AUSTRALIA AS THE WORLD WARMED: OUR REGIONAL RESPONSE TO RAPID GLOBAL WARMING EVENTS IN THE GEOLOGICAL PAST
Grant number: FT130100801 | Funding period: 2014 - 2018
Projections of global climate change over the next century are so negative we must look to the Pliocene Epoch, more than 2.5 million years ago, for past analogues. Nonetheless, more recent episodes of rapid global warming during the late Pleistocene might approximate those expected for coming decades. This project will study past Australian regional temperature and rainfall responses to these events, on a high-resolution absolute timescale. The necessary analytical technologies are new, meaning a study of this scope could not previously be attempted, and they will be further developed under this project. Outputs will include spatial patterns and lead/lag relationships which can be used to su..View full description
Related publications (37)
Ocean-atmosphere interconnections from the last interglacial to the early glacial: An integration of marine and cave records in the Iberian region
Judit Torner, Isabel Cacho, Ana Moreno, Francisco J Sierro, Belen Martrat, Julio Rodriguez-Lazaro, Jaime Frigola, Pedro Arnau, Anchel Belmonte, John Hellstrom, Hai Cheng, R Lawrence Edwards, Heather Stoll
This study explores the climatic variability in the Iberian Peninsula (IP) and its surrounding seas from 140 to 65 kyr BP. Marine ..
U-Th and radiocarbon dating of calcite speleothems from gypsum caves (Emilia Romagna, North Italy)
Andrea Columbu, Russell Drysdale, John Hellstrom, Jon Woodhead, Hai Cheng, Quan Hua, Jian-xin Zhao, Paolo Montagna, Edwige Pons-Branchu, R Lawrence Edwards
High-resolution U-Th and 14C dating of two calcite flowstones (RTf: Last Interglacial; RTy: Late Holocene) from the Re Tiberio – M..
Effect of aragonite to calcite transformation on the geochemistry and dating accuracy of speleothems. An example from Castariar Cave, Spain
Rebeca Martin-Garcia, Ana M Alonso-Zarza, Silvia Frisia, Alvaro Rodriguez-Berriguete, Russell Drysdale, John Hellstrom
Aragonite speleothems are increasingly being used as high-resolution climate proxies; however, aragonite is unstable and susceptib..
The antiquity of Nullarbor speleothems and implications for karst palaeoclimate archives
Jon D Woodhead, JM Kale Sniderman, John Hellstrom, Russell N Drysdale, Roland Maas, Nicholas White, Susan White, Paul Devine
Speleothems represent important archives of terrestrial climate variation that host a variety of proxy signals and are also highly..
Paleoclimate change in Ethiopia around the last interglacial derived from annually-resolved stalagmite evidence
Asfawossen Asrat, Andy Baker, Melanie J Leng, John Hellstrom, Gregoire Mariethoz, Ian Boomer, Dorothy Yu, Catherine N Jex, John Gunn
Oxygen and carbon (δ18Ο/δ13C) isotope, growth rate and trace element data are reported for a U-Th dated, annually-laminated stalag..
Climate variability on the Adriatic seaboard during the last glacial inception and MIS 5c from Frasassi Cave stalagmite record
V Vanghi, A Borsato, S Frisia, R Drysdale, J Hellstrom, P Bajo
A stalagmite (FR16) from Frasassi Cave, located near the Adriatic coast of the Italian peninsula, offers a 16 kyr petrographic and..
Enhanced climate instability in the North Atlantic and southern Europe during the Last Interglacial
PC Tzedakis, RN Drysdale, V Margari, LC Skinner, L Menviel, RH Rhodes, AS Taschetto, DA Hodell, SJ Crowhurst, JC Hellstrom, AE Fallick, JO Grimalt, JF McManus, B Martrat, Z Mokeddem, F Parrenin, E Regattieri, K Roe, G Zanchetta
Considerable ambiguity remains over the extent and nature of millennial/centennial-scale climate instability during the Last Inter..
