Results 31 to 40 of about 79,104 (288)
Reservoir theory for studying the geochemical evolution of soils [PDF]
, 2010 [1] Linking mineral weathering rates measured in the laboratory to those measured at the landscape scale is problematic. In laboratory studies, collections of minerals are exposed to the same weathering environment over a fixed amount of time. In natural
Almond +58 more
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Geochemical Modeling from the Asteroid Belt to the Kuiper Belt: Systematic Review
EncyclopediaThe high costs and time-consuming nature of space exploration missions are among the major barriers to studying deep space. The lack of samples and limited information make such studies challenging, highlighting the need for innovative solutions ...
Arash Yoosefdoost, Rafael M. Santos
doaj +1 more source
Open Agriculture, 2019 Loss of phosphorus from agricultural land through water runoff causes serious detrimental effects on the environment and on water quality. Phosphorous runoff from excessive use of fertilizers can cause algal blooms to grow in nearby water systems ...
Hayder Aneela +3 more
doaj +1 more source
Spanish Journal of Agricultural Research, 2014 Salinity contamination caused by irrigation has been widely studied but the analysis of geochemical processes regarding agronomic variables has not adequately been considered yet.
Iker Garcia-Garizabal +3 more
doaj +1 more source
Frontiers in Earth Science, 2022 In this study, key geochemical features of magmas formed in eight different tectono-magmatic settings (mid-ocean ridges, oceanic islands, oceanic plateaus, continental flood basalt provinces, intra-oceanic arcs, continental arcs, island arcs, and back ...
Kenta Ueki +2 more
doaj +1 more source
Cement-rock interaction : infiltration of a high-pH solution into a fractured granite core [PDF]
, 2010 Within the framework of the HPF project (Hyperalkaline Plume in Fractured Rock) at the Grimsel Test Site (Switzerland), a small scale core infiltration experiment was performed at the University of Bern.
Mäder, Urs K., Soler, Josep M.
core +5 more sources
A Role for Subducted Oceanic Crust in Generating the Depleted Mid‐Ocean Ridge Basalt Mantle
Geochemistry, Geophysics, Geosystems, 2020 The composition of Earth's mantle, continental crust, and oceanic crust continuously evolve in response to the dynamic forces of plate tectonics and mantle convection.
Jonathan M. Tucker +3 more
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Cretaceous-to-recent record of elevated 3He/4He along the Hawaiian-Emperor volcanic chain [PDF]
, 2004 Helium isotopes are a robust geochemical tracer of a primordial mantle component in hot spot volcanism. The high 3He/4He (up to 35 RA, where RA is the atmospheric 3He/4He ratio of 1.39 × 10−6) of some Hawaiian Island volcanism is perhaps the classic ...
Duncan, R. A. +4 more
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Geochemical Modeling of Fractional Magma Crystallization
Undergraduate Journal of Mathematical Modeling: One + Two, 2018 Modern day geologists use many different modeling programs such as Geospatial Information Systems in addition to R (programming language) for a wide array of applications such as: projecting collected data for mapping, visualization, and trend prediction.
Luke Varner
doaj +1 more source
Ultra-depleted melts from Kamchatkan ophiolites : evidence for the interaction of the Hawaiian plume with an oceanic spreading center in the Cretaceous? [PDF]
, 2009 We report new data on the major and trace element composition of melt inclusions in spinel phenocrysts (Mg# = 0.7-0.8, Cr/(Cr + Al) = 0.32-0.52, TiO2 = 0.06-0.60 wt.%) from Cretaceous MORB-like basalt (La/Yb = 0.94, Th/Nb = 0.055, Th/La = 0.041) in the ...
Hoernle, Kaj +2 more
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