Strontium isotopes and nutrient sourcing in a semi-arid woodland

Impact of agricultural practice on the Sr isotopic composition of food products: Application to discriminate the geographic origin of olives and olive oil

“…In fact, in contrast to lighter stable elements, Sr isotopic ratios are theoretically not affected by kinetic and equilibrium fractionations during low temperatures and biologic processes, due to their high atomic mass and small mass difference Faure and Mensing 2005). Only a few data outlined very discrete Sr isotope fractionation in soil environments (Fietzke and Eisenhauer, 2006;Halicz et al, 2008;Shalev et al, 2013) and during uptake by plants (De Souza et al, 2010 Compilation of literature data focuses on two main sources for Sr supply, one derived from bedrock weathering and the second from exogenous atmospheric input (Graustein and Armstrong, 1983;Graustein, 1989;Miller et al, 1993;Stewart et al, 1998;Vitousek et al, 1999;Probst et al, 2000;Whipkey et al, 2000;Poszwa et al, 2004Poszwa et al, , 2009Reynolds et al, 2012;Hartman and Richard, 2014;Clauer and Semhi, 2016). Recently, an additional potential source has been suggested in the context of forest ecosystems:…”

“…To be also mentioned is the fact that bioavailable Sr may depend on the possibility to be supplied by alterable minerals (Reynolds et al, 2012;Miller et al, 1993;Vitousek et al, 1999;Hartman and Richards, 2014;Song et al, 2015;Fichter et al, 2015). This latter contribution is probably more important in an old carbonate-rich bedrock.…”

Strontium isotopes (87 Sr/86 Sr) in terrestrial ecological and palaeoecological research: empirical efforts and recent advances in continental-scale models

“…Local Sr isotope ratios are typically evaluated using surface water (e.g. Chesson et al, ), soils (Ingram & Weber, ; Barnett‐Johnson et al, ; Walther, Thorrold & Olney, ; Wolff et al, ; Baumann & Crowley, ), vegetation (Keller, Blum & Kling, ; Reynolds, Quade & Betancourt, ), or ossified tissues from animals with limited home ranges (Hoppe et al, ; Blum et al, ; Porder, Payton & Hadly, ; Widga et al, ; Christian, Banner & Mack, ; Reynolds et al, ). While each of these materials offers meaningful data, they differ in how they integrate ‘local’ conditions.…”

Another possible source of archeological maize found in Chaco Canyon, NM: The Tohatchi Flats area, NM, USA

“…Finally, the rabbit brush was not treated to remove any potential dust that had accumulated on the stalk. Research from near the study region has shown strontium derived from dust to range between 0.7087 and 0.7096 (Reynolds et al, 2012). The cob would have been protected from dust derived strontium thus explaining the offset.…”

“…In this study we analyzed 87 Sr/ 86 Sr ratio at the time of mineral formation. Airborne dust does contribute to the local measured soil ratios, which can contribute significant quantities of non-local strontium, particularly in arid regions (Graustein and Armstrong, 1983;Naiman and Quade, 2000;Reynolds et al, 2012). Strontium (Sr) is a stable alkaline earth metal that is incorporated into plants as they metabolize soluble bioavailable Sr from the groundwater in which they live (Burd, 1919;Eckert and Blincoe, 1970;Hart et al, 1932;Hurst and Davis, 1981;Sillen and Kavanagh, 1982 Sr of soil, dust, and water, because plants metabolize local bedrock and dust derived strontium from the soil and groundwater in which they live (Capo et al, 1998 Fig.…”