No. Registros Solicitud 1 5614 colombia

AF - AUTHOR AFFILIATION: Los Alamos National Laboratory, Isotope and Nuclear Chemistry Division, Los Alamos, NM, United States

SO - SOURCE: Earth and Planetary Science Letters. 117; 1-2, Pages 189-204. 1993.

PB - PUBLISHER: Elsevier. Amsterdam, Netherlands. 1993.

RP - RESEARCH PROGRAM: DSDP (Deep Sea Drilling Project | ODP (Ocean Drilling Program | USGSOP (Non-USGS publications with USGS authors)

CP - COUNTRY OF PUBLICATION: Netherlands

PY - PUBLICATION YEAR: 1993

LA - LANGUAGE: English

AB - ABSTRACT: Elemental abundances have been measured by neutron activation methods across the Cenomanian-Turonian (late Cretaceous) extinction interval in samples collected from sixteen sites in the Western Interior Basin of North America and from twelve widely separated locations around the globe, including six ODP/DSDP sites. In most Western Interior Basin sites, in Colombia, and in western Europe (weaker), two closely spaced elemental abundance peaks occur in the upper Cenomanian ( approximately 92 m.y.), spanning the ammonite zones of Sciponoceras gracile through Neocardioceras juddii. Elements with anomalously high concentrations include Sc, Ti, V, Cr, Mn, Co, Ni, Ir, Pt and Au. The lower peak coincides with the disappearance (extinction) of the foraminifer Rotalipora cushmani. In North American sections R. greenhornensis also disappears at or just below this horizon, but in Europe it disappears considerably earlier than R. cushmani. A series of molluscan extinction and speciation or migration events also begins near the stratigraphic level of the lower elemental abundance peak. The well-documented positive delta (super 13) C excursion begins just before the extinctions and the elemental anomalies, and continues into the lower Turonian, well above the upper anomaly. This carbon isotope excursion has been observed in East European sections where we find little or no evidence of the elemental anomalies, suggesting that the two phenomena may not be tightly coupled. Elemental abundance ratios in the anomalies closely resemble those of Mid-Atlantic Ridge basalt or Hawaiian lava (tholeiitic), but not those of C1 chondrite, black shale, average crustal rocks, or lamproite and kimberlite of roughly similar age in southeastern Kansas. The excess Ir and other siderophiles hint at possible large-body impact(s) for the source. However, we have not located microspherules (other than biogenic calcispheres) or shocked mineral grains in any of our samples. Furthermore, Sc, Ti, V and Mn are not enriched in differentiated Solar-System bodies. Although the weak geochemical signal from comet impact(s) could be masked by the strong terrestrial-like overprint, these anomalies more likely resulted either from intense seafloor spreading activity or merely from increased circulation of deep, metal-rich water associated with the large late Cenomanian through early Turonian eustatic rise and deep-water opening of the South Atlantic. The flooding of continental seaways and margins also could have contributed to the anomalies by preventing much continental detritus from diluting the normal background marine geochemical component.

DE - DESCRIPTORS: Ammonoidea-; Atlantic-Ocean; Beachy-Head; C-13-C-12; carbon-; Caribbean-Sea; Cenomanian-; Central-Europe; Cephalopoda-; Chispa-Summit; chromium-; cobalt-; Colombia-; cores-; Cretaceous-; Deep-Sea-Drilling-Project; distribution-; DSDP-Site-367; Eastbourne-England; England-; Europe-; eustacy-; extinction-; Foraminifera-; geochemical-anomalies; gold-; Great-Britain; Indian-Ocean; Invertebrata-; iridium-; isotopes-; Leg-41; lower-Turonian; manganese-; Mesozoic-; metals-; microfossils-; Mollusca-; neutron-activation-analysis-data; nickel-; North-America; North-American-Atlantic; North-Atlantic; Ocean-Drilling-Program; Pacific-Ocean; paleo-oceanography; platinum-; platinum-group; Poland-; Protista-; rare-earths; scandium-; sea-floor-spreading; South-America; stable-isotopes; stratigraphic-boundary; stratigraphy-; Tetrabranchiata-; Texas-; titanium-; Turonian-; United-Kingdom; United-States; upper-Cenomanian; Upper-Cretaceous; vanadium-; Western-Europe; Western-Interior

CC - CATEGORY CODES: 02C-Geochemistry-of-rocks,-soils,-and-sediments; 12-Stratigraphy

DT - DOCUMENT TYPE: Serial

BL - BIB LEVEL: Analytic

IL - ILLUSTRATION: Refs: 51; illus. incl. strat. cols., 1 table, sketch maps.

