2012
DOI: 10.1029/2011jf002231
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Weak influences of climate and mineral supply rates on chemical erosion rates: Measurements along two altitudinal transects in the Idaho Batholith

Abstract: [1] Chemical weathering promotes regolith production, physical erosion, nutrient supply, and drawdown of atmospheric CO 2 . Although mineral dissolution rates show dependences on temperature and moisture in theoretical models and laboratory experiments, effects of climate on chemical erosion rates in nature remain uncertain, in part because variations in physical erosion rates and lithology can obscure climatic signals in chemical erosion rate measurements. Here we present new estimates of millennial-scale che… Show more

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Cited by 39 publications
(46 citation statements)
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References 71 publications
(151 reference statements)
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“…Concentrations of cosmogenic nuclides in the mobile regolith or its underlying parent material reveal the regolith production rate [e.g., Heimsath et al ., ; Riebe et al ., ; Foster et al ., ], as do vertical gradients in U‐series disequilibria in unmixed regolith [e.g., Dosseto et al ., ]. Given an estimate of the regolith production rate, the chemical erosion rate can be inferred from concentrations in regolith and parent material of so‐called immobile elements—elements like Zr or Ti that remain in the regolith as more soluble elements are leached out [ Merrill , ; Marshall and Haseman , ; Stallard , ; Brimhall and Dietrich , ; Riebe et al ., ; Ferrier et al ., ]. W= S|1ZrrockZrregolith …”
Section: Framework For Supply‐limited and Kinetic‐limited Chemical Ermentioning
confidence: 99%
“…Concentrations of cosmogenic nuclides in the mobile regolith or its underlying parent material reveal the regolith production rate [e.g., Heimsath et al ., ; Riebe et al ., ; Foster et al ., ], as do vertical gradients in U‐series disequilibria in unmixed regolith [e.g., Dosseto et al ., ]. Given an estimate of the regolith production rate, the chemical erosion rate can be inferred from concentrations in regolith and parent material of so‐called immobile elements—elements like Zr or Ti that remain in the regolith as more soluble elements are leached out [ Merrill , ; Marshall and Haseman , ; Stallard , ; Brimhall and Dietrich , ; Riebe et al ., ; Ferrier et al ., ]. W= S|1ZrrockZrregolith …”
Section: Framework For Supply‐limited and Kinetic‐limited Chemical Ermentioning
confidence: 99%
“…A number of geomorphologists and geochemists have sought insight by exploring the role of climate in actively eroding landscapes. Partially motivated by the recognition that silicate weathering in mountain belts may modulate global climate [e.g., Walker et al ., ], past research has looked for a climate control on net chemical weathering rates [e.g., Dixon et al ., ; Ferrier et al ., ; Larsen et al ., ; Riebe et al ., ]. Contrary to original expectations, this research finds that globally, net weathering rates correlate more strongly with erosion rates than climate variables such as mean annual precipitation or temperature [e.g., Dixon and von Blanckenburg , ; West et al ., ].…”
Section: Introductionmentioning
confidence: 98%
“…Contrary to original expectations, this research finds that globally, net weathering rates correlate more strongly with erosion rates than climate variables such as mean annual precipitation or temperature [e.g., Dixon and von Blanckenburg , ; West et al ., ]. Indeed, physical erosion is particularly important in controlling weathering rates via its control on mineral residence times within the surface weathering environment [ Riebe et al ., ], and these links have been confirmed in detail in soils [e.g., Dixon et al ., ; Ferrier et al ., ; Riebe et al ., ] and stream sediments and solutes [e.g., Stallard and Edmond , ; West et al ., ].…”
Section: Introductionmentioning
confidence: 99%
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“…4 Catchment D was obtained by summing weathering rate and erosion rate in the global compilation of Milliman and Fansworth (2011). 5 Soil weathering rates are compiled from studies where both soil production rates and a CDF based on Zr concentrations in bedrock and regolith are reported (Burke et al, 2009;Burke et al, 2007;Dixon et al, 2012;Dixon et al, 2009a;Ferrier et al, 2012;Riebe et al, 2004). Soil production rates from Dixon et al (2012) were modelled from soil thicknesses presented in Heimsath et al (2012).…”
mentioning
confidence: 99%