitude are related by l(m) approximately beta (2pi ) (super 1/2) (2m) ) (super 1/2) , where beta is mean link length. The result is utilized to explain another empirical relationship between the distance to the center of gravity l (sub c) (m) and the main channel length; l (sub c) (m) approximately 1(m)/2.--Modified journal abstract.

DE - DESCRIPTORS: channels-; drainage-basins; drainage-patterns; fluvial-features; fractals-; geomorphology-; hydrology-; mathematical-models; models-; networks-; quantitative-geomorphology; rivers-and-streams; theoretical-studies; waterways-

CC - CATEGORY CODES: 23-Geomorphology; 30-Engineering-geology; 21-Hydrogeology

DT - DOCUMENT TYPE: Serial

BL - BIB LEVEL: Analytic

IL - ILLUSTRATION: Refs: 23

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

IS - ISSN: 0043-1397

CO - CODEN: WRERAQ

AN - ACCESSION NUMBER: 1988-013165

UD - UPDATE CODE: 1988

Registro 4151 de 5614 - GeoRef Disc 3: 1985-1992

TI - TITLE: Actividad sismica posterior al proceso eruptivo del 13 de noviembre de 1985 en el Volcan Nevado del Ruiz, Colombia

Translated Title: Seismic activity after the eruption of November 13, 1985, Nevado del Ruiz Volcano, Colombia.

AU - AUTHORS: Gueendel-Umana-Federico; Gonzalez-Victor


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