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  1. 9721
    “…They were employed for direct determination of lead in solder alloys and in galena rocks with a good agreement with the obtained results by atomic absorption spectroscopy.…”
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    Thiopental and Phenytoin as Novel Ionophores for Potentiometric Determination of Lead (II) Ions
  2. 9722
    “…Terminal restriction fragment length polymorphism and 16S rRNA gene sequencing were used to explore the community composition of bacterial communities in biofilms on sediments (epipssamon) and rocks (epilithon) in stream reaches that drain watersheds with contrasting lithologies in the Noatak National Preserve, Alaska. …”
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    Microbial Biogeography of Arctic Streams: Exploring Influences of Lithology and Habitat
  3. 9723
    “…In this study, by using geochemical, isotopic and textural records of rocks erupted from the high-risk Campi Flegrei caldera, we show that the alkaline magmas have evolved toward a critical state of explosive behaviour over a time span shorter than the repose time of most volcanic systems and that these magmas have risen rapidly toward the surface. …”
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    Rapid differentiation in a sill-like magma reservoir: a case study from the campi flegrei caldera
  4. 9724
    “…Density functional theory (DFT) and many-body spectral function calculations show that these states arise from molecular orbitals coupled strongly to carbon–hydrogen rocking modes. Application of a back-gate voltage allows switching between different electronic states of the molecules for fixed sample bias.…”
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    Imaging and Tuning Molecular Levels at the Surface of a Gated Graphene Device
  5. 9725
    “…Black shales are source rocks for petroleum and natural gas, and thus are both geologically and economically important. …”
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    The origin of Cretaceous black shales: a change in the surface ocean ecosystem and its triggers
  6. 9726
    “…Slowly-compressed single crystals, bulk metallic glasses (BMGs), rocks, granular materials, and the earth all deform via intermittent slips or “quakes”. …”
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    Universal Quake Statistics: From Compressed Nanocrystals to Earthquakes
  7. 9727
    “…Molar tooth structures are ptygmatically folded and microspar-filled structures common in early- and mid-Proterozoic (∼2,500–750 million years ago, Ma) subtidal successions, but extremely rare in rocks <750 Ma. Here, on the basis of Mg and S isotopes, we show that molar tooth structures may have formed within sediments where microbial sulphate reduction and methanogenesis converged. …”
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    Molar tooth carbonates and benthic methane fluxes in Proterozoic oceans
  8. 9728
    “…The significant degradation that fossilized biomolecules may experience during burial makes it challenging to assess the biogenicity of organic microstructures in ancient rocks. Here we investigate the molecular signatures of 1.88 Ga Gunflint organic microfossils as a function of their diagenetic history. …”
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    Molecular preservation of 1.88 Ga Gunflint organic microfossils as a function of temperature and mineralogy
  9. 9729
    por Song, Rui, Liu, Jianjun, Cui, Mengmeng
    Publicado 2016
    “…Due to the intricate structure of porous rocks, relationships between porosity or saturation and petrophysical transport properties classically used for reservoir evaluation and recovery strategies are either very complex or nonexistent. …”
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    Single- and two-phase flow simulation based on equivalent pore network extracted from micro-CT images of sandstone core
  10. 9730
    “…The possibility to finely tune the stiffness, size and shape of this simple material makes it an ideal model system for investigations on, for example, fracturing of porous rocks, seismology, or root growth in cohesive porous media.…”
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    A cohesive granular material with tunable elasticity
  11. 9731
    “…The thermal demagnetization of pseudo‐single‐domain (PSD) magnetite (Fe(3)O(4)) particles, which govern the magnetic signal in many igneous rocks, is examined using off‐axis electron holography. …”
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    Direct observation of the thermal demagnetization of magnetic vortex structures in nonideal magnetite recorders
  12. 9732
    “…This approach represents important progress towards time-constrained structural models, where illite characterization and K-Ar analysis are a fundamental tool to date faulting and alteration in crystalline rocks.…”
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    Deconvoluting complex structural histories archived in brittle fault zones
  13. 9733
    “…Most known transporters utilize a “rocking bundle” motion, where the protein moves around an immobile substrate binding site. …”
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    The bacterial dicarboxylate transporter, VcINDY, uses a two-domain elevator-type mechanism
  14. 9734
    “…Deformation microstructures are widely used for reconstructing tectono-metamorphic events recorded in rocks. In crustal settings deformation is often accompanied and/or succeeded by fluid infiltration and dissolution–precipitation reactions. …”
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    Deformation-resembling microstructure created by fluid-mediated dissolution–precipitation reactions
  15. 9735
    “…Geologists know that plate tectonics and erosion have erased much of the geological record, with ancient rocks being truly rare. The same is true of microbes. …”
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    Physiology, phylogeny, and LUCA
  16. 9736
    “…In 2011–2014, most of this gas escaped through permeable roof rocks, feeding surface fumarole activity and leading to a gradual decrease of the Vp/Vs ratio in the reservoir. …”
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    Breathing of the Nevado del Ruiz volcano reservoir, Colombia, inferred from repeated seismic tomography
  17. 9737
    “…Nanoscopic and microscopic water droplets and ice crystals embedded in liquid hydrophobic surroundings are key components of aerosols, rocks, oil fields and the human body. The chemical properties of such droplets critically depend on the interfacial structure of the water droplet. …”
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    The interfacial structure of water droplets in a hydrophobic liquid
  18. 9738
    “…Our results demonstrate that the presence of α-cristobalite in shocked meteorites or rocks does not exclude that materials experienced high pressure, nor is the presence of seifertite necessarily indicative of extremely high peak shock pressures.…”
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    Compressional pathways of α-cristobalite, structure of cristobalite X-I, and towards the understanding of seifertite formation
  19. 9739
    “…Mineralogical and geochemical variations from these sedimentary rocks indicate that dynamic global marine redox conditions, enhanced by local restriction, may have led to an increase in dissolved phosphate in pore and bottom waters of the Fifteenmile basin and facilitated the necessary geochemical conditions for the advent of calcium phosphate biomineralization.…”
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    Controlled hydroxyapatite biomineralization in an ~810 million-year-old unicellular eukaryote
  20. 9740
    “…Our results demonstrate that the ASR method can be used for rocks recovered from depths as deep as 7 km to recover reliable stress state information. …”
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    Stress state measured at ~7 km depth in the Tarim Basin, NW China
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