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1999

Conference Publication

40Ar/39Ar weathering ages from ancient Australian cratonic surfaces

Vasconcelos, P. M. D. and Stone, J. O. (1999). 40Ar/39Ar weathering ages from ancient Australian cratonic surfaces. Rio 99, Regional Conference on Geomorphology, Rio de Janeiro, 17-22 July, 1999. Rio de Janeiro: Brazilian Geomorphological Union.

40Ar/39Ar weathering ages from ancient Australian cratonic surfaces

1999

Journal Article

K-Ar and 40Ar/39Ar geochronology of weathering processes

Vasconcelos, P. M. D. (1999). K-Ar and 40Ar/39Ar geochronology of weathering processes. Annual Review of Earth and Planetary Sciences, 27 (1), 183-229. doi: 10.1146/annurev.earth.27.1.183

K-Ar and 40Ar/39Ar geochronology of weathering processes

1999

Conference Publication

Quaternary erosion rate estimates for ancient Australian cratonic surfaces

Vasconcelos, P. M. D. and Stone, J. O. (1999). Quaternary erosion rate estimates for ancient Australian cratonic surfaces. Rio 99, Regional Conference on Geomorphology, Rio de Janeiro, 17-22 July, 1999. Rio de Janeiro: Brazilian Geomorphological Union.

Quaternary erosion rate estimates for ancient Australian cratonic surfaces

1995

Journal Article

Mechanisms and kinetics of atmospheric, radiogenic, and nucleogenic argon release from cryptomelane during 40Ar 39Ar analysis

Vasconcelos, Paulo Marcos, Renne, Paul R., Becker, Tim A. and Wenk, Hans-Rudolf (1995). Mechanisms and kinetics of atmospheric, radiogenic, and nucleogenic argon release from cryptomelane during 40Ar 39Ar analysis. Geochimica et Cosmochimica Acta, 59 (10), 2057-2070. doi: 10.1016/0016-7037(95)00126-3

Mechanisms and kinetics of atmospheric, radiogenic, and nucleogenic argon release from cryptomelane during 40Ar 39Ar analysis

1994

Journal Article

In-situ study of the thermal-behavior of cryptomelane by high-voltage and analytical electron-microscopy

Vasconcelos, P. M., Wenk, H. R. and Echer, C. (1994). In-situ study of the thermal-behavior of cryptomelane by high-voltage and analytical electron-microscopy. The American Mineralogist, 79 (1-2), 80-90.

In-situ study of the thermal-behavior of cryptomelane by high-voltage and analytical electron-microscopy

1994

Journal Article

40Ar39Ar analysis of supergene jarosite and alunite: implications to the paleoweathering history of the western USA and West Africa

Vasconcelos, Paulo M., Brimhall, George H., Becker, Tim A. and Renne, Paul R. (1994). 40Ar39Ar analysis of supergene jarosite and alunite: implications to the paleoweathering history of the western USA and West Africa. Geochimica et Cosmochimica Acta, 58 (1), 401-420. doi: 10.1016/0016-7037(94)90473-1

40Ar39Ar analysis of supergene jarosite and alunite: implications to the paleoweathering history of the western USA and West Africa

1994

Journal Article

Direct dating of weathering phenomena by 40Ar39 Ar and K-Ar analysis of supergene K-Mn oxides

Vasconcelos, Paulo M., Renne, Paul R., Brimhall, George H. and Becker, Tim A. (1994). Direct dating of weathering phenomena by 40Ar39 Ar and K-Ar analysis of supergene K-Mn oxides. Geochimica et Cosmochimica Acta, 58 (6), 1635-1665. doi: 10.1016/0016-7037(94)90565-7

Direct dating of weathering phenomena by 40Ar39 Ar and K-Ar analysis of supergene K-Mn oxides

1992

Journal Article

Age and duration of weathering by 40K-40Ar and 40Ar/39Ar analysis of potassium-manganese oxides

Vasconcelos, Paolo M., Becker, Tim A., Renne, Paul R. and Brimhall, George H. (1992). Age and duration of weathering by 40K-40Ar and 40Ar/39Ar analysis of potassium-manganese oxides. Science, 258 (5081), 451-455. doi: 10.1126/science.258.5081.451

Age and duration of weathering by 40K-40Ar and 40Ar/39Ar analysis of potassium-manganese oxides

1991

Conference Publication

Supergene geochemistry and crystal morphology of gold in a semiarid weathering environment: application to gold exploration

Vasconcelos, P. and Kyle, J. Richard (1991). Supergene geochemistry and crystal morphology of gold in a semiarid weathering environment: application to gold exploration. 13th International Geochemical Exploration Symp ( Iges ) / 2nd Brazilian Geochemical Congress, Rio De Janeiro, Brazil, 1-6 October 1989. Amsterdam, Netherlands: Elsevier. doi: 10.1016/0375-6742(91)90034-r

Supergene geochemistry and crystal morphology of gold in a semiarid weathering environment: application to gold exploration