Results 171 to 180 of about 149,067 (320)

Comparison between the mechanical behavior of woven basalt and glass epoxy composites at high strain rates

, 2021
Elmahdy, Ahmed, Verleysen, Patricia
core   +1 more source

Volcanological constraints of Archaean tectonics [PDF]

Volcanological and trace element geochemical data can be integrated to place some constraints upon the size, character and evolutionary history of Archean volcanic plumbing, and hence indirectly, Archean tectonics.
Ayres, L. D., Thurston, P. C.
core   +1 more source

Lithic analysis in African archaeology: Advances and key themes

Archaeometry, EarlyView.
Abstract Stone artifacts (lithics) preserve for extended periods; thus they are key evidence for probing the evolution of human technological behaviors. Africa boasts the oldest record of stone artifacts, spanning 3.3 Ma, rare instances of ethnographic stone tool‐making, and stone tool archives from diverse ecological settings, making it an anchor for ...
Deborah I. Olszewski, Amanuel Beyin, Justin Pargeter   +2 more
wiley   +1 more source

Petrology of the basalt cores from Midway atoll [PDF]

, 1969
Gordon A. Macdonald
openalex   +1 more source

What can lithics tell us about hominin technology's ‘primordial soup’? An origin of stone knapping via the emulation of Mother Nature

Archaeometry, EarlyView.
Abstract The use of stone hammers to produce sharp stone flakes—knapping—is thought to represent a significant stage in hominin technological evolution because it facilitated the exploitation of novel resources, including meat obtained from medium‐to‐large‐sized vertebrates. The invention of knapping may have occurred via an additive (i.e., cumulative)
Metin I. Eren, Stephen J. Lycett, Michelle R. Bebber, Alastair Key, Briggs Buchanan, Emma Finestone, Joseph Benson, Rebecca Biermann Gürbüz, Adela Cebeiro, Roman Garba, Anne Grunow, C. Owen Lovejoy, Danielle MacDonald, Erica Maletic, G. Logan Miller, Joseph D. Ortiz, Jonathan Paige, Justin Pargeter, Tomos Proffitt, Mary Ann Raghanti, Teal Riley, Jeffrey I. Rose, David M. Singer, Robert S. Walker   +23 more
wiley   +1 more source

Bemerkungen über das sogenannte schlakkige Magneteisen aus dem Basalt von Unkel [PDF]

C. Rammelsberg
openalex   +1 more source

Detrital zircon and apatite (U‐Th)/He geochronology of intercalated baked sediments: a new approach to dating young basalt flows [PDF]

, 2011
Aciego, Aciego, Aciego, Blackburn, Blondes, Bristow, Dungan, Dungan, Farley, Farley, Flowers, Frances J. Cooper, Gardés, Gautheron, Hon, Hourigan, Jaeger, Kelley, Kip V. Hodges, Lipman, Lipman, Matthijs C. van Soest, McDougall, Min, Nasdala, Reiners, Schildgen, Schildgen, Self, Shuster, Vermeesch, Vermeesch, Wendt   +32 more
core   +1 more source

Tracking Bronze Age ‘itinerant smiths’ in western Poland: insights from Nd and Sr isotope data

Archaeometry, EarlyView.
Abstract The neodymium (Nd) isotope composition of stone casting moulds found in graves of Bronze Age ‘itinerant smiths’ in western Poland was analysed to determine the provenance of their raw materials. For the first time in archaeological research, the Nd model age (TDM)—a highly useful parameter in studying the provenance of geological materials—has
Mateusz Stróżyk, Łukasz Pospieszny, Zdzislaw Belka, Aldona Garbacz‐Klempka, Patrycja Silska, Marta Wardas‐Lasoń   +5 more
wiley   +1 more source

XXVIII. On the magnetic polarity of two rocks of basalt near Nürburg in the Eifel, with some observations on the extension of basalt in that district; drawn up from the observations of Bergmeister Schulze of Düren [PDF]

J. Nöggerath
openalex   +1 more source

Segregation vesicles in basaltic lava [PDF]

, 1967
Raymond E. Smith
openalex   +1 more source