Results 141 to 150 of about 14,134 (261)

Inverse Grading Emerges From Particle‐Scale Migration Under Seasonal Freeze‐Thaw Forcing: Evidence From Multi‐Year Monitoring and Physical Modeling

Geophysical Research Letters, Volume 53, Issue 6, 28 March 2026.
Abstract Inverse grading, where coarse particles overlay finer materials, is common on talus slopes, yet its progressive formation under realistic conditions is rarely quantified. We integrate multi‐year field observations with controlled freeze‐thaw experiments to elucidate the processes driving particle migration that result in inverse grading and ...
Weibo Li, Qinglu Deng, Limin Zhang, Pengju An, Xingwei Ren, Xuexue Su, Ruiqiang Bai, Jiren Xie, Li Zeng, Kun Fang   +9 more
wiley   +1 more source

Modeling the Transport and Dispersion of Volcanic Co‐PDC Ash Clouds Using NAME: An Evaluation of Source Geometry and Mass Eruption Rate

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 6, 28 March 2026.
Abstract Pyroclastic density currents (PDCs) are gravity currents that frequently form during explosive volcanic eruptions. These ground‐hugging density currents consist of high‐temperature mixtures of pyroclasts (e.g., ash, pumice), lithics, and gas.
M. Hagenbourger, F. M. Beckett, T. J. Jones, S. L. Engwell   +3 more
wiley   +1 more source

Variabilidad en la producción de palas y/o azadas líticas de la Puna argentina

Estudios Atacameños, 2010
Se analiza desde una perspectiva técnico-morfológica el conjunto de palas y/o azadas líticas provenientes de dos regiones distintas de la Puna argentina: sitio Casa Chávez Montículo (depto.
Susana Pérez
doaj  

Facies analysis, biostratigraphy, and provenance of the late Neogene Seulimeum Formation, Northwest Aceh basin, Sumatra (Indonesia). [PDF]

Heliyon, 2023
Nugraha GS, Sunardi E, Haryanto I, Adhiperdana BG, Fakhruddin R, Fitriany R, Gunarsih D.   +6 more
europepmc   +1 more source

Lithic Miniaturization Provides a Signature of an MIS4-3 Southern Dispersal of Homo sapiens. [PDF]

Evol Anthropol
Shipton C.
europepmc   +1 more source

Multiproxy study reveals equality in the deposition of flaked lithic grave goods from the Baltic Stone Age cemetery Zvejnieki (Latvia). [PDF]

PLoS One
Petrović A, Bates J, Macāne A, Zagorska I, Edmonds M, Nordqvist K, Little A.   +6 more
europepmc   +1 more source

Lithic Assemblage

Scottish Archaeological Internet Reports
Archaeological excavations conducted in 2017 at Grantown Road, Forres form the final phase of works on a residential development that began in 2002. The earlier works examined an area of more than 70ha and confirmed the presence of an extensive Iron Age settlement represented by ring-ditch, ring-groove, and post-ring structures, in association with ...
openaire   +1 more source

Novel archaeological and palaeontological findings in cave and palaeoriver landscapes of inland northeast Arabia. [PDF]

PLoS One
Groucutt HS, Stewart M, Al-Jibreen F, Al-Qahtani M, Al-Shanti M, Andrieux E, Blinkhorn J, Boivin N, Breeze PS, Drake N, Memesh A, Mufarreh Y, Price G, Scerri EML, Vanwezer N, Vonhof H, Zalmout I, Alsharekh AM, Petraglia MD.   +18 more
europepmc   +1 more source

Earliest evidence of elephant butchery at Olduvai Gorge (Tanzania) reveals the evolutionary impact of early human megafaunal exploitation. [PDF]

Elife
Dominguez-Rodrigo M, Baquedano E, Moclan A, Uribelarrea D, Corre-Cano JA, Diez-Martin F, Velazquez-Tello A, Organista E, Mendez-Quintas E, Vegara-Riquelme M, Gidna A, Mabulla A.   +11 more
europepmc   +1 more source

Cultural, economic, and settlement shifts over the last 9,000 years at Kakapel Rockshelter, Western Kenya. [PDF]

PLoS One
Goldstein ST, Mueller NG, Finestone E, Sawchuk EA, Juengst S, Otwani AO, Miller JM, Langley MC, Fernandes R, Steinhof A, Iminjili V, Chepkorir C, Janzen A, Ogola C, Ndiema E, Petraglia M, Boivin N.   +16 more
europepmc   +1 more source