No. Registros Solicitud 1 5614 colombia



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SO - SOURCE: Abstracts with Programs - Geological Society of America. 26; 4, Pages 6. 1994.

PB - PUBLISHER: Geological Society of America (GSA). Boulder, CO, United States. 1994.

CP - COUNTRY OF PUBLICATION: United-States

PY - PUBLICATION YEAR: 1994

CN - CONFERENCE INFORMATION: Geological Society of America, Southeastern Section, 43rd annual meeting. Blacksburg, VA, United States. April 7-8, 1994.

LA - LANGUAGE: English

DE - DESCRIPTORS: Andes-; Appalachians-; applications-; cartography-; Colombia-; computer-programs; cross-sections; data-processing; digital-cartography; geologic-maps; graphic-display; interactive-techniques; mapping-; maps-; North-America; Northern-Andes; South-America; tectonics-

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.

IS - ISSN: 0016-7592

CO - CODEN: GAAPBC

AN - ACCESSION NUMBER: 1994-040039

UD - UPDATE CODE: 199419

Registro 4908 de 5614 - GeoRef Disc 4: 1993-1996

TI - TITLE: Depositional systems of Cycle VI M in Helang and Layang structures, offshore Sarawak, East Malaysia.

AU - AUTHORS: Taha-Mohamed; Kitagawa-Hideki

AF - AUTHOR AFFILIATION: Schlumberger Surenco, Bogota, Colombia

BK - BOOK TITLE: In: AAPG international conference and exhibition; abstracts.

BA - BOOK AUTHORS: Anonymous

SO - SOURCE: AAPG Bulletin. 78; 7, Pages 1165. 1994.

PB - PUBLISHER: American Association of Petroleum Geologists. Tulsa, OK, United States. 1994.

CP - COUNTRY OF PUBLICATION: United-States

PY - PUBLICATION YEAR: 1994

CN - CONFERENCE INFORMATION: AAPG international conference and exhibition. Kuala Lumpur, Malaysia. Aug. 21-24, 1994.

LA - LANGUAGE: English

DE - DESCRIPTORS: Asia-; bedforms-; biogenic-structures; bioturbation-; boreholes-; Borneo-; clastic-rocks; clastic-sediments; coastal-environment; cycles-; deposition-; depositional-environment; East-Malaysia; Far-East; Helang-well; Layang-well; lithofacies-; low-energy-environment; Malay-Archipelago; Malaysia-; marine-environment; offshore-; progradation-; retrogradation-; sand-; Sarawak-Malaysia; sea-level-changes; sedimentary-rocks; sedimentary-structures; sediments-; shells-; siltstone-; storm-environment; transgression-; well-logs; wells-

CC - CATEGORY CODES: 06A-Sedimentary-petrology

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

BL - BIB LEVEL: Analytic

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

IS - ISSN: 0149-1423

CO - CODEN: AABUD2

AN - ACCESSION NUMBER: 1994-040704

UD - UPDATE CODE: 199419

Registro 4909 de 5614 - GeoRef Disc 4: 1993-1996

TI - TITLE: Paleoclimatic conditions around 3 million years BP; pollen evidence from Colombia.

AU - AUTHORS: Hooghiemstra-Henry

AF - AUTHOR AFFILIATION: University of Amsterdam, Amsterdam, Netherlands

BK - BOOK TITLE: In: Pliocene terrestrial environments and data/ model comparisons.

BA - BOOK AUTHORS: Thompson-Robert-S (editor)

SO - SOURCE: Open-File Report - U. S. Geological Survey. Pages 31-37. 1994.

PB - PUBLISHER: U. S. Geological Survey. Reston, VA, United States. 1994.

RP - RESEARCH PROGRAM: USGS (Publications of the U. S. Geological Survey)

CP - COUNTRY OF PUBLICATION: United-States

PY - PUBLICATION YEAR: 1994

CN - CONFERENCE INFORMATION: Workshop on Pliocene terrestrial environments and data/model comparisons. Herndon, VA, United States. May 22-23, 1993.

