Staff and Governance
The day-to-day running of IMEMS is the responsibility of the Core Executive Committee, comprising the Director and Associate Directors and the Administrator.
Publication details for Prof. James BaldiniBaldini, J.U.L., McDermott, F, Baker, A., Baldini, L.M., Mattey, D.P. & Railsback, L.B. (2005). Biomass effects on stalagmite growth and isotope ratios: A 20th century analogue from Wiltshire, England. Earth and Planetary Science Letters 240(2): 486-494.
- Publication type: Journal Article
- ISSN/ISBN: 0012-821X
- DOI: 10.1016/j.epsl.2005.09.022
- Keywords: stalagmite; carbon isotopes; oxygen isotopes; fractionation;vegetation; growth rateCALCITE DEPOSITS; HOLOCENE CLIMATE; UNITED-STATES; SPELEOTHEM; CAVE;RESOLUTION; PALEOCLIMATE; RECORD; RECONSTRUCTION; PRECIPITATION
- Further publication details on publisher web site
- Durham Research Online (DRO) - may include full text
Author(s) from Durham
Increases in calcite deposition rates combined with decreases in δ13C and δ18O in three modern stalagmites from Brown's Folly Mine, Wiltshire, England, are correlative with a well-documented re-vegetation above the mine. Increased soil PCO2 resulted in greater amounts of dissolved CaCO3 in the drip waters, which consequently increased annual calcite deposition rates. The absence of deposition prior to 1916 (28 years after the mine was closed) indicates that vegetation had not yet sufficiently developed to allow higher PCO2 values to form in the soil. Lower δ13C values through time may reflect the increased input of isotopically light biogenic carbon to the total dissolved inorganic carbon (DIC). δ18O decreased synchronously with δ13C, reflecting the increased importance of isotopically light winter recharge due to greater biomass-induced summer evapotranspiration. This is the first empirical demonstration that vegetation density can control stalagmite growth rates, δ13C, and δ18O, contributing critical insights into the interpretation of these climate proxies in ancient stalagmites.
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changes in the southwestern United States, Science 294 (2001)
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climate change in speleothem calcite from Cold Water Cave,
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during the middle Holocene, Geology 27 (9) (1999) 815– 818.
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as indicated by growth frequency variations of secondary
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of speleothem forming groundwaters: implications for
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A high-resolution proxy record of rainfall and ENSO since
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A. Baker, W.L. Barnes, P.L. Smart, Variations in the discharge
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Full Executive Committee
Our Full Executive Committee is made up of the Core Executive Committee, listed above, plus a number of executive members including:
International Advisory Board
We are extremely fortunate to have be able to call on the help and guidance of colleagues from around the world who help to shape and guide our direction, strategy and international reach. Our current Advisory Board members are: