No. Registros Solicitud 1 5614 colombia

DE - DESCRIPTORS: Bolivia-; Colombia-; deep-focus-earthquakes; earthquakes-; Fiji-; focal-mechanism; Indonesian-Seas; Japan-Sea; magnitude-frequency-ratio; Melanesia-; North-Pacific; Northwest-Pacific; Oceania-; Pacific-Ocean; Polynesia-; rupture-; slabs-; South-America; stress-drops; subduction-zones; temperature-; three-dimensional-models; Tonga-; West-Pacific

CC - CATEGORY CODES: 19-Seismology

DT - DOCUMENT TYPE: Serial; Conference-Document

BL - BIB LEVEL: Analytic

NN - ANNOTATION: Includes appendix.

IL - ILLUSTRATION: Refs: 96; illus. incl. 3 tables.

RF - REFERENCE SOURCE: GeoRef, Copyright 2002, American Geological Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands

IS - ISSN: 0031-9201

CO - CODEN: PEPIAM

AN - ACCESSION NUMBER: 2002-014451

UD - UPDATE CODE: 200206

Registro 626 de 5614 - GeoRef : 2002-2004/12

TI - TITLE: "Detached" deep earthquakes; are they really?.

AU - AUTHORS: Okal-Emile-A

AF - AUTHOR AFFILIATION: Northwestern University, Department of Geological Sciences, Evanston, IL, United States

BK - BOOK TITLE: In: Processes and consequences of deep subduction.

BA - BOOK AUTHORS: Rubie-David-C (editor); van-der-Hilst-Rob-D (editor)

SO - SOURCE: Physics of the Earth and Planetary Interiors. 127; 1-4, Pages 109-143. 2001.

PB - PUBLISHER: Elsevier. Amsterdam, Netherlands. 2001.

CP - COUNTRY OF PUBLICATION: Netherlands

PY - PUBLICATION YEAR: 2001

CN - CONFERENCE INFORMATION: Alfred-Wegener workshop on Processes and consequences of deep subduction. Verbania, Italy. Sept. 1999.

LA - LANGUAGE: English

AB - ABSTRACT: We use primarily the generation of acoustic T waves into the ocean by deep seismic sources to investigate the propagation of high-frequency seismic energy from the bottom of subduction zones to the shoreline at the earth"s surface. Conversion from shear waves to oceanic acoustic waves can be used as a proxy for the existence of a continuous slab featuring low anelastic attenuation. With the help of other techniques, such as the estimation of Q from S-to-P spectral amplitude ratios, we examine systematically a number of regions where earthquakes have been described as "detached". We establish the mechanical continuity of the slab to the hypocenters of the 1990 Sakhalin and 1982 Bonin events, which occurred several hundred kilometers in front of the mainstream seismic zone. The study of the 1989 Paraguay shock is inconclusive, probably due to its much smaller size. The vertical continuity of the South American slab through its aseismic depth range is verified, and a similar situation probably exists in Java. Attenuation data suggests that the deep Spanish earthquakes occur within a vertically large segment of colder material, and a similar situation may exist in Colombia. The only clearly detached deep events with no mechanical connection to the surface make up the Vityaz cluster, under the North Fiji Basin. Based on a variety of geophysical evidence, the small deep earthquakes under New Zealand are likely to take place in a detached blob at least 350km below the termination of mainstream seismicity. These results support a model integrating buoyancy forces over a long continuous slab as the source of the down-dip compressional stresses observed in large earthquakes at the bottom of the transition zone.

DE - DESCRIPTORS: acoustical-waves; body-waves; California-; Caroline-Islands; deep-focus-earthquakes; earthquakes-; East-Pacific-Ocean-Islands; elastic-waves; focus-; French-Polynesia; Hawaii-; Mariana-Islands; Micronesia-; Oceania-; P-waves; Pacific-Ocean; Polynesia-; Q-; S-waves; Samoa-; seismic-energy; seismic-waves; seismicity-; slabs-; Society-Islands; subduction-zones; T-waves; United-States

CC - CATEGORY CODES: 19-Seismology

DT - DOCUMENT TYPE: Serial; Conference-Document

BL - BIB LEVEL: Analytic

NN - ANNOTATION: Includes appendix.

IL - ILLUSTRATION: Refs: 75; illus. incl. 3 tables, sketch maps.

