Results 21 to 30 of about 14,402 (198)

Volcanic aerosol records and tephrochronology of the Summit, Greenland, ice cores [PDF]

open access: yes, 1997
The recently collected Greenland Ice Sheet Project 2 (GISP2) and Greenland Ice Core Project ice cores from Summit, Greenland, provide lengthy and highly resolved records of the deposition of both the aerosol (H2SO4) and silicate (tephra) components of ...
Germani, Mark S.   +7 more
core   +3 more sources

Eco‐Friendly Bioplastic Film Produced With Green Plantain Starch (Musa paradisiaca L.): Effect of Activated Carbon Addition and Hydrothermal Modification

open access: yesPolymer Composites, EarlyView.
Activated Carbon as a Reinforcing Material for Starch Bioplastics. ABSTRACT Eco‐friendly starch‐based bioplastic films reinforced with activated carbon (AC) were produced using green plantain starch in its native and heat‐moisture treatment (HMT) forms to overcome typical limitations of starch materials, such as low mechanical strength and poor water ...
Eduardo Bruno Macêdo Viana   +8 more
wiley   +1 more source

Micro‐Texturized and Ultra‐Soft Dry Electrode for Motion‐Artifact Tolerant and Long‐Term Stable Wearable Electrophysiological Monitoring

open access: yesSmall, EarlyView.
A highly conformal and adhesive dry electrode is developed using a micro‐textured carbon black/PDMS composite. By leveraging spontaneous surface roughness for enhanced mechanical interlocking and integrating a stretchable serpentine interconnector, the device achieves robust skin contact and low impedance.
Sang‐Min Kim   +10 more
wiley   +1 more source

A model for large-scale volcanic plumes on Io: Implications for eruption rates and interactions between magmas and near-surface volatiles. [PDF]

open access: yes, 2002
Volcanic plumes deposit magmatic pyroclasts and SO2 frost on the surface of Io. We model the plume activity detected by Galileo at the Pillan and Pele sites from 1996 to 1997 assuming that magmatic eruptions incorporate liquid SO2 from near-surface ...
Cataldo, Enzo   +3 more
core   +1 more source

Response of Remote Tropical West Pacific Islands to Climate Variability: A Multiproxy Record From T‐Lake, Palau, Spanning the Early Holocene to Present

open access: yesArchaeometry, EarlyView.
ABSTRACT Lake sediments are natural archives of past environmental dynamics and how these systems have responded to past climate variability. Sediment geochemistry, governed by local geology and climate processes, is unique to each lake‐catchment and geochemical proxies must be validated for each study site.
Jalene Nalbant   +6 more
wiley   +1 more source

Microspherules Formed by Lightning Strikes

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract Natural microspherules are formed by high‐temperature processes and are present throughout the geologic record to the present day. We report the discovery of large numbers of microspherules recovered from a rock pavement in the Pilbara region, Western Australia.
M. R. Boyd, M. J. Genge, A. G. Tomkins
wiley   +1 more source

MAAR conference in Hungary [PDF]

open access: yes, 2005
No abstract ...
Martin, Ulrike, Nemeth, Karoly
core   +1 more source

100- kyr cyclicity in volcanic ash emplacement: evidence from a 1.1 Myr tephra record from the NW Pacific [PDF]

open access: yes, 2018
It is a longstanding observation that the frequency of volcanism periodically changes at times of global climate change. The existence of causal links between volcanism and Earth's climate remains highly controversial, partly because most related studies
Freundt, Armin   +6 more
core   +2 more sources

A review of the supercritical state of eruption‐fed volcanic density currents in subaerial and subaqueous settings

open access: yesSedimentology, EarlyView.
ABSTRACT Subaerial Pyroclastic Density Currents (PDCs) and Subaqueous Eruption‐Fed Density Currents (SEFDCs) produced during volcanic eruptions can present major hazards to surrounding communities and ecosystems. The bedforms deposited by these volcanic density currents can provide insights into the nature of transport and depositional processes, which
Shannon E. Frey   +2 more
wiley   +1 more source

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