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

IS - ISSN: 0012-821X

CO - CODEN: EPSLA2

AN - ACCESSION NUMBER: 1993-023054

UD - UPDATE CODE: 1993

Registro 5067 de 5614 - GeoRef Disc 4: 1993-1996

TI - TITLE: Late Quaternary vegetation history and paleoecology of Laguna Pedro Palo (subandean forest belt, Eastern Cordillera, Colombia).

AU - AUTHORS: Hooghiemstra-Henry; van-der-Hammen-Thomas

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

SO - SOURCE: Review of Palaeobotany and Palynology. 77; 3-4, Pages 235-262. 1993.

PB - PUBLISHER: Elsevier. Amsterdam, Netherlands. 1993.

CP - COUNTRY OF PUBLICATION: Netherlands

PY - PUBLICATION YEAR: 1993

LA - LANGUAGE: English

AB - ABSTRACT: Laguna Pedro Palo is situated on a saddle at ca. 2000 m altitude in the subandean forest belt on the western slope of the Eastern Cordillera of Colombia. Three pollen records from the site show the vegetation history and paleoclimatological sequence since ca. 13,000 BP. The pollen records were correlated on the basis of radiocarbon-dated horizons (11,950+ or -100, 11,380+ or -130, 10,380+ or -90, and 10,280+ or -90 yr BP) and palynostratigraphy. Almost no palynological data are available from the subandean forest belt during glacial conditions. Most important is the direct evidence that the upper Andean forest line shifted to below 2000 m alt. during glacial conditions, providing evidence of a glacial forest line depresssion of ca. 1400 m and an inferred temperature depression of ca. 8 degrees C. During the early Late Glacial (or Pleniglacial-Late Glacial transition) under dry climatic conditions, (sub)andean (semi-)open dry vegetation was locally in contact with dry paramo vegetation and a proper Andean forest belt was apparently absent. Open shrubparamo and grassparamo vegetation surrounded the lake at 2000 m alt. Subsequently patches of Andean forest reached closer to the area, indicating gradually less dry conditions shortly before 12,000 yr BP. During the Guantiva interstadial (ca. 12,000-11,000 yr BP) a well-developed Andean forest belt occurred from ca. 1800 to 2800 m alt. consisting of mainly Quercus forest and Weinmannia forest. Climatic conditions were cool temperate and more humid than before the Guantiva interstadial. Alnus carr vegetation occurred around the lake. During the next El Abra stadial (ca. 11,000-10,150 yr BP) a cooler climate (-3 degrees C) is indicated by a lowering of the upper Andean forest line by ca. 500 m from its position during the Guantiva interstadial. Carr vegetation of Alnus diminished and disappeared at the end of the El Abra stadial, an approximate time-equivalent of the Younger Dryas event. Subsequently the upper Andean and subandean forest lines reached Holocene elevations, ca. 3300 and 2400 m, respectively. First a massive increase of Cecropia, a pioneer tree, and shortly later Acalypha and Alchornea dominated the pollen spectra of the subandean forest belt. In the Andean forest belt Quercus and Weinmannia forest types dominated with important contributions of Hedyosmum, Ilex, Juglans, Miconia, Urticaceae and Brunellia. A Late Holocene pollen record shows a phase showing human disturbance of the forest belt. Agricultural activity is indicated by relative high percentages of Gramineae and Chenopodiaceae followed by a possible forest succession phase in which Cecropia played a major part. Finally a "post-conquest" phase (after ca. 1500 AD) is registered, shown by relative high percentages of Gramineae and Rumex acetosella.