RF - REFERENCE SOURCE: GeoRef, Copyright 2002, American Geological Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands

IS - ISSN: 0031-9201

CO - CODEN: PEPIAM

AN - ACCESSION NUMBER: 2002-014450

UD - UPDATE CODE: 200206

Registro 627 de 5614 - GeoRef : 2002-2004/12

TI - TITLE: Eddy development and motion in the Caribbean Sea.

AU - AUTHORS: Andrade-Carlos-A; Barton-Eric-D

AF - AUTHOR AFFILIATION: Centro de Investigaciones Oceanograficas e Hidrograficas, Cartagena, Colombia

SO - SOURCE: Journal of Geophysical Research, C, Oceans. 105; 11, Pages 26,191-26,202. 2000.

PB - PUBLISHER: American Geophysical Union. Washington, DC, United States. 2000.

CP - COUNTRY OF PUBLICATION: United-States

PY - PUBLICATION YEAR: 2000

LA - LANGUAGE: English

DE - DESCRIPTORS: altimetry-; Atlantic-Ocean; bathymetry-; Caribbean-Sea; Cayman-Trough; currents-; cyclones-; eddy-flow; Intertropical-Convergence-Zone; mapping-; North-Atlantic; ocean-circulation; ocean-currents; ocean-waves; remote-sensing; salinity-; satellite-methods; sea-level-changes; TOPEX-POSEIDON; Venezuelan-Basin

CC - CATEGORY CODES: 07-Oceanography

DT - DOCUMENT TYPE: Serial

BL - BIB LEVEL: Analytic

MC - MAP COORDINATES: LAT: N100000; N250000; LONG: W0550000; W0900000.

IL - ILLUSTRATION: Refs: 21; illus. incl. geol. sketch maps.

RF - REFERENCE SOURCE: GeoRef, Copyright 2002, American Geological Institute.

IS - ISSN: 8755-8556

AN - ACCESSION NUMBER: 2002-013921

UD - UPDATE CODE: 200206

Registro 628 de 5614 - GeoRef : 2002-2004/12

TI - TITLE: Recent activity and hazards at active volcanoes; Galeras (Colombia), Soufriere Hills (Montserrat), Masaya Caldera (Nicaragua), and Long Valley Caldera (USA).

AU - AUTHORS: Stix-John

AF - AUTHOR AFFILIATION: Universite de Montreal, Departement de Geologie, Montreal, PQ, Canada

BK - BOOK TITLE: In: Recueil des resumes; carrefour des sciences de la terre--Abstract volume; carrefour in earth sciences.

BA - BOOK AUTHORS: Hebert-Rejean (president)

SO - SOURCE: Program with Abstracts - Geological Association of Canada; Mineralogical Association of Canada; Canadian Geophysical Union, Joint Annual Meeting. 23; Pages 180-181. 1998.

PB - PUBLISHER: Geological Association of Canada. Waterloo, ON, Canada. 1998.

CP - COUNTRY OF PUBLICATION: Canada

PY - PUBLICATION YEAR: 1998

CN - CONFERENCE INFORMATION: Joint GAC-MAC annual meeting; Crossroads in earth sciences. Quebec City, PQ, Canada. May 18-20, 1998.

LA - LANGUAGE: English

DE - DESCRIPTORS: Andes-; Antilles-; calderas-; California-; Caribbean-region; Central-America; Colombia-; Galeras-; geologic-hazards; Lesser-Antilles; Long-Valley-Caldera; Masaya-; Mono-County-California; Montserrat-Island; Nicaragua-; resurgence-; Soufriere-; South-America; stratovolcanoes-; United-States; volcanic-features; volcanic-risk; volcanism-; volcanoes-; West-Indies

CC - CATEGORY CODES: 24-Quaternary-geology

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

BL - BIB LEVEL: Analytic

MC - MAP COORDINATES: LAT: N011300; N011300; LONG: W0772200; W0772200.

LAT: N413600; N413600; LONG: E0014800; E0014800.

LAT: N115900; N115900; LONG: W0860300; W0860300.

LAT: N374100; N374600; LONG: W1184300; W1185200.

IL - ILLUSTRATION: Refs: 3

RF - REFERENCE SOURCE: GeoRef, Copyright 2002, American Geological Institute.

IS - ISSN: 0701-8738

CO - CODEN: PAACD6

AN - ACCESSION NUMBER: 2002-013416

UD - UPDATE CODE: 200206

Registro 629 de 5614 - GeoRef : 2002-2004/12

TI - TITLE: Behaviour of the fecal pollution indicators in a soil irrigated with treated wastewater under onsurface and subsurface dip irrigation.

