Klötzli et al. (2001) present a genetic model for a particulargranitic rock unit within the Variscan (Carboniferous) SouthBohemian Batholith. We studied and published on these same rockssome years previously (Finger & Clemens, 1995). The interpretationsof Klötzli et al. (2001) contrast so significantly withour own that we consider it necessary to comment briefly ontheir paper. The rock unit in question is the so-called Sarleinsbach quartzmonzodiorite (SQMD), first described by Frasl & Finger (1988).This unit is an opx-bearing facies of the Weinsberg granite—avery coarse-grained biotite granite and the most prominent rocktype in the batholith. As with all granitic units assigned tothe Weinsberg type, the SQMD contains large K-feldspar phenocrysts.On  相似文献   

20.
Households disaster memory recollection after the 2013 Colorado flood     
Wu  Hao-Che 《Natural Hazards》2020,102(3):1175-1185
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   

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1.
Malov  I. F.  Marozava  H. P. 《Astronomy Reports》2022,66(1):25-31
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   

2.
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   

3.
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   

4.
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   

5.
Sun  Wenqing  Dai  Lidong  Li  Heping  Hu  Haiying  Jiang  Jianjun  Hui  Keshi 《Mineralogy and Petrology》2017,111(6):853-863
Mineralogy and Petrology - The electrical conductivity of phyllite (measured in situ at 0.5–2.5 GPa and 773–1173 K) increases with increasing temperature, satisfying...  相似文献   

6.
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   

7.
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   

8.
Peng  Taixin  Chen  Ningsheng  Hu  Guisheng  Tian  Shufeng  Han  Zheng  Liu  Enlong 《Natural Hazards》2021,108(3):2855-2877
Natural Hazards - On 6 July 2020, 3 h 40 min after rainfall stopped, a delayed debris-flow disaster occurred due to colluvium deposits in a hollow region (CDH) in the...  相似文献   

9.
Howard  E. M. 《Astronomy Reports》2021,65(10):957-961
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   

10.
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   

11.
Bansal  Brijesh K.  Singh  S. K.  Suresh  G.  Mittal  H. 《Natural Hazards》2022,111(2):1885-1905
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   

12.
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   

13.
Whincup  Paul 《Hydrogeology Journal》2021,29(7):2305-2311
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   

14.
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   

15.
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   

16.
Ma  Siyuan  Xu  Chong 《Natural Hazards》2019,96(1):389-412
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   

17.
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   

18.
Yuan  Xueyin  Hu  Yufei  Zhao  Yanjun  Li  Qiang  liu  Chenglin 《Aquatic Geochemistry》2021,27(3):221-239
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   

19.
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