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3 edition of Geology of the Venezuelan Guayana Shield at 1:500,000 scale found in the catalog.

Geology of the Venezuelan Guayana Shield at 1:500,000 scale

Paul G. Schruben

Geology of the Venezuelan Guayana Shield at 1:500,000 scale

a digital representation of maps published by the U.S. Geological Survey

by Paul G. Schruben

  • 390 Want to read
  • 5 Currently reading

Published by U.S. Geological Survey in Reston, VA .
Written in English

    Subjects:
  • Geology -- Venezuela -- Guayana Region,
  • Shields (Geology) -- Venezuela -- Guayana Region,
  • Guayana Region (Venezuela)

  • Edition Notes

    Statementby Paul G. Schruben.
    SeriesU.S. Geological Survey open-file report -- Open-file report 95-493., U.S. Geological Survey open-file report -- 95-493.
    ContributionsGeological Survey (U.S.)
    The Physical Object
    Pagination11 leaves ;
    Number of Pages11
    ID Numbers
    Open LibraryOL17517853M
    OCLC/WorldCa32784608

    Abstract: The geologic shaded relief map of Venezuela was created by direct digitization of geologic and hydrologic data north of the Orinoco River from a , scale paper map set. These data were integrated with a digital geologic map of the Venezuela Guayana Shield, also derived from , scale paper maps. Cerros de Mavecure, Guainía department, Colombia Devil's Canyon in the Canaima National Park, Venezuela Map of the Guianas The Guiana Shield [1] is one of the three cratons of the South American is a billion-year-old Precambrian geological formation in northeast South America that forms a portion of the northern coast. [2] The higher elevations on the shield .

    This page lists the professional bibliography of Jeff Wynn, Chief Scientist, Volcano Hazards Team, U. S. Geological Survey. The extensive 1,m.y.-old Parguaza intrusion in Venezuela is correlated with 1,m.y.-old basement rocks underlying the Amazon Basin in Brazil and suggests a widespread “Parguazan” event 1, to 1, m.y. ago which affected a large part of the northwestern and southern Guayana Shield, extending as far south as the Guapore craton of.

    Geography. The Sierra de Lema is geologically part of the Guayana Shield, and biogeographically part of the Guayana Highlands.. Lying north of the Gran Sabana, it marks the drainage divide between the Caroní River and Cuyuni River drainage basins. It is partly within the bounds of Canaima National Park and encompasses a number of prominent tepuis, including . Geology and mineral resource assessment of the Venezuelan Guayana Shield at , scale: a digital representation of maps published by the U.S. Geological Survey Series: U.S. Geological Survey digital data series ; DDS


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Geology of the Venezuelan Guayana Shield at 1:500,000 scale by Paul G. Schruben Download PDF EPUB FB2

The data in this CD-ROM are based on a mineral resource assessment of the Venezuelan Guayana Shield, conducted between and by the U.S. Geological Survey and Corporaci n Venezolana de Guayana, T cnica Minera, (USGS, ). The Venezuelan Shield occupies aboutsq km in the south and east part of Venezuela.

The study. Get this from a library. Geology of the Venezuelan Guayana Shield atscale: a digital representation of maps published by the U.S. Geological Survey. [Paul G Schruben; Geological Survey (U.S.)].

GEOLOGY AND RESOURCE ASSESSMENT OF THE VENEZUELAN GUAYANA SHIELD ATSCALE. A Digital Representation of Maps Published by the ical Survey. By Paul G. Schruben 1, Jeffrey C. Wynn 1, Floyd Gray 2, Dennis P. Cox 3, John H. Stewart 3, and William E. Brooks 3. Geology and resource assessment of the Venezuelan Guayana Shield atscale Metadata Updated: Janu The data in this CD-ROM are based on a mineral resource assessment of the Venezuelan Guayana Shield, conducted between and by the U.S.

Geological Survey and Corporaci n Venezolana de Guayana, T cnica. Geology and resource assessment of the Venezuelan Guayana Shield atscale. Online link: Description: The data in this CD-ROM are based on a mineral resource assessment of the Venezuelan Guayana Shield, conducted between and by the U.S.

Geological Survey and Corporaci n Venezolana de Guayana, T cnica Minera, (USGS, ). Geology and Resource Assessment of the Venezuelan Guayana Shield atscale--A Digital Representation of Maps published by the U.S. Geological Survey By Paul G.

Schruben(1), Jeffrey C. Wynn(1), Floyd Gray(2), Dennis P. Cox(3), John H. Stewart(3), and William E. Brooks(3) (1) U.S. Geological Survey National Center Sunrise. Online link: Description: Mineral resource assessment of the Venezuelan Guayana Shield, including geologic unit map.

