Results 81 to 90 of about 26,069 (224)
Magallania, 2012 En el Parque Nacional Monte León y el Campo Volcánico Pali Aike se han recuperado un núcleo y dos lascas de obsidiana gris porfírica riolítica, la cual es químicamente diferente a los tipos más comunes de obsidianas (negra, gris verdosa veteada y verde ...
CHARLES R STERN +3 more
doaj
Unravelling textural heterogeneity in obsidian:shear-induced outgassing in the Rocche Rosse flow [PDF]
, 2015 Obsidian flow emplacement is a complex and understudied aspect of silicic volcanism. Of particular importance is the question of how highly viscous magma can lose sufficient gas in order to erupt effusively as a lava flow.
Baumgartner, L. +6 more
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Research Reports from the Programme for Belize Archaeological Project, Volume Three [PDF]
, 2009 Table of Contents : Archaeological Investigations of the Programme for Belize Archaeological Project: An Introduction to Volume Three / by Fred Valdez, Jr. and Rissa M.
Trachman, Rissa M., Valdez, Fred Jr
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Open Archaeology, 2020 At Ustica island (Palermo, Italy), in the area of Casa dei Francesi, 119 fragments of obsidian artifacts were collected on the surface of an agricultural field at an altitude of 50 m asl.
Martin Franco Foresta +4 more
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Morphology of Lipari offshore (Southern Tyrrhenian Sea) [PDF]
, 2016 High-resolution multibeam bathymetry was recently collected around Lipari, the largest and most densely populated island of the Aeolian Archipelago (Southern Tyrrhenian Sea).
Bosman, A. +4 more
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Transcarpathian contacts of the Late Glacial Societies of the Polish Lowlands
Przegląd Archeologiczny, 2015 Identification of exotic raw-materials discovered within the context of Late Glacial societies of the North European Plain is a crucial factor in discussion about far-reaching exchange systems of goods and ideas.
Iwona Sobkowiak-Tabaka +5 more
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Viscoelasticity of crystal- and bubble-bearing rhyolite melts [PDF]
, 1994 The effect of non-deformable inclusions on the frequency-dependent rheology of a rhyolite melt plus crystals has been investigated using a sinusoidal torsion deformation device for measurements of shear viscosity and modulus in the frequency range of 5 ...
Angell +35 more
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Spartan Daily, May 9, 1939 [PDF]
, 1939 Volume 27, Issue 133https://scholarworks.sjsu.edu/spartandaily/2923/thumbnail ...
San Jose State University, School of Journalism and Mass Communications
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Applied Spectroscopy PracticaThis research on prehistoric obsidian artifacts from archaeological sites in Calabria (Italy) was done for the first time since Ammerman and colleagues’ work in Acconia on 52 artifacts more than three decades ago.
Robert H. Tykot, Andrea Vianello
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Archaeological Investigations at the Pine Snake Site, an Allen Phase Settlement on Flat Creek in Northwestern Cherokee County, Texas [PDF]
, 2013 The Pine Snake site is a recently discovered late 17th to early 18th century Caddo Indian archaeological site located on private land in the northwestern part of Cherokee County, Texas, in the valley of a westward flowing tributary to the Neches River ...
Feathers, James +3 more
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