LA - LANGUAGE: English

DE - DESCRIPTORS: Andes-; Bogota-Basin; Cenozoic-; Colombia-; Eastern-Cordillera; microfossils-; Neogene-; paleoclimatology-; paleoecology-; palynomorphs-; Pleistocene-; Pliocene-; pollen-diagrams; Quaternary-; South-America; terrestrial-environment; Tertiary-; upper-Pliocene; USGS-

CC - CATEGORY CODES: 12-Stratigraphy; 24-Quaternary-geology

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

BL - BIB LEVEL: Analytic

IL - ILLUSTRATION: Refs: 8; charts, sketch map.

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

IS - ISSN: 0196-1497

CO - CODEN: XGROAG

RN - REPORT NUMBER: OF 94-0023

AV - AVAILABILITY: U. S. Geol. Surv., Denver, CO, United States

UR - URL: http://geochange.er.usgs.gov/pub/PRISM/OFR_94-23/OFR_94-23.html

AN - ACCESSION NUMBER: 1994-041233

UD - UPDATE CODE: 199419

Registro 4910 de 5614 - GeoRef Disc 4: 1993-1996

TI - TITLE: Post-eruptive ice-mass losses on the Nevado del Ruiz, Colombia.

AU - AUTHORS: Linder-Wilfried; Jordan-Ekkehard; Christke-Kornelia

AF - AUTHOR AFFILIATION: Univ. Duesseldorf, Geogr. Inst., Duesseldorf, Federal Republic of Germany

BK - BOOK TITLE: In: 13. symposium on Latin-American geosciences.

BA - BOOK AUTHORS: Miller-H (editor); Rosenfeld-U (editor); Weber-Diefenbach-K (editor)

SO - SOURCE: Zentralblatt fuer Geologie und Palaeontologie, Teil I: Allgemeine, Angewandte, Regionale und Historische Geologie. 1993; 1-2, Pages 479-484. 1994.

PB - PUBLISHER: E. Schweizerbart'sche Verlagsbuchhandlung. Stuttgart, Federal Republic of Germany. 1994.

CP - COUNTRY OF PUBLICATION: Federal-Republic-of-Germany

PY - PUBLICATION YEAR: 1994

CN - CONFERENCE INFORMATION: Geowissenschaftliches Lateinamerika-Kolloquium 13. Munster, Federal Republic of Germany. Nov. 18, 1992.

LA - LANGUAGE: English

LS - LANGUAGE OF SUMMARY: German; Spanish

DE - DESCRIPTORS: aerial-photography; Cenozoic-; Colombia-; deglaciation-; eruptions-; glacial-geology; glaciation-; glaciers-; Holocene-; mass-balance; Nevado-del-Ruiz; Quaternary-; remote-sensing; South-America; volcanoes-; volcanology-

CC - CATEGORY CODES: 24-Quaternary-geology

DT - DOCUMENT TYPE: Serial; Conference-Document

BL - BIB LEVEL: Analytic

IL - ILLUSTRATION: Refs: 7; 1 table, geol. sketch maps.

RF - REFERENCE SOURCE: GeoRef, Copyright 2000, American Geological Institute. Reference includes data from Geoline, Bundesanstalt fur Geowissenschaften und Rohstoffe, Hanover, Germany

IS - ISSN: 0340-5109

CO - CODEN: ZGPAAK

AN - ACCESSION NUMBER: 1994-043382

UD - UPDATE CODE: 199420

Registro 4911 de 5614 - GeoRef Disc 4: 1993-1996

TI - TITLE: The tectono-magmatic evolution of northwestern South America.

AU - AUTHORS: Tistl-Michael; Salazar-S-Gabriel

AF - AUTHOR AFFILIATION: Ostpreussendamm 182 B, Berlin, Federal Republic of Germany

BK - BOOK TITLE: In: 13. symposium on Latin-American geosciences.

BA - BOOK AUTHORS: Miller-H (editor); Rosenfeld-U (editor); Weber-Diefenbach-K (editor)

SO - SOURCE: Zentralblatt fuer Geologie und Palaeontologie, Teil I: Allgemeine, Angewandte, Regionale und Historische Geologie. 1993; 1-2, Pages 439-453. 1994.

PB - PUBLISHER: E. Schweizerbart'sche Verlagsbuchhandlung. Stuttgart, Federal Republic of Germany. 1994.

