Results 91 to 100 of about 25,598 (206)

Obsidian provenance studies in the far eastern and northeastern regions of Russia and exchange networks in the prehistory of Northeast Asia

Documenta Praehistorica, 2019
This overview is based on the results of 25+ years of provenance studies to identify the sources of high-quality volcanic glass (obsidian) in prehistoric cultural complexes of the far eastern and northeastern regions of Russia (Maritime Province, the ...
Yaroslav V. Kuzmin
doaj   +1 more source

Gouge stability controlled by temperature elevation and obsidian addition in basaltic faults and implications for moonquakes

International Journal of Mining Science and Technology
Basalt is a major component of the earth and moon crust. Mineral composition and temperature influence frictional instability and thus the potential for seismicity on basaltic faults. We performed velocity-stepping shear experiments on basalt gouges at a
Shutian Cao, Fengshou Zhang, Mengke An, Derek Elsworth, Manchao He, Hai Liu, Luanxiao Zhao   +6 more
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L'eta' dell'ossidiana di Pantelleria

Atti della Accademia Peloritana dei Pericolanti : Classe di Scienze Fisiche, Matematiche e Naturali, 2007
Obsidian is a volcanic glass which was highly prized in prehistoric times. Since its chemical composition depends on the local characteristics of the lava flow, several analytical methods have been employed to establish the provenance of the obsidian ...
Rapisarda, Massimo
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Northern Vanuatu as a Pacific Crossroads: The Archaeology of Discovery, Interaction, and the Emergence of the "Ethnographic Present" [PDF]

, 2015
Northern Vanuatu is a significant crossroads region of the Southwest Pacific. This paper outlines current archaeological research being undertaken in the area, focusing on defining initial human settlement there some 3000 years ago and subsequent ...
Bedford, Stuart, Spriggs, Matthew
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The Techniques of Obsidian Treatment on the Malice Culture Settlement of Targowisko 11, Lesser Poland

Przegląd Archeologiczny, 2010
This article is devoted to the obsidian inventory from Targowisko 11 site associated with the Malice settlement. The years of research on this site resulted in the discovery of a very rich complex of obsidian debitage, consisting of several dozen ...
Jarosław Wilczyński
doaj  

Girikihaciyan: A Halafian Site in Southeastern Turkey [PDF]

, 1990
This report presents the results of excavations undertaken at the site of Girikihaciyan in southeastern Turkey during 1968 and 1970 by the Joint Prehistoric Project, Istanbul-Chicago under the overal direction of Professor Halet Cambel, University of ...
LeBlanc, Steven A., Watson, Patty Jo
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166 Genetically engineered tumor-infiltrating lymphocytes (cytoTIL15) exhibit IL-2-independent persistence and anti-tumor efficacy against melanoma in vivo

Journal for ImmunoTherapy of Cancer, 2021
Gabriel Helmlinger, Rachel Burga, Stanley Tam, Mithun Khattar, Scott Lajoie, Kyle Pedro, Colleen Foley, Alonso Villasmil Ocando, Jack Tremblay, Benjamin Primack, Meghan Langley, Dan Thornton, Emily Brideau, Theresa Ross, Gwen Wilmes, Sunandan Saha, Jeremy Tchaicha, Dhruv Sethi, Michelle Ols, Gary Vanasse, Shyam Subramanian, Jan ter Meulen   +21 more
doaj   +1 more source

Savanyú vulkáni üvegek ásványtan-geokémiai vizsgálata, petrológiai és vulkanológiai kiértékelése = Mineralogical and geochemical study of acid volcanic glasses, and its interpretation from petrological and volcanological point of view [PDF]

, 2009
Változatos lemeztektonikai környezetben képződött obszidián minták fő- és nyomelemtartalmának összehasonlító vizsgálata során megállapítottuk, hogy az eredetileg gránitokra kidolgozott diszkriminációs diagramok alkalmazhatók a savanyú kiömlési kőzetek ...
Balázs, Éva, Dobos, Erik, Rózsa, Péter, Simulák, József, Szakáll, Sándor   +4 more
core  

Geochemistry-based machine learning approach applied to an archaeological provenance study: the obsidian blades of Tulūl al-Baqarat (Iraq)

Frontiers in Earth Science
A machine learning approach was applied to geochemical analysis of nine obsidian blades discovered in the archaeological site of Tulūl al-Baqarat (4th millennium BCE, Iraq), aiming at unraveling the provenance of the natural material (volcanic glass ...
Gloria Vaggelli, Roberto Cossio, Alessandro Borghi, Carlo Lippolis, Stefano Ghignone   +4 more
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Towards an understanding of thermodynamic and kinetic controls on the formation of clay minerals from volcanic glass under various environmental conditions [PDF]

, 1996
lmogolite is the kinetically and thermodynamically favoured weathering product from rhyolitic volcanic glass in the soil-forming environment. However, on thermodynamic grounds imogolite would also appear to be the favoured alteration product of rhyolitic
Hodder, A.P.W., Lowe, David J., Naish, Timothy R.   +2 more
core   +1 more source