João Marreiros
@jmarreiros.bsky.social
🔬 Archaeologist interested in how stone tools were used 🖐️Researcher at: @paleomonrepos.bsky.social @leizarchaeology.bsky.social
@tracer-leiza.bsky.social
@icarehb.bsky.social (www.joaomarreiros.com)
@tracer-leiza.bsky.social
@icarehb.bsky.social (www.joaomarreiros.com)
Reposted by João Marreiros
Live now over on YouTube!
@ucl.ac.uk Lunch Hour Lecture | The Cradle of Humanity: Protecting Tanzania's Human Artifacts
www.youtube.com/live/ODvAEv-...
#LocalAndGlobal
@ucl.ac.uk Lunch Hour Lecture | The Cradle of Humanity: Protecting Tanzania's Human Artifacts
www.youtube.com/live/ODvAEv-...
#LocalAndGlobal
Lunch Hour Lecture | The Cradle of Humanity: Protecting Tanzania's Human Artifacts
About the lecture:
The Cradle of Humanity: Protecting Tanzania's Human Artifacts
This talk reflects on 15 years of archaeological and conservation work at Olduvai Gorge, Tanzania, approached through ...
www.youtube.com
December 2, 2025 at 1:01 PM
Live now over on YouTube!
@ucl.ac.uk Lunch Hour Lecture | The Cradle of Humanity: Protecting Tanzania's Human Artifacts
www.youtube.com/live/ODvAEv-...
#LocalAndGlobal
@ucl.ac.uk Lunch Hour Lecture | The Cradle of Humanity: Protecting Tanzania's Human Artifacts
www.youtube.com/live/ODvAEv-...
#LocalAndGlobal
I am very happy to see this published! Congratulations 🥳 to Okopi Ade, it was a pleasure to have you in our lab at @tracer-leiza.bsky.social @paleomonrepos.bsky.social @leizarchaeology.bsky.social We all learned a lot
December 2, 2025 at 1:37 PM
I am very happy to see this published! Congratulations 🥳 to Okopi Ade, it was a pleasure to have you in our lab at @tracer-leiza.bsky.social @paleomonrepos.bsky.social @leizarchaeology.bsky.social We all learned a lot
Reposted by João Marreiros
🪓 Stone flakes = ancient tool care? #ICArEHB's David Nora's introduces a module flake approach in his new paper: doi.org/10.1007/s108...
#Lithics #Archaeology
#Lithics #Archaeology
Snakes and Ladders: A technological approach to tool maintenance byproducts using module flake categories - Journal of Archaeological Method and Theory
The study of retouching, reshaping, and rejuvenation in lithic technology has traditionally focused on finished tools, overlooking the byproducts of these processes, particularly microdebitage. This e...
doi.org
November 28, 2025 at 11:47 AM
🪓 Stone flakes = ancient tool care? #ICArEHB's David Nora's introduces a module flake approach in his new paper: doi.org/10.1007/s108...
#Lithics #Archaeology
#Lithics #Archaeology
Reposted by João Marreiros
The #LandscapesofConflict conference is underway.
Until Friday, international experts are exploring how conflicts have shaped landscapes and human–environment interactions for more than 6,000 years. A deep-time perspective on a pressing global issue.
#LEIZArchaeology #ConflictArchaeology #Research
Until Friday, international experts are exploring how conflicts have shaped landscapes and human–environment interactions for more than 6,000 years. A deep-time perspective on a pressing global issue.
#LEIZArchaeology #ConflictArchaeology #Research
November 27, 2025 at 1:48 PM
The #LandscapesofConflict conference is underway.
Until Friday, international experts are exploring how conflicts have shaped landscapes and human–environment interactions for more than 6,000 years. A deep-time perspective on a pressing global issue.
#LEIZArchaeology #ConflictArchaeology #Research
Until Friday, international experts are exploring how conflicts have shaped landscapes and human–environment interactions for more than 6,000 years. A deep-time perspective on a pressing global issue.
