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Showing papers in "Earth and Planetary Science Letters in 2014"


Journal ArticleDOI
TL;DR: In this paper, a new scaling model based on analytical approximations to modeled fluxes of the main atmospheric cosmic-ray particles responsible for in situ cosmogenic nuclide production is proposed.

541 citations


Journal ArticleDOI
TL;DR: In this paper, a suite of trace elements in sedimentary pyrite from marine black shales were quantified to track the primary elemental abundances in coeval seawater.

377 citations


Journal ArticleDOI
Lin Ding1, Qiang Xu1, Yahui Yue1, Houqi Wang1, Fulong Cai1, Shun Li1 
TL;DR: In this article, the authors presented new oxygen and carbon isotopic compositions from well dated Tertiary paleosols, lacustrine calcareous carbonates, and marls from the Nianbo and upper Pana Formations of the Linzizong Group in the Linzhou (Penbo) Basin.

325 citations


Journal ArticleDOI
TL;DR: In this article, the authors explore the possibility of using Zr and P systematics to evaluate the importance of some of these processes, such as direct melting of the mantle at water-saturated conditions, partial remelting of altered basaltic crust, crystal fractionation of arc basalts in crustal magma chambers, and mixing of mafic magmas with high Si crust or magmas, e.g., dacite-rhyolite.

305 citations


Journal ArticleDOI
TL;DR: In this paper, a geomagnetic field model for the Holocene period based on archaeomagnetic and lava flow data, avoiding the use of lake sediment data, has been proposed.

285 citations


Journal ArticleDOI
TL;DR: In this article, the authors quantify past shifts in zonally averaged ITCZ position and find that the largest shifts are likely less than 1˚ latitude during the Last Glacial Maximum (LGM), Heinrich Stadial 1 (HS1) and mid-Holocene (6 ka) climates, with the largest shift during HS1.

257 citations


Journal ArticleDOI
TL;DR: In this article, the authors presented and interpreted results of 3D magnetotelluric (MT) data inversion from 325 sites acquired from 2006-2011 to provide a regional scale view of electrical resistivity from the middle crust to nearly the mantle transition zone, covering an area from NW Washington to NW Colorado.

219 citations


Journal ArticleDOI
TL;DR: In this article, the atmospheric oxygen contents (O2 and O3) of potentially habitable planets in this type of UV environment could be 2-3 orders of magnitude greater than those of their counterparts around Sun-like stars as a result of decreased photolysis of O3, H2O2, and HO2.

212 citations


Journal ArticleDOI
TL;DR: In this paper, the mean force constants of iron bonds in silicate glasses were measured by synchrotron Nuclear Resonant Inelastic X-ray Scattering (NRIXS).

202 citations


Journal ArticleDOI
TL;DR: The authors presented the first high resolution, well-dated, multiproxy reconstruction of Holocene palaeoclimate from a 10 m long sediment core raised from the Lonar Lake in central India.

200 citations


Journal ArticleDOI
TL;DR: In this paper, high-resolution osmium (Os) isotope stratigraphy across the Cenomanian-Turonian Boundary Interval from 6 sections for four transcontinental settings has produced a record of seawater chemistry that demonstrates regional variability as a function of terrestrial and hydrothermal inputs, revealing the impact of palaeoenvironmental processes.

Journal ArticleDOI
TL;DR: In this paper, the authors presented new 3D seismic images of the APVC crust based on a joint inversion of Rayleigh-wave dispersion from ambient seismic noise and P-wave receiver functions from broadband seismic stations recently deployed in the area.

Journal ArticleDOI
TL;DR: This article examined the topographic evolution of the southeast margin of the Tibetan Plateau throughout the Cenozoic using stable isotope paleo-altimetry of pedogenic carbonates.

Journal ArticleDOI
TL;DR: In this article, the authors carried out a geochemical evaluation and modeled the mechanism responsible for varied Hf isotopic ratios in magmatic zircons of a single granitic rock specimen.