DE - DESCRIPTORS: Andes-; Cenozoic-; Colombia-; Eastern-Cordillera; Laguna-Pedro-Palo; microfossils-; miospores-; paleoecology-; palynomorphs-; pollen-; pollen-analysis; Quaternary-; South-America; upper-Quaternary; vegetation-

CC - CATEGORY CODES: 24-Quaternary-geology

DT - DOCUMENT TYPE: Serial

BL - BIB LEVEL: Analytic

IL - ILLUSTRATION: Refs: 35; illus. incl. 2 tables, sects.

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: 1993-024342

UD - UPDATE CODE: 1993

Registro 5068 de 5614 - GeoRef Disc 4: 1993-1996

TI - TITLE: Late Pliocene paleoecology of the Guasca Valley (Cordillera Oriental, Colombia).

AU - AUTHORS: Wijninga-V-M; Kuhry-P

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

SO - SOURCE: Review of Palaeobotany and Palynology. 78; 1-2, Pages 69-127. 1993.

PB - PUBLISHER: Elsevier. Amsterdam, Netherlands. 1993.

CP - COUNTRY OF PUBLICATION: Netherlands

PY - PUBLICATION YEAR: 1993

LA - LANGUAGE: English

AB - ABSTRACT: Organic-rich layers intercalated in a Late Pliocene fluvial-lacustrine sediment sequence located at 2650 m elevation in the Guasca Valley (high plain of Bogota, Cordillera Oriental, Colombia) were analysed for plant micro- and macrofossils. Paleoenvironmental reconstructions indicate that a subandean forest (lower montane), at present found from 1000-2300 m alt., was prevalent in the area at that time. This subandean forest showed marked changes in its floristic composition. Several recorded forest taxa, such as Alchornea, Eugenia, Ilex, Myrica, Myrsine, are adapted to disturbance. Alternation of aquatic and paludal environments based on lithology and paleovegetation, shows that local conditions in the marginal areas of the basin were affected by major water level fluctuations. These dynamic conditions were most probably associated with the initial stage of development of the large tectonic-sedimentary basin of Bogota near the end of the final uplift of the Cordillera Oriental. Sixty-three plant macrofossil types were recognized new for the study area, including leaves, fruits, seeds and bryophytes, and are described and illustrated.

DE - DESCRIPTORS: Alchornea-; Andes-; Angiospermae-; biostratigraphy-; Cenozoic-; Colombia-; Dicotyledoneae-; Eastern-Cordillera; Eugenia-; Guasca-Valley; Ilex-; leaves-; microfossils-; miospores-; morphology-; Myrica-; Myrsine-; Neogene-; paleoecology-; palynomorphs-; Plantae-; Pliocene-; pollen-; pollen-analysis; South-America; Spermatophyta-; taxonomy-; Tertiary-; upper-Pliocene

CC - CATEGORY CODES: 12-Stratigraphy

DT - DOCUMENT TYPE: Serial

BL - BIB LEVEL: Analytic

IL - ILLUSTRATION: Refs: 65; illus. incl. 2 tables, sects.

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: 1993-024767

UD - UPDATE CODE: 1993

Registro 5069 de 5614 - GeoRef Disc 4: 1993-1996

TI - TITLE: Application of process mineralogy to Tertiary gold-quartz vein mineralizations, southern Cordillera Occidental, Colombia, S.A.

AU - AUTHORS: Gobel-Volker-W; Baum-Wolfgang

AF - AUTHOR AFFILIATION: Stephen F. Austin State University, Department of Geology, Nacogdoches, TX, United States

BK - BOOK TITLE: In: Geological Society of America, North-Central Section, 27th annual meeting.

BA - BOOK AUTHORS: Anonymous

SO - SOURCE: Abstracts with Programs - Geological Society of America. 25; 3, Pages 21. 1993.

PB - PUBLISHER: Geological Society of America (GSA). Boulder, CO, United States. 1993.

CP - COUNTRY OF PUBLICATION: United-States

PY - PUBLICATION YEAR: 1993

CN - CONFERENCE INFORMATION: Geological Society of America, North-Central Section, 27th annual meeting. Rolla, MO, United States. March 29-30, 1993.