#LEIZArchaeology #ConflictArchaeology #Research
Reposted by João Marreiros
Friends, please consider contributing to this initiative to give African scholars opportunities to date archaeological sites they work on. This is organised by the Society of Africanist Archaeologists.
gofund.me/2324ee20a
gofund.me/2324ee20a
Donate to Support the African Chronometric Dating Fund (ACDF), organized by Jacques Aymeric-Nsangou
Africa is the cradle of humankind, where our species first ev… Jacques Aymeric-Nsangou needs your support for Support the African Chronometric Dating Fund (ACDF)
gofund.me
November 26, 2025 at 2:24 PM
Friends, please consider contributing to this initiative to give African scholars opportunities to date archaeological sites they work on. This is organised by the Society of Africanist Archaeologists.
gofund.me/2324ee20a
gofund.me/2324ee20a
Reposted by João Marreiros
Reposted by João Marreiros
The authors of a Comment article in Nature discuss Contributor Role Taxonomy (CRediT), a tool for clarifying the roles of each author of a research paper and call for CRediT to become the norm, to support researchers and research integrity across the whole academic landscape. #Academicsky 🧪
A ten-year drive to credit authors for their work — and why there’s still more to do
Information about the roles of each author of a paper can help to build trust, integrity and responsible research assessment. Coordinated efforts are needed to consolidate progress.
go.nature.com
November 25, 2025 at 5:20 PM
The authors of a Comment article in Nature discuss Contributor Role Taxonomy (CRediT), a tool for clarifying the roles of each author of a research paper and call for CRediT to become the norm, to support researchers and research integrity across the whole academic landscape. #Academicsky 🧪
Reposted by João Marreiros
Project Coordinator – University of Cambridge, UK
ERC-funded STEPS project in #HumanEvolution Research
Deadline: 2 Jan 2026
🔗 Details: higherjobz.com/project-coor...
#UKJobs #AcademicJobs #PartTimeJobs #ResearchOpportunities #ERCFunded
@universitypress.cambridge.org @mcdonaldinstitute.bsky.social
ERC-funded STEPS project in #HumanEvolution Research
Deadline: 2 Jan 2026
🔗 Details: higherjobz.com/project-coor...
#UKJobs #AcademicJobs #PartTimeJobs #ResearchOpportunities #ERCFunded
@universitypress.cambridge.org @mcdonaldinstitute.bsky.social
Project Coordinator – Human Evolution Research Cambridge | HigherJobz
Join the University of Cambridge as a Project Coordinator in Human Evolution Research. Part-time, fixed-term, apply by 2 Jan 2026.
higherjobz.com
November 21, 2025 at 11:51 AM
Project Coordinator – University of Cambridge, UK
ERC-funded STEPS project in #HumanEvolution Research
Deadline: 2 Jan 2026
🔗 Details: higherjobz.com/project-coor...
#UKJobs #AcademicJobs #PartTimeJobs #ResearchOpportunities #ERCFunded
@universitypress.cambridge.org @mcdonaldinstitute.bsky.social
ERC-funded STEPS project in #HumanEvolution Research
Deadline: 2 Jan 2026
🔗 Details: higherjobz.com/project-coor...
#UKJobs #AcademicJobs #PartTimeJobs #ResearchOpportunities #ERCFunded
@universitypress.cambridge.org @mcdonaldinstitute.bsky.social
Reposted by João Marreiros
It's time for another episode of The Archaeology Show!
There’s a lot of Neanderthal research in the news these days and the first two articles highlight some of those achievements.
There’s a lot of Neanderthal research in the news these days and the first two articles highlight some of those achievements.
November 18, 2025 at 10:20 PM
It's time for another episode of The Archaeology Show!
There’s a lot of Neanderthal research in the news these days and the first two articles highlight some of those achievements.
There’s a lot of Neanderthal research in the news these days and the first two articles highlight some of those achievements.
Reposted by João Marreiros
A paper in Nature Communications presents archaeology of the Namorotukunan site in Kenya’s Turkana Basin, and the study’s findings suggests continuity in tool-making practices over 300,000 years, with evidence of systematic selection of rock types. go.nature.com/3WJnBrK 🏺 🧪
November 8, 2025 at 8:49 PM
A paper in Nature Communications presents archaeology of the Namorotukunan site in Kenya’s Turkana Basin, and the study’s findings suggests continuity in tool-making practices over 300,000 years, with evidence of systematic selection of rock types. go.nature.com/3WJnBrK 🏺 🧪
Reposted by João Marreiros
5 Postdoctoral & 9 Doctoral Researchers – Kiel University, Germany
Fully funded positions in ROOTS Cluster: #archaeology, #humanities, social-environmental research
Deadline: 15 Dec 2025
🔗 higherjobz.com/postdoctoral...
