https://nova.newcastle.edu.au/vital/access/ /manager/Index ${session.getAttribute("locale")} 5 https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:49765 Wed 31 May 2023 09:27:40 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:44651 Wed 19 Oct 2022 09:56:34 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:13485 Wed 11 Apr 2018 12:01:50 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:49279 Wed 10 May 2023 12:31:06 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:54302 Wed 06 Mar 2024 14:09:54 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:3224 Wed 05 Dec 2018 17:32:57 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:37522 230Th content. This poses problems in establishing reliable trends and periodicities for droughts and pluvial episodes in a region vulnerable to climate change. Here we constrain the chronology of a Cook Islands stalagmite using synchrotron µXRF two-dimensional mapping of Sr concentrations coupled with growth laminae optical imaging constrained by in situ monitoring. Unidimensional LA-ICP-MS-generated Mg, Sr, Ba and Na variability series were anchored to the 2D Sr and optical maps. The annual hydrological significance of Mg, Sr, Ba and Na was tested by principal component analysis, which revealed that Mg and Na are related to dry-season, wind-transported marine aerosols, similar to the host-rock derived Sr and Ba signatures. Trace element annual banding was then used to generate a calendar-year master chronology with a dating uncertainty maximum of ± 15 years over 336 years. Our approach demonstrates that accurate chronologies and coupled hydroclimate proxies can be obtained from speleothems formed in tropical settings where low seasonality and problematic U–Th dating would discourage the use of high-resolution climate proxies datasets.]]> Tue 15 Nov 2022 14:35:44 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:47049 250 years based on observed growth rates, are widespread along northern Australian and tropical coastlines and could provide important information regarding pre-instrumental climate in regions currently lacking high-resolution (i.e., near annual) centennial scale climate proxy records.]]> Tue 13 Dec 2022 14:58:03 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:40783 Tue 03 Oct 2023 11:52:22 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:516 Thu 25 Jul 2013 09:10:26 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:42130 Thu 20 Oct 2022 09:42:31 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:38856 Thu 17 Feb 2022 10:28:22 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:48873 Thu 13 Apr 2023 12:40:33 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:9608 Sat 24 Mar 2018 08:39:39 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:8023 Sat 24 Mar 2018 08:36:49 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:1234 Sat 24 Mar 2018 08:28:33 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:1701 0 °C at a time when MIS 6 ice volumes were close to their maximum. High stable carbon isotope (δ¹³C) values (−2.8‰ to +3.1‰) throughout the stalagmite's growth reflect a persistently low input of biogenic CO², indicating that the steep, barren and alpine-like recharge area of today has been in existence for at least the last ∼380 kyr. During MIS 9, the lowest δ¹³C values occur well after maximum interglacial conditions, suggesting a lag in the development of post-glacial soils in this high-altitude karst. The stable oxygen isotope (δ¹⁸O) trends match the main structural features of the major climate proxy records (SPECMAP, Vostok and Devils Hole), suggesting that the δ¹⁸O of CC1 has responded to global-scale climate changes, whilst remarkable similarity exists between CC1 δ¹⁸O and regional sea-surface temperature reconstructions from North Atlantic core ODP980 and southwest Pacific marine core MD97-2120 through the most detailed part of the CC1 record, MIS 9–8. The results suggest that CC1 and other stalagmites from the cave have the potential to capture a long record of regional temperature trends, particularly in regards to the relative severity of Pleistocene glacial stages.]]> Sat 24 Mar 2018 08:27:20 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:11437 Sat 24 Mar 2018 08:14:36 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:4999 Sat 24 Mar 2018 07:44:08 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:27638 Sat 24 Mar 2018 07:34:04 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:29757 Sat 24 Mar 2018 07:32:17 AEDT ]]>