Showing papers in "Earth and Planetary Science Letters in 2015"

TL;DR: In this paper, the authors used a continental ice sheet model to show that mechanisms based on recent observations and analysis have the potential to resolve this model-data conflict, and incorporated these mechanisms in their ice-sheet model accelerates the expected collapse of the West Antarctic Ice Sheet to decadal time scales, and also causes retreat into major East Antarctic subglacial basins, producing ∼17 m global sea-level rise within a few thousand years.

TL;DR: In this paper, the authors investigated the causes and effects of landslide mobility and its impacts on a disastrous landslide that occurred on 22 March 2014 near Oso, Washington, USA, following a long period of abnormally wet weather.

TL;DR: In this paper, the authors examined a large-scale geochemical study of plutons in the Peninsular Ranges Batholith in southern California (USA) to better understand the petrogenetic relationships between HSGs and the batholith.

TL;DR: In this article, the authors explored the use of mercury as a possible direct link between the Karoo-Ferrar LIP and the coeval Toarcian OAE (T-OAE).

TL;DR: In this paper, the authors apply the single crystal, chemical abrasion U-Pb ID-TIMS method to zircon crystals isolated from twenty igneous province (LIP) sills and lavas, and the Dufek intrusion.

TL;DR: The Rustenburg Layered Suite (RLS) represents Earth's oldest large igneous province ( > 370 000 km 3 ), and contains the world's largest reserves of platinum-group elements, chromium and vanadium as discussed by the authors.

TL;DR: In this article, the authors compare the maximum pressure P-T conditions of exhumed subduction-related metamorphic rocks with those predicted by computational thermal models of subduction systems.

TL;DR: In this article, a high-resolution 3D image was obtained to reveal the distribution of low-velocity zones (LVZs) with unprecedented clarity, and the authors proposed that ductile flow within these channels, in addition to shear motion along strike-slip faults, played a significant role in accommodating intensive lithospheric deformation during the eastward expansion of Tibet in the Cenozoic.

TL;DR: In this article, geochemical data for H 2 O and other volatiles, as well as major and trace elements, are reported for 377 samples of lunar volcanic glass from three chemical groups (A15 green, A15 yellow, A17 orange 74 220).

TL;DR: In this paper, the authors assess the main mechanisms that could produce the mid-lithosphere discontinuity (MLD) and find that changes in mantle iron content (Mg#) and elastically-accommodated grain-boundary sliding are unlikely to result in sufficiently large velocity decreases to produce an observable SRF response.

TL;DR: In this paper, the authors presented a high-resolution shear-velocity model of the lithosphere (down to about 160 km) beneath China using Rayleigh-wave tomography.

TL;DR: In this paper, the authors show that these continental adakitic melts can be generated at depths less than 40 km, and their signature is most likely inherited from their source rocks.

TL;DR: In this article, a numerical model that couples the flow of ice and debris and includes important feedbacks between debris accumulation and glacier mass balance was developed to investigate the impact of debris transport on the response of a glacier to recent and future climate change, applied to a large debris-covered Himalayan glacier.

TL;DR: In this article, the major-element composition of the surface of Mercury was mapped from orbital MESSENGER X-Ray Spectrometer measurements, and the results revealed highly variable compositions (e.g., Mg/Si and Al/Si range over 0.1 − 0.8 and 0.4, respectively).

TL;DR: In this paper, the authors used smoothed particle hydrodynamics (SPH) for three different models: (a) standard, fast-spinning Earth, (b) small impactor hits a rapidly rotating proto-Earth, and (c) sub-Earths, two half Earth-sized planets collide.

TL;DR: JAT and ISW gratefully acknowledge financial support from the Australian Research Council (DP1096252) and Progetto d'Ateneo 2009 (CPDA090175/09) and 2012(CPDA 121100), and PRIN 2008 (2008BEF5Z7_005) as discussed by the authors.

TL;DR: The authors reconstructs the spatial distribution of oxygen isotopes in precipitation since the early Eocene, using a compilation of δ 18 O data from 2750 sedimentary carbonate samples.

TL;DR: In this article, an east-west trending seismic array consisting of 48 seismographs was operated in the central Lhasa block from September 2009 to November 2010, and the direction of fast wave polarization is about 60 ◦ in average with small fluctuations.

TL;DR: In this article, an accelerating process of ground deformation that began 10 years ago is currently affecting the Campi Flegrei caldera and is explained with the overlapping of two processes: short time pulses that are caused by injection of magmatic fluids into the hydrothermal system; and a long time process of heating of the rock.

TL;DR: In this article, the authors used secondary ion mass spectrometry (SIMS) to determine partitioning of C between upper mantle silicate minerals and basaltic melts, and executed 26 experiments between 0.8 and 3 GPa and 1250-1500 C.

TL;DR: In this article, the authors jointly analyzed broadband and strong motion waveforms, UAVSAR, leveling measurements and field observations to reveal the detailed seismic and aseismic faulting behaviors associated with the 2012 Brawley swarm.

TL;DR: In this paper, the authors characterize the sources, composition and age of suspended particulate organic carbon (POC) collected near the terminus of the Yellow River, focusing on the abundance and carbon isotopic composition (13C and 14C) of specific biomarkers.

TL;DR: In this article, the authors present a 3D description of the Southern California crust and upper mantle velocity structure based on tens of thousands of direct velocity (Vp, Vs) measurements and incorporate the locations and displacement of major fault zones.

TL;DR: In this paper, a new identification of magnetic anomalies located within the southern South Atlantic magnetic quiet zones that have arisen due to past variations in the strength of the dipolar geomagnetic field is presented.

TL;DR: In this article, the suitability of FCT apatite as a standard for AFT and AHe thermochronometry was evaluated using a series of sites throughout the vertical and lateral extent of the host ignimbrite sheet.

TL;DR: This article used a global compilation of 49 paired sea surface temperature-planktonic δ 18 O records to extract the mean of surface ocean seawater over the past 800 kyr, which they interpret to dominantly reflect global ice volume.

TL;DR: Turner and Langmuir as discussed by the authors used GEOROC data to explore global systematics of convergent margin volcanic compositions and found consistent results that persist across a wide range of Mg# [Mg# = Mg / (Mg + Fe ) ].

TL;DR: An initial (26Al/27Al)0 is calculated for the angrite parent body (APB) precursor material at the time of CAI formation, a value four times lower than the accepted canonical value of 5.25 × 10-5.

TL;DR: A detailed magnetostratigraphic study of the Huatugou section, northwestern Qaidam basin, reveals that this section spans the period from ∼30 to ∼11 Ma as mentioned in this paper.

TL;DR: In this article, an inversion of a simple probabilistic model of fluid-rock interaction was used to determine the apparent activation energy of seafloor basalt dissolution in low-temperature (tens of °C), off-axis, hydrothermal systems.