The data in this CD-ROM are based on a mineral resource assessment of the Venezuelan Guayana Shield, conducted between and by the U.S.

Geological Survey and Corporaci—n Venezolana de Guayana, T cnica Minera, (USGS, ). The Venezuelan Shield occupies aboutsq km in the south and east part of Venezuela. The study area is. Original geology map (Plate 1) of the Venezuelan Guayana Shield.

Mapped and compiled by CVG-Tecmin and the US Geological Survey operating jointly. Includes structural, tectonic, and. Geology and mineral resource assessment of the Venezuelan Guayana Shield atscale; a digital representation of maps published by.

This CD-ROM contains vector-based digital maps of the geology and resource assessment of the Venezuela Guayana Shield originally published as paper maps in in U. Geological Survey Bulletinat a scale of million and revised in as separate maps at a scale ofAlthough the maps on this disc can be displayed at different scales, they.

1. Introduction. Although legions of books and films romanticized the Californian and Klondike gold rushes, the most productive gold mine in the world during the latter part of the 19th century was the El Callao mine of Venezuela (Sidder, ).El Callao is located within the Guayana shield of northeastern South America, a region well known for hosting rich gold.

A mineral-deposit map of the Guayana region. All these maps were first compiled atscale and were then combined atscale. They are included, along with explanatory text, in USGS Bulletin and in a new CD-ROM (U.

Geological Survey Digital Data Series DDS) recently issued by the USGS. Journal of South American Earth Sciences, Vol. 3, No. 4, pp.Printed in Great Britain /90 $ + Pergamon Press plc & Earth Sciences and Resources Institute Table-mountain geology and surficial geochemistry: Chimantfi Massif, Venezuelan Guayana Shield H.

BRICE~;OI, C. SCHUBERT2., and J. PAOLINI2 llnstituto de. Get this from a library. Geology and mineral resource assessment of the Venezuelan Guayana Shield atscale: a digital representation of maps published by the U.S. Geological Survey. [Paul G Schruben; Geological Survey (U.S.)] -- "Contains vector-based digital maps of Venezuela[n] Guayana Shield originally published as paper maps in USGS Bulletin 93.

Full-scale mining of the ore deposits began after World War II, by a conglomerate of Venezuelan firms and US steel companies. At the start in the early s, ab tons of ore-bearing soil was mined per day.

Los Pijiguaos, bauxite deposit and associated mining development, on the Pijiguaos Plateau, in western Bolívar state, Venezuela. Geophysics of the Venezuelan Guayana Shield. In: U.S. Geological Survey and Corporación Venezolana de Guayana, Técnica Minera, C.A.

(eds): Geology and mineral resource assessment of the Venezuelan Guayana Shield. U.S. Geological Survey Bulletin 17– This CD-ROM contains vector-based digital maps of the geology and resource assessment of the Venezuela Guayana Shield originally published as paper maps in in U.

Geological Survey Bulletinat a scale of million and revised in as separate maps at a scale ofAlthough the maps on this disc can be displayed at. Audio Books & Poetry Community Audio Computers, Technology and Science Music, Arts & Culture News & Public Affairs Non-English Audio Spirituality & Religion Librivox Free Audiobook Ethics of Belief, The by CLIFFORD, William Kingdon Freedom Church Messages Kings of the Hill Podcast - A Texan & Yankee talk KOTH Life Full Circle w/Miguel Lloyd How.

Abstract. The Venezuelan Guayana region is located in equatorial northeastern South America. It covers approximatelykm 2, including the second largest South American mountain system with highest elevation at 3, m a.s.l.

and several extensive lowland plains and peneplains, all in the Orinoco river nd relief consists mainly of flat-topped. The Guiana Shield occupies a broad area in the NE of South America between the Atlantic Ocean, the Amazon, and the Orinoco rivers.

Its ocean frontage, between these two rivers, is over km long, and its surface is 1, km shield straddles the equator and has a climate of equatorial type, with two dry and two rainy seasons.Geology and resource assessment of the Venezuelan Guayana Shield atscale.

Mineral resource assessment of the Venezuelan Guayana Shield, including geologic unit map. Info: Geology of the conterminous United States. A digital version of the Geologic Map of the United States, originally published at a scale of(King and.Dieter Scharffe, Wei Min Hao, Loreto Donoso, Paul J.

Crutzen, Eugenio Sanhueza, Soil fluxes and atmospheric concentration of CO and CH4 in the northern part of the Guayana Shield, Venezuela, Journal of Geophysical Research: Atmospheres, /JDiD13p, 95, D13, (), ().