AU - AUTHORS: Campos-C; Oron-G; Saigot-M; Gillerman-L

AF - AUTHOR AFFILIATION: Universidad Javeriana, Departamento de Microbiologia, Bogota, Colombia

BK - BOOK TITLE: In: Environmental challenges for the next millenium; selected proceedings of the 7th international conference of the Israel Society for Ecology and Environmental Quality Sciences.

BA - BOOK AUTHORS: Adin-A (editor); Belkin-S (editor)

SO - SOURCE: Water Science and Technology. 42; 1-2, Pages 75-79. 2000.

PB - PUBLISHER: Pergamon. Oxford-New York, International. 2000.

CP - COUNTRY OF PUBLICATION: International

PY - PUBLICATION YEAR: 2000

CN - CONFERENCE INFORMATION: 7th international conference of the Israel Society for Ecology and Environmental Quality Sciences. Jerusalem, Israel. June 13-18, 1999.

LA - LANGUAGE: English

AB - ABSTRACT: A critical objective for any wastewater reuse programme is to minimise health and environmental hazard. When applying wastewater to soil-plant systems, it is to be noted that the passage of water through the soil considerably reduces the number of microorganisms carried by the reclaimed wastewater. Factors that affect survival include number and type of microorganisms, soil organic matter content, temperature, moisture, pH, rainfall, sunlight, protection provided by foliage and antagonism by soil microflora. The purpose of this work was to examine the behaviour of fecal pollution indicators in a soil irrigated with treated wastewater under onsurface and subsurface drip irrigation. The experiment was conducted in a vineyard located at a commercial farm near the City of Arad (Israel). Wastewater and soil samples were monitored during the irrigation period and examined for fecal coliforms, somatic and F+ coliphages and helminth eggs. Physico-chemical parameters were controlled in order to determine their relationship with removal of microorganisms. The results showed high reduction of the concentration of microorganisms when wastewater moves through the soil; and a good correlation between the reduction of fecal pollution indicators and moisture content, organic matter concentration and pH. The application of secondary treated domestic wastewater in this specific soil and under these irrigation systems affect the survival of microorganisms, thus reducing the health and environmental risk.

DE - DESCRIPTORS: Arad-Israel; Asia-; bacteria-; behavior-; coliform-bacteria; filtration-; irrigation-; Israel-; Middle-East; moisture-; pollution-; soils-; waste-water; water-treatment

CC - CATEGORY CODES: 22-Environmental-geology

DT - DOCUMENT TYPE: Serial; Conference-Document

BL - BIB LEVEL: Analytic

IL - ILLUSTRATION: Refs: 9; illus. incl. 1 table.

RF - REFERENCE SOURCE: GeoRef, Copyright 2002, American Geological Institute.

IS - ISSN: 0273-1223

IB - ISBN: 1-900222-39-6

CO - CODEN: WSTED4

AN - ACCESSION NUMBER: 2002-010439

UD - UPDATE CODE: 200205

Registro 630 de 5614 - GeoRef : 2002-2004/12

TI - TITLE: A Grenvillian arc on the margin of Amazonia; evidence from the southern Oaxacan Complex, southern Mexico.

AU - AUTHORS: Keppie-J-Duncan; Dostal-J; Ortega-Gutierrez-F; Lopez-R

AF - AUTHOR AFFILIATION: Universidad Nacional Autonoma de Mexico, Instituto de Geologia, Mexico City, Mexico

SO - SOURCE: Precambrian Research. 112; 3-4, Pages 165-181. 2001.

PB - PUBLISHER: Elsevier. Amsterdam, International. 2001.

