Subsurface Dynamics
Subsurface Dynamics - Related Videos
07:58
Data Processing Methods for 3D Seismic Imaging of Subsurface Volcanoes: Applications to the Tarim Flood Basalt
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Cited by 3 •
2017
Three-dimensional (3D) reflection seismology is a powerful method for imaging subsurface volcanoes. By using industrial 3D seismological data from the Tarim Basin, we illustrate how to extract the sills and the conduits of subsurface volcanoes from seismic data cubes.
11:34
Subsurface Defect Localization by Structured Heating Using Laser Projected Photothermal Thermography
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Cited by 7 •
2017
This method aims at locating vertical subsurface defects. Here, we couple a laser with a spatial light modulator and trigger its video input to heat a sample surface deterministically with two anti-phased modulated lines while acquiring highly resolved thermal images. The defect position is retrieved from evaluating thermal wave interference minima.
13:27
Exploring the Effects of Atmospheric Forcings on Evaporation: Experimental Integration of the Atmospheric Boundary Layer and Shallow Subsurface
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Cited by 9 •
2015
A protocol for the design and construction of a soil tank interfaced to a small climate controlled wind tunnel to study the effects of atmospheric forcings on evaporation is presented. Both the soil tank and wind tunnel are instrumented with sensor technologies for the continuous in situ measurement of environmental conditions.
12:03
Dynamics of Structures
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2023
Source: Roberto Leon, Department of Civil and Environmental Engineering, Virginia Tech, Blacksburg, VA It is rare nowadays that a whole year goes by without a major earthquake event wreaking havoc somewhere around the world. In some cases, like the 2005 Banda Ache earthquake in Indonesia, the damage involved large geographic areas and casualties in the six figures. In general, the number and intensity of earthquakes is not increasing, however, the vulnerability of the built environment is...
02:20
Dynamic Equilibrium
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2020
A reversible chemical reaction represents a chemical process that proceeds in both forward (left to right) and reverse (right to left) directions. When the rates of the forward and reverse reactions are equal, the concentrations of the reactant and product species remain constant over time and the system is at equilibrium. A special double arrow is used to emphasize the reversible nature of the reaction. The relative concentrations of reactants and products in equilibrium systems vary greatly;...
FAQs
Groundwater flow transports dissolved solutes through soils, sediments, rocks, and aquifers while also bringing those solutes into contact with mineral surfaces. This movement can promote chemical transformations, including dissolution, precipitation, and oxidation-reduction. Consequently, flow affects whether elements remain mobile, become stored in minerals, or are redistributed through the subsurface.
Mineral surfaces provide reactive locations where dissolved substances can interact with solid materials. These interactions influence the movement and storage of elements, while reactions such as dissolution and precipitation can alter the surrounding chemical environment. Examining mineral-solution relationships therefore helps explain why substances may be transported through an aquifer or retained within soils, sediments, and rocks.
Pressure and temperature are important conditions governing subsurface chemical processes. Along with groundwater flow, dissolved solutes, and mineral surfaces, they influence how materials and energy move and how reactions proceed. Considering these variables helps researchers interpret changes in underground environments and assess how natural or human-driven changes may alter element transport and chemical transformation.
Oxidation-reduction reactions, often called redox reactions, transform chemical species by changing their oxidation states. Within soils, sediments, rocks, and aquifers, these reactions contribute to the transformation and redistribution of elements. Including redox behavior in subsurface analysis is important for explaining chemical change rather than treating underground materials as merely passive pathways for transport.
A study can examine groundwater flow together with mineral surfaces, dissolved solutes, pressure, temperature, and relevant chemical reactions. Researchers then consider how these factors interact across soils, sediments, rocks, and aquifers to determine whether elements are transported, stored, or transformed. This integrated approach connects physical movement with chemical evidence and supports interpretation of underground change.
They are useful when scientists need to understand how substances move through groundwater systems and how underground reactions alter them. The same framework supports groundwater protection by clarifying transport pathways and supports contaminant remediation by examining chemical transformation and storage. It also helps evaluate how subsurface environments respond to human-driven changes.
Subsurface dynamics research helps trace how carbon and nutrients are transported, stored, and transformed beneath Earth’s surface. Groundwater movement, mineral interactions, and reactions such as dissolution, precipitation, and oxidation-reduction provide the chemical context for these cycles. This perspective connects local behavior in soils, sediments, rocks, and aquifers with broader studies of elemental cycling.
Understanding subsurface transport and reaction processes helps explain how elements are distributed and retained in underground materials, which is relevant to geological resource management. The same knowledge supports predictions about responses to natural or human-driven changes. By linking flow, chemical conditions, and mineral interactions, researchers can evaluate likely changes in subsurface storage and transformation.