Showing papers in "Earth and Planetary Science Letters in 2016"

TL;DR: The authors of as discussed by the authors suggest that internal rifting and breakup of the Rodinia supercontinent were linked to the initiation of subduction and development of accretionary orogens around its periphery.

TL;DR: In this paper, the authors used the Nd isotope data to model the mafic detrital input into sedimentary basins in northern Rodinia and found that flood basalt weathering contributed to both the high average δ 13 C of seawater in the Neoproterozoic and to the initiation of the first Sturtian Snowball Earth.

TL;DR: In this paper, it was shown that chondrules and matrix separated from the Allende CV3 chondrite have complementary nucleosynthetic Mo isotope anomalies, indicating that both components are genetically linked and formed together from one common reservoir of solar nebula dust.

TL;DR: In this paper, the authors investigate whether anything like this modern pattern of geomagnetic secular variation persists and can be detected in global paleomagnetic field models, and they show that the dipole has exhibited both growth and decay over the interval 0-10,000 BP.

TL;DR: In this article, high-resolution Fe-S-C-Al trace element geochemical records from the early Cambrian Yangtze Platform were used to infer that the global ocean exhibited a high degree of redox heterogeneity during the early stages of the Cambrian, consistent with low atmospheric oxygen levels ( ∼ 10 − 40 % of present atmospheric level).

TL;DR: Using a newly-calibrated relation for cerium redox equilibria in silicate melts (Smythe and Brenan, 2015), and an internally consistent model for zircon-melt partitioning of Ce, the authors provided a method to estimate the prevailing redox conditions during crystallization of ZIRcon-saturated magmas.

TL;DR: In this paper, a model composition of cometary composition based on literature data and the ROSINA measurements is established, and provided that 67P is representative of the cometary ice reservoir, they conclude that the contribution from cometary volatiles to the Earth's inventory was minor for water (≤ 1%), carbon, nitrogen, and nitrogen species (a few % at most).

TL;DR: This article showed that post-collisional mafic magmas and their derivatives represent a non-negligible contribution to crustal growth, despite having zircons with "crust-like" Hf-O isotope signatures.

TL;DR: In this article, the authors used high-precision U-Pb zircon dating to study the formation and evolution of the metamorphic sole at two well-studied localities.

TL;DR: In this article, the authors used a two-dimensional model that considers flow in parallel layers to determine the porosity of the tensile fractures in low-porosity andesites.

TL;DR: In this article, a finite-frequency tomographic inversion was performed to image 3D velocity structures beneath southern and central Tibet using teleseismic body-wave data recorded by the TIBET-31N passive seismic array as well as waveforms from previous temporary seismic arrays.

TL;DR: In this paper, the authors report new precise earthquake hypocenters, detailed tomographic images and earthquake source mechanisms, which allow distinguishing a narrow sliver of Indian lithosphere beneath the deepest Hindu Kush earthquakes and a broad, arcuate slab of Asian lithosphere under the Pamir.

TL;DR: In this paper, the detrital zircon U-Pb geochronology of the Cenozoic strata in this area was provided, and the strong resemblance of U−Pb age spectra of the Hangu, Lockhart and Patala formations with those of Himalayan strata indicate an Indian plate provenance.

TL;DR: In this paper, a mascon fitting method was used to estimate the terrestrial water storage (TWS) changes during the period, from which the hydrology contributions and the GIA effects were effectively deducted to give the estimates of GWS changes for 12 selected regions of interest.

TL;DR: In this article, the first reported evidence of continental crust with these ages in the Yangtze Block of the South China Craton was presented, along with a sequence of events similar to that recorded for the northwestern region of Laurentia and possibly Siberia, which are associated with assembly of the Nuna supercontinent.

TL;DR: In this article, the authors highlight two successive rheological switches across the subduction interface (mantle wedge vs basalts, then mantle wedge vs. sediments) during which interplate mechanical coupling is maximized by the existence of transiently similar rheologies across the plate contact.

TL;DR: In this article, the Bajo de la Alumbrera porphyry copper deposit in Northwest Argentina has been investigated using high-precision CA-ID-TIMS to constrain the duration of ore formation, including pre-, syn-and post-mineralisation porphyries.

TL;DR: In this paper, a large set of zinc (Zn) stable isotope data for continental basalts from eastern China were reported to investigate the application of Zn isotopes as a new tracer of deep carbonate cycling.

TL;DR: The West African Monsoon (WAM) is crucial for the socio-economic stability of millions of people living in the Sahel region of Africa as discussed by the authors, and the WAM is the main source of water supply for the region.

TL;DR: In this article, the authors show that the rate of CO 2 consumption associated with the weathering of basaltic rocks is strongly correlated with mean annual temperature as predicted by chemical kinetics.

TL;DR: In this paper, the results of X-ray absorption near-edge structure (XANES) spectroscopy at the iron K-edge carried out for a series of melt inclusions and matrix glasses from ejecta associated with three eruptions of Kīlauea volcano (Hawai‘i) were presented.

TL;DR: The timing of the end-Permian mass extinction and subsequent prolonged recovery during the Early Triassic Epoch can be established from astronomically controlled climate cycles recorded in continuous marine sedimentary sections.

TL;DR: In this article, two volcanic complexes are identified and described in the context of continental rifting and diachronous continental breakup of the South China Sea, and the relative location of volcanic complexes in the Baiyun Sag, and their stratigraphic position, reveals prolonged magmatism inboard of the ocean-continent transition zone during continental breakup.

TL;DR: In this article, the authors present the first comprehensive provenance study of Taklamakan desert sand with the aim to characterise the interplay of wind and water and their roles in the formation of the sand sea, and to consider the potential of the Tarim Basin as a contributing source to the Chinese Loess Plateau.

TL;DR: In-situ analyses reveal the presence of hydrogen within calcium sulfate veins crosscutting the sediments found in Gale crater as mentioned in this paper, which is consistent with a hyperarid climate and favored by burial or impacts.

TL;DR: In this paper, the authors demonstrate that the North Himalayan metamorphic rocks in the eastern Himalaya underwent Early Eocene (48-45 Ma) medium-pressure (MP) metamorphism due to shallow subduction of the Indian continent beneath southeastern Tibet.

TL;DR: In this paper, a revised Early Jurassic time scale with a significantly shortened Sinemurian stage duration of 6.9±0.4 Myr was proposed, and the Pliensbachian seawater 87Sr/86Sr record was calibrated against the new time scale.

TL;DR: In this paper, the authors monitored 106 turbidity currents at Squamish Delta, British Columbia during 2011 and found that the largest peaks in river discharge did not create hyperpycnal flows and that delayed delta-lip failures occurred 8-11 h after flood peaks, due to cumulative delta top sedimentation and tidally-induced pore pressure changes.

TL;DR: In this paper, a 3D crustal and upper mantle S-wave velocity model of NE China is constructed by inversion of phase velocity dispersion curves at 6-140 s periods from ambient noise tomography and two-plane surface wave tomography.