Results 31 to 40 of about 27,879 (190)
Dispersal, source and glass chemistry of a third tephra unit within Iceland's Settlement Layer
Tephra layers may be studied to understand the dynamics and sequence of past explosive volcanism. In Iceland, the distinctive Settlement Layer (AD ~877) underlies almost all archaeological evidence for the Norse Settlement and is preserved in soils across Iceland and as cryptotephra overseas.
Conner A. G. Morison +3 more
wiley +1 more source
ABSTRACT While researchers continue to make significant scholarly inroads toward the acknowledgment of Black children's agency and competencies, including their recognition of and resistance to systemic racism, practical guides to anti‐racist qualitative research with young Black children factor conspicuously less often into the contextual balance of ...
Kerry‐Ann Escayg +2 more
wiley +1 more source
A Consensus‐Based Glossary for Controversial Terminology in Root and Canal Anatomy
ABSTRACT Aim To produce a glossary of controversial terminology relating to a variety of anatomical features of root canals. Materials and Methods A multi‐stage consensus process was designed and applied to generate definitions for controversial terms describing root and canal anatomy.
Hany Mohamed Aly Ahmed +39 more
wiley +1 more source
Building a Continental‐Scale Geodetic Network: The Plate Boundary Observatory (PBO)
Abstract The Plate Boundary Observatory (PBO) transformed the use of geodesy in North America to study crustal deformation and plate boundary processes by establishing a continental‐scale, standardized, open‐access geodetic network. Built and operated by UNAVCO between 2003 and 2018 as part of the National Science Foundation (NSF)‐funded EarthScope ...
Emily E. Zawacki +5 more
wiley +1 more source
De pulvere febrifugo occidentalis indiae (1663) de Gaspar Caldera de Heredia y la introducción de la quina en Europa [PDF]
Gaspar Caldera de Heredia y su “De Pulvere Febrifugo Occidentalis Indiae”. Girolamo Bardi y los cardenales Brancaccio y de Lugo. Juan de Vega, introductor de la quina en Europa, según Gaspar Caldera de Heredia. Los testimonios complementarios de Bravo de
Caldera de Heredia, Gaspar +2 more
core
Seismic and Gravity Structure of the Campi Flegrei Caldera, Italy
We present a comprehensive review of seismic and gravity observations and tomographic models produced over the past four decades in order to understand the structure of the crust beneath the Campi Flegrei caldera.
Vassallo M. +8 more
core +1 more source
ABSTRACT Previous studies have documented genetic divergence within the last few million years between northern and southern populations of terrestrial plants and animals along the Baja California peninsula, with many studies hypothesising that the divergence is due to an ancient seaway that crossed the central peninsula and created a physical barrier ...
Kevin K. Gardner +8 more
wiley +1 more source
Hydrothermal fluid circulation and its effect on caldera unrest
This paper focuses on the role that hydrothermal systems may play in caldera unrest. Changes in the fluid chemistry, temperature, and discharge rate of hydrothermal systems are commonly detected at the surface during volcanic unrest, as hydrothermal ...
Todesco, M.
core
On the monitoring of surface displacement in connection with volcano reactivation in Tenerife, Canary Islands, using space techniques [PDF]
Geodetic volcano monitoring in Tenerife has mainly focused on the Las Cañadas Caldera, where a geodetic micronetwork and a levelling profile are located.
González-Matesanz, FJ. +18 more
core
Abstract Fault‐slip reversals indicate transient stress changes and may illuminate earthquake preparation processes. Here we present high‐resolution observations of sub‐millimetric creep and slip reversals on the Altaquelle Fault, a Quaternary normal fault in the southern Vienna Basin, preceding a regionally significant intraplate earthquake sequence ...
I. Baroň +13 more
wiley +1 more source

