Results 31 to 40 of about 308,210 (306)

Shoshonites in southern Tibet record Late Jurassic rifting of a Tethyan intraoceanic island arc [PDF]

open access: yes, 2007
Detailed field mapping combined with a petrologic and geochemical investigation of the Zedong terrane within the Yarlung Tsangpo suture zone provides insights to the evolution of now mostly subducted portions of Tethys during the Late Jurassic.
Aitchison, J.C.   +4 more
core   +1 more source

Magmatic Evolution of the Fossil Melanesian Island Arc: Evidence From Lower Miocene Lavas of Malekula Island (Vanuatu)

open access: yesGeochemistry, Geophysics, Geosystems
The subduction zones in the SW Pacific Ocean are some of the most dynamic plate boundaries on Earth with changes in subduction polarity and subduction initiation processes. The New Hebrides island arc formed some 10 million years ago after the Melanesian
K. M. Haase   +3 more
doaj   +1 more source

Contrasting Volcanic Deformation in Arc and Ocean Island Settings Due To Exsolution of Magmatic Water

open access: yesGeochemistry, Geophysics, Geosystems, 2022
Two of the most widely observed co‐eruptive volcanic phenomena—Ground deformation and volcanic outgassing—Are fundamentally linked via the mechanism of magma degassing and the development of compressibility, which controls how the volume of magma changes
Stanley Tze Hou Yip   +4 more
doaj   +1 more source

Expeditionary research on the Kronotsky Peninsula

open access: yesВестник Камчатской региональной ассоциации "Учебно-научный центр". Серия: Науки о Земле, 2023
The sublatitudinal active fault on the Kronotsky Peninsula (Kamchatka) has been studied. The deformations of the Holocene soil-pyroclastic cover opened by the trench indicate reverse vertical movements along the fault plane.
A.I. Kozhurin   +3 more
doaj   +1 more source

Accreted oceanic terranes in Ecuador: Southern edge of the Caribbean plate ? [PDF]

open access: yes, 2009
in pressThe western part of Ecuador is made of several oceanic terranes, which comprise two oceanic plateaus, of Early (≈ 120 Ma), and Late Cretaceous age (≈ 90 Ma), respectively.
Amortegui, Andrea   +5 more
core   +2 more sources

NanoMOF‐Based Multilevel Anti‐Counterfeiting by a Combination of Visible and Invisible Photoluminescence and Conductivity

open access: yesAdvanced Functional Materials, EarlyView.
This study presents novel anti‐counterfeiting tags with multilevel security features that utilize additional disguise features. They combine luminescent nanosized Ln‐MOFs with conductive polymers to multifunctional mixed‐matrix membranes and powder composites. The materials exhibit visible/NIR emission and matrix‐based conductivity even as black bodies.
Moritz Maxeiner   +9 more
wiley   +1 more source

Paleogeotectonic position of the Kyzyk Chadr copper-porphyry ore field (Republic of Tyva)

open access: yesРуды и металлы, 2023
Regional-scale localization conditions of the Kyzyk-Chadr molybdenum-copper porphyry ore field in the southern folded frame of the Siberian Platform are considered.
Starostin I. A.   +2 more
doaj   +1 more source

The arc arises: The links between volcanic output, arc evolution and melt composition [PDF]

open access: yes, 2017
Subduction initiation is a key process for global plate tectonics. Individual lithologies developed during subduction initiation and arc inception have been identified in the trench wall of the Izu–Bonin–Mariana (IBM) island arc but a continuous record ...
Arculus, RJ   +7 more
core   +1 more source

Artifact‐Minimizing Ultrathin Transparent Electrodes Fabricated via iCVD for In Vivo Optogenetic Stimulation and Neural Signal Monitoring of Primary Visual Cortex

open access: yesAdvanced Functional Materials, EarlyView.
We present ultrathin flexible transparent electrodes through iCVD‐enabled molecular control of 10 nm gold films on poly(dimethylaminomethylstyrene). In vivo validation demonstrated photoelectric artifact reduction vs. opaque electrodes and preservation of natural neural dynamics.
Tae Jin Mun   +11 more
wiley   +1 more source

NEW DATA ON THE AGE AND COMPOSITION OF OPHIOLITES FROM THE KABAK-TAIGA MASSIF (GORNY ALTAI)

open access: yesГеодинамика и тектонофизика
The combination of newly obtained geological, petrological and geochronological data on the rocks from the Kabak-Taiga ophiolite massif of the Gorny Altai and already published materials on similar characteristics of the ophiolites from Tuva allows us to
V. D. Zindobryi   +2 more
doaj   +1 more source

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