CP - COUNTRY OF PUBLICATION: International

PY - PUBLICATION YEAR: 2001

LA - LANGUAGE: English

AB - ABSTRACT: The rocks in the southern Oaxacan Complex of Mexico form part of the basement of Oaxaquia, a terrane that underlies most of eastern Mexico. They have undergone granulite facies metamorphism at approximately 1 Ga, that was initially overprinted by lower amphibolite facies metamorphism accompanied by extensive hydration, and then by greenschist facies metamorphism. Geochemical data indicate that protoliths include volcanic arc lavas and sediments intruded by a rift-related granite. The metavolcanic rocks have SiO (sub 2) ranging between 55 and 72%, are typically enriched in highly incompatible elements such as Ba, Rb and light rare earth elements, and are accompanied by relative depletion of Nb and Ti characteristic of subduction-related magmas. The granite has SiO (sub 2) ranging between 67 and 70%, is enriched in strongly incompatible elements, and depleted in Nb and Ti indicative of either a crustal source or a subduction-related tectonic setting. Concordant, U-Pb analyses of single zircons from this granite yield an age of 1117+ or -4 and 988+ or -5 Ma interpreted as the age of intrusion and the time of peak granulite facies metamorphism, respectively. Combined with published information from other parts of Mexico, these data indicate that Oaxaquia was a juvenile arc metamorphosed during a relatively young Grenvillian metamorphism at 990 Ma. Similar characteristics may also be found in the Andean massifs of Colombia and in the Appalachian terranes (Carolina-Piedmont and Avalon) of Amazonian provenance. This suggests that Oaxaquia may also have lain adjacent to northwestern Amazonia at approximately 1 Ga, a location that may allow Neoproterozoic subduction as the origin of the hydrous, lower amphibolite facies metamorphism. It would also provide a proximal source for low grade to unmetamorphosed approximately 1 Ga and Neoproterozoic igneous boulders in northern Oaxaquia and 1000-900 Ma detrital zircons in Neoproterozoic and Paleozoic sedimentary rocks in Avalonia and Iberia.

DE - DESCRIPTORS: absolute-age; Amazonia-; amphibolite-facies; calc-alkalic-composition; cathodoluminescence-; dates-; facies-; geochemistry-; gneisses-; granulite-facies; greenschist-facies; Grenvillian-Orogeny; hydration-; igneous-rocks; intrusions-; lava-; magmas-; metals-; metamorphic-rocks; metamorphism-; Mexico-; Neoproterozoic-; nesosilicates-; Oaxacan-Complex; Oaxaquia-Terrane; orthosilicates-; petrography-; plate-tectonics; Precambrian-; Proterozoic-; protoliths-; rare-earths; reconstruction-; Rodinia-; silicates-; southern-Mexico; subduction-; tectonics-; trace-elements; U-Pb; upper-Precambrian; variations-; volcanic-rocks; zircon-

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

DT - DOCUMENT TYPE: Serial

BL - BIB LEVEL: Analytic

MC - MAP COORDINATES: LAT: N154500; N173000; LONG: W0960000; W0971500.

IL - ILLUSTRATION: Refs: 63; illus. incl. 2 tables, sketch maps.

RF - REFERENCE SOURCE: GeoRef, Copyright 2001, American Geological Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands

IS - ISSN: 0301-9268

CO - CODEN: PCBRBY

AN - ACCESSION NUMBER: 2002-010317

UD - UPDATE CODE: 200204

Registro 631 de 5614 - GeoRef : 2002-2004/12

TI - TITLE: The (super 18) O/ (super 16) O isotopic card of natural and synthetic emeralds; geological and archeological implications.

AU - AUTHORS: Giuliani-G; France-Lanord-C; Chaussidon-Marc

AF - AUTHOR AFFILIATION: Institut Francais de Recherche Scientifique pour le Developpement en Cooperation, Vandoeuvre, France

BK - BOOK TITLE: In: V. M. Goldschmidt conference; extended abstracts.

BA - BOOK AUTHORS: Anonymous

SO - SOURCE: Mineralogical Magazine. 62A, Part 1; Pages 525-526. 1998.

PB - PUBLISHER: Mineralogical Society. London, United Kingdom. 1998.

CP - COUNTRY OF PUBLICATION: United-Kingdom

PY - PUBLICATION YEAR: 1998

CN - CONFERENCE INFORMATION: V. M. Goldschmidt conference. Toulouse, France. Aug. 30-Sept. 3, 1998.

LA - LANGUAGE: English

DE - DESCRIPTORS: Afghanistan-; Africa-; archaeology-; Asia-; Australasia-; Australia-; Austria-; Brazil-; Central-Europe; Colombia-; Commonwealth-of-Independent-States; East-Africa; Egypt-; emerald-; Europe-; genesis-; Indian-Ocean-Islands; Indian-Peninsula; isotope-ratios; isotopes-; Madagascar-; North-Africa; O-18-O-16; oxygen-; Pakistan-; ring-silicates; Russian-Federation; silicates-; South-America; Southern-Africa; stable-isotopes; synthetic-materials; Tanzania-; Zambia-; Zimbabwe-

CC - CATEGORY CODES: 02D-Isotope-geochemistry; 01B-Mineralogy-of-silicates

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

BL - BIB LEVEL: Analytic

IL - ILLUSTRATION: Refs: 4

RF - REFERENCE SOURCE: GeoRef, Copyright 2001, American Geological Institute.

