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REVERSEACTION Project

@reverseaction.bsky.social

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Reverse engineering collective action: complex technologies in stateless societies. An archaeological project funded by an ERC Advanced Grant

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REVERSEACTION Project @reverseaction.bsky.social · Nov 18

Hello world, we are @reverseaction.bsky.social, an ERC-funded project on #archaeology, #science, #technology, #crafts, #luxury… and #collectiveaction. Allow us to introduce our project. And maybe you can follow and repost? 👀🥼

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REVERSEACTION Project @reverseaction.bsky.social · May 2

We are HIRING 🎉 REVERSEACTION are seeking a Research Assistant in Archaeometallurgy

PLEASE SHARE

🗓️Applications close May 30th 2025

➡️More info available at www.jobs.cam.ac.uk/job/51186/

#archaeologicalscience #archaeology #colombia #metallurgy #archaeometallurgy #materialsscience

Research Assistant in Archaeometallurgy (Fixed Term) - Job Opportunities - University of Cambridge

Research Assistant in Archaeometallurgy (Fixed Term) in the McDonald Institute for Archaeological Research at the University of Cambridge.

www.jobs.cam.ac.uk

REVERSEACTION Project @reverseaction.bsky.social · Apr 18

@justalittleroo.bsky.social would like you all to know that she was also there supporting her team from the side-lines (she got fomo and booked a holiday) and as such we have fixed the first photo accordingly #archaeologistoffduty #stillinamuseum

Two women pose with an ancient large stone sphere, with another woman photoshopped in

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REVERSEACTION Project @reverseaction.bsky.social · Apr 18

Thank you very much for the invitation and the hard work to the organisers from the Otto-Friedrich-University Bamberg, the German Mining Museum in Bochum, and the Museo Nacional de Costa Rica.

REVERSEACTION Project @reverseaction.bsky.social · Apr 18

Jasmine discussed the #computationalmodelling of #Muisca goldwork; and Marcos introduced the overarching goals and recent results of the #REVERSEACTION project.

REVERSEACTION Project @reverseaction.bsky.social · Apr 18

Lina talked about her work on #Malibú #goldwork and its role in local #ontologies in the Colombian Caribbean. In the words of Lina, it was "astonishing to see the similarities of the Costa Rican collections with the northern Colombian metalwork" 3/

REVERSEACTION Project @reverseaction.bsky.social · Apr 18

The workshop connected researchers working on the topic in the #IntermediateArea and #Mexico, revealing fascinating continuities and discontinuities in the use of metals by communities in the past, and sparking discussion on various approaches to their study and interpretation 2/ #archaeology

REVERSEACTION Project @reverseaction.bsky.social · Apr 18

In March, Lina María Campos Quintero, @jasminevieri.bsky.social, and Marcos Martinón-Torres participated in a workshop about #earlymetallurgy from Mexico to #Colombia, in San José, #CostaRica 1/

Two women take a selfie with a large ancient stone sphere

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REVERSEACTION Project @reverseaction.bsky.social · Apr 3

📢 New #OpenAccess publication in Open Archaeology 📢 We present the first comparative tech analysis of painted Pre-Hispanic ceramics from #Nariño, #Colombia, combining #GMM of 3D models, #pXRF, #Raman, and #SEM

Read here ➡️
www.degruyterbrill.com/document/doi... @degruyterbrill.bsky.social

Disentangling Technological Traditions: Comparative Analysis of Chaînes Opératoires of Painted Pre-Hispanic Ceramics From Nariño, Colombia

Occurring throughout the Americas, ceramics with negative decoration have been variously used as archaeological markers of chronology, provenance, ethnic affiliation, or cultural interaction. In the h...

www.degruyterbrill.com

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REVERSEACTION Project @reverseaction.bsky.social · Feb 11

PAID #INTERNSHIP for undergrads, with free accommodation in #Cambridge!

Projects in:
- Animal #SocialScience
- Physical Activity #Research
- #Archaeology
- #CognitiveScience
- Social Research

Please #SHARE & help us reach more individuals and HE Departments #wideningparticipation #scicomm

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Cambridge Archaeology @cam-archaeology.bsky.social · Feb 10

Thinking about postgrad research in the humanities and social sciences but not sure it’s for you?

Apply for our paid research experience internships by Friday 28 Feb to spend your summer with our incredible research community bit.ly/3PqhpRB

Join the @reverseaction.bsky.social team!

