Showing papers in "Earth and Planetary Science Letters in 2018"

TL;DR: In this article, the authors describe the behavior of slow slip over a vast range of spatial and temporal scales, and show that changes in fluid pressure or slip rate can cause a fault to transition between stable and unstable fault slip behavior.

TL;DR: Kimberlite magmatism has occurred in cratonic regions on every continent as mentioned in this paper and the global age distribution suggests that this form of mantle melting has been more prominent after 1.2 Ga, and notably between 250-50 Ma, than during early Earth history before 2 Ga.

TL;DR: In this article, the authors use a series of landscape evolution simulations in which they induce divide mobility under different conditions to test the utility of a suite of topographic metrics of divide mobility and for comparison with natural examples in the eastern Greater Caucasus Mountains, the Kars Volcanic Plateau and the western San Bernadino Mountains.

TL;DR: The eCOCO (evolutionary correlation coefficient) analysis as mentioned in this paper was proposed to estimate the product-moment correlation coefficient between the power spectra of astronomical solutions and the paleoclimate proxy series across a range of test sedimentation rates.

TL;DR: In this article, the authors reconstruct continuous surface ocean pH, CO2, and surface ocean aragonite saturation state using boron isotopes from the planktonic foraminifer Trilobatus trilobus and perform a sensitivity analysis of the key variables in their calculations.

TL;DR: In this paper, the authors present integrated geochemical and physical proxy data (high-resolution carbon-isotope data (δ13C), bulk and molecular organic geochemistry, inorganic petrology, mineral characterisation, and major and trace-element concentrations) from the biostratigraphically complete and expanded entire Toarcian succession in the Llanbedr (Mochras Farm) Borehole, Cardigan Bay Basin, Wales, UK.

TL;DR: In this paper, the authors present new δ^(34)S measurements on sulfate from more than 160 river samples from different geographical and climatic regions, and estimate that 46% of the world's freshwater flux to the ocean is accounted for in this estimate of the global riverine sulfur isotope budget.

TL;DR: In this paper, the authors apply the Th/Yb-Nb-Yb plot of Pearce (2008) to the well-studied Archean greenstone sequences of Western Australia and show that individual volcanic sequences evolved through one of two distinct processes reflecting different modes of crust-mantle interaction.

TL;DR: In this article, the authors studied the early tectonic and magmatic evolution of the Izu-Bonin-Mariana (IBM) arc system in the Western Pacific and provided evidence for seafloor spreading at the time of subduction initiation.

TL;DR: In this paper, the authors derived the slip distribution and rupture evolution during the 2016 Mw 7.9 Kaikōura (New Zealand) earthquake that reconcile the surface rupture, space geodetic measurements, seismological and tsunami waveform records.

TL;DR: In this article, the authors exploit a wealth of geodetic, seismological and field data to understand the spatio-temporal evolution of the sequence and suggest that intersections between major and subsidiary faults controlled the extent and termination of rupture in each event in the sequence, and fluid diffusion, channelled along these same fault intersections, may also determined the timing of rupture reinitiation.

TL;DR: In this article, the authors evaluate and reject the hypothesis that solid-state reordering of 13C-18O bonds has destroyed the primary clumped isotope temperature signal of most fossils during sedimentary burial at elevated temperatures.

TL;DR: In this article, a calibration error was attributed to the interpretation of Mossbauer spectra and the resulting Fe / 3 + Σ Fe values of the standards, leading to an anomalously high XANES value of 0.16.

TL;DR: In this paper, the relative mantle/exosphere fractionations of the major (H2O, C, and N) volatiles are derived from oceanic basalts combined with convecting mantle Ce and Ba concentrations, and Monte Carlo simulations of C and Ba exchange between the interior and exterior reservoirs, taking into account uncertainties in total C, Ba and Ce in the BSE and in the exosphere, suggest that for 0-40% Ba recycling to the mantle, 35-80% of the C that has outgassed to the surface through time has been

TL;DR: In this paper, two types of garnet-quartz-phengite veins can be distinguished in an eclogite-facies melange block from the Pouebo Eclogitic Melange, New Caledonia.

TL;DR: In this paper, the authors use weighted bootstrap resampling to minimize sampling bias over the heterogeneous rock record and obtain maximally representative average basaltic compositions through time.

TL;DR: In this paper, apatite and zircon (U-Th)/He and apatinite fission track thermochronometries are employed to map the spatial and temporal pattern of exhumation in the region.

TL;DR: In this article, the authors investigate the interactions between deformation, sedimentation, and magmatism in a retroarc environment, and suggest that tectonic processes across the arc and retro-arc systems are interrelated and governed mass transfer.

TL;DR: In this paper, the authors show that the exhumation of rocks of variable erosional resistance exerts a fundamental, autogenic control on the evolution of post-orogenic landscapes that continually reshapes river networks.

TL;DR: In this paper, a laser ablation split stream (LASS) analysis of the U-Pb and Hf isotope compositions of zircon from eleven samples of the least-altered meta-igneous rocks from the Itsaq (Amitsoq) Gneisses of the Isukasia and Nuuk regions of southern West Greenland is presented.

TL;DR: In this paper, a stable isotope analysis of mercury provides a way to test these links as its concentration is thought to be tied to igneous activity, but the exact causal connection between eruptions and extinction processes in South China is uncertain due to their wide spatial separation and the absence of direct geochemical evidence linking the two.

TL;DR: In this article, the authors proposed that the influence of Hainan plume can explain the elevated 206Pb/204Pb of the East sub-basin basalts of the South China Sea, and the recycling of lower continental crust to the convective mantle.

TL;DR: In this article, the authors present two multi-channel seismic transects across the northern flank of the South China Sea basin to reveal the internal structures related to Cenozoic tectono-magmatic processes during seafloor spreading.

TL;DR: In this article, the authors conducted a cyclostratigraphic study on the Cryogenian non-glacial Datangpo Formation that conformably overlies and underlies Sturtian and Marinoan glacial diamictites in a deep-water basin section in South China.

TL;DR: In this paper, the authors used XANES spectroscopy of a globally representative sample of these MORB glasses to determine the average valence state of Fe in its quenched glass.

TL;DR: In this article, high-resolution monsoon precipitation variations were reconstructed in the upper Hanjiang River region over the past 6650 years from δ 18 O and δ 13 C records of four stalagmites in Xianglong cave.

TL;DR: In this article, the authors investigated the evolution of the frequency-magnitude b-value during stable and unstable frictional sliding experiments using a biaxial shear configuration.

TL;DR: In this paper, the authors investigated the effect of gas injection on the stability and chemical evolution of subvolcanic systems and found that CO2 flushing is a widespread process in both felsic and mafic systems.

TL;DR: In this paper, the authors used precise dating together with precise field measurements of offsets to re-estimate the slip rate of the Xianshuihe fault that was suggested without precise age constraints.

TL;DR: In this paper, the authors investigated the control on the Ba isotope compositions of marine sediments and their potential for paleo-oceanographic applications, and presented the first Ba-IoE compositions results for sediments, as well as overlying seawater depth profiles collected in the South Atlantic.