Published 2000 | Version v1
Computer medium Metadata-only

Geochronologic study of sediments deposition of two lakes from the Rio Negro basin, Amazonas State, Brazil

Creators

  • 1. Sao Carlos Univ., SP (Brazil). Dept. de Quimica. Lab. de Biogeoquimica Ambiental
  • 2. Centro de Energia Nuclear na Agricultura (CENA), Piracicaba, SP (Brazil). Lab. de Instrumentacao Nuclear
  • 3. Comissao Nacional de Energia Nuclear, Pocos de Caldas, MG (Brazil). Laboratorio

Description

Since 1963 the radionuclide 210Pb became an important tool for dating (geochronology) recent sediments (up to 120 years). In this work the sedimentary geochronology of two lakes from the Negro River Basin was determined, using different radiochemical separation methods for 210Pb and 226Ra. (author)

Part of:
Nuclear future: thinking for building. Proceedings of the 5. Brazilian national meeting on nuclear applications; 8. General congress on nuclear energy; 12. Brazilian national meeting on reactor physics and thermal hydraulics

Additional details

Additional titles

Original title (Portuguese)
Estudo geocronologico da deposicao de sedimentos de dois lagos da bacia do rio Negro/AM

Publishing Information

Imprint Title
Nuclear future: thinking for building. Proceedings of the 5. Brazilian national meeting on nuclear applications; 8. General congress on nuclear energy; 12. Brazilian national meeting on reactor physics and thermal hydraulics
Imprint Pagination
[1450 p.]
Journal Page Range
[5 p.]

Conference

Title
5. Brazilian national meeting on nuclear applications; 8. General congress on nuclear energy; 12. Brazilian national meeting on reactor physics and thermal hydraulics
Original Conference Title
5. Encontro nacional de aplicacoes nucleares
Dates
5-20 Oct 2000
Place
Rio de Janeiro, RJ (Brazil)

INIS

Country of Publication
Brazil
Country of Input or Organization
Brazil
INIS RN
34005580
Subject category
S54: ENVIRONMENTAL SCIENCES;
Resource subtype / Literary indicator
Conference, Numerical Data
Descriptors DEI
AGE ESTIMATION; EXPERIMENTAL DATA; GEOLOGIC HISTORY; ISOTOPE SEPARATION; LAKES; LEAD 210; RADIUM 226; SEDIMENTS
Descriptors DEC
ALKALINE EARTH ISOTOPES; ALPHA DECAY RADIOISOTOPES; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; CARBON 14 DECAY RADIOISOTOPES; DATA; EVEN-EVEN NUCLEI; HEAVY ION DECAY RADIOISOTOPES; HEAVY NUCLEI; INFORMATION; ISOTOPES; LEAD ISOTOPES; NUCLEI; NUMERICAL DATA; RADIOISOTOPES; RADIUM ISOTOPES; SEPARATION PROCESSES; SURFACE WATERS; YEARS LIVING RADIOISOTOPES

Optional Information

Notes
9 refs., 4 figs., 1 tab., 1 graph, 1 map Imprint:Published only in CD-Rom;Futuro nuclear: refletindo para construir. Anais do 5. Encontro nacional de aplicacoes nucleares; 8. Congresso geral de energia nuclear; 12. Encontro nacional de fisica de reatores e termo-hidraulica