Results 61 to 70 of about 9,726 (207)

Investigating Technology and Raw Materials Source of the Archaic and Classical Architectural Terracottas From the Athenaion in Castro (Apulia, Italy)

Archaeometry, EarlyView.
ABSTRACT Since 2000, archaeological excavations have brought to light the sanctuary of Athena in Castro (Apulia, Italy), including terracotta roofs dated between the 6th and 4th centuries bce. Based on their morphological and stylistic features, it is suggested that the terracotta items were manufactured in the Greek colony of Taras (modern Taranto ...
M. M. N. Franceschini, T. Ismaelli, S. Vettori, L. Chelazzi, S. Ciattini, F. Di Benedetto, C. Grifa, E. Cantisani   +7 more
wiley   +1 more source

Origin and significance of ice‐rafted detritus in the Atlantic sector of the Southern Ocean

Geochemistry, Geophysics, Geosystems, 2007
Piston core TN057‐14 from the eastern Atlantic sector of the Southern Ocean contains several layers rich in volcanic tephra that were deposited during the last glacial period.
Simon H. H. Nielsen, D. A. Hodell, G. Kamenov, T. Guilderson, M. R. Perfit   +4 more
doaj   +1 more source

Assessing Impact to Infrastructures Due to Tephra Fallout From Öræfajökull Volcano (Iceland) by Using a Scenario-Based Approach and a Numerical Model

Frontiers in Earth Science, 2018
Mt. Öræfajökull is one of the most dangerous volcanoes in Iceland with potential for a VEI6 eruption and the generation of many severe associated hazards. It is not a frequently erupting volcano with two eruptions in the last 1100 years, in 1362 and 1727–
Sara Barsotti, Dario Ingi Di Rienzo, Dario Ingi Di Rienzo, Thorvaldur Thordarson, Bogi Brynjar Björnsson, Sigrún Karlsdóttir   +5 more
doaj   +1 more source

A 100-year record of North Pacific volcanism in an ice core from Eclipse icefield, Yukon Territory, Canada [PDF]

, 2003
A record of regionally significant volcanic eruptions in the North Pacific over the last century has been developed using a glaciochemical record from Eclipse Icefield, Yukon Territory, Canada.
Germani, Mark S, Wake, Cameron P, Yalcin, Kaplan   +2 more
core   +3 more sources

Determining tephra fall deposit thickness in sedimentary record from magnetic susceptibility curve: Example of four Ethiopian tephras

Geochemistry, Geophysics, Geosystems, 2004
The ejecta volume associated to a volcanic eruption is commonly estimated by extrapolating the exponential thinning relations beyond the tephra fall deposit thickness preserved in the sedimentary record. The thickness of a tephra is usually determined visually, eventually including the counting of the volcanic grains to take into account the vertical ...
Y. Touchard, P. Rochette
openaire   +1 more source

Early Holocene jökulhlaup chronology and deglaciation dynamics in central Iceland

Boreas, EarlyView.
Glacial lake outburst floods (jökulhlaups) have occurred throughout the Quaternary in glaciated regions worldwide. Reconstructing flood chronology yields insight into deglaciation processes, environmental change and the role of extreme events in landscape evolution.
Greta H. Wells, Þorsteinn Sæmundsson, Edwin R. C. Baynes, Timothy Beach, Sheryl Luzzadder‐Beach   +4 more
wiley   +1 more source

Late‐Holocene evolution of a small Sub‐Arctic glacier, Gljúfurárjökull (Tröllaskagi, northern Iceland)

Boreas, EarlyView.
Gljúfurárjökull, located on the Tröllaskagi Peninsula in northern Iceland, is a small glacier approximately 3.8 km in length. This study analyses the glacier's evolution through a combination of methods including: (i) geomorphological mapping, (ii) Cosmic‐Ray Exposure (CRE) dating, (iii) lichenometry and (iv) palaeoglacier reconstruction (volume ...
Nuria Andrés, José M. Fernández‐Fernández, David Palacios, Irene Schimmelpfennig, Leopoldo G. Sancho, Skafti Brynjólfsson, Þorsteinn Sæmundsson, Wesley R. Farnsworth, Luis M. Tanarro, Mariano Brito, Javier Santos‐González, Rosa B. González‐Gutiérrez, ASTER Team, Georges Aumaître, Karim Keddadouche   +14 more
wiley   +1 more source

Out in the cold? A review of Early Middle Palaeolithic settlements in northern Central Europe, age data and geological preconditions for site formation and preservation

Boreas, EarlyView.
The characteristics of settlement of Neanderthals in northern Central Europe during the earlier phases of the Middle Palaeolithic (Marine Isotope Stage 8–6) have been a matter of debate for decades, specifically regarding the population dynamics at such latitudes during the coldest phases. In this paper, we review the known archaeological record of the
Gianpiero Di Maida, Jutta Winsemann, Malte Hoffmann, Tobias Lauer, Utz Böhner, Thomas Terberger   +5 more
wiley   +1 more source

A step-by-step evaluation of empirical methods to quantify eruption source parameters from tephra-fall deposits

Journal of Applied Volcanology, 2019
This paper describes the step-by-step process of characterizing tephra-fall deposits based on isopach, isomass and isopleth maps as well as thickness transects at different distances from their source. It covers the most frequently used empirical methods
Sébastien Biass, Costanza Bonadonna, Bruce F. Houghton   +2 more
doaj   +1 more source

Evaluating relative tephra fall hazard and risk in the Asia-Pacific region [PDF]

Geosphere, 2018
With increasing population densities and expanding urban boundaries, the potential for explosive volcanic eruptions to have adverse impacts upon urban areas is on the rise. This is particularly true for volcanoes along subduction zones, because they are almost exclusively explosive and often coincident with large populations. Explosive eruption hazards
Jenkins, Susanna F., Magill, Christina R., Blong, Russell J.   +2 more
openaire   +2 more sources