Biomass effects on stalagmite growth and isotope ratios: A 20th century analogue from Wiltshire, England

Baldini, James U.L.; McDermott, Frank; Baker, Andy; Baldini, Lisa M.; Mattey, D. P.; Railsback, L. Bruce

doi:10.1016/j.epsl.2005.09.022

Cited by 119 publications

(65 citation statements)

References 32 publications

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“…The 2 ‰ higher value found in the vilstm1 δ 13 C profile is possibly a consequence of a lower soil P CO2 under the grass field compared with the one found under a forest. A δ 13 C decreasing trend was observed in modern stalagmites from Brown's Folly Mine (Wiltshire, England) and interpreted in the same way (Baldini et al, 2005).…”

Section: Carbon 13 Trend In Modern Stalagmitesmentioning

confidence: 93%

Palaeoclimate research in Villars Cave (Dordogne, SW-France)

Genty¹

2008

IJS

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Section: Carbon 13 Trend In Modern Stalagmitesmentioning

confidence: 93%

Palaeoclimate research in Villars Cave (Dordogne, SW-France)

Genty¹

2008

IJS

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“…(iii) Seasonal growth rate fluctuations potentially bias net proxy signals towards the season favourable to deposition (Baldini et al, 2008;Banner et al, 2007;Fairchild et al, 2006;Frisia et al, 2000;Mattey et al, 2008;Spötl et al, 2005). (iv) Growth rate variability may be related to climate signal modification by other processes, such as biomass change above the cave (e.g., Baldini et al, 2005) and surface and epikarst hydrology Bradley et al, 2010;Darling, 2004). Moreover, stalagmite growth rate may provide a proxy for surface or soil temperature (Genty et al, 2001), rainfall amount (Genty and Quinif, 1996), or vegetation changes (Baldini et al, 2005).…”

Section: Introductionmentioning

confidence: 99%

“…(iv) Growth rate variability may be related to climate signal modification by other processes, such as biomass change above the cave (e.g., Baldini et al, 2005) and surface and epikarst hydrology Bradley et al, 2010;Darling, 2004). Moreover, stalagmite growth rate may provide a proxy for surface or soil temperature (Genty et al, 2001), rainfall amount (Genty and Quinif, 1996), or vegetation changes (Baldini et al, 2005). The work of Kaufmann (2003) and Kaufmann and Dreybrodt (2004) represents an important advance in linking stalagmite growth with climate variability, but the model resolutions used (1000 and 200 years, respectively) are too low to be directly applicable to many highresolution palaeoclimate studies using stalagmites.…”

Section: Introductionmentioning

confidence: 99%

Reconstructing modern stalagmite growth from cave monitoring, local meteorology, and experimental measurements of dripwater films

Baker

Mattey

Baldini

2014

Earth and Planetary Science Letters

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. (2014) 'Reconstructing modern stalagmite growth from cave monitoring, local meteorology, and experimental measurements of dripwater lms.', Earth and planetary science letters., 392 . pp. 239-249. Further information on publisher's website:http://dx.doi.org/10.1016/j.epsl.2014.02.036Publisher's copyright statement: NOTICE: this is the author's version of a work that was accepted for publication in Earth and Planetary Science Letters. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be re ected in this document. Changes may have been made to this work since it was submitted for publication. A de nitive version was subsequently published in Earth and Planetary Science Letters, 392, 15 April 2014, 10.1016/j.epsl.2014 Additional information: Use policyThe full-text may be used and/or reproduced, and given to third parties in any format or medium, without prior permission or charge, for personal research or study, educational, or not-for-pro t purposes provided that:• a full bibliographic reference is made to the original source • a link is made to the metadata record in DRO • the full-text is not changed in any way The full-text must not be sold in any format or medium without the formal permission of the copyright holders.Please consult the full DRO policy for further details. AbstractInterpretations of high-resolution proxy datasets from stalagmites require support from longterm cave monitoring data and quantified changes in sample growth rate. One cave site for which the modern climate signal transfer systematics are relatively well characterised by cave monitoring is New St Michael's Cave, Gibraltar. This site provides a rare opportunity to reconstruct modern calcite growth, to link growth with the cave environment and local climate, and to test the sufficiency of existing growth rate theory on monthly to inter-annual timescales. Here, we use a numerical time-series growth rate model, driven by cave monitoring and local meteorological data, and the results of an experimental investigation into variation in dripwater film thickness as a function of stalagmite apex morphology to reconstruct the modern growth (AD 1951(AD -2004 of 'Gib04a', a stalagmite retrieved from New St Michael's Cave. Our experimental measurements demonstrate that dripwater film thickness decreases linearly with increasing stalagmite curvature and that the presence of millimetre-scale surface microtopography reduces film thickness by an order of magnitude. We identified changes in growth laminae curvature from a Gib04a cut section to determine film thickness variability through time and combined this with estimated dripwater [Ca 2+ ] and cave air pCO 2 seasonality to drive the model. Our reconstruction exhibits strong seasonality and tracks variability in calcite [Sr 2+ ], a trace metal whose incorporation into calcite is partially growth rate-controlled. Reconstructed growth also shows co-variation with seasonal changes in calc...

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“…In the previous investigations, the biomass effect was extensively proposed to control the carbonate δ 13 C on shorter timescales [28][29][30][31], among which four caves in Guizhou Province with different vegetation covers revealed a negative relationship between them [31]. In Figure 3, periods of depleted calcite δ 13 C values (indicated by the grey bars) likely correspond to strong biogenic CO 2 production, because increased soil biogenic CO 2 production leads to more negative δ 13 C values [2,20].…”

Section: Environmental Significance Of Stalagmite δ 13 Cmentioning

confidence: 99%

High-resolution stalagmite δ 13C record of soil processes from southwestern China during the early MIS 3

et al. 2012

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Knowledge of the evolution of pedogenic processes in the carbonate area is important to understand the dynamics of rock desertification. A precisely-dated stalagmite δ 13 C record between 61.3 and 50.5 ka BP from southwestern China, potentially related to soil biogenic CO 2 production, shifts within a narrow range between −9‰ and −7‰, and exhibits a prominent cycle of 350-470 a, independent of the Asian monsoon changes. This indicates that a threshold effect might control the amplitude of calcite δ 13 C variability, likely associated with the vertical soil loss in the carbonate area. The periodic δ 13 C changes reflect that the loss/recovery of soil cover can operate on centennial scale. Thus, the rock desertification in southwestern China might at least initiate 60 ka ago and should be of natural origin.

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Biomass effects on stalagmite growth and isotope ratios: A 20th century analogue from Wiltshire, England

Cited by 119 publications

References 32 publications

Palaeoclimate research in Villars Cave (Dordogne, SW-France)

Palaeoclimate research in Villars Cave (Dordogne, SW-France)

Reconstructing modern stalagmite growth from cave monitoring, local meteorology, and experimental measurements of dripwater films

High-resolution stalagmite δ 13C record of soil processes from southwestern China during the early MIS 3

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