Results 31 to 40 of about 295,573 (332)

Agronomic and Genetic Strategies to Enhance Selenium Accumulation in Crops and Their Influence on Quality

Foods, 2023
Selenium (Se) is an essential trace element that plays a crucial role in maintaining the health of humans, animals, and certain plants. It is extensively present throughout the Earth’s crust and is absorbed by crops in the form of selenates and selenite,
Bingqi Zhou, Haorui Cao, Qingqing Wu, Kang Mao, Xuefeng Yang, Junxia Su, Hua Zhang   +6 more
doaj   +1 more source

The Mersey Estuary : sediment geochemistry [PDF]

, 2012
This report describes a study of the geochemistry of the Mersey estuary carried out between April 2000 and December 2002. The study was the first in a new programme of surveys of the geochemistry of major British estuaries aimed at enhancing our ...
Bee, E., Breward, N., Cave, M., Chenery, S., Gowing, C., Harrison, I., Hodgkinson, E., Humphreys, B., Ingham, M., Jarrow, A., Jenkins, G., Kim, A., Lister, R.T., Milodowski, A., Pearson, S., Ridgway, J., Rowlands, K., Spiro, B., Strutt, M., Turner, P., Vane, C.   +20 more
core  

Oxygen isotope geochemistry of the second HSDP core [PDF]

, 2003
Oxygen isotope ratios were measured in olivine phenocrysts (~1 mm diameter), olivine microphenocrysts (generally ~100–200 µm diameter), glass, and/or matrix from 89 samples collected from depths down to 3079.7 m in the second, and main, HSDP core (HSDP-2)
Eiler, John M., Kitchen, Nami E., Wang, Zhengrong   +2 more
core   +1 more source

Optimal mud pressure design using nonlinear failure criteria for wellbores in shaley sedimentary reservoir

Deep Underground Science and Engineering, EarlyView.
The present study uses the Modified Mohr‐Coulomb true‐triaxial failure criterion (MMC_TT), which predicts the strength of rock better than the MGC criterion in laboratory true‐triaxial tests to overcome the limitations. Moreover, based on the data from previously published five vertical wells in the Krishna‐Godavari basin (K‐G basin), an empirical ...
Ravindra K. Burnwal, Aditya Singh
wiley   +1 more source

Oxygen-isotope and trace element constraints on the origins of silica-rich melts in the subarc mantle [PDF]

, 2007
Peridotitic xenoliths in basaltic andesites from Batan island in the Luzon arc contain silica-rich (broadly dacitic) hydrous melt inclusions that were likely trapped when these rocks were within the upper mantle wedge underlying the arc.
Eiler, J. M., Kita, N. T., Schiano, P., Stolper, E. M., Valley, J. W.   +4 more
core   +4 more sources

Blasting effects of cross‐fault deep‐buried excavation on adjacent existing tunnel stability

Deep Underground Science and Engineering, EarlyView.
Based on the theoretical analysis of cylindrical wave propagation in a deep rock mass in the fault with a filling layer, the calculation method of peak particle velocity caused by wave propagation in the existing tunnel is established. The viscoelastic characteristics of a rock mass are examined in the analysis.
Shaobo Chai, Lianzeng Chai, Chao Meng, Kai Liu, Lang Song, Shaojie Zheng   +5 more
wiley   +1 more source

Boron and Molybdenum Isotope Evidence for Source‐Controlled Compositional Diversity of Cenozoic Granites in the Eastern Tethyan Himalaya

Geochemistry, Geophysics, Geosystems, 2023
The origins of Cenozoic granites in the Himalaya are key to understanding the evolution of the Himalayan orogen. However, it is unclear whether these granites represent primary melts, and the nature of their magma source is controversial.
Jing‐Jing Fan, Qiang Wang, Gang‐Jian Wei, Jie Li, Lin Ma, Xiu‐Zheng Zhang, Zi‐Qi Jiang, Jin‐Long Ma, Jin‐Sheng Zhou, Qi‐Wei Li, Zi‐Long Wang, Xiao Liu, Tong‐Yu Huang, Miao‐Yan Zhang   +13 more
doaj   +1 more source

Northwest Africa 5790. Top Sequence of the Nakhlite Pile [PDF]

, 2010
NWA 5790 is a recently discovered nakhlite. Its mineralogy, petrology and geochemistry suggest that it is the topmost sequence of the nakhlite lava ...
Badia, D., Barrat, J. A., Bollinger, C., Boudouma, O., Franchi, I., Greenwood, R. C., Jambon, A, Sautter, V.   +7 more
core  

PetroPlot: A plotting and data management tool set for Microsoft Excel [PDF]

, 2003
PetroPlot is a 4000-line software code written in Visual Basic for the spreadsheet program Excel that automates plotting and data management tasks for large amount of data.
Asimow, Paul D., Langmuir, Charles H., Su, Yongjun   +2 more
core   +2 more sources

Failure mechanism of the coal wall at the working face based on an eccentric compression mechanical model

Deep Underground Science and Engineering, EarlyView.
In this study, the nonuniform distribution of the bearing pressure in front of the coal wall has been revealed based on in situ monitoring data and numerical simulation results. Therefore, an eccentric compression mechanical model of the coal wall was established to study the deformation and failure characteristics of a coal wall. The slenderness ratio
Maolin Tian, Jiabao Wang, Changsheng Wang, Shijie Sun, Lijun Han, Qingbin Meng, Sunhao Zhang   +6 more
wiley   +1 more source