CP - COUNTRY OF PUBLICATION: Federal-Republic-of-Germany

PY - PUBLICATION YEAR: 1994

CN - CONFERENCE INFORMATION: Geowissenschaftliches Lateinamerika-Kolloquium 13. Munster, Federal Republic of Germany. Nov. 18, 1992.

LA - LANGUAGE: English

LS - LANGUAGE OF SUMMARY: German; Spanish

DE - DESCRIPTORS: accretion-; Alpine-Orogeny; Andes-; calc-alkalic-composition; Caribbean-Plate; Caribbean-region; Cenozoic-; Colombia-; Cretaceous-; Ecuador-; faults-; igneous-rocks; island-arcs; Mesozoic-; ophiolite-; orogeny-; plate-collision; plate-tectonics; plutonic-rocks; South-America; South-American-Plate; strike-slip-faults; subduction-; Tertiary-; ultramafics-; Upper-Cretaceous; Western-Cordillera

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

DT - DOCUMENT TYPE: Serial; Conference-Document

BL - BIB LEVEL: Analytic

IL - ILLUSTRATION: geol. sketch maps.

RF - REFERENCE SOURCE: GeoRef, Copyright 2000, American Geological Institute. Reference includes data from Geoline, Bundesanstalt fur Geowissenschaften und Rohstoffe, Hanover, Germany

IS - ISSN: 0340-5109

CO - CODEN: ZGPAAK

AN - ACCESSION NUMBER: 1994-043385

UD - UPDATE CODE: 199420

Registro 4912 de 5614 - GeoRef Disc 4: 1993-1996

TI - TITLE: Late and middle Pleistocene climatic change and forest development in Colombia; pollen record Funza II (2-158 m core interval).

AU - AUTHORS: Hooghiemstra-Henry; Ran-Eva-T-H

AF - AUTHOR AFFILIATION: University of Amsterdam, Hugo de Vries Laboratory, Amsterdam, Netherlands

BK - BOOK TITLE: In: Pollen and climate.

BA - BOOK AUTHORS: Bonnefille-Raymonde (editor); Hooghiemstra-Henry (editor)

SO - SOURCE: Palaeogeography, Palaeoclimatology, Palaeoecology. 109; 2-4, Pages 211-246. 1994.

PB - PUBLISHER: Elsevier. Amsterdam, Netherlands. 1994.

RP - RESEARCH PROGRAM: ODP (Ocean Drilling Program)

CP - COUNTRY OF PUBLICATION: Netherlands

PY - PUBLICATION YEAR: 1994

CN - CONFERENCE INFORMATION: 8th international palynological conference on Pollen and climate. Aix-en-Provence, France. Sept. 6-12, 1992.