LA - LANGUAGE: English

DE - DESCRIPTORS: Andes-; Cenozoic-; Colombia-; diorites-; geological-methods; gold-ores; hydrothermal-alteration; hydrothermal-processes; igneous-rocks; intrusions-; metal-ores; metasomatism-; mineral-exploration; mineralization-; plutonic-rocks; polymetallic-ores; South-America; sulfides-; Tertiary-; tonalite-; veins-; Western-Cordillera

CC - CATEGORY CODES: 27A-Economic-geology,-geology-of-ore-deposits

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: 1993-026762

UD - UPDATE CODE: 1993

Registro 5070 de 5614 - GeoRef Disc 4: 1993-1996

TI - TITLE: The hydrothermal system of Volcan Purace, Colombia.

AU - AUTHORS: Sturchio-Neil-C; Williams-Stanley-N; Sano-Yuji

AF - AUTHOR AFFILIATION: Argonne National Laboratory, Argonne, IL, United States

SO - SOURCE: Bulletin of Volcanology. 55; 4, Pages 289-296. 1993.

PB - PUBLISHER: Springer International [for the] International Association of Volcanology and Chemistry of the Earth's Interior (IAVCEI). Heidelberg, International. 1993.

CP - COUNTRY OF PUBLICATION: International

PY - PUBLICATION YEAR: 1993

LA - LANGUAGE: English

DE - DESCRIPTORS: Colombia-; D-H; eruptions-; geothermal-systems; He-4-He-3; helium-; hydrogen-; isotope-ratios; isotopes-; noble-gases; Popayan-Colombia; Purace-; Sierra-Nevada-de-Coconucos; South-America; stable-isotopes; sulfur-; volcanoes-; volcanology-

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

DT - DOCUMENT TYPE: Serial

BL - BIB LEVEL: Analytic

MC - MAP COORDINATES: LAT: N022000; N022000; LONG: W0762500; W0762500.

IL - ILLUSTRATION: Refs: 36; illus. incl. 4 tables, sketch map.

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

IS - ISSN: 0258-8900

CO - CODEN: BUVOEW

AN - ACCESSION NUMBER: 1993-027069

UD - UPDATE CODE: 1993

Registro 5071 de 5614 - GeoRef Disc 4: 1993-1996

TI - TITLE: Galeras Volcano; international workshop and eruption.

AU - AUTHORS: Munoz-F-A; Calvache-M-L; Cortes-G-P; Gomez-M-D; Narvaez-L; Ordonez-M; Ortega-A; Torres-R; Silva-B; Williams-S-N; Sanders-C-O; Stix-J

AF - AUTHOR AFFILIATION: INGEOMINAS, Observatorio Vulcanologico de Pasto, Pasto, Colombia

SO - SOURCE: Eos, Transactions, American Geophysical Union. 74; 26, Pages 281, 286-287. 1993.

PB - PUBLISHER: American Geophysical Union. Washington, DC, United States. 1993.

CP - COUNTRY OF PUBLICATION: United-States

PY - PUBLICATION YEAR: 1993

LA - LANGUAGE: English

DE - DESCRIPTORS: Andes-; ash-falls; Colombia-; eruptions-; explosive-eruptions; Galeras-; gases-; geologic-hazards; lava-; Office-of-National-Disaster-Prevention; Pasto-Colombia; seismicity-; South-America; southwestern-Colombia; stratovolcanoes-; volcanic-ash; volcanoes-; volcanology-; vulcanian-type-eruptions

CC - CATEGORY CODES: 24-Quaternary-geology; 22-Environmental-geology

DT - DOCUMENT TYPE: Serial

BL - BIB LEVEL: Analytic

MC - MAP COORDINATES: LAT: N011400; N011400; LONG: W0772200; W0772200.

IL - ILLUSTRATION: Refs: 9; illus. incl. geol. sketch maps.

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

IS - ISSN: 0096-3941

CO - CODEN: EOSTAJ

AN - ACCESSION NUMBER: 1993-027706

UD - UPDATE CODE: 1993

Registro 5072 de 5614 - GeoRef Disc 4: 1993-1996

TI - TITLE: Submarine fan and channel levee deposits in the Lower Cretaceous Bogota Trough, Colombian Andes.

AU - AUTHORS: Pimpirev-Christo; Sarmiento-Gustavo

AF - AUTHOR AFFILIATION: Sofia University, Department of Geology, Sofia 1000, Bulgaria

SO - SOURCE: Sedimentary Geology. 86; 3-4, Pages 229-246. 1993.

