Cosmogenic 3He in hematite and goethite from Brazilian "canga" duricrust demonstrates the extreme stability of these surfaces

Earth and Planetary Science Letters

Volumn 329-330, Issue , 2012, Pages 41-50

  Shuster, David L ^a,b   Farley, Kenneth A ^c   Vasconcelos, Paulo M ^d   Balco, Greg ^b   Monteiro, Hevelyn S ^d   Waltenberg, Kathryn ^d   Stone, John O ^e  

^a UNIVERSITY OF CALIFORNIA   (United States)

^b BERKELEY GEOCHRONOLOGY CENTER   (United States)

^c CALIFORNIA INSTITUTE OF TECHNOLOGY   (United States)

^d UNIVERSITY OF QUEENSLAND   (Australia)

^e UNIVERSITY OF WASHINGTON   (United States)

Author keywords

21Ne; 3He; Chemical weathering; Cosmogenic nuclide geochronology; Laterite; Production rate calibration

Indexed keywords

AMAZON BASIN; BANDED IRON FORMATIONS; CENTRAL BRAZILS; CHEMICAL COMPOSITIONS; CHEMICAL WEATHERING; COEXISTING PHASIS; COSMOGENIC; COSMOGENIC NUCLIDES; CURRENT ESTIMATES; DEPTH PROFILE; HELIUM ISOTOPES; HIGH LATITUDES; LATERITE; LOW RATES; PRODUCTION RATES; RE-PRECIPITATION; SURFACE EROSION; TIME-SCALES; TROPICAL ENVIRONMENTS;

EROSION; ESTIMATION; GEOCHRONOLOGY; HELIUM; IRON ORES; ISOTOPES; QUARTZ; SOILS; SURFACES; WEATHERING;

HEMATITE;

BANDED IRON FORMATION; CALIBRATION; CHEMICAL COMPOSITION; CHEMICAL WEATHERING; COSMIC RAY; COSMOGENIC RADIONUCLIDE; GEOCHRONOLOGY; GOETHITE; HELIUM ISOTOPE; HEMATITE; LATERITE; QUARTZ;

AMAZON BASIN; BRAZIL;

EID: 84858713116     PISSN: 0012821X     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.epsl.2012.02.017     Document Type: Article

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