Results 71 to 80 of about 301,733 (364)
We compared population trends for rock ptarmigan Lagopus muta densities (2003‒2019) derived from walked transects and driven road transects in Mosfellsheiði and Slétta in southwest and northeast Iceland, respectively. The walked transects were laid out according to a random rule.
Matteo Ferrarini, Ólafur K. Nielsen
wiley +1 more source
Impact vesiculation – a new trigger for volcanic bubble growth and degassing [PDF]
We highlight a potentially important trigger for bubble growth and degassing in volcanic bombs. We have successfully triggered bubble growth in previously unvesiculated samples of silicate melt during experiments to simulate volcanic bomb impact, by ...
Dingwell, D. B. +3 more
core +1 more source
Handheld photogrammetry advances capabilities to systematically characterize broken‐rock habitat
We developed a novel workflow using handheld photogrammetry to map and quantify fine‐scale habitat characteristics in broken‐rock patches, enabling detailed assessment of structurally complex habitats. Using structure‐from‐motion and image segmentation techniques, we generated high‐resolution digital elevation models and orthomosaics to classify cover ...
Ana T. Ferreira +4 more
wiley +1 more source
The origin of tubular lava stalactites and other related forms [PDF]
Tubular lava stalactites are often found in lava tubes. Field observations, sample analysis, and comparative studies indicate that these are segregations extruded during cooling from partially crystallized lava al about 1,070 - 1,000 °C.
Kevin Allred, Carlene Allred
doaj
Analisis sebaran lava bantal Watuadeg di Kecamatan Berbah DI Yogyakarta yang didukung data Vertical Electrical Sounding (VES )telah dilakukan.Keterdapatan lava bantal yang tersingkap di permukaan merupakan penanda bahwa dahulu daerah tersebut merupakan ...
Nurul Dzakiya +3 more
doaj +1 more source
The Syntactic Status of Subject Clitics: A Problem from Venetan SE‐Constructions
Abstract This article reopens the discussion on the syntax of subject clitics (SCLs) in Venetan dialects by providing a problematic piece of data and outlining its theoretical consequences. New evidence from se‐constructions in Alto Polesine Venetan (APV) shows that SCLs resist a unitary categorisation even within the same dialect group: in varieties ...
Marco Fioratti, Leonardo Russo Cardona
wiley +1 more source
Emplacement of the Rocche Rosse rhyolite lava flow (Lipari, Aeolian Islands) [PDF]
The authors acknowledge Airbus Defence and Space for providing satellite imagery, financial support from Keele University and fieldwork grants from the Mineralogical Society of Great Britain and Ireland and the Volcanic and Magmatic Studies Group.
Bullock, Liam A +2 more
core +2 more sources
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 +23 more
wiley +1 more source
Nishinoshima volcano suddenly resumed eruptive activity in April 2017 after about 1.5 years of dormancy since its previous activity in 2013–2015. Nishinoshima is an uninhabited isolated island.
Takayuki Kaneko +4 more
doaj +1 more source
Northwest Africa 5790. Top Sequence of the Nakhlite Pile [PDF]
NWA 5790 is a recently discovered nakhlite. Its mineralogy, petrology and geochemistry suggest that it is the topmost sequence of the nakhlite lava ...
Badia, D. +7 more
core