#PhDPosition #PostdocJobs #AcademicJobs @clusterroots.bsky.social @uni-kiel.de
Fully funded positions in ROOTS Cluster: #archaeology, #humanities, social-environmental research
Deadline: 15 Dec 2025
🔗 higherjobz.com/postdoctoral...
#PhDPosition #PostdocJobs #AcademicJobs @clusterroots.bsky.social @uni-kiel.de
Postdoctoral & PhD Research Jobs at Kiel University | HigherJobz
Apply for 5 Postdoctoral & 9 PhD positions at Kiel University in archaeology, humanities & social-environmental research. Deadline: 15 Dec 2025.
higherjobz.com
November 5, 2025 at 10:20 AM
5 Postdoctoral & 9 Doctoral Researchers – Kiel University, Germany
Fully funded positions in ROOTS Cluster: #archaeology, #humanities, social-environmental research
Deadline: 15 Dec 2025
🔗 higherjobz.com/postdoctoral...
#PhDPosition #PostdocJobs #AcademicJobs @clusterroots.bsky.social @uni-kiel.de
Fully funded positions in ROOTS Cluster: #archaeology, #humanities, social-environmental research
Deadline: 15 Dec 2025
🔗 higherjobz.com/postdoctoral...
#PhDPosition #PostdocJobs #AcademicJobs @clusterroots.bsky.social @uni-kiel.de
Reposted by João Marreiros
seafront-project.com/post/calibra...
Largest dataset on Mg/Ca in shells yet (+100 and over a dozen sites)🐚 Again, we found tightly correlated but shell-specific relationships between temperature and Mg/Ca. Lots of potential for future archaeological studies🏺
@leizarchaeology.bsky.social
Largest dataset on Mg/Ca in shells yet (+100 and over a dozen sites)🐚 Again, we found tightly correlated but shell-specific relationships between temperature and Mg/Ca. Lots of potential for future archaeological studies🏺
@leizarchaeology.bsky.social
Calibrating the limpet | SeaFront
Our new study delivers the most extensive calibration to date of <i>Patella caerulea</i> (the Mediterranean limpet) as a recorder of sea surface temperatures (SSTs) across the Central and Eastern Medi...
seafront-project.com
November 2, 2025 at 9:53 AM
seafront-project.com/post/calibra...
Largest dataset on Mg/Ca in shells yet (+100 and over a dozen sites)🐚 Again, we found tightly correlated but shell-specific relationships between temperature and Mg/Ca. Lots of potential for future archaeological studies🏺
@leizarchaeology.bsky.social
Largest dataset on Mg/Ca in shells yet (+100 and over a dozen sites)🐚 Again, we found tightly correlated but shell-specific relationships between temperature and Mg/Ca. Lots of potential for future archaeological studies🏺
@leizarchaeology.bsky.social
Excited to share our new publication, led by the amazing Anastasia and @youssefdjellal.bsky.social! We show that CNNs can help not only with classifying traces of use, but also on how to acquire imaging data 🔬 @icarehb.bsky.social @leizarchaeology.bsky.social
New paper out! 🎉 We explore how deep learning (CNNs) can classify polish on experimental flint tools based on contact material and use intensity. www.nature.com/articles/s41...
Classifying polish in use-wear analysis with convolutional neural networks - Scientific Reports
Scientific Reports - Classifying polish in use-wear analysis with convolutional neural networks
www.nature.com
October 30, 2025 at 6:28 AM
Excited to share our new publication, led by the amazing Anastasia and @youssefdjellal.bsky.social! We show that CNNs can help not only with classifying traces of use, but also on how to acquire imaging data 🔬 @icarehb.bsky.social @leizarchaeology.bsky.social
Don’t miss this one 👇🏼 join us next year at the @caaint.bsky.social and show us your innovative computer applications to the study archaeological artefacts!
