Results 101 to 110 of about 1,244,965 (221)

Widespread On‐Fault Geologic Evidence for Variable Mode Coseismic Slip to the Trench in Cascadia

open access: yesAGU Advances, Volume 7, Issue 8, November 2026.
Abstract Investigating the geologic record of near‐trench coseismic strain release is critical for estimating the slip distribution and tsunamigenic potential of future large subduction zone earthquakes. However, the style and extent of upper plate coseismic deformation offshore in subduction zones is poorly constrained.
J. T. Watt   +11 more
wiley   +1 more source

A novel approach for endmember bundle extraction using spectral space splitting [PDF]

open access: yes, 2015
The traditional endmember extraction methods search for a fixed set of endmembers, each one assigned to a single material. However, in many real applications, the materials of interest may present spectral variability which is related to subtle ...
Müller, Rupert   +7 more
core   +1 more source

Endmember Estimation with Maximum Distance Analysis

open access: yes, 2021
Endmember estimation plays a key role in hyperspectral image unmixing, often requiring an estimation of the number of endmembers and extracting endmembers.
Xuanwen Tao   +5 more
core   +1 more source

Geochemical Characteristics of Metasediment—Rich Lower Continental Crust: Insights From the Ivrea‐Verbano Zone (DIVE Drilling Project, ICDP Expedition 5071, Val d’Ossola, Italy)

open access: yesGeochemistry, Geophysics, Geosystems, Volume 27, Issue 11, November 2026.
Abstract Whole‐rock geochemical data from two drill cores obtained through the ICDP (International Continental Scientific Drilling Program) funded Drilling the Ivrea‐Verbano Zone (IVZ) (DIVE) project: 5071_1_B (Ornavasso) and 5071_1_A (Megolo), provide new insights into the composition of the lower continental crust (LCC) in the IVZ. Borehole 5071_1_B (
Alexia Secrétan   +9 more
wiley   +1 more source

Seismogenic Consequences of COH‐Fluid Rock Interactions in Ultramafic Fault Zones Insights From Carbonation‐Decarbonation Friction Experiments

open access: yesJournal of Geophysical Research: Solid Earth, Volume 131, Issue 11, November 2026.
Abstract Fluid‐rock interactions have major implications on the frictional behavior of fault rocks. Infiltration of CO2‐bearing fluids in ultramafic fault zones causes the progressive formation of serpentinite, talc‐magnesite (soapstone) and quartz‐magnesite (listvenite) assemblages.
L. Eberhard   +3 more
wiley   +1 more source

A new approach for endmember extraction and clustering addressing inter- and intra-class variability via multi-scaled-band partitioning

open access: yes, 2016
In this paper a new method is introduced for detecting and clustering spectrally similar but physically distinct materials. The method exploits the spectral information by dividing the spectral domain into band subsets whose width vary from broad to ...
Müller, Rupert   +2 more
core   +1 more source

Sources and Alterations to Trace Metal Distributions Through the Eastern Canadian Arctic Archipelago and Baffin Bay

open access: yesJournal of Geophysical Research: Oceans, Volume 131, Issue 11, November 2026.
Abstract On its way south to the North Atlantic Ocean, Arctic water of both Atlantic and Pacific origin is modified by sea ice and glacial melt, meteoric water (MW), and continental shelves. In the eastern Canadian Arctic, this modification occurs during transit through Nares Strait, Jones Sound, Barrow Strait, Lancaster Sound, and southward through ...
Tia K. Anderlini   +2 more
wiley   +1 more source

Optimal endmember-based super-resolution land cover mapping [PDF]

open access: yes, 2019
Super-resolution mapping (SRM) aims to determine the spatial distribution of the land cover classes contained in the area represented by mixed pixels to obtain a more appropriate and accurate map at a finer spatial resolution than the input remotely ...
Du, Yun   +6 more
core   +1 more source

Updated Estimates of Radiocarbon‐Based Deep Ocean Circulation Age

open access: yesJournal of Geophysical Research: Oceans, Volume 131, Issue 11, November 2026.
Abstract The deep ocean circulation age based on radiocarbon was last determined almost 20 years ago, when digital archiving was not standard practice. This work updates the circulation age while making two improvements by using new nutrient data and modifying the calculation. The newly calculated circulation age is spatially more coherent and older in
Katsumi Matsumoto
wiley   +1 more source

Sulfidation Reaction Mechanisms of Olivine and Diopside at Mercury's Reducing Conditions

open access: yesJournal of Geophysical Research: Planets, Volume 131, Issue 11, November 2026.
Abstract The surface of Mercury contains elevated amounts of sulfur of up to 4 wt.%. Volcanic degassing of S from the interior of the planet could have initiated sulfidation reactions between the degassed S and surface materials in the planet's past, leading to the observed surface S enrichment.
Rody C. Erftemeijer   +2 more
wiley   +1 more source

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