LA - LANGUAGE: English



AB - ABSTRACT: A 586 m long core, Funza II, was recovered from the lake sediments of the high plain of Bogota (Eastern Cordillera, Colombia, 2550 m alt.), which represent the bottom of a drained lake. Results of the palynological analysis of the interval 2-158 m with sample distances of 1 m are presented. Time control of the Funza II core is based on zircon fission-track datings of intercalated volcanic ash horizons. In addition, pollen record Funza II could be correlated in detail with pollen record Funza I, located at 1km distance. The Funza I pollen record has been graphically correlated with the oxygen isotope record of ODP Site 677 (East Pacific). Oxygen isotope stages 19.1 to 3.0 have been tentatively recognized in the pollen record, indicating that the interval 158-2 m represents approximately the period of 735-28 ka. The average calculated time resolution is 4550 yr with considerable fluctuations depending changes in accumulation rate. The interval 158-131 m core depth (estimated age 735-569 ka) shows warm climatic conditions most of the time and is tentatively correlated with the oxygen isotope stages 19.1 to 15.1. The pollen spectra have no direct modern analogues because of the absence of Quercus and related conditions. The upper forest line oscillated mainly from 2100 to 2700 m during most of the interval. The corresponding average annual temperature on the high plain is 6.5-11 degrees C. The high plain was situated in the Andean forest belt most of the time. The upper limit of the subandean forest belt (Acalypha, Alchornea) was situated some hundreds of meters below the modern elevation. Podocarpus was most important in the lower part of the Andean forest belt. Weinmannia forest, the precursor of the modern Weinmannietum, included a substantial contribution of Hedyosmum as well as lower frequencies of Myrsine (=Rapanea) and Eugenia. A type of Vallea-Miconia forest, including low frequencies of Ilex and Myrsine (=Rapanea), could have occurred on the drier parts of the high plain. The lake was shallow most of the time, with local marsh vegetation of cyperaceous reed swamp and Hydrocotyle. Myrica thickets (M. parvifolia) and Alnus carr (swamp forest) covered the wet flats around the lake. Myrica (M. pubescens) and Alnus possibly contributed also with low frequency to the zonal Andean forest belt. Dwarf forest of Polylepis, Myrica and Compositae scrub occurred at the upper forest line. The interval 131-100 m core depth (estimated age 569-350 ka) shows cold climatic conditions most of the time and is tentatively correlated with oxygen isotope stages 14.4 to 11.1. The upper forest line oscillated mainly from 1800 to 2500 m. The corresponding average temperature on the high plain is ca. 5-9.5 degrees C. The high plain was situated in the grassparamo belt most of the time. Apart from Gramineae (e.g. Calamagrostis, Chusquea) and woody stem rosettes of Espeletia (Compositae) a variety of paramo herbs (Valeriana, Caryophyllaceae, Geranium, Aragoa, Lycopodium) were present with substantial frequencies, and abundant cushion bogs of Plantago were present. The water level in the lake was high and marsh vegetation limited. Polylepis dwarf forest occurred in the subparamo belt, along with shrub of Compositae, Hypericum and Ericaceae. In the Andean forest belt Vallea-Miconia forest and Weinmannia-Hedyosmum forest were most important. The interval 100-57 m core depth (estimated age 350-186 ka) shows warm climatic conditions most of the time and is tentatively correlated with the oxygen isotope stages 10.2 to 7.1. The upper forest line oscillated from 2000 to 2600 m in the first part and from 2600 to 2900 m in the last part of this interval. The corresponding average annual temperature is 6-10 degrees and 10-12 degrees C, respectively. The high plain was in the first part of this interval most of the time situated in the paramo and in the last part of this interval in the Andean forest belt. During this interval Quercus migrated into the area of the high plain. Quercus forests occurred in a wide altitudinal range (1000-2800 m) and constituted at first local patches of forest, but at the end of this interval zonal Quercus forests were a major part of the Andean forest belt. Acalypha and Alchornea reached higher elevations in the Quercus forests, and the upper limit of subandean forest rose to modern elevations. Weinmannia dominated in the Weinmannia-Hedyosmum forest type. At the end of this interval the contribution of Vallea-Miconia forest increased markedly and replaced Weinmannia forest. Podocarpus-rich forest occurred in the lower part of the Andean forest belt. Alnus carr and Myrica thickets were abundant around the lake, which was of a shallow type. Algae (Botryococcus) became very abundant from the beginning of this interval to the top of the record. The interval 57-2 m core depth (estimated age 186-24 ka) shows for the first time in the record abundant presence of zonal Quercus forests. The composition of the Andean forest belt had changed dramatically. Based on arboreal percentages, climatic conditions seem warm most of the time, but the high frequency of Quercus, a wind-pollinated tree that produces large amounts of pollen, exaggerates real conditions. This interval is tentatively correlated with the oxygen isotope stages 6 to 3.0. The upper forest line oscillated from 2000 to 3000 m most of the time. The corresponding average annual temperature is 6-12.5 degrees C. Quercus forests, resembling the modern Saurauia-Quercus humboldtii forest, and Weinmannia-Hedyosmum forest, resembling the modern Weinmannietum, dominated in the Andean forest belt. Vallea-Miconia forest probably resembled the modern Xylosma-Duranta-Vallea forest, but the latter is palynologically difficult to recognize. Eugenia, Ilex and Myrsine (=Rapanea) contributed substantially to this rather dry forest type of low stature. Polylepis dwarf forest was frequent at the forest line and possibly also in the paramo belt up to 4000 m. Alnus carr dominated completely the flat parts of the high plain. Myrica thickets and marsh vegetation diminished in the last part of this period. Sediment accumulation was very rapid (up to 60cm per 1000 yr). Supposedly, erosion of the Tequendama Falls in the Bogota River, the only outlet of the high plain, led to the final draining of the lake between ca. 28 and 22 ka. The Andean biozones VI and VII are represented in this part of the record. Biozone VI (158-94 m core interval; estimated age 735-350 ka) is characterized by the presence of Alnus and absence of Quercus. Biozone VII (94-0 m core interval; estimated age 350-0 ka) is characterized by the presence of Alnus and Quercus, both from northern hemisphere origin.

