John Hellstrom

Holocene hydroclimate variability along the Southern Patagonian margin (Chile) reconstructed from Cueva Chica speleothems

C Nehme, D Todisco, SFM Breitenbach, I Couchoud, M Marchegiano, M Peral, H Vonhof, J Hellstrom, R Tjallingii, P Claeys, L Borrero, F Martin

Journal article  |  2023  |  Global and Planetary Change

Testing a novel cave-based proxy for palaeo-earthquake shaking on the Alpine Fault, Aotearoa/New Zealand.

Jeffrey Lang, Joel Baker, Julie Rowland, Adam Hartland, Paul Williams, John Hellstrom, Jamie Howarth, Ingrid Ukstins, Travis Cross, Christopher Wood

Other  |  2023

<p>Speleoseismology aims to reconstruct palaeoseismic records by dating pre- and post-damage speleothem calcite. A common ap..

Neolithic hydroclimatic change and water resources exploitation in the Fertile Crescent.

Eleonora Regattieri, Luca Forti, Russell N Drysdale, Giorgio Mannella, John C Hellstrom, Cecilia Conati Barbaro, Daniele Morandi Bonacossi, Andrea Zerboni

Journal article  |  2023  |  Sci Rep

In the first millennia of the Holocene, human communities in the Fertile Crescent experienced drastic cultural and technological t..

Environmental changes in Sorbas arid region (Southern Spain) during MIS 5a inferred from a carbonate flowstone from a gypsum cave

A Columbu, F Gázquez, E Corrick, J Hellstrom, R Drysdale

Journal article  |  2022  |  Palaeogeography, Palaeoclimatology, Palaeoecology

Present climate conditions impede the formation of calcite speleothems in the gypsum caves of the semi-arid region of Sorbas (Sout..

Antiphase response of the Indonesian-Australian monsoon to millennial-scale events of the last glacial period

Nick Scroxton, Michael K Gagan, Linda K Ayliffe, Wahyoe S Hantoro, John C Hellstrom, Hai Cheng, R Lawrence Edwards, Jian-xin Zhao, Bambang W Suwargadi, Hamdi Rifai

Journal article  |  2022  |  SCIENTIFIC REPORTS

Antiphase behaviour of monsoon systems in alternate hemispheres is well established at yearly and orbital scales in response to al..

Natural cycles in South Pacific Gyre strength and the Southern Annular Mode.

Nicholas T Hitt, Daniel J Sinclair, Helen L Neil, Stewart J Fallon, Aimée Komugabe-Dixson, Denise Fernandez, Philip J Sutton, John C Hellstrom

Journal article  |  2022  |  Sci Rep

The South Pacific Gyre (SPG) plays a vital role in regulating Southern Hemisphere climate and ecosystems. The SPG has been intensi..

The 8.2 ka event in northern Spain: timing, structure and climatic impact from a multi-proxy speleothem record

Hege Kilhavn, Isabelle Couchoud, Russell N Drysdale, Carlos Rossi, John Hellstrom, Fabien Arnaud, Henri Wong

Journal article  |  2022  |  CLIMATE OF THE PAST

The 8.2 ka event is regarded as the most prominent climate anomaly of the Holocene and is thought to have been triggered by a melt..

Supplementary material to "DQPB: software for calculating disequilibrium U-Pb ages"

Timothy John Pollard, Jon David Woodhead, John Charles Hellstrom, John Engel, Roger Powell, Russell Neil Drysdale

Other  |  2022

Cave opening and fossil accumulation in Naracoorte, Australia, through charcoal and pollen in dated speleothems

Rieneke Weij, Jon D Woodhead, JM Kale Sniderman, John C Hellstrom, Elizabeth Reed, Steven Bourne, Russell N Drysdale, Timothy J Pollard

Journal article  |  2022  |  COMMUNICATIONS EARTH & ENVIRONMENT

Caves are important fossil repositories which provide records extending back over million-year timescales. While the physical proc..

Central Mediterranean rainfall varied with high northern latitude temperatures during the last deglaciation

Andrea Columbu, Christoph Spoetl, Jens Fohlmeister, Hsun-Ming Hu, Veronica Chiarini, John Hellstrom, Hai Cheng, Chuan-Chou Shen, Jo De Waele

Journal article  |  2022  |  COMMUNICATIONS EARTH & ENVIRONMENT

Similarly to the effects of current climate change, the last deglaciation (Termination I) rapidly altered northern latitude temper..