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9141“…Granites are emblematic rocks developed from a magma that crystallized in the Earth’s crust. …”
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9142“…The stability of rocks facing natural hazards is analyzed and compared; the stability of coals formed in different periods in China is studied; and a new brittleness index for reservoir rocks is proposed. …”
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9143por Fan, Zhiyuan, Mao, Zhongyang, Liu, Xiang, Yi, Lei, Zhang, Tao, Huang, Xiaojun, Deng, Min“…A large number of studies have shown that there are significant differences in the expansibility of different dolostones, and the key factors determining the expansibility of alkali carbonate rocks have not been clarified. In this paper, rocks were selected from five different geological ages: Jixianian, Cambrian, Ordovician, Devonian, and Triassic ages. …”
Publicado 2022
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9144por Puwanun, Sasima, Delaine‐Smith, Robin M., Colley, Helen E., Yates, Julian M., MacNeil, Sheila, Reilly, Gwendolen C.“…From day 4 of culture onwards, samples were rocked at 45 cycles/min for 1 h/day, 5 days/week (rocking group). …”
Publicado 2017
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9145por Liang, Jiacheng, Bian, Weiwei, Jiao, Xianwei, Peng, Wenxiao, Ma, Jiahui, Wang, Suo, Ma, Yiming, Zhang, Shihong, Wu, Huaichun, Li, Haiyan, Shi, Yuruo, Yang, Tianshui“…The new Zircon SHRIMP U–Pb dating of 139.9 ± 4.6 Ma, as well as previous ages from the Zhela Formation volcanic rocks in the Tethyan Himalaya, show that the studied Zhela Formation volcanic rocks formed during the Late Jurassic-Early Cretaceous, rather than the Middle Jurassic. …”
Publicado 2023
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9146por Cohen, Barbara A., Malespin, Charles A., Farley, Kenneth A., Martin, Peter E., Cho, Yuichiro, Mahaffy, Paul R.“…We review the in situ geochronology experiments conducted by the Mars Science Laboratory mission's Curiosity rover to understand when the Gale Crater rocks formed, underwent alteration, and became exposed to cosmogenic radiation. …”
Publicado 2019
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9147por Marschalko, Marian, Zięba, Zofia, Kubáč, Jan, Růžičková, Kateřina, Matušková, Simona, Dąbrowska, Jolanta, Sysala, David“…Rocks were newly classified into three (easy, medium and difficult) categories of earthwork realization difficulty. …”
Publicado 2023
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9148por Liu, Xiaoyan, Wang, Hongmei, Wang, Weiqi, Cheng, Xiaoyu, Wang, Yiheng, Li, Qing, Li, Lu, Ma, Liyuan, Lu, Xiaolu, Tuovinen, Olli H.“…Nitrate impacted more on bacterial communities in weathered rocks at the genus level than in sediments because more genera significantly correlated with nitrate concentration in weathered rocks. …”
Publicado 2023
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9149por Zaczek, Kirsten, Troll, Valentin R., Cachao, Mario, Ferreira, Jorge, Deegan, Frances M., Carracedo, Juan Carlos, Soler, Vicente, Meade, Fiona C., Burchardt, Steffi“…The recent discovery of submarine Cretaceous volcanic rocks near the westernmost island of El Hierro now questions this systematic age-progression within the archipelago. …”
Publicado 2015
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9150“…We report in situ O and Hf isotope data of zircon grains from coeval Mesoproterozoic (ca. 1.4 Ga) igneous metamafic (amphibolite) and granitic rocks of the Chinese Central Tianshan microcontinent (CTM) in the southern Central Asian Orogenic Belt (CAOB). …”
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9151por Kagami, Hiroo, Kawano, Yoshinobu, Ikawa, Toshiyuki, Nishi, Naoko, Toyoshima, Tsuyoshi, Hamamoto, Takuji, Hayasaka, Yasutaka, Ikeda, Yasuo, Yuhara, Masaki, Tainosho, Yoshiaki“…The Nd-isotopic data on sedimentary and metamorphic rocks of SW Japan Arc allow their discrimination into five different depleted mantle (Tdm) model age clusters, 2.6-2.45 Ga, 2.3-2.05 Ga, 1.9-1.55 Ga, 1.45-1.25 Ga, 1.2-0.85 Ga. …”
Publicado 2004
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9152por Rokityansky, Igor I“…Thus, in the whole set of research on physics of the Earth the studies of electrical conductivity of deep-seated rocks appear, beyond doubt, very important.…”
Publicado 1982
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9153“…Within the Moosegg quarry of the central Northern Calcareous Alps gypsum/anhydrite bodies are tectonically mixed with lenses of sedimentary rocks and decimeter- to meter-sized tectonic clasts of plutonic and subvolcanic rocks and rare metamorphics. …”
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9154“…Sky island scorpions shelter under rocks and other surface debris, but, as with other scorpions, it is unclear whether these species select retreat sites randomly. …”
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9155por Pansing, Elizabeth R., Tomback, Diana F., Wunder, Michael B., French, Joshua P., Wagner, Aaron C.“…At the southern study area, we found higher odds of 1) pilferage near rocks and trees relative to no object in subalpine forest, 2) germination near rocks relative to trees within both elevation zones, and 3) seedling survival near rocks and trees relative to no object at treeline. …”
Publicado 2017
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9156Site of asteroid impact changed the history of life on Earth: the low probability of mass extinction“…Sixty-six million years ago, an asteroid approximately 9 km in diameter hit the hydrocarbon- and sulfur-rich sedimentary rocks in what is now Mexico. Recent studies have shown that this impact at the Yucatan Peninsula heated the hydrocarbon and sulfur in these rocks, forming stratospheric soot and sulfate aerosols and causing extreme global cooling and drought. …”
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9157por Haslam, Michael, Fujii, Jessica, Espinosa, Sarah, Mayer, Karl, Ralls, Katherine, Tinker, M. Tim, Uomini, Natalie“…Sea otters repeatedly used the same rocks as anvils, which resulted in distinctive wear patterns on the rocks and accumulations of broken mussel shells, all fractured in a characteristic way, below them. …”
Publicado 2019
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9158por Amsellem, Elsa, Moynier, Frédéric, Bertrand, Hervé, Bouyon, Amaury, Mata, João, Tappe, Sebastian, Day, James M. D.“…The origin of carbonatites—igneous rocks with more than 50% of carbonate minerals—and whether they originate from a primary mantle source or from recycling of surface materials are still debated. …”
Publicado 2020
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9159“…Fossilized chlorophylls present in sedimentary rocks can be detected by their conversion into maleimides and phthalimides. …”
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9160“…Neogene alkaline intraplate volcanic rocks from the Viliga Volcanic Field (NE-Russia) were studied both to precisely characterize their geochemical composition and to unravel their petrogenetic history. …”
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