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10021por Song, Wenlei, Xu, Cheng, Smith, Martin P., Kynicky, Jindrich, Huang, Kangjun, Wei, Chunwan, Zhou, Li, Shu, Qihai“…Here, we report the identification of Late Triassic HREE-Mo-rich carbonatites in the northernmost Qinling orogen. The rocks contain abundant primary HREE minerals and molybdenite. …”
Publicado 2016
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10022“…Pure shear fracture test, as a special mechanical means, had been carried out extensively to obtain the critical information for traditional metallic crystalline materials and rocks, such as the intrinsic deformation behavior and fracture mechanism. …”
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10023por Wadsworth, Fabian B., Heap, Michael J., Damby, David E., Hess, Kai-Uwe, Najorka, Jens, Vasseur, Jérémie, Fahrner, Dominik, Dingwell, Donald B.“…During vitrification, the granular wall rocks partially melt, sinter viscously and densify, reducing inter-particle porosity. …”
Publicado 2017
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10024“…Our modelling also predicts the association of the largest porphyry deposits with a specific Sr/Y interval (~100 ± 50) of the associated magmatic rocks, which is virtually identical to the range measured in giant porphyry copper deposits.…”
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10025“…RESULTS: New data obtained from cold crushing to liberate volatiles from fluid inclusions confirm that granites and gneiss of Archean and Palaeoproterozoic (>1600 Ma) age typically contain an order of magnitude greater hydrogen in their entrained fluid than very young (<200 Ma) granites. Sedimentary rocks containing clasts of old basement also include a greater proportion of hydrogen than the young granites. …”
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10026“…We show that while Ga has a geochemical behavior different from zinc, both elements show a systematic enrichment in the heavier isotopes in lunar mare basalts and Mg-suite rocks compared to the silicate Earth, pointing to a global-scale depletion event. …”
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10027“…We know that strong shaking induced by seismic waves from large earthquakes can change the permeability of rocks. Thus, the boundary of a pressurized compartment may see its permeability rise. …”
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10028por Gholami Zadeh, Parisa, Adabi, Mohammad Hossein, Hisada, Ken-ichiro, Hosseini-Barzi, Mahboubeh, Sadeghi, Abbas, Ghassemi, Mohammad Reza“…Geoscientists have always considered the Neyriz region, located along the Zagros Suture Zone, an important area of interest because of the outcrops of Neotethys ophiolitic rocks. We carried out a modal analysis of the Cenozoic sandstones and geochemistry of the detrital Cr-spinels at Neyriz region in order to determine their provenance and tectonic evolution in the proximal part of Zagros Basin. …”
Publicado 2017
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10029“…Here we propose a novel model of quartz vein formation associated with fluid advection from host rocks and silica precipitation in a crack, in order to quantify the timescale of crack sealing. …”
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10030“…We have traced the particle path of high-pressure metasedimentary rocks on Elba Island, Northern Apennines, with the help of a U-Pb-Hf detrital zircon study. …”
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10031por Helm, Charles W., McCrea, Richard T., Cawthra, Hayley C., Lockley, Martin G., Cowling, Richard M., Marean, Curtis W., Thesen, Guy H. H., Pigeon, Tammy S., Hattingh, Sinèad“…A Late Pleistocene hominin tracksite has been identified in coastal aeolianite rocks on the Cape south coast of South Africa, an area of great significance for the emergence of modern humans. …”
Publicado 2018
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10032por Xu, Mengxuan, Chen, Liang, Yao, Zhiming, Ren, Shuqing, Zhang, Yuying, Huang, Feng, Ji, Xu, He, Chaohui, Zhou, Leidang, Hu, Jing, He, Shiyi, Zhao, Kuo, Ouyang, Xiaoping“…The crystal exhibits good crystallinity and scintillation properties with a 63.94-arcsec full-width at half-maximum (FWHM) in the X-ray rocking curve (XRC) spectrum, 8% luminous non-uniformity, emission at 389 nm in the X-ray excited luminescence spectrum, fast response and 5.5% BGO luminous intensity. …”
Publicado 2018
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10033“…A simple and rapid method has been developed to determine (226)Ra in rocks, soils, and sediments. Samples are decomposed by fusion with lithium metaborate and the melt is dissolved in a solution containing sulfates and citric acid. …”
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10034por Varanasi, Swambabu, Garusinghe, Uthpala, Simon, George P, Garnier, Gil, Batchelor, Warren“…Inspired by the natural precipitation of minerals in soil and rocks, a novel, simple and industrially scalable in-situ precipitation process to produce low permeability porous composites is presented. …”
Publicado 2018
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10035por Otálora, Fermin, Mazurier, A., Garcia-Ruiz, J. M., Van Kranendonk, M. J., Kotopoulou, E., El Albani, A., Garrido, C. J.“…However, when the crystal itself has been dissolved, replaced or deeply modified during the geological history of the rocks, diffraction information is not available. …”
Publicado 2018
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10036“…The available ages for alkaline rocks indicate a well-defined time-interval between 72.4 to 91 Ma (concentrated between 76 and 88 Ma) period of uplift that contributed to large-scale drainage compartmentalization in the region. …”
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10037“…We present the case of a 21-year-old woman whose left arm became caught between the side of a waterslide and adjacent rocks at a park. She sustained a torsional and axial loading injury to her left upper extremity resulting in ipsilateral humeral shaft and Galeazzi fractures. …”
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10038“…We investigate the impact that the rheology of rocks constituting the volcanic edifice has on the deformation mechanisms preceding eruptions. …”
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10039“…Further annealing led to the dissipation of Cl, resulting in the shrinkage of <001> grains while <110> grains continuously grew, as analyzed by x-ray rocking curve and diffraction. As a result of reduced grain boundaries and enhanced <110> texture, the trap density of perovskite solar cells diminished by ~10% by incorporating MACl in the precursor, resulting in a fill factor more than 80%.…”
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10040por Okabe, Taiki, Oyama, Hikaru, Kashitani, Maho, Ishimaru, Yuta, Suo, Rei, Sugita, Haruo, Itoi, Shiro“…In this study, we describe the behavior of the pufferfish in the intertidal zone that appears to contribute to its toxification before and during its spawning period: pufferfish were found to aggregate and ingest flatworm egg plates by scraping them off the surface of rocks. DNA analysis based on 28S rRNA and cytochrome c oxidase subunit I (COI) genes identified the egg plates as those of P. multitentaculata. …”
Publicado 2019
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