Younger Dryas to Early Holocene paleoclimate in Cantabria (N Spain): Constraints from speleothem Mg, annual fluorescence banding and stable isotope records
Carlos Rossi, Petra Bajo, Rafael P Lozano, John Hellstrom
The Younger Dryas (YD) stadial represents the most abrupt climate change of the Earth's recent history. Thus, understanding its ca..
Climate dynamics during the penultimate glacial period recorded in a speleothem from Kanaan Cave, Lebanon (central Levant)
Carole Nehme, Sophie Verheyden, Sebastian FM Breitenbach, David P Gillikin, Anouk Verheyden, Hai Cheng, R Lawrence Edwards, John Hellstrom, Stephen R Noble, Andrew R Farrant, Diana Sahy, Thomas Goovaerts, Ghada Salem, Philippe Claeys
Little is known about terrestrial climate dynamics in the Levant during the penultimate interglacial-glacial period. To decipher t..
Tropical Indo-Pacific hydroclimate response to North Atlantic forcing during the last deglaciation as recorded by a speleothem from Sumatra, Indonesia
Jennifer B Wurtzel, Nerilie J Abram, Sophie C Lewis, Petra Bajo, John C Hellstrom, Ulrike Troitzsch, David Heslop
Abrupt changes in Atlantic Meridional Overturning Circulation are known to have affected the strength of the Indian and Asian Mons..
A MIS 9/MIS 8 speleothem record of hydrological variability from Macedonia (FYROM)
Eleonora Regattieri, Giovanni Zanchetta, Ilaria Isola, Petra Bajo, Natale Perchiazzi, Russell N Drysdale, Chiara Boschi, John C Hellstrom, Alexander Francke, Bernd Wagner
The period corresponding to Marine Isotope Stages 9 (MIS 9) offers the opportunity to study orbital and sub-orbital scale climate ..
High spatial resolution investigation of nucleation, growth and early diagenesis in speleothems as exemplar for sedimentary carbonates
Silvia Frisia, Andrea Borsato, John Hellstrom
Investigation by high resolution Transmission Electron Microscopy (HR-TEM) and Synchrotron-Radiation based micro X-ray fluorescenc..
Evidence of thermophilisation and elevation-dependent warming during the Last Interglacial in the Italian Alps
VE Johnston, A Borsato, S Frisia, C Spoetl, Y Dublyansky, P Toechterle, JC Hellstrom, P Bajo, RL Edwards, H Cheng
Thermophilisation is the response of plants communities in mountainous areas to increasing temperatures, causing an upward migrati..
Wavelet analysis of delta O-18 and delta C-13 time-series from an Holocene speleothem record from Corchia Cave (central Italy): insights for the recurrence of dry-wet periods in the Central Mediterranean
Andrea Tognarelli, Giovanni Zanchetta, Eleonora Regattieri, Ilaria Isola, Russell N Drysdale, Monica Bini, John C Hellstrom
In this work, the continuous wavelet transform (CWT) is used to analyse stable isotope (δ18O and δ13C) time-series from a speleoth..
Modern to Glacial age subglacial meltwater drainage at Law Dome, coastal East Antarctica from topography, sediments and jokulhlaup observations
Ian D Goodwin, Jason L Roberts, David M Etheridge, John Hellstrom, Andrew D Moy, Marta Ribo, Andrew M Smith
Rare jökulhlaup events, also known as subglacial lake outburst flood events, have been observed at the Law Dome ice margin and pro..
New speleothem data from Molinos and Ejulve caves reveal Holocene hydrological variability in northeast Iberia
Ana Moreno, Carlos Perez-Mejias, Miguel Bartolome, Carlos Sancho, Isabel Cacho, Heather Stoll, Antonio Delgado-Huertas, John Hellstrom, R Lawrence Edwards, Hai Cheng
New speleothem records from northeastern Iberian caves provide data to explore the climatic patterns during the Holocene. We prese..
