共查询到20条相似文献,搜索用时 31 毫秒
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Astronomy Reports - The dependence dP/dt(P) is analyzed for three groups of pulsars with different period values: P > 2 s, 0.1 s < P < 2 s, and P... 相似文献
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International Journal of Earth Sciences - Heat flow high −80 ± 10 mW/m2 in the northern western parts of the Western Canadian foreland basin is in large... 相似文献
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Noori Hirad Shamimi Shirinabadi Reza Moosavi Ehsan Gholinejad Mehran 《Geotechnical and Geological Engineering》2022,40(4):2051-2062
Geotechnical and Geological Engineering - In this study, peak particle velocity (PPV) values for driving three piles with diameters of 40 cm, 50 cm, and 70 cm in a clayey... 相似文献
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Anbazhagan P. Mog Kunjari Rao K. S. Nanjunda Prabhu N. Siddharth Agarwal Ayush Reddy G. R. Ghosh Sima Deb Malay Kr. Baruah Saurabh Das Sarat Kr. 《Natural Hazards》2019,98(2):425-450
Natural Hazards - An earthquake of moment magnitude Mw 5.7 shook the northeastern region of India on 3 January 2017 at 14 h:39 min:0.5 s local time. The duration of the... 相似文献
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Chukanov Nikita V. Zubkova Natalia V. Jančev Simeon Pekov Igor V. Ermolaeva Vera N. Varlamov Dmitry A. Belakovskiy Dmitriy I. Britvin Sergey N. 《Mineralogy and Petrology》2020,114(2):129-140
Mineralogy and Petrology - This paper describes specific features of isomorphism of unusual amphiboles containing up to 23 wt% ZnO and up to 1.3 wt% CuO from sulfide-free... 相似文献
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Astronomy Reports - We study the Kibble–Zurek scaling dynamics and universal second order phase transitions in a relativistic scalar field theory in 1 + 1 dimensions. Using... 相似文献
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Zang Wenbin Liu Shu Huang Shifeng Li Jiren Fu Yicheng Sun Yayong Zheng Jingwei 《Natural Hazards》2019,99(3):1233-1257
Natural Hazards - According to analysing the trends of land use changes in the upper reaches of Minjiang River in the past 30 years and precipitation in the last 50 years, nine... 相似文献
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Terrinha Pedro Pueyo Emilio L. Aranguren Aitor Kullberg José Carlos Kullberg Maria Carla Casas-Sainz Antonio Azevedo Maria do Rosário 《International Journal of Earth Sciences》2018,107(5):1807-1833
International Journal of Earth Sciences - The geometry and emplacement of the ~ 96 km2, Late Cretaceous Sintra Igneous complex (SIC, ca. 80 Ma) into the West Iberian passive... 相似文献
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Natural Hazards - We study source parameters of 10 local earthquakes (2.7 ≤ $$M_{w}$$ ≤ 4.5) that have occurred in the National Capital Region (NCR) since 2001 and... 相似文献
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Hydrogeology Journal - When Charles Darwin moved to Down House, England (UK), in 1842, he inherited a deep well, penetrating 325 ft (~100 m) into the Chalk. The groundwater from... 相似文献
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Lakroud Kawtar Remmal Toufik Makhoukhi Samira Balcone-Boissard Hélène 《Mineralogy and Petrology》2020,114(2):119-128
Mineralogy and Petrology - A Ba- and Ti-rich mica (up to 14.0 wt% BaO and 13.1 wt% TiO2) occurs in nephelinites from the Middle Atlas Volcanic Province, Morocco. The rocks show a... 相似文献
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Zolotarev Andrey A. Zhitova Elena S. Gabdrakhmanova Faina A. Krzhizhanovskaya Maria G. Zolotarev Anatoly A. Krivovichev Sergey V. 《Mineralogy and Petrology》2017,111(6):843-851
Mineralogy and Petrology - The crystal structure of batisite, Na2BaTi2 (Si4O12)O2, from the Inagli massif (Aldan, Yakutia, Russia) was refined to R 1 = 0.032 for 1449 unique... 相似文献
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Mineralogy and Petrology - The deformation features (e.g., undulose extinction and subgrain boundaries) and low Ca content (<1000 ppm) of high-Fo olivine have been widely used as... 相似文献
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Natural Hazards - The April 20, 2013 Mw6.6 earthquake of Lushan County, Sichuan Province, China, has triggered 4540 landslides (>?1000 m2). Exploring a more effective method... 相似文献
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Aquatic Geochemistry - Over the world, the available lithium (Li) resources are reserved mainly in closed-basin brines, with high Li concentration (>?150 mg/L) and low Mg/Li... 相似文献
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S. K. Mandal N. Majumder C. Chowdhury D. Ganguly M. Dey T. K. Jana 《Environmental Earth Sciences》2012,65(7):2027-2036
Elevated concentrations of arsenic in the sediment and pore water in the Sundarban wetlands pose an environmental risk. Adsorption
and desorption are hypothesized to be the major processes controlling arsenic retention in surface sediment under oxic/suboxic
condition. This study aims to investigate sorption kinetics of As(III & V) and its feedback to arsenic mobilization in the
mangrove sediment. It ranges from sand to silty clay loam and shows the adsorption of As(III & V) following the Langmuir relation.
Estimates of the maximum adsorption capacity are 59.11 ± 13.26 μg g−1 for As(III) and 58.45 ± 8.75 μg g−1 at 30°C for As(V) in the pH range 4 to 8 and salinity 15–30 psu. Extent of adsorption decreases with increasing pH from 4
to 8 and desorption is the rate-limiting step in the reaction of arsenic with sediment. Arsenic in the sediment could be from
a Himalayan supply and co-deposited organic matter drives its release from the sediment. Arsenic concentration in the sediment
is well below its maximum absorption capacity, suggesting the release of sorbed arsenic in pore water by the microbial oxidation
of organic matter in the sediment with less feedback of adsorption. 相似文献
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Natural Hazards - There is some evidence supporting that surveys conducted 12–18 months after a disaster can provide accurate assessments of people’s disaster responses during... 相似文献