http://hdl.handle.net/10453/35348 2026-07-16T13:28:56Z http://hdl.handle.net/10453/195582 Title: How to consider feasibility aspects of transformation pathways for the industry sector - implications for energy systems modelling Authors: König, R; Pregger, T; Kronshage, S; Jochem, P; McCall, B; Holtz, G; Vishwanathan, SS; Fragkos, P; Teng, F; Smith, SJ; Teske, S 2025-11-01T00:00:00Z http://hdl.handle.net/10453/195418 Title: Grand Canyon landslide-dam and paleolake triggered by the Meteor Crater impact at 56 ka Authors: Karlstrom, KE; Baisan, CH; Kring, DA; Hereford, R; Turney, C; Hogg, A; Norman, LM; O’Brien, P; Palmer, JG; Rittenour, TM; Ballensky, J; Crossey, LJ Abstract: This paper hypothesizes that the Meteor Crater impact in Arizona, USA, 56,000 years ago triggered landslides in Grand Canyon that dammed the Colorado River and formed Nan koweap paleolake. This is compatible with shock and earthquake physics for the impact that infer a M5.4 seismic event, attenuated to an effective magnitude of M3.5 at Grand Canyon. Results that support the hypothesis include radiocarbon dating of driftwood and lumines cence dating of associated slack-water lake sediments that are preserved in caves up to 60 m above the modern Colorado River. Radiocarbon ages from two locations, including Stanton’s Cave, date the driftwood as 55.25 ± 2.44 ka (n = 4). Sediments associated with the driftwood gave a luminescence age of 56.00 ± 6.39 ka (n = 2). These six Grand Canyon dates, and three published ages for the Meteor Crater impact, show statistically indistinguishable results that support the hypothesis for a geologically instantaneous series of events with a mean age of 55.60 ± 1.30 ka. This work highlights the value of radiocarbon dating near the limits of the technique, integration of multiple dating methods, and seismic and landslide hazards associ ated with meteorite impacts in regions of extreme topography like Grand Canyon. 2025-07-15T00:00:00Z http://hdl.handle.net/10453/195417 Title: Development of the Intcal Database Authors: Bronk Ramsey, C; Adolphi, F; Austin, W; Bard, E; Bayliss, A; Blaauw, M; Cheng, H; Edwards, RL; Friedrich, M; Heaton, T; Hogg, A; Hua, Q; Hughen, K; Kromer, B; Manning, S; Muscheler, R; Palmer, J; Pearson, C; Reimer, P; Reimer, R; Richards, D; Scott, M; Southon, J; Turney, C; Wacker, L Abstract: The IntCal family of radiocarbon (14C) calibration curves is based on research spanning more than three decades. The IntCal group have collated the 14C and calendar age data (mostly derived from primary publications with other types of data and meta-data) and, since 2010, made them available for other sorts of analysis through an open-access database. This has ensured transparency in terms of the data used in the construction of the ratified calibration curves. As the IntCal database expands, work is underway to facilitate best practice for new data submissions, make more of the associated metadata available in a structured form, and help those wishing to process the data with programming languages such as R, Python, and MATLAB. The data and metadata are complex because of the range of different types of archives. A restructured interface, based on the "IntChron"open-access data model, includes tools which allow the data to be plotted and compared without the need for export. The intention is to include complementary information which can be used alongside the main 14C series to provide new insights into the global carbon cycle, as well as facilitating access to the data for other research applications. Overall, this work aims to streamline the generation of new calibration curves. 2025-01-01T00:00:00Z http://hdl.handle.net/10453/195253 Title: Shortcuts for accelerating food system transitions Authors: Moallemi, EA; Hall, A; Leith, P; Miller, M; Sperling, F; Raven, R; Frantzeskaki, N; Palmer, J; Battaglia, M; Bruce, J; Hebinck, A; de Haan, F; Godde, C; Grigg, N; Boylan, S; Szetey, K; Chakori, S; Lema, Z; Onyango, E; Stafford-Smith, M; Whitten, S; McMillan, L Abstract: In light of ongoing global challenges of health, climate change, and food security, there is urgent need to transform our food systems. Here, we call for stakeholders to leverage collective wisdom garnered from more than two decades of sustainability transitions research into developing and implementing systemic approaches to shortcut theory to action and accelerate the transformation of global food systems. 2024-03-15T00:00:00Z