#ICArEHB PhD student Anastasia Eleftheriadou & researcher João Marreiros co-organise CAA2026 Session 13: “If I Had a Hammer, I’d 3D-Scan It: Computational Approaches for Tool Analysis.” 🛠️
2026.caaconference.org
📝 Submission deadline extended: 9 Nov 2025
#ICArEHB #CAA2026 #ComputationalArchaeology
2026.caaconference.org
📝 Submission deadline extended: 9 Nov 2025
#ICArEHB #CAA2026 #ComputationalArchaeology
October 30, 2025 at 6:19 AM
Don’t miss this one 👇🏼 join us next year at the @caaint.bsky.social and show us your innovative computer applications to the study archaeological artefacts!
Reposted by João Marreiros
New paper out! 🎉 We explore how deep learning (CNNs) can classify polish on experimental flint tools based on contact material and use intensity. www.nature.com/articles/s41...
Classifying polish in use-wear analysis with convolutional neural networks - Scientific Reports
Scientific Reports - Classifying polish in use-wear analysis with convolutional neural networks
www.nature.com
October 27, 2025 at 2:28 PM
New paper out! 🎉 We explore how deep learning (CNNs) can classify polish on experimental flint tools based on contact material and use intensity. www.nature.com/articles/s41...
Reposted by João Marreiros
#ICArEHB PhD candidate Osama Samawi explores ancient innovation in his new blog post “Stone Tools on Repeat” with @ACORJordan 🪨
Discover how #Neolithic communities at Tell Abu Suwwan reused stone flakes as cores — early #sustainability in #Archaeology!
👉 publications.acorjordan.org/2025/10/17/s...
Discover how #Neolithic communities at Tell Abu Suwwan reused stone flakes as cores — early #sustainability in #Archaeology!
👉 publications.acorjordan.org/2025/10/17/s...
October 27, 2025 at 11:52 AM
#ICArEHB PhD candidate Osama Samawi explores ancient innovation in his new blog post “Stone Tools on Repeat” with @ACORJordan 🪨
Discover how #Neolithic communities at Tell Abu Suwwan reused stone flakes as cores — early #sustainability in #Archaeology!
👉 publications.acorjordan.org/2025/10/17/s...
Discover how #Neolithic communities at Tell Abu Suwwan reused stone flakes as cores — early #sustainability in #Archaeology!
👉 publications.acorjordan.org/2025/10/17/s...
Reposted by João Marreiros
Join us in Mainz for Landscapes of #Conflict: Archaeological Perspectives from #Prehistory to the #MiddleAges — an international #conference exploring how conflict and peace shaped human–environment interactions through time.
📅 26–28 Nov 2025 | 🏛️ LEIZA, Mainz
www.leiza.de/kalender/det...
📅 26–28 Nov 2025 | 🏛️ LEIZA, Mainz
www.leiza.de/kalender/det...
October 27, 2025 at 9:15 AM
Join us in Mainz for Landscapes of #Conflict: Archaeological Perspectives from #Prehistory to the #MiddleAges — an international #conference exploring how conflict and peace shaped human–environment interactions through time.
📅 26–28 Nov 2025 | 🏛️ LEIZA, Mainz
www.leiza.de/kalender/det...
📅 26–28 Nov 2025 | 🏛️ LEIZA, Mainz
www.leiza.de/kalender/det...
Reposted by João Marreiros
What an amazing second day at CONEXP 2025! It’s been an inspiring day filled with presentations, discussions, cultural activities, and fresh perspectives on diverse topics. We’re excited for tomorrow! #conexp2025
October 23, 2025 at 6:25 PM
What an amazing second day at CONEXP 2025! It’s been an inspiring day filled with presentations, discussions, cultural activities, and fresh perspectives on diverse topics. We’re excited for tomorrow! #conexp2025
I am very sorry to have missed this! I heard it was great! Amazing organisation
That’s a wrap on Day 3! Another fantastic day filled with incredible presentations — a big thank you goes out to all of our presenters and attendees. We can’t wait to see you all tomorrow for a full day of experimental archaeology demonstrations at the Préhistomuseum!
October 24, 2025 at 8:29 PM
I am very sorry to have missed this! I heard it was great! Amazing organisation
Reposted by João Marreiros
And...one week from today!
Come in person or tune in @leizarchaeology.bsky.social
Come in person or tune in @leizarchaeology.bsky.social
Don’t miss Prof. Albert Hafner’s lecture on prehistoric lakeshore life in the Alps & Balkans!
