Results 41 to 50 of about 330,203 (416)
Coal rock image recognition method based on improved CLBP and receptive field theory
Deep Underground Science and Engineering, Volume 1, Issue 2, Page 165-173, December 2022., 2022 In view of the evident differences between coal and rock in visual attributes such as color, gloss, and texture, the complete local binary pattern (CLBP) image feature descriptor is introduced for coal and rock image recognition, and the original algorithm oversimplifies local texture features by ignoring imaging information from higher‐order pixels ...
Chuanmeng Sun +4 more
wiley +1 more source
Influence of Geochemistry on Toughening Behavior of Organic-Rich Shale [PDF]
, 2018 Our research objective is to understand the influence of geochemistry on the fracture behavior of organic-rich shale at multiple length-scales. Despite an increasing focus on the fracture behavior of organic-rich shale, the relationships between geochemistry and fracture behavior remain unclear and there is a scarcity of experimental data available. To
arxiv +1 more source
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 +13 more
doaj +1 more source
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 +6 more
doaj +1 more source
Devolatilization of Subducting Slabs, Part I: Thermodynamic Parameterization and Open System Effects [PDF]
Geochemistry, Geophysics,Geosystems, 20 (2019), 2019 The amount of H$_2$O and CO$_2$ that is carried into deep mantle by subduction beyond subarc depths is of fundamental importance to the deep volatile cycle but remains debated. Given the large uncertainties surrounding the spatio-temporal pattern of fluid flow and the equilibrium state within subducting slabs, a model of H$_2$O and CO$_2$ transport in ...
arxiv +1 more source
The Forum of European Geological Surveys Geochemistry Task Group 1994-1996 inventory [PDF]
, 1997 The Forum of European Geological Surveys (FOREGS) includes representatives from 33 European countries and is responsible for co-ordinating Geological Survey activities in Europe.
Fordyce, F.M. +5 more
core +1 more source
Devolatilization of Subducting Slabs, Part II: Volatile Fluxes and Storage [PDF]
Geochemistry, Geophysics, Geosystems, 20 (2019), 2019 Subduction is a crucial part of the long-term water and carbon cycling between Earth's exosphere and interior. However, there is broad disagreement over how much water and carbon is liberated from subducting slabs to the mantle wedge and transported to island-arc volcanoes.
arxiv +1 more source
Petrology of some oceanic island basalts: PRIMELT2.XLS software for primary magma calculation [PDF]
, 2008 PRIMELT2.XLS software is introduced for calculating primary magma composition and mantle potential temperature (TP) from an observed lava composition. It is an upgrade over a previous version in that it includes garnet peridotite melting and it detects ...
Asimow, Paul D., Herzberg, C.
core +1 more source
Geofluids, 2021 A large amount of light crude oils have been found within 4000 to 7000 m deep strata of Cambrian, Ordovician, and Silurian reservoirs in the Tarim Basin, NW China.
Qian Deng +8 more
doaj +1 more source
Calibration of pressure-dependent sensitivity and discrimination in Nier-type noble gas ion sources [PDF]
, 2000 The efficiency of many noble gas mass spectrometers to ionize gas species is known to be a function of the pressure of gas in the spectrometer. This work shows how the half plate voltage for maximum He or Ar signal depends on the spectrometer pressure ...
Burnard, P. G., Farley, K. A.
core +1 more source