IS - ISSN: 0026-461X

AN - ACCESSION NUMBER: 2002-008968

UD - UPDATE CODE: 200204

Registro 632 de 5614 - GeoRef : 2002-2004/12

TI - TITLE: A stable carbon isotopic record of climatic change from a tropical mountain ecosystem in Colombia.

AU - AUTHORS: Boom-A; Schouten-S; Sinninghe-Damste-J-S; de-Leeuw-J-W; Boon-J-J; Hooghiemstra-H

AF - AUTHOR AFFILIATION: University of Amsterdam, Department of Palynology and Paleo/Actuoecology, Amsterdam, Netherlands

BK - BOOK TITLE: In: V. M. Goldschmidt conference; extended abstracts.

BA - BOOK AUTHORS: Anonymous

SO - SOURCE: Mineralogical Magazine. 62A, Part 1; Pages 189-190. 1998.

PB - PUBLISHER: Mineralogical Society. London, United Kingdom. 1998.

CP - COUNTRY OF PUBLICATION: United-Kingdom

PY - PUBLICATION YEAR: 1998

CN - CONFERENCE INFORMATION: V. M. Goldschmidt conference. Toulouse, France. Aug. 30-Sept. 3, 1998.

LA - LANGUAGE: English

DE - DESCRIPTORS: algae-; aliphatic-hydrocarbons; alkanes-; C-13-C-12; carbon-; carbon-dioxide; Cenozoic-; chromatograms-; climate-change; Colombia-; ecosystems-; hydrocarbons-; isotope-ratios; isotopes-; leaves-; mountains-; n-alkanes; Neogene-; organic-compounds; paleoclimatology-; Plantae-; Pliocene-; Quaternary-; South-America; stable-isotopes; temperature-; Tertiary-; tropical-environment

CC - CATEGORY CODES: 24-Quaternary-geology; 02D-Isotope-geochemistry

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

BL - BIB LEVEL: Analytic

IL - ILLUSTRATION: illus.

RF - REFERENCE SOURCE: GeoRef, Copyright 2001, American Geological Institute.

IS - ISSN: 0026-461X

AN - ACCESSION NUMBER: 2002-008791

UD - UPDATE CODE: 200204

Registro 633 de 5614 - GeoRef : 2002-2004/12

TI - TITLE: In the shadow of the Andes; a personal journey.

AU - AUTHORS: Vega-Pablo-Corral

SO - SOURCE: National Geographic. 199; 2, Pages 2-29. 2001.

PB - PUBLISHER: National Geographic Society. Washington, DC, United States. 2001.

CP - COUNTRY OF PUBLICATION: United-States

PY - PUBLICATION YEAR: 2001

LA - LANGUAGE: English

DE - DESCRIPTORS: Andes-; Argentina-; Bolivia-; Chile-; Colombia-; ecology-; ecosystems-; Ecuador-; forests-; human-activity; landform-description; mountains-; Peru-; Quito-Ecuador; rain-forests; South-America; Venezuela-; volcanism-

CC - CATEGORY CODES: 22-Environmental-geology

DT - DOCUMENT TYPE: Serial

BL - BIB LEVEL: Analytic

IL - ILLUSTRATION: illus.

RF - REFERENCE SOURCE: GeoRef, Copyright 2001, American Geological Institute.

IS - ISSN: 0027-9358

CO - CODEN: NGGMAF

AN - ACCESSION NUMBER: 2002-007442

UD - UPDATE CODE: 200203

Registro 634 de 5614 - GeoRef : 2002-2004/12

BK - BOOK TITLE: Accretion of organic carbon in the acid soils of the eastern plains of Colombia.

BA - BOOK AUTHORS: Trujillo-Wilma

CP - COUNTRY OF PUBLICATION: United-States

PY - PUBLICATION YEAR: 2000

DG - DEGREE GRANTED: Doctoral

DI - DEGREE GRANTING INSTITUTION: Ohio State University. Columbus, OH, United States. Pages: 120. 2000.

LA - LANGUAGE: English

DE - DESCRIPTORS: agriculture-; biomass-; carbon-; carbonates-; Colombia-; dolomite-; fertilizers-; gypsum-; lime-; mechanism-; organic-carbon; physical-properties; productivity-; savannas-; soils-; South-America; sulfates-

CC - CATEGORY CODES: 25-Soils

DT - DOCUMENT TYPE: Thesis-or-Dissertation

BL - BIB LEVEL: Monograph

RF - REFERENCE SOURCE: GeoRef, Copyright 2001, American Geological Institute.