📅 Thu, Oct 30 · 18:00
📍 LEIZA Mainz + online
#Archaeology #LEIZArchaeology #lecture #research
📅 Thu, Oct 30 · 18:00
📍 LEIZA Mainz + online
#Archaeology #LEIZArchaeology #lecture #research
October 23, 2025 at 11:22 AM
And...one week from today!
Come in person or tune in @leizarchaeology.bsky.social
Come in person or tune in @leizarchaeology.bsky.social
Reposted by João Marreiros
Anyone wishing a master class on changing the world for the better, without becoming negative, cynical, angry or narrow-minded, could model after Jane Goodall.
Jane Goodall, the gentle disrupter whose research on chimpanzees redefined what it meant to be human 🏺🧪
theconversation.com/jane-goodall...
Jane Goodall, the gentle disrupter whose research on chimpanzees redefined what it meant to be human 🏺🧪
theconversation.com/jane-goodall...
October 24, 2025 at 4:05 PM
Anyone wishing a master class on changing the world for the better, without becoming negative, cynical, angry or narrow-minded, could model after Jane Goodall.
Jane Goodall, the gentle disrupter whose research on chimpanzees redefined what it meant to be human 🏺🧪
theconversation.com/jane-goodall...
Jane Goodall, the gentle disrupter whose research on chimpanzees redefined what it meant to be human 🏺🧪
theconversation.com/jane-goodall...
Reposted by João Marreiros
Published today: One of the biggest #science #communication studies to date. We asked 71,922 people in 68 countries how they #engage with information about #science and combined the data with several country-level factors: journals.sagepub.com/doi/10.1177/... #OpenAccess
October 21, 2025 at 12:27 PM
Published today: One of the biggest #science #communication studies to date. We asked 71,922 people in 68 countries how they #engage with information about #science and combined the data with several country-level factors: journals.sagepub.com/doi/10.1177/... #OpenAccess
Reposted by João Marreiros
📄 New paper 📣 of @matrixerc.bsky.social & @welkergroup.bsky.social! We show that microstratigraphic-scale #paleoproteomics works in intact sediments - opening new ways to explore ancient ecosystems & hominin behaviour 🌍🦴
@erc.europa.eu @icarehb.bsky.social 🔗 academic.oup.com/pnasnexus/ar...
@erc.europa.eu @icarehb.bsky.social 🔗 academic.oup.com/pnasnexus/ar...
New methods on the block: Taxonomic identification of archaeological bones in resin-embedded sediments through paleoproteomics
Abstract. The integration of biomolecular studies of past organisms with geoarchaeological studies can significantly improve our understanding of the relat
academic.oup.com
October 14, 2025 at 10:28 AM
📄 New paper 📣 of @matrixerc.bsky.social & @welkergroup.bsky.social! We show that microstratigraphic-scale #paleoproteomics works in intact sediments - opening new ways to explore ancient ecosystems & hominin behaviour 🌍🦴
@erc.europa.eu @icarehb.bsky.social 🔗 academic.oup.com/pnasnexus/ar...
@erc.europa.eu @icarehb.bsky.social 🔗 academic.oup.com/pnasnexus/ar...
Reposted by João Marreiros
🔥 Next #LEXA Seminar!
Dr William Chase Murphree will explore #fire use during the #UpperPalaeolithic, using #geoarchaeology experiments to reveal how humans managed fire in glacial times.
🗓️ 7 Oct, 14:00 GMT | 🌍 Online
🔗 Register: zoom.us/meeting/regi...
Dr William Chase Murphree will explore #fire use during the #UpperPalaeolithic, using #geoarchaeology experiments to reveal how humans managed fire in glacial times.
🗓️ 7 Oct, 14:00 GMT | 🌍 Online
🔗 Register: zoom.us/meeting/regi...
October 3, 2025 at 9:11 AM
🔥 Next #LEXA Seminar!
Dr William Chase Murphree will explore #fire use during the #UpperPalaeolithic, using #geoarchaeology experiments to reveal how humans managed fire in glacial times.
🗓️ 7 Oct, 14:00 GMT | 🌍 Online
🔗 Register: zoom.us/meeting/regi...
Dr William Chase Murphree will explore #fire use during the #UpperPalaeolithic, using #geoarchaeology experiments to reveal how humans managed fire in glacial times.
🗓️ 7 Oct, 14:00 GMT | 🌍 Online
🔗 Register: zoom.us/meeting/regi...