Early last glacial intra-interstadial climate variability recorded in a Sardinian speleothem
Andrea Columbu, Russell Drysdale, Emilie Capron, Jon Woodhead, Jo De Waele, Laura Sanna, John Hellstrom, Petra Bajo
Chemical and physical proxy data from a precisely dated early last glacial (∼113–110 ka, MIS5d) Sardinian stalagmite reveal a sub-..
Stalagmite carbon isotopes and dead carbon proportion (DCP) in a near-closed-system situation: An interplay between sulphuric and carbonic acid dissolution
Petra Bajo, Andrea Borsato, Russell Drysdale, Quan Hua, Silvia Frisia, Giovanni Zanchetta, John Hellstrom, Jon Woodhead
In this study, the ‘dead carbon proportion’ (DCP) calculated from combined U-Th and radiocarbon analyses was used to explore the c..
Hydroclimate of the Last Glacial Maximum and deglaciation in southern Australia's arid margin interpreted from speleothem records (23-15 ka)
Pauline C Treble, Andy Baker, Linda K Ayliffe, Timothy J Cohen, John C Hellstrom, Michael K Gagan, Silvia Frisia, Russell N Drysdale, Alan D Griffiths, Andrea Borsato
Terrestrial data spanning the Last Glacial Maximum (LGM) and deglaciation from the southern Australian region are sparse and limit..
The influence of Antarctic subglacial volcanism on the global iron cycle during the Last Glacial Maximum
Silvia Frisia, Laura S Weyrich, John Hellstrom, Andrea Borsato, Nicholas R Golledge, Alexandre M Anesio, Petra Bajo, Russell N Drysdale, Paul C Augustinus, Camille Rivard, Alan Cooper
Marine sediment records suggest that episodes of major atmospheric CO2 drawdown during the last glacial period were linked to iron..
Dating stalagmites in mediterranean climates using annual trace element cycles
Gurinder Nagra, Pauline C Treble, Martin S Andersen, Petra Bajo, John Hellstrom, Andy Baker
Speleothems may preserve geochemical information at annual resolution, preserving information about past hydrology, environment an..
Exploring the dating of "dirty" speleothems and cave sinters using radiocarbon dating of preserved organic matter
Alison J Blyth, Quan Hua, Andrew Smith, Silvia Frisia, Andrea Borsato, John Hellstrom
Speleothems and other carbonate deposits such as tufa containing high proportions of detrital material can be difficult to chemica..
Petrographical and geochemical changes in Bosnian stalagmites and their palaeo-environmental significance
Veronica Chiarini, Isabelle Couchoud, Russell Drysdale, Petra Bajo, Simone Milanolo, Silvia Frisia, Alan Greig, John Hellstrom, Jo De Waele
Detailed petrographic observations have been coupled with trace element and δ13C - δ18O analyses in order to investigate their dyn..
Environmental variability between the penultimate deglaciation and the mid Eemian: Insights from Tana che Urla (central Italy) speleothem trace element record
Eleonora Regattieri, Giovanni Zanchetta, Russell N Drysdale, Ilaria Isola, Jon D Woodhead, John C Hellstrom, Biagio Giaccio, Alan Greig, Ilaria Baneschi, Elissavet Dotsika
A trace element record (Mg, Sr, Ba, Al, Si, P, Y, Zn) covering the ca. 133 ka to ca. 124 ka time interval was acquired from a flow..
"Cryptic" diagenesis and its implications for speleothem geochronologies
Petra Bajo, John Hellstrom, Silvia Frisia, Russell Drysdale, Jay Black, Jon Woodhead, Andrea Borsato, Giovanni Zanchetta, Malcolm W Wallace, Eleonora Regattieri, Ralf Haese
Speleothems are usually considered as one of the most amenable palaeoclimate archives for U-series dating. A number of studies in ..
