https://ogma.newcastle.edu.au/vital/access/ /manager/Index en-au 5 The influence of diurnal temperatures on the hydrochemistry of a tufa-depositing stream https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:1342 Wed 11 Apr 2018 16:54:35 AEST ]]> Climate variability on the Adriatic seaboard during the last glacial inception and MIS 5c from Frasassi Cave stalagmite record https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:36369 Thu 02 Apr 2020 13:48:31 AEDT ]]> The evolving landscape and climate of western Flores: an environmental context for the archaeological site of Liang Bua https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:7298 Sat 24 Mar 2018 08:42:13 AEDT ]]> Millennial-scale climate variability during the Last Interglacial recorded in a speleothem from south-western France https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:8023 Sat 24 Mar 2018 08:36:49 AEDT ]]> The influence of bedrock depth on the hydrochemistry of cave drip waters from a karst system in southeastern Australia https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:2872 Sat 24 Mar 2018 08:29:07 AEDT ]]> Regional climate variability and ecosystem responses to the last deglaciation in the northern hemisphere from stable isotope data and calcite fabrics in two northern Adriatic stalagmites https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:19954 Sat 24 Mar 2018 07:58:33 AEDT ]]> Paleoclimate studies and natural-resource management in the Murray-Darling Basin I: past, present and future climates https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:20152 Sat 24 Mar 2018 07:51:37 AEDT ]]> Paleoclimate studies and natural-resource management in the Murray-Darling Basin II: unravelling human impacts and climate variability https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:20153 Sat 24 Mar 2018 07:51:37 AEDT ]]> Investigating the hydrological significance of stalagmite geochemistry (Mg, Sr) using Sr isotope and particulate element records across the late glacial-to-holocene transition https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:30185 c parameter, is controlled by water–rock interaction, with higher and lower Mgc during dry and wet phases, respectively. This is thought to reflect incongruent dissolution of Mg-rich phases. Correction of Sr concentrations for contributions from airborne exogenic Sr, based on 87Sr/86Sr ratios, yields the bedrock-only contribution (Src). Src variation in stalagmite calcite is influenced by speleothem growth rate and by variation of the calcite-water Sr partitioning in wet and dry phases, and only to a minor extent by incongruent dissolution of Mg-rich phases. Concentration profiles for Mgc and Srcg (corrected for growth rate effects) show inverse correlations and are inferred to show hydrological significance which is captured in a hydrological index, HI. We suggest HI provides robust information on water–rock interaction related to hydrological changes and can be utilized in both wet and semi-arid environments, provided the corrections for soil Mg and exogenic Sr can be applied with confidence. Application of the HI index allows correction of Grotta Savi oxygen isotope data, to yield a δ18Oc time series that shows when changes in moisture sources and atmospheric reorganization, or changes in moisture amount, were significant. This is especially evident during the Younger Dryas (YD). The Savi record supports the concept of a two-phase YD, marked by an increase of moisture and stronger impact of Adriatic and Mediterranean Sea influences over the northern Adriatic region from 12.3 ka onwards. Then, a large-scale atmospheric reorganization and gradual northward shift of the Polar Front caused a progressive reduction of sea influence over the region from 12.1 ka, supporting the concept of a hemispheric change.]]> Sat 24 Mar 2018 07:41:31 AEDT ]]>