PB - PUBLISHER: Elsevier. Amsterdam, Netherlands. 1993.

CP - COUNTRY OF PUBLICATION: Netherlands

PY - PUBLICATION YEAR: 1993

LA - LANGUAGE: English

AB - ABSTRACT: Bogota trough in the Cordillera Oriental of Colombia was an elongate NE/SW oriented Lower Cretaceous basin. It was one of the main depocentres in the northern Andes during earliest Cretaceous time. Six lithofacies and three facies associations are recognised, based on four detailed stratigraphic sections situated in the western portion of the trough. Sedimentation in the basin comprised channel levee, fan lobe and outer fan-basin plain (?) depositional environments. Channel-levee complexes without a well-developed fan-growth pattern were more proximal to the sediment supply. In more distal settings, the migrating channels evolved into suprafan lobes. Their sediments were covered by outer fan-basin plain (?) deposits at a time of retrogradation of the fan system. The evolution in the basin continued with progradation and development of depositional lobes and channel-fill middle fan environments. The western portion of the trough was situated near to the zone of convergence between the Nazca and the South American plates and the main sediment supply derived from the Paleo-central Cordillera, which in early Cretaceous time consisted of an uplifted Jurassic plutonic arc. This active margin defined the coexistence of small sand-rich radial fans and channel-levee complexes. In the eastern portion of the basin main source area, the stable Guayana shield determined the existence of a larger fan system of a hybrid type between radial and elongate fans. Despite the differences between the two fan systems in eastern and western portions of the trough, the observed retrogradational and progradational sequences are similar.

DE - DESCRIPTORS: Andes-; Bogota-Colombia; Bogota-Trough; braided-streams; channels-; Colombia-; Cretaceous-; depositional-environment; Eastern-Cordillera; Guyana-Shield; levees-; lithofacies-; Lower-Cretaceous; Mesozoic-; Nazca-Plate; Pacific-Ocean; paleogeography-; plate-convergence; plate-tectonics; South-America; South-American-Plate; streams-; submarine-fans; turbidite-; uplifts-

CC - CATEGORY CODES: 06A-Sedimentary-petrology

DT - DOCUMENT TYPE: Serial

BL - BIB LEVEL: Analytic

IL - ILLUSTRATION: illus. incl. strat. cols., geol. sketch maps.

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

IS - ISSN: 0037-0738

CO - CODEN: SEGEBX

AN - ACCESSION NUMBER: 1993-027715

UD - UPDATE CODE: 1993

Registro 5073 de 5614 - GeoRef Disc 4: 1993-1996

TI - TITLE: Wall rock alteration of the El Roble ore deposit, Colombia.

AU - AUTHORS: Ichikawa-Miake; Mariko-Tadashi

AF - AUTHOR AFFILIATION: Waseda University, Tokyo, Japan

BK - BOOK TITLE: In: Abstracts of papers presented at the annual meeting of Japanese Association of Mineralogists, Petrologists and Economic Geologists.

BA - BOOK AUTHORS: Anonymous

SO - SOURCE: Ganko = Journal of Mineralogy, Petrology and Economic Geology. 88; 4, Pages 218-219. 1993.

PB - PUBLISHER: Nippon Ganseki Kobutsu Kosho Gakkai, c/o: Tohoku Daigaku Rigakubu. Sendai, Japan. 1993.

CP - COUNTRY OF PUBLICATION: Japan

PY - PUBLICATION YEAR: 1993

CN - CONFERENCE INFORMATION: Annual meeting of Japanese Association of Mineralogists, Petrologists and Economic Geologists. JPN, Japan, 19??.

LA - LANGUAGE: Japanese

DE - DESCRIPTORS: Colombia-; copper-ores; El-Roble-Deposit; hydrothermal-alteration; hydrothermal-processes; massive-deposits; metal-ores; metamorphism-; metasomatism-; South-America; wall-rock-alteration

CC - CATEGORY CODES: 27A-Economic-geology,-geology-of-ore-deposits

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

BL - BIB LEVEL: Analytic

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

IS - ISSN: 0914-9783

CO - CODEN: GKKGA2

AN - ACCESSION NUMBER: 1993-029591

UD - UPDATE CODE: 1993

Registro 5074 de 5614 - GeoRef Disc 4: 1993-1996

BK - BOOK TITLE: Systematics, biostratigraphy, and dental evolution of the Palaeothentidae, later Oligocene to early-middle Miocene (Deseadan-Santacrucian) caenolestoid marsupials of South America.