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

AN - ACCESSION NUMBER: 2002-007092

UD - UPDATE CODE: 200203

Registro 635 de 5614 - GeoRef : 2002-2004/12

BK - BOOK TITLE: A tool for community-based water resources management in hillside watersheds.

BA - BOOK AUTHORS: Luijten-Joseph-Carlos

CP - COUNTRY OF PUBLICATION: United-States

PY - PUBLICATION YEAR: 1999

DG - DEGREE GRANTED: Doctoral

DI - DEGREE GRANTING INSTITUTION: University of Florida. Gainesville, FL, United States. Pages: 303. 1999.

LA - LANGUAGE: English

DE - DESCRIPTORS: agriculture-; Cabuyal-River; Colombia-; demand-; drinking-water; ecology-; irrigation-; land-use; models-; rainfall-; simulation-; South-America; southwestern-Colombia; spatial-variations; streamflow-; water-balance; water-management; water-resources; water-supply; watersheds-

CC - CATEGORY CODES: 21-Hydrogeology

DT - DOCUMENT TYPE: Thesis-or-Dissertation

BL - BIB LEVEL: Monograph

RF - REFERENCE SOURCE: GeoRef, Copyright 2001, American Geological Institute.

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

AN - ACCESSION NUMBER: 2002-007079

UD - UPDATE CODE: 200203

Registro 636 de 5614 - GeoRef : 2002-2004/12

BK - BOOK TITLE: Land use change and balances of greenhouse gases in Colombian tropical savannas.

BA - BOOK AUTHORS: Rondon-Marco-Antonio

CP - COUNTRY OF PUBLICATION: United-States

PY - PUBLICATION YEAR: 2000

DG - DEGREE GRANTED: Doctoral

DI - DEGREE GRANTING INSTITUTION: Cornell University. Ithaca, NY, United States. Pages: 223. 2000.

LA - LANGUAGE: English

DE - DESCRIPTORS: aliphatic-hydrocarbons; alkanes-; biomass-; carbon-; carbon-dioxide; Colombia-; ecosystems-; fires-; gases-; global-change; global-warming; hydrocarbons-; land-use; Llanos-; methane-; organic-carbon; organic-compounds; Oxisols-; savannas-; soils-; South-America; tropical-environment

CC - CATEGORY CODES: 22-Environmental-geology

DT - DOCUMENT TYPE: Thesis-or-Dissertation

BL - BIB LEVEL: Monograph

RF - REFERENCE SOURCE: GeoRef, Copyright 2001, American Geological Institute.

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

AN - ACCESSION NUMBER: 2002-006961

UD - UPDATE CODE: 200203

Registro 637 de 5614 - GeoRef : 2002-2004/12

TI - TITLE: Heterogeneity, anisotropy and scale effect in geomechanical properties of rocks in and around the Abejorral marble body, Central Cordillera of the Colombian Andes.

AU - AUTHORS: Escobar-Fabio-Antonio-Gil

AF - AUTHOR AFFILIATION: University of Medellin, Faculty of Civil Engineering, Medellin, Colombia

BK - BOOK TITLE: In: Pacific rocks 2000; "rock around the rim".

BA - BOOK AUTHORS: Girard-Jami-M (editor); Liebman-Mark (editor); Breeds-Christopher-D (editor); Doe-Thomas (editor)

SO - SOURCE: Proceedings of the ... North American Rock Mechanics Symposium. 4; Pages 1017-1026. 2000.

PB - PUBLISHER: A. A. Balkema. Rotterdam, Netherlands. 2000.

CP - COUNTRY OF PUBLICATION: Netherlands

PY - PUBLICATION YEAR: 2000

CN - CONFERENCE INFORMATION: Fourth North American rock mechanics symposium. Seattle, WA, United States. July 31-Aug. 3, 2000.

LA - LANGUAGE: English

DE - DESCRIPTORS: Abejorral-Deposit; Andes-; anisotropy-; Central-Cordillera; Colombia-; design-; discontinuities-; El-Toro-Mine; equations-; foliation-; heterogeneity-; marbles-; metamorphic-rocks; mines-; rock-mechanics; schistosity-; South-America; structural-analysis; style-; underground-installations