Western Pacific hydroclimate linked to global climate variability over the past two millennia
Michael L Griffiths, Alena K Kimbrough, Michael K Gagan, Russell N Drysdale, Julia E Cole, Kathleen R Johnson, Jian-Xin Zhao, Benjamin I Cook, John C Hellstrom, Wahyoe S Hantoro
Interdecadal modes of tropical Pacific ocean-atmosphere circulation have a strong influence on global temperature, yet the extent ..
Pliocene reversal of late Neogene aridification
JM Kale Sniderman, Jon D Woodhead, John Hellstrom, Gregory J Jordan, Russell N Drysdale, Jonathan J Tyler, Nicholas Porch
The Pliocene epoch (5.3-2.6 Ma) represents the most recent geological interval in which global temperatures were several degrees w..
Pedothem carbonates reveal anomalous North American atmospheric circulation 70,000-55,000 years ago
Erik J Oerter, Warren D Sharp, Jessica L Oster, Angela Ebeling, John W Valley, Reinhard Kozdon, Ian J Orland, John Hellstrom, Jon D Woodhead, Janet M Hergt, Oliver A Chadwick, Ronald Amundson
Our understanding of climatic conditions, and therefore forcing factors, in North America during the past two glacial cycles is li..
Natural attrition and growth frequency variations of stalagmites in southwest Sulawesi over the past 530,000 years
Nick Scroxton, Michael K Gagan, Gavin B Dunbar, Linda K Ayliffe, Wahyoe S Hantoro, Chuan-Chou Shen, John C Hellstrom, Jian-xin Zhao, Hai Cheng, R Lawrence Edwards, Hailong Sun, Hamdi Rifai
Previous studies have analysed the age distributions of stalagmites harvested from multiple caves and inferred important palaeocli..
Solar influence and hydrological variability during the Holocene from a speleothem annual record (Molinos Cave, NE Spain)
Arsenio Munoz, Miguel Bartolome, Alicia Munoz, Carlos Sancho, Ana Moreno, John C Hellstrom, M Cinta Osacar, Isabel Cacho
We present a multi-proxy approach to reconstructing Holocene climate conditions in northeastern Spain based on an excellent correl..
A composite annual-resolution stalagmite record of North Atlantic climate over the last three millennia
Andy Baker, John C Hellstrom, Bryce FJ Kelly, Gregoire Mariethoz, Valerie Trouet
Annually laminated stalagmites can be used to construct a precise chronology, and variations in laminae thickness provide an annua..
Hydrological change in Southern Europe responding to increasing North Atlantic overturning during Greenland Stadial 1
Miguel Bartolome, Ana Moreno, Carlos Sancho, Heather M Stoll, Isabel Cacho, Christoph Spoetl, Anchel Belmonte, R Lawrence Edwards, Hai Cheng, John C Hellstrom
Greenland Stadial 1 (GS-1) was the last of a long series of severe cooling episodes in the Northern Hemisphere during the last gla..
Evidence for global teleconnections in a late Pleistocene speleothem record of water balance and vegetation change at Sudwala Cave, South Africa
Helen Green, Robyn Pickering, Russell Drysdale, Brett C Johnson, John Hellstrom, Malcolm Wallace
Understanding the global response to millennial-scale climatic events is essential to our comprehension of climatic teleconnection..
Pleistocene speleothem fracturing in the foreland of the Western Carpathians: a case study from the seismically active eastern margin of the Bohemian Massif
Ondrej Babek, Milos Briestensky, Gabriela Precechtelova, Petra Stepanoikova, John C Hellstrom, Russell Neil Drysdale
We studied speleothem-fracturing styles and their tectonic context in three cave systems situated in the eastern Bohemian Massif, ..
Reconstruction of MIS 5 climate in the central Levant using a stalagmite from Kanaan Cave, Lebanon
C Nehme, S Verheyden, SR Noble, AR Farrant, D Sahy, J Hellstrom, JJ Delannoy, P Claeys
Lying at the transition between the temperate Mediterranean domain and subtropical deserts, the Levant is a key area to study the ..