This study supports restoring the famous #Schoeningen spears to a 300 KA date at end of the MIS 9 interglacial. One from last year was placing them much more recent, around 200 KA

#archaeology #stratigraphy #MiddlePleistocene

https://www.sciencedirect.com/science/article/pii/S1040618226001436

#WeekendReading: Tangunan et al.'s short but insightful piece on the uncertainties behind Earth’s timelines.

Link: https://pastglobalchanges.org/publications/pages-magazines/pages-magazine/138913

#EarthSci #Stratigraphy #Geochronology

Excavation workflows are evolving 📊⛏️
Matteo Rossi introduces QField, a free, open-source mobile #GIS system designed specifically for the field. By linking QGIS workflows with high-accuracy GNSS, teams can now capture #stratigraphy precisely in real-time.
Learn more in AAP's latest FirstView article

http://cambridge.org/core/journals/advances-in-archaeological-practice/article/lets-dig-with-qfield-a-foss-mobile-gis-management-system-for-archaeological-excavation/64FCEB9D018DBBE139D606DE80907CFE

Let’s Dig with QField! A F/OSS Mobile GIS Management System for Archaeological Excavation | Advances in Archaeological Practice | Cambridge Core

Let’s Dig with QField! A F/OSS Mobile GIS Management System for Archaeological Excavation

Cambridge Core

Redate on the controversial Monte Verde site in Chile to a much younger age of ~8000 to 4000 years old.

"the landscape is different now, with more sites that appear to be older than the Clovis culture...their findings highlight the need for independent verification of old archeological sites.'

#Americas #archaeology #stratigraphy

https://www.science.org/doi/10.1126/science.aef9954?utm_source=sfmc&utm_medium=email&utm_content=alert&utm_campaign=SCIeToc&et_rid=34814771&et_cid=5907646

Neogene Uplift Of The Chiribiquete Tabletop Mountains In The Colombian Amazon And Its Paleobiogeographic Implications
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https://doi.org/10.1016/j.palaeo.2026.113645 <-- shared paper
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H/T Richard F. Ott
“The Chiribiquete are table top mountains located deep in the Colombian Amazon and host many rare endemic species. Helanlin Xiang's work shows that the Chiribiquete Mountains likely upifted before the Early Miocene and could have acted as a long-lived stepping stone, connecting species in the Andes with the Guyana Shield…”
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#Miocene #Paleogeography #Palynology #Amazonia #Caquetá #paleobiogeography #Columbia #Amazon #jungle #geomorphology #neogene #uplift #geology #structuralgeology #tectonics #Chiribiquete #tabletopmountains #Andes #GuyanaShield #dating #isotopes #biome #ecosystem #tepui #elevation #sedimentology #stratigraphy #Araracuara #fluvial #lacustrine #deposition orogeny #regional #uplift #drainage #hydrography #hydrology #river #network #GIS #spatial #mapping #spatialanalysis #spatiotemporal #geophysics #seismology

Always great to see a bit of humour in scientific papers! Indeed, pesky animals can really mess up your stratigraphy ...

From: Flower 1952, http://www.jstor.org/stable/1299958

#Palaeontology #Stratigraphy

Facies (Petrology 💎)

In geology, a facies is a body of rock with distinctive characteristics. The characteristics can be any observable attribute of rocks and the changes that may occur in those attributes over a geographic area. A facies encompasses all the characteristics of a rock including its chemical, physical, and biological features that distinguish it from adjacent rock. The term "facies" was i...

https://en.wikipedia.org/wiki/Facies

#Facies #Petrology #Stratigraphy #SedimentaryRocks

Facies - Wikipedia

Dip-slip fault (Geology ⛰️)

In geology, a fault is a planar fracture or discontinuity in a volume of rock across which there has been significant displacement as a result of rock-mass movements. Large faults within Earth's crust result from the action of plate tectonic forces, with the largest forming the boundaries between the plates, such as the megathrust f...

https://en.wikipedia.org/wiki/Dip-slip_fault

#DipSlipFault #EarthSCrust #Stratigraphy #Faults #StructuralGeology #TectonicLandforms

Fault (geology) - Wikipedia