Results 71 to 80 of about 3,365 (183)

Isotopic constraints on the genesis and evolution of basanitic lavas at Haleakala, Island of Maui, Hawaii [PDF]

open access: yes, 2016
© The Author(s), 2016. This is the author's version of the work and is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Geochimica et Cosmochimica Acta 195 (2016): 201-225, doi:10.1016/j.gca.
Blusztajn, Jerzy S.   +5 more
core   +1 more source

Geochemical and Isotopic Evolution of Loihi Volcano, Hawaii [PDF]

open access: yesJournal of Petrology, 1995
Abstract A 680m thick section from the deeply dissected east flank of Loihi Volcano was sampled using the Pisces V submersible to evaluate the volcano's geochemical evolution. Three types of lavas were recovered: tholeiitic, weakly alkalic and strongly alkalic. The ratio of alkalic to tholeiitic lavas varies systematically with depth,
M. O. Garcia   +3 more
openaire   +1 more source

Voluminous Inflated Lobate Flows on the Distal Rift Zones of Axial Seamount, Juan de Fuca Spreading Ridge

open access: yesGeochemistry, Geophysics, Geosystems, Volume 27, Issue 1, January 2026.
Abstract Three voluminous inflated lobate lava flow complexes on the distal rifts of Axial Seamount are much larger than other known flows in the global spreading system. Each complex is 65–100 km2, is up to 130 m thick, and is ∼3.0–4.6 km3, almost 100 times the volumes of historical Axial flows.
Jennifer B. Paduan   +5 more
wiley   +1 more source

Testing the Recycled Gabbro Hypothesis for the Origin of “Ghost Plagioclase” Melt Signatures Using 87Sr/86Sr of Individual Olivine‐Hosted Melt Inclusions From Hawai'i

open access: yesGeochemistry, Geophysics, Geosystems, 2021
Melt inclusions with large, positive Sr anomalies have been described in multiple tectonic settings, and the origins of this unusual geochemical feature are debated.
O. E. Anderson   +7 more
doaj   +1 more source

Four-Hundred-and-Ninety-Million-Year Record of Bacteriogenic Iron Oxide Precipitation at Sea-Floor Hydrothermal Vents [PDF]

open access: yes, 2004
Fe oxide deposits are commonly found at hydrothermal vent sites at mid-ocean ridge and back-arc sea floor spreading centers, seamounts associated with these spreading centers, and intra-plate seamounts, and can cover extensive areas of the seafloor ...
Alt JC   +15 more
core   +1 more source

Diversification and evolution of Hawaiian Megalagrion damselflies (Pinapinao, Odonata: Coenagrionidae) Ka Ho‘omāhuahua a me ke Kumu Ho‘omohala o nā Pinapinao Megalagrion o Hawai‘i (Odonata: Coenagrionidae)

open access: yesSystematic Entomology, Volume 51, Issue 1, January‐March 2026.
The ancestor of today's pinapinao, Hawaiian Megalagrion damselflies, diverged from Ischnurinae around 51 MA and likely evolved for over 20 MA before colonizing the Northwestern Hawaiian Islands. An ancestor of Megalagrion colonized the Northwestern Hawaiian Islands and diversified into ecological niches with four new breeding habitats and two new gill ...
Robert K. Hadfield   +10 more
wiley   +1 more source

Review and outlook on synaptic devices and chips for neuromorphic systems

open access: yesGongneng cailiao yu qijian xuebao
As the limitations of traditional von Neumann architecture in handling big data and artificial intelligence applications become increasingly apparent, new computing architectures such as Computing-In-Memory (CIM) and neuromorphic computing have gradually
Sai-ke ZHU, Yi ZHAO
doaj   +1 more source

Determining the Depths of Magma Chambers beneath Hawaiian Volcanoes using Petrological Methods [PDF]

open access: yes, 2014
Determination of the depths of magma chambers of Hawaiian volcanoes has been a major topic of interest for geologists and volcanologists in the past since the development of the plate tectonics theory in the 1950s.
Thompson, Andrew
core  

Event-based Vision: A Survey [PDF]

open access: yes, 2019
Event cameras are bio-inspired sensors that differ from conventional frame cameras: Instead of capturing images at a fixed rate, they asynchronously measure per-pixel brightness changes, and output a stream of events that encode the time, location and ...
Bartolozzi, Chiara   +10 more
core   +3 more sources

Self‐Spiking Linear Neuromorphic Soft Pressure Sensor for Underwater Sensing Applications

open access: yesAdvanced Materials, Volume 37, Issue 50, December 17, 2025.
This study presents a novel design of a neuromorphic pressure sensor that can generate self‐spiking symmetric signals with direct event‐based encoding through the integration of magnetic spheres and alternating coil circuits. The key advantages of this work include high linearity up to 200 kPa (R2 = 0.997), self‐spiking behavior for simplified signal ...
Jingyi Yang   +17 more
wiley   +1 more source

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