R. G. Semkin

SEDIMENT GEOCHEMISTRY OF SUDBURY.AREA LAKES

R. G. Semkin, James R. Kramer · The Canadian Mineralogist · 1976 · 139 citations

Organic Geochemistry, Environmental Chemistry, Biogeochemistry +15

The isotopic composition of nitrate produced from nitrification in a hardwood forest floor

John Spoelstra, Sherry L. Schiff, Paul W. Hazlett et al. · Geochimica et Cosmochimica Acta · 2007 · 71 citations

Biogeochemistry, Environmental Chemistry, Engineering +6

Hydrochemistry and mercury cycling in a High Arctic watershed

R. G. Semkin, Greg Mierle, R. Neureuther · The Science of The Total Environment · 2005 · 68 citations

Biogeochemistry, Environmental Chemistry, Engineering +6

Climate-Induced Episodic Acidification of Streams in Central Ontario

Hjalmar Laudon, Peter J. Dillon, M. Catherine Eimers et al. · Environmental Science & Technology · 2004 · 53 citations

Environmental Flow, Organic Geochemistry, Engineering +10

Drought induced pulses of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si20.gif" overflow="scroll"><mml:mrow><mml:msubsup><mml:mrow><mml:mi mathvariant="normal">SO</mml:mi></mml:mrow><mml:mrow><mml:mn>4</mml:mn></mml:mrow><mml:mrow><mml:mn>2</mml:mn><mml:mo>-</mml:mo></mml:mrow></mml:msubsup></mml:mrow></mml:math> from a Canadian shield wetland: use of δ34S and δ18O in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si21.gif" overflow="scroll"><mml:mrow><mml:msubsup><mml:mrow><mml:mi mathvariant="normal">SO</mml:mi></mml:mrow><mml:mrow><mml:mn>4</mml:mn></mml:mrow><mml:mrow><mml:mn>2</mml:mn><mml:mo>-</mml:mo></mml:mrow></mml:msubsup></mml:mrow></mml:math> to determine sources of sulfur

Sherry L. Schiff, John Spoelstra, R. G. Semkin et al. · Applied Geochemistry · 2005 · 50 citations