DE - DESCRIPTORS: Andes-; Bogota-Colombia; boreholes-; Cenozoic-; changes-; Colombia-; Eastern-Cordillera; fission-track-dating; forests-; Funza-II; geochronology-; interpretation-; isotope-ratios; isotopes-; microfossils-; middle-Pleistocene; miospores-; O-18-O-16; oxygen-; paleoclimatology-; palynomorphs-; Pleistocene-; pollen-; pollen-analysis; pollen-diagrams; Quaternary-; sampling-; South-America; stable-isotopes; upper-Pleistocene; vegetation-

CC - CATEGORY CODES: 24-Quaternary-geology

DT - DOCUMENT TYPE: Serial; Conference-Document

BL - BIB LEVEL: Analytic

IL - ILLUSTRATION: Refs: 34; illus. incl. strat. cols., 2 tables, geol. sketch maps.

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

IS - ISSN: 0031-0182

CO - CODEN: PPPYAB

AN - ACCESSION NUMBER: 1994-043726

UD - UPDATE CODE: 199420

Registro 4913 de 5614 - GeoRef Disc 4: 1993-1996

TI - TITLE: Amazonia during the last glacial.

AU - AUTHORS: van-der-Hammen-Thomas; Absy-Maria-Lucia

AF - AUTHOR AFFILIATION: Corporation Araracuara, Bogota, Colombia

BK - BOOK TITLE: In: Pollen and climate.

BA - BOOK AUTHORS: Bonnefille-Raymonde (editor); Hooghiemstra-Henry (editor)

SO - SOURCE: Palaeogeography, Palaeoclimatology, Palaeoecology. 109; 2-4, Pages 247-261. 1994.

PB - PUBLISHER: Elsevier. Amsterdam, Netherlands. 1994.

CP - COUNTRY OF PUBLICATION: Netherlands

PY - PUBLICATION YEAR: 1994

CN - CONFERENCE INFORMATION: 8th international palynological conference on Pollen and climate. Aix-en-Provence, France. Sept. 6-12, 1992.

LA - LANGUAGE: English

AB - ABSTRACT: New data on the vegetational history and Quaternary geology of Amazonia permit an improved reconstruction of past environments in Amazonia during the last glacial period. Although limited, data from Rondonia, Carajas and Guyana show that, in certain areas, savanna-type vegetation and savanna forest had replaced the rain forest during the late Pleniglacial (ca. 22,000-13,000 yr B.P.). The Amazonian forest may have been split up into one major west Amazonian and several other medium-size forest areas. This suggests a decline in rainfall of 500 to 1000mm (a reduction of 25 to 40%). Temperatures may also have been 2 degrees to 6 degrees C (4+ or -2 degrees C) lower than today, possibly substancially influencing Amazonian vegetation. During the humid middle Pleniglacial (55,000-26,000 yr B.P.), rivers carried a lot of water and sediment, resulting in the deposition of lower terrace sediments with one dry interruption around 40,000 yr B.P. (Carajas and Katira). In Carajas, there is evidence of dry periods ocurring at about 40,000 yr B.P., and during the early Pleniglacial (ca. 60,000 yr B.P.). Rivers carried little water and incised into the low terrace sediments during the dry late Pleniglacial. Water levels rose during the late glacial (13,000-10,000 yr B.P.) or at the beginning of the Holocene (10,000 yr B.P.). Sedimentation in (and of) the present inundation valleys commenced after that.

DE - DESCRIPTORS: Amazon-Basin; Brazil-; Caqueta-Colombia; Carajas-Brazil; Cenozoic-; changes-; Colombia-; Ecuador-; hydrology-; interpretation-; Mera-Ecuador; microfossils-; miospores-; paleoclimatology-; palynomorphs-; Peru-; pollen-; pollen-analysis; Quaternary-; rainfall-; Rondonia-Brazil; South-America; vegetation-

CC - CATEGORY CODES: 24-Quaternary-geology

DT - DOCUMENT TYPE: Serial; Conference-Document

BL - BIB LEVEL: Analytic

IL - ILLUSTRATION: Refs: 58; illus. incl. strat. col., sketch maps.