BA - BOOK AUTHORS: Bown-Thomas-M; Fleagle-John-G

BF - BOOK AUTHOR AFFILIATION: U. S. Geological Survey, Denver, CO, United States; State University of New York-Stony Brook, United States

SO - SOURCE: Memoir - Paleontological Society. 29; 1993.

NT - NOTES: J. Paleontol., Vol. 67, Suppl. to No. 2; Part II of II

PB - PUBLISHER: Paleontological Society. [Bridgewater, MA], United States. Pages: 76. 1993.

RP - RESEARCH PROGRAM: USGSOP (Non-USGS publications with USGS authors)

CP - COUNTRY OF PUBLICATION: United-States

PY - PUBLICATION YEAR: 1993

LA - LANGUAGE: English

LS - LANGUAGE OF SUMMARY: Spanish

DE - DESCRIPTORS: Acdestinae-; Argentina-; biologic-evolution; biostratigraphy-; Bolivia-; Cenozoic-; Chile-; Chordata-; cladistics-; Colombia-; lower-Miocene; Mammalia-; Marsupialia-; Metatheria-; middle-Miocene; Miocene-; Neogene-; new-taxa; Oligocene-; Palaeothentes-; Palaeothentidae-; Palaeothentinae-; Paleogene-; Patagonia-; phylogeny-; Pinturas-Formation; reconstruction-; Santa-Cruz-Formation; South-America; southern-Argentina; spatial-distribution; taxonomy-; teeth-; temporal-distribution; Tertiary-; Tetrapoda-; Theria-; upper-Oligocene; Vertebrata-

CC - CATEGORY CODES: 11-Vertebrate-paleontology; 12-Stratigraphy

DT - DOCUMENT TYPE: Serial

BL - BIB LEVEL: Monograph

IL - ILLUSTRATION: Refs: 90; illus. incl. strat. cols., 16 tables, sketch maps.

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

IS - ISSN: 0078-8597

CO - CODEN: PSMECR

AN - ACCESSION NUMBER: 1993-031595

UD - UPDATE CODE: 1993

Registro 5075 de 5614 - GeoRef Disc 4: 1993-1996

TI - TITLE: Structure of the Eastern Cordillera of Colombia; implications for trap styles and regional tectonics.

AU - AUTHORS: Dengo-Carlos-A; Covey-Michael-C

AF - AUTHOR AFFILIATION: Exxon Production Research Company, Houston, TX, United States

SO - SOURCE: AAPG Bulletin. 77; 8, Pages 1315-1337. 1993.

PB - PUBLISHER: American Association of Petroleum Geologists. Tulsa, OK, United States. 1993.

CP - COUNTRY OF PUBLICATION: United-States

PY - PUBLICATION YEAR: 1993

LA - LANGUAGE: English

DE - DESCRIPTORS: Andes-; basement-; Benioff-zone; Bolivar-Anticline; Cenozoic-; Colombia-; compression-tectonics; Cretaceous-; crustal-shortening; deformation-; Eastern-Cordillera; evolution-; faults-; geophysical-profiles; lithostratigraphy-; low-angle-faults; Magdalena-Basin; Mesozoic-; Neogene-; petroleum-; petroleum-exploration; Pleistocene-; Pliocene-; possibilities-; Quaternary-; reverse-faults; seismic-profiles; South-America; Tasco-Anticline; tectonics-; Tertiary-; thrust-faults; traps-; uplifts-; Upper-Cretaceous

CC - CATEGORY CODES: 16-Structural-geology; 29A-Economic-geology,-geology-of-energy-sources

DT - DOCUMENT TYPE: Serial

BL - BIB LEVEL: Analytic

MC - MAP COORDINATES: LAT: N040000; N070000; LONG: W0720000; W0750000.

IL - ILLUSTRATION: Refs: 50; illus. incl. chart, sects., geol. sketch maps.