Results 171 to 180 of about 50,785 (248)
The continental margin of SE New Zealand is strongly influenced by the Southland Current and associated water masses. This new seismic stratigraphic study of the margin has revealed a range of depositional mounds and erosional channels that document the close interaction of turbidity and bottom currents in shaping the margin from the Mid‐Eocene onward.
Onyekachi N. Ibezim +3 more
wiley +1 more source
We compared temporal variability in dust and loess accretion in New Zealand's South Island with glacial activity in the central Southern Alps, considered the main mechanism of silt production, in (i) a proximal loess deposit at Barrhill, Rakaia River and (ii) a distal dust record from a peat mire in Central Otago.
Samuel K. Marx +2 more
wiley +1 more source
Spreading modes at slow-spreading ridges shifted by mantle heterogeneity of the asthenosphere. [PDF]
Zhang WQ +5 more
europepmc +1 more source
We provide petrographic and geochemical characterisation of mantle xenoliths from Koro Island, eastern Fiji. Several lherzolite xenoliths display spinel–pyroxene symplectite textures, including preserved former grain boundaries, consistent with garnet breakdown that we attribute to thinning of a preexisting garnet‐facies lithospheric mantle beneath ...
Natasha Barrett +4 more
wiley +1 more source
Abstract The Seychelles–Chagos Thermocline Ridge is an upwelling region in the western Indian Ocean, but its role in sinking particle flux remains unclear. We present sediment trap records (July 2022 to June 2024) at 1000 and 2500 m to reveal variations in particle flux and composition.
Junhyeong Seo +5 more
wiley +1 more source
Quantifying widespread hydrothermal chimneys on the East Pacific Rise flanks between 9°43' and 57'N. [PDF]
Wu JN +4 more
europepmc +1 more source
Development of a moored radium in situ sampler to measure annual time series
Abstract Radium is a useful tracer of sediment‐derived materials, improving our understanding of the geochemical cycling of elements at ocean boundaries. We have developed an autonomous in situ sampler to collect time series samples of radium isotopes on mooring deployments.
Lauren Kipp +5 more
wiley +1 more source
Linking electrical anomalies in the upper mantle to petrological and geochemical heterogeneities. [PDF]
Yang X, Xu YG, Xia QK.
europepmc +1 more source
Modeling soil moisture from rainfall: An evaluation of the diagnostic soil moisture equation
Abstract The diagnostic soil moisture equation (DSME), which estimates soil moisture from antecedent precipitation, can be used to gap‐fill and extend existing in situ records. We train and evaluate the DSME at 157 Soil Climate Analysis Network and 113 US Climate Reference Network (USCRN) stations across the contiguous United States.
Victoria A. Walker +4 more
wiley +1 more source

