Rapid modelling of reactive transport in porous media using machine learning: limitations and solutions [PDF]
arXivReactive transport in porous media plays a pivotal role in subsurface reservoir processes, influencing fluid properties and geochemical characteristics. However, coupling fluid flow and transport with geochemical reactions is computationally intensive, requiring geochemical calculations at each grid cell and each time step within a discretized ...
arxiv
Geo-neutrinos, Mantle Circulation and Silicate Earth [PDF]
arXiv, 2004 In preparation to the experimental results which will be available in the future, we consider geo-neutrino production in greater detail than in [F. Mantovani et al., arXiv:hep-ph/0309013], putting the basis for a more refined model. We study geo-neutrino production for different models of matter circulation and composition in the mantle.
arxiv
Natural radioelement concentration in the Troodos Ophiolite Complex of Cyprus [PDF]
J. Geochemical Exploration 85 (2005) 47-54, 2004 High-resolution gamma-ray spectrometry was exploited to determine naturally occurring thorium (Th), uranium (U) and potassium (K) elemental concentrations in the whole area covered by the Troodos Ophiolite Complex of Cyprus. For that purpose, a total of 59 samples from surface soils and 10 from the main rock formations of the region of interest were ...
arxiv
Identifying the Unique Geochemical Fingerprints of Omo Group Beds around Lake Turkana, Kenya by Modified Gaussian Discrimination Analysis [PDF]
arXivA modified Gaussian Discriminant Analysis (GDA) is used with an optimal search strategy to identify the unique geochemical fingerprints of six different geological beds in the Lake Turkana area. Three-hundred samples were collected from six different beds in the Omo Group of Lake Turkana, where each sample consisted of the PPMs of 11 different chemical
arxiv
Instrumentation For Geological Fieldwork on the Moon [PDF]
arXiv, 2005 A human return to the Moon will require that astronauts are well equipped with instrumentation to aid their investigations during geological field work. Two instruments are described in detail. The first is a portable X-ray Spectrometer, which can provide rapid geochemical analyses of rocks and soils, identify lunar resources and aid selection of ...
arxiv
Assessing the feasibility and consequences of nuclear georeactors in the Earths core mantle boundary [PDF]
arXiv, 2008 We assess the likelihood and geochemical consequences of the presence of nuclear georeactors in the core mantle boundary region (CMB) between Earths silicate mantle and metallic core. Current geochemical models for the Earths interior predict that U and Th in the CMB are concentrated exclusively in the mineral calcium silicate perovskite (CaPv ...
arxiv
Knowledge Gaps and Research Needs for Modeling CO2 Mineralization in the Basalt-CO2-Water System: A Review of Laboratory Experiments [PDF]
arXivCarbon capture and storage in basalt is being actively investigated as a scalable climate change mitigation option. Accurate geochemical modeling prediction of the extent and rate of CO2 mineralization is a critical component in assessing the local and global feasibility and efficacy of this strategy.
arxiv
Известия Томского политехнического университета [Известия ТПУ]. Т. 324, № 1 : Науки о Земле [PDF]
, 2014 core