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REVERSEACTION Project @reverseaction.bsky.social · Jan 21

Preparing some resin-embedded ceramic samples for SEM-EDS analysis 🧐 for a full post on why we do this kind of analysis on ceramics scroll down our page 👀

#archaeology #archaeologicalscience #sampleprep

www.instagram.com/reel/DFFbUoI...

Welcome back to Instagram. Sign in to check out what your friends, family & interests have been capturing & sharing around the world.

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REVERSEACTION Project @reverseaction.bsky.social · Jan 13

Estos bloques contienen pequeños fragmentos de copas de Nariño (provenientes de objetos ya rotos), y esperamos investigar la composición de la pasta de arcilla. (3/3)

REVERSEACTION Project @reverseaction.bsky.social · Jan 13

🇨🇴 ¡Feliz Año Nuevo! ¡REVERSEACTION ya ha regresado a los laboratorios para preparar bloques pulidos para análisis con microscopía electrónica de barrido! (2/3)

REVERSEACTION Project @reverseaction.bsky.social · Jan 13

Happy New Year from REVERSEACTION who have been back in the labs already, preparing polished blocks for the SEM! These blocks contain small fragments of Nariño vessels (from already broken sherds) and we hope to investigate the clay fabric 💪 (1/3)

#ArchaeologicalScience #archaeology

Reposted by REVERSEACTION Project

Jasmine Vieri @jasminevieri.bsky.social · Dec 12

El material suplementario incluye un resumen extendido en español: ars.els-cdn.com/content/imag...

ars.els-cdn.com

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Jasmine Vieri @jasminevieri.bsky.social · Dec 12

All of the data and code are fully reproducible and publicly available on a dedicated repository: github.com/jmkvieri/BBLoP

Funded by AHRC, ERC (@reverseaction.bsky.social), and the Osk. Huttunen foundation.

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Jasmine Vieri @jasminevieri.bsky.social · Dec 12

6️⃣The new modelling tools are readily applicable beyond archaeometallurgy, e.g, to compositional studies on ceramics or glass, or even to modelling the variability of diets in isotopic studies

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Jasmine Vieri @jasminevieri.bsky.social · Dec 12

5️⃣The new tools were applied to the study of Muisca goldwork from pre-Hispanic Colombia (AD 600-1600). The findings suggest the intra-regional circulation of imported gold, with people pooling metals from a variety of geological sources for communal festivities.

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Jasmine Vieri @jasminevieri.bsky.social · Dec 12

4️⃣Hierarchical (multilevel) model specifications can simultaneously consider both local and regional patterns in past craft production activities, whilst also accounting for sampling uncertainty. Think of it as zooming in and out on the past!

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Jasmine Vieri @jasminevieri.bsky.social · Dec 12

3️⃣Variability in dispersion can tell us about behavioural factors in the past—like centralised control over resources or local improvisation. For example:

High dispersion ➡️ decentralised or improvised production
Low dispersion ➡️ more standardised practices

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Jasmine Vieri @jasminevieri.bsky.social · Dec 12

2️⃣Compositional averages are often used to identify the desired performance characteristics of materials or in reconstructing artefact provenance.

But what if compositional dispersions are just as revealing?

We move beyond averages in explicitly defining 4 main sources of compositional variability

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Jasmine Vieri @jasminevieri.bsky.social · Dec 12

1️⃣Compositional data are often skewed and heteroskedastic, making them challenging to model.

Traditional approaches within archaeology, such as simple linear regression on log-transformed data, can make numerically impossible predictions.

Beta regression is shown to be a more robust alternative

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Jasmine Vieri @jasminevieri.bsky.social · Dec 12

New paper out in JAS on beta regression models of compositional variability in craft production studies!

Huge thanks to co-authors @ercrema.bsky.social, María Alicia Uribe Villegas, Juanita Sáenz Samper and @martinontorres.bsky.social

www.sciencedirect.com/science/arti...

Key takeaways: 👇

Beyond baselines of performance: Beta regression models of compositional variability in craft production studies

Chemical analyses of archaeological artefacts are often used for provenance studies and for assessing whether specific performance characteristics wer…

www.sciencedirect.com

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REVERSEACTION Project @reverseaction.bsky.social · Dec 4

Photos via @archaeologyuk.bsky.social

REVERSEACTION Project @reverseaction.bsky.social · Dec 4

Congratulations to our Research Assistant Rosie @justalittleroo.bsky.social for winning the Early Career Archaeologist and Dissemination or Presentation Awards at the 2024 #ArchaeologicalAchievementAwards! 🎉

Rosie being presented with her award and certificate

Rosie standing with her award and certificate

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