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

IS - ISSN: 0031-0182

CO - CODEN: PPPYAB

AN - ACCESSION NUMBER: 1994-043727

UD - UPDATE CODE: 199420

Registro 4914 de 5614 - GeoRef Disc 4: 1993-1996

TI - TITLE: Origin and emplacement of Tertiary ultramafic complexes in Northwest Colombia; evidence from geochemistry and K-Ar, Sm-Nd and Rb-Sr isotopes.

AU - AUTHORS: Tistl-M; Burgath-K-P; Hoehndorf-A; Kreuzer-H; Munoz-R; Salinas-R

AF - AUTHOR AFFILIATION: Niedstrasse 22, Berlin, Federal Republic of Germany

SO - SOURCE: Earth and Planetary Science Letters. 126; 1-3, Pages 41-59. 1994.

PB - PUBLISHER: Elsevier. Amsterdam, Netherlands. 1994.

CP - COUNTRY OF PUBLICATION: Netherlands

PY - PUBLICATION YEAR: 1994

LA - LANGUAGE: English

AB - ABSTRACT: Si-undersaturated high-Mg basalts with early fractionated ultramafic cumulates (Viravira complex) and a zoned ultramafic Alaskan-type intrusion (Condoto complex) are located in the upper Condoto River within the Western Cordillera of Colombia. These complexes are related in space and time and originated from a common parental magma. The isotopic characteristics of the complexes are similar and plot close together near the mantle array in the epsilon (sub Nd) vs. epsilon (sub Sr) diagram. It is argued that the compositions of the Viravira basalts and of geochemically comparable hornblende-plagioclase dykes in the zoned complex are close to the parental melt from which both complexes derived. This melt probably had a mafic tholeiitic composition and was supplied from two sources: high-grade partial melting (20%) of moderately depleted mantle above a subduction zone (major part), and modification by a metasomatic LILE- and slightly LREE-enriched fluid which could have originated by dewatering of the subducting slab. K-Ar dates of hornblende of the Condoto complex indicate an emplacement age of about 20 Ma. This represents the youngest age on the earth of a zoned ultramafic intrusion. Textural features demonstrate that the zonal arrangement with a dunitic core was the result of a series of crystal mush intrusions of deeper seated unconsolidated cumulate fractionations. The occurrence of these (and further) ultramafic complexes along a major N-S strike-slip fault substantiates an exceptional tectonic activity on the northwestern edge of the South American continent during the Tertiary. Horizontal plate movements along the deeply penetrating fault system favoured a release of pressure, and the formation of Si-undersaturated Mg-rich melts in the mantle. High heat flow and the possibility of vertical migration allowed the intrusion of mantle-derived melts into shallow levels of the upper crust. In the Condoto region these conditions were particularly provided by the intersection of the N-S fault system with WNW-ESE trending transverse and oblique faults.

DE - DESCRIPTORS: absolute-age; amphibole-group; Andes-; Antioquia-Colombia; basalts-; Cenozoic-; chain-silicates; Choco-Colombia; clinoamphibole-; clinopyroxenite-; Colombia-; complexes-; Condoto-Complex; cumulates-; dates-; dikes-; diorites-; emplacement-; faults-; fractional-crystallization; genesis-; geochemistry-; hornblende-; hornblendite-; hornfels-; igneous-rocks; intrusions-; K-Ar; layered-intrusions; lithogeochemistry-; magmas-; metals-; metamorphic-rocks; Miocene-; Neogene-; plutonic-rocks; rare-earths; Rb-Sr; silicates-; Sm-Nd; South-America; strike-slip-faults; Tertiary-; textures-; trace-elements; ultramafics-; Viravira-Complex; volcanic-rocks; Western-Cordillera

CC - CATEGORY CODES: 02D-Isotope-geochemistry; 03-Geochronology; 05A-Igneous-and-metamorphic-petrology

DT - DOCUMENT TYPE: Serial

BL - BIB LEVEL: Analytic

MC - MAP COORDINATES: LAT: N050000; N060000; LONG: W0760000; W0770000.

IL - ILLUSTRATION: Refs: 62; illus. incl. 4 tables, geol. sketch map.

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


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