Journal ArticleDOI
TL;DR: In this article, the authors show that the pressure at which degassing occurs, that is the atmospheric pressure in most sensible cases, has a prime influence on the composition of subaerial volcanic gases on planets: high surface pressure produces N 2 -and CO 2 -rich and dry volcanic gases, while low pressure promotes sulfur-rich gases.

Journal ArticleDOI
TL;DR: In this paper, the fluid-absent melting of a phlogopite peridotite at 10 GPa (1000-1300°C) was investigated to understand the source of K2O- and SiO2-rich magmas that occur in continental, post-collisional and island arc settings.

Journal ArticleDOI
TL;DR: In this paper, a correlation between the structural maturity of the fault and the ratio of deep slip to surface slip that occurs on localized zones of surface rupture has been found, which implies that geologic measurements of surface slip along structurally immature faults are likely to significantly underestimate the true slip at depth in large earthquakes.

Journal ArticleDOI
TL;DR: In this paper, the authors focused on U isotopes in recent sediments from the two largest modern anoxic ocean basins, the Black Sea and the Cariaco Basin, with the aim of advancing the understanding of the U isotope systematics in reducing marine environments.

Journal ArticleDOI
TL;DR: In this article, the authors used the first high-resolution paired marine depth profiles of Zn, Cd, δ66Zn and δ114Cd, and suggested that scavenging of zinc onto organic matter plays a major, yet largely unconsidered, role in the marine cycling of zinc.

Journal ArticleDOI
TL;DR: In this article, a model of the upper mantle beneath North America constrained by waveform fits of 717 thousand vertical-component, broadband seismograms, of which over 228 thousand are from the Transportable Array component of USArray, a few tens of thousands from other USArray-affiliated stations, and the rest from global networks and arrays.

Journal ArticleDOI
TL;DR: In this paper, magnetic susceptibility (MS) measurements from the marine marls of the Sancerre-Couy drill-core, southern Paris Basin, spanning the entire Toarcian Stage were used to calibrate the periodicity of the prominent highfrequency C cycles that occur in the decreasing part of the CIE to 30 to 34 kyr.

Journal ArticleDOI
TL;DR: In this paper, sedimentological data and hydrogen isotopic measurements of leaf wax long-chain nalkanes (δDwax) from an alpine lake sediment archive on the southeastern Tibetan Plateau (Paru Co) provide a Holocene perspective of Indian summer monsoon (ISM) activity.

Journal ArticleDOI
TL;DR: In this paper, the triple isotope composition of the Earth mantle, crustal materials and low-T aqueous precipitates is studied. But the authors focus on the effects of low and high-temperature water-rock interaction.

Journal ArticleDOI
TL;DR: In this article, the mass of volatiles degassed from volcanic eruptions is estimated by comparing the volatile concentrations in undegassed glassy melt inclusions with the volatile concentration in the degassed matrix glass.

Journal ArticleDOI
TL;DR: In this article, high-precision (CA-ID-TIMS) U-Pb zircon ages from the Toarcian stage were collected from tephra interstratified with ammonite-bearing carbonates in southernmost Peru.

Journal ArticleDOI
TL;DR: In this article, the authors show that the maintenance of atmospheric pO2 at ∼1% of present atmospheric levels is inconsistent with modern biogeochemical cycling of carbon, sulfur and iron unless new feedbacks are included.

Journal ArticleDOI
TL;DR: In this article, the trace element partition coefficients for a large number of trace elements, in the various minerals present in basaltic rocks, and under diverse conditions, particularly of variable fO2.

Journal ArticleDOI
TL;DR: In this paper, high-resolution transmission electron microscopic (HRTEM) images provided direct evidence of the nano-scale relationship between total organic carbon (TOC) and mineral surface area (MSA).

Journal ArticleDOI
TL;DR: In this article, the average Nd and Hf isotopic data determined on a large number of loess deposits from several continents were used to determine the average composition of the upper continental crust.

Journal ArticleDOI
TL;DR: In this paper, the authors present 28 multiple sulfur isotope measurements of seawater sulfate from the modern ocean over a range of water depths and sites along the eastern margin of the Pacific Ocean and use a box-model to place constraints on the gross fraction of pyrite burial in modern sediments.