Investiga tions into social imaginaries have burgeoned in recent years. From 'the capitalist imaginary' to the 'democratic imaginary', from the 'ecological imaginary' to 'the global imaginary' -and beyond -the social imaginaries fi eld has expanded across disciplines and beyond the academy. Th e recent debates on social imaginaries and potential new imaginaries reveal a recognisable fi eld and paradigm-in-the-making. We argue that Castoriadis, Ricoeur, and Taylor have articulated the most important theoretical frameworks for understanding social imaginaries, although the fi eld as a whole remains heterogeneous. We further argue that the notion of social imaginaries draws on the modern understanding of the imagination as authentically creative (as opposed to imitative). We contend that an elaboration of social imaginaries involves a signifi cant, qualitative shift in the understanding of societies as collectively and politically-(auto)instituted formations that are irreducible to inter-subjectivity or systemic logics. After marking out the contours of the fi eld and recounting a philosophical history of the imagination (including deliberations on the reproductive and creative imaginations, as well as consideration of contemporary Japanese contributions), the essay turns to debates on social imaginaries in more concrete contexts, specifi cally political-economic imaginaries, the ecological imaginary, multiple modernities and their intercivilisational encounters. Th e social imaginaries fi eld imparts powerful messages for the human sciences and wider publics. In particular, social imaginaries hold signifi cant implications for ontological, phenomenological and philosophical anthropological questions; for the cultural, social, and political horizons of contemporary worlds; and for ecological and economic phenomena (including their manifest crises). Th e essay concludes with the argument that social imaginaries as a paradigm-in-the-making off ers valuable means by which movements towards social change can be elucidated as well providing an open horizon for the critiques of existing social practices.

It has been estimated that up to 25% of Indigenous human remains held in Australian institutions are unprovenanced. Geochemical tracers like strontium isotope ratios (87Sr/86Sr) have been used globally for over 40 years to discern human provenance and provide independent data to aid in repatriation efforts. To reliably apply this technology, landscape 87Sr/86Sr isotope ratio variability must be quantified. In Australia, only a few studies have used this technique and they are lacking in detail. Here, we present Australia's first regional strontium isotope ratio variability study. We measured strontium isotope ratios in soil, plant, water, and faunal material throughout Cape York, Queensland, the most northerly point of mainland Australia. Results show a close correlation between surface soil leachates, vegetation, surface water, and faunal 87Sr/86Sr results with extremely high values (0.78664) associated with ancient Precambrian geology. Our study suggests that measuring 87Sr/86Sr in soil and plant samples offer a reliable approach for assessing regional Sr isotope distribution, although the inclusion of mammal and freshwater samples is also important to assess exogenous inputs. This study provides an important tool for modern and prehistoric provenance studies and may aid in answering some of Australia's most enduring archaeological questions.

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