Nanocarbons, especially carbon nanotubes and nanofibers CNTs/CNFs), are key materials in nanoscience and nanotechnology, but their application on a large scale (for instance in catalysis) is limited by their difficult production. Current processes including preparation of the support, normally silica or alumina, and impregnation with catalytically active metal for hydrocarbon decomposition, are...

Approximately 50,000 ha of native wet Metrosideros forest on the island of Hawai'i experienced a drastic reduction (dieback) of the tree canopy between 1954 and 1977. Two general hypotheses have previously been suggested to explain this phenomenon: 1) Metrosideros dieback has resulted from recently introduced pathogens, and 2) the dieback has naturally occurred previously in Hawai'i, and is rel...

[1] We present three‐dimensional laboratory modeling of the evolution of finite strain and compare these to shear wave splitting observations in the Northwest U.S. under the High Lava Plains (HLP). We show that relationships between mantle flow and anisotropy are complicated in subduction zones and factors such as initial orientation of the olivine fast‐axis, style of subduction, and time evolv...

[1] The floor of Isidis Basin is covered by materials of the Vastitas Borealis Formation (VBF) that appear to be emplaced essentially as a single unit. Along its western boundary, Isidis Basin is in contact with volcanic flows from Syrtis Major Planum. The contact between the Isidis unit and volcanic flows from Syrtis Major is sharp to gradational and in places is characterized by a high ( 500 ...

We applied fertilizers in a 23 complete factorial design to determine the effects of nutrient amendments on plant growth in Hawaiian montane forests growing on two different volcanic substrates: 'a'a and pahoehoe lava. Both sites were about 140 years old and their overstories were nearly monospecific stands of Metrosiderospolymorpha. Fertilizer applications included N, P, a mixture of essential...

The Figuera Lava, the oldest stratigraphic unit now recognized in northeastern Puerto Rico, and the overlying Fajardo Formation are redescribed and the name Figuera redefined and reinstated for formal use. Previously, lower Tertiary strata some distance from the type areas of the Figuera and Fajardo were correlated with the units by reconnaissance. Recent detailed mapping and paleontology now p...

Abstract Determining the parameters that control fissure-fed lava morphologies is critical for reconstructing complex emplacement histories of eruptions on Earth and other planetary bodies. We used a geomorphological map 2014–2015 Holuhraun flow field, in combination with new constraints chronology two independently derived time-averaged discharge rate (TADR) data sets, to analyze correlations ...