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
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...
Reposted by João Marreiros
From #Ferrara2025 to… #Faro2030! 🎉
We’re excited that #ICArEHB – Univ. Algarve will host the 12th International Conference on the #Mesolithic in Europe. For the 1st time, #MESO comes to Portugal 🇵🇹 Algarve awaits! ☀️
We’re excited that #ICArEHB – Univ. Algarve will host the 12th International Conference on the #Mesolithic in Europe. For the 1st time, #MESO comes to Portugal 🇵🇹 Algarve awaits! ☀️
October 3, 2025 at 3:36 PM
From #Ferrara2025 to… #Faro2030! 🎉
We’re excited that #ICArEHB – Univ. Algarve will host the 12th International Conference on the #Mesolithic in Europe. For the 1st time, #MESO comes to Portugal 🇵🇹 Algarve awaits! ☀️
We’re excited that #ICArEHB – Univ. Algarve will host the 12th International Conference on the #Mesolithic in Europe. For the 1st time, #MESO comes to Portugal 🇵🇹 Algarve awaits! ☀️
Reposted by João Marreiros
The ERC Project MATRIX explores one of the big questions in our past: how Neanderthals disappeared as modern humans spread across Europe. Meet the team behind it and learn more about our research on sediments, ancient DNA, proteins, lipids & human evolution
👉 matrix.icarehb.com
👉 matrix.icarehb.com
September 23, 2025 at 3:54 PM
The ERC Project MATRIX explores one of the big questions in our past: how Neanderthals disappeared as modern humans spread across Europe. Meet the team behind it and learn more about our research on sediments, ancient DNA, proteins, lipids & human evolution
👉 matrix.icarehb.com
👉 matrix.icarehb.com
Reposted by João Marreiros
We are happy to share the programme of speakers for our global symposium on lithic technology 🪨🔎
There are just a few spaces left for in-person participation! DM for more information.
You can join us online via this Zoom registration link: eu02web.zoom-x.de/webinar/regi...
There are just a few spaces left for in-person participation! DM for more information.
You can join us online via this Zoom registration link: eu02web.zoom-x.de/webinar/regi...
September 23, 2025 at 10:47 AM
We are happy to share the programme of speakers for our global symposium on lithic technology 🪨🔎
There are just a few spaces left for in-person participation! DM for more information.
You can join us online via this Zoom registration link: eu02web.zoom-x.de/webinar/regi...
There are just a few spaces left for in-person participation! DM for more information.
You can join us online via this Zoom registration link: eu02web.zoom-x.de/webinar/regi...
Reposted by João Marreiros
Mechanical experiments are in progress at TraCEr by @eduardopaixao.bsky.social, testing the impact of different raw materials on the crushing of raw tubers.
This study is part of broader research on early human behavior and percussive tool use at the Acheulean site of Melka Wakena, Ethiopia
This study is part of broader research on early human behavior and percussive tool use at the Acheulean site of Melka Wakena, Ethiopia
July 15, 2025 at 8:29 PM
Mechanical experiments are in progress at TraCEr by @eduardopaixao.bsky.social, testing the impact of different raw materials on the crushing of raw tubers.
This study is part of broader research on early human behavior and percussive tool use at the Acheulean site of Melka Wakena, Ethiopia
This study is part of broader research on early human behavior and percussive tool use at the Acheulean site of Melka Wakena, Ethiopia
Reposted by João Marreiros
📰 Underwater #archaeology in Denmark uncovers an 8,500-year-old Mesolithic coastal settlement, swallowed by rising sea levels
#ArchaeologyNews via @the-independent.com
www.independent.co.uk/news/science...
#ArchaeologyNews via @the-independent.com
www.independent.co.uk/news/science...
Settlement swallowed by rising sea levels discovered after 8,500 years
Animal bones and stone tools have been uncovered by divers so far
www.independent.co.uk
August 28, 2025 at 12:25 PM
📰 Underwater #archaeology in Denmark uncovers an 8,500-year-old Mesolithic coastal settlement, swallowed by rising sea levels
#ArchaeologyNews via @the-independent.com
www.independent.co.uk/news/science...
#ArchaeologyNews via @the-independent.com
www.independent.co.uk/news/science...
Reposted by João Marreiros
Human delivers an unusually clear picture of Homo sapiens as a species shaped by climate, animals, plants, other hominins and the interactions of its own nomadic groups. Bethan Ackerley is enthralled
Exploring humanity's ancient origins in fantastic new BBC documentary
Human delivers an unusually clear picture of Homo sapiens as a species shaped by climate, animals, plants, other hominins and the interactions of its own nomadic groups. Bethan Ackerley is enthralled
www.newscientist.com
August 26, 2025 at 5:53 PM
Human delivers an unusually clear picture of Homo sapiens as a species shaped by climate, animals, plants, other hominins and the interactions of its own nomadic groups. Bethan Ackerley is enthralled
Reposted by João Marreiros
Thousands of ancient bronze offerings… deliberately smashed. Why? We’re on a mission to find out – and now we have 3 more years to do it. 💪
#leizarchaeology #archaeology #research #olympia
#leizarchaeology #archaeology #research #olympia
August 13, 2025 at 7:43 AM
Thousands of ancient bronze offerings… deliberately smashed. Why? We’re on a mission to find out – and now we have 3 more years to do it. 💪
#leizarchaeology #archaeology #research #olympia
#leizarchaeology #archaeology #research #olympia
Reposted by João Marreiros
Back to Armenia, back to Dalarik-1 Cave, with a large international team from Armenia, Spain, Israel, Greece, France, Portugal, Italy & beyond! Let the excavation of this unique Middle Pleistocene site start! 🎉 #TransCause @humendylab.bsky.social
August 16, 2025 at 5:23 PM
Back to Armenia, back to Dalarik-1 Cave, with a large international team from Armenia, Spain, Israel, Greece, France, Portugal, Italy & beyond! Let the excavation of this unique Middle Pleistocene site start! 🎉 #TransCause @humendylab.bsky.social
www.publico.pt/2025/07/22/c... Excelente artigo do @ricardomgodinho.bsky.social! É exactamente isto quando nos perguntam sobre a relevância da Arqueologia e do conhecimento sobre o nosso passo!
@icarehb.bsky.social
@icarehb.bsky.social
Sou português, europeu, africano, asiático e do mundo
Somos uma clara mistura de povos e culturas. Muitos passaram por cá e nós também vamos mundo fora, no passado e ainda hoje (os dados da ONU de 2024 reportam 1,8 milhões de emigrantes portugueses).
www.publico.pt
July 23, 2025 at 7:04 AM
www.publico.pt/2025/07/22/c... Excelente artigo do @ricardomgodinho.bsky.social! É exactamente isto quando nos perguntam sobre a relevância da Arqueologia e do conhecimento sobre o nosso passo!
@icarehb.bsky.social
@icarehb.bsky.social