Bandelier Tuff

Bandelier Tuff

Volcanoes and Their Products

Published in Dexter Perkins, Kevin R. Henke, Adam C. Simon, Lance D. Yarbrough, Earth Materials, 2019

Dexter Perkins, Kevin R. Henke, Adam C. Simon, Lance D. Yarbrough

The Bandelier Tuff, in Bandelier National Monument (Fig. 7.23), New Mexico, contains the remains of homes carved into the tuff by Ancestral Puebloans more than 11,000 years ago. The soft tuff, made from glassy volcanic ash, is perfect for carving homes. It was deposited as ashfalls during eruption of the Valles Caldera Volcano 1.14 million years ago. Tuffs like the Bandelier Tuff are the most common products of explosive eruptions.

Effect of water content on hydraulic properties of bentonite–geomaterials mixture

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Journal Information

Published in European Journal of Environmental and Civil Engineering, 2021

Abdellah Demdoum, Mohamed Kamel Gueddouda, Idriss Goual, Hanene Souli, Ruediger Anlauf, Moulay Smaine Ghembaza

Laghouat geological area, located in southern Algeria, is composed of a very thick of the marl- calcareous rock complex at the base and tuff calcareous crust grouping at the upper surface (from about 20 cm to about 2 m). Demdoum, Gueddouda, and Goual (2017) showed that the saturated hydraulic conductivity (ksat) of this tuff by the falling-head parameter is 3.04 × 10−8 m/s. This value is similar to one found by Abeele, Wheeler, and Burton (1981) for the tuff of Los Alamo's zone (New Mexico-États-Unis). The results of Abeele et al. (1981) indicated that the unsaturated hydraulic conductivity (kw) of crushed Bandelier tuff under matric potential of 195 kPa and a saturation degree of 22.3%, gives a hydraulic conductivity value of about 5.13 × 10−11 m/s. All these advantages make the local materials a good choice for use in soil liner engineering.

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Volcanoes and Their Products

Effect of water content on hydraulic properties of bentonite–geomaterials mixture