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tl;dr: no. Long answer: First of all, like mentioned by others in the comments, you would need some physical mechanism to take a whole lot of water, evaporate it, and drop it at once at a place where the Grand Canyon is now. This is not something that's going to happen because of physics. If there was some extraordinary event which could have caused this, ...


8

In addition to all of the above there are meanders inn the Grand Canyon which are hydraulic outcomes of 'minimum energy flow configurations'. This constrains the discharge rates that are possible - to within the normal range of hydrologic discharges. Furthermore there are several places in the Grand Canyon where there is clear evidence of the river having ...


6

The red line or piezometric line is the level to which the water wants to rise - if it were allowed to reach hydrostatic equilibrium. Artesian conditions are anywhere where a confined aquifer sits below the hydraulic head level (the level to which the water wants to rise). In this case the water is confined and cannot reach the water table even though it ...


5

does serpentinization just refer to the formation of some hydrated minerals that happen to be of a class that is historically been referred to as serpentinite or it's subgroup Yes. In simple terms, the reaction is enstatite + forsterite + water = serpentine. MgSiO3 + Mg2SiO4 + 2H2O = Mg3Si2O5(OH)4 Forsterite and enstatite (or more generally, olivine and ...


4

Serpentinization is a system of, chemical reactions which convert anhydrous ferromagnesian silicate minerals (pyroxene, olivine) into hydrous silicate minerals (serpentine) plus some other possibilities like brucite and magnetite. Brucite forms if the precursor rocks are rich in magnesium (dunite, for example). Magnetite forms if there is enough iron ...


4

Aquifers are relatively permeable zones of material that transmit water. Common aquifer materials include layers of unconsolidated sedimentary rock, like sands and gravels; and poorly cemented “bedrock” units like sandstone. Interconnected solution cavities in limestone, called karst, are common in some areas. Calling something an “aquifer” generally infers ...


4

An Inverted or Perched water table is a water table that is above the main or regional water table in an unconfined aquifer. The perched water table is generally above a layer of low permeability material such as clay. In the image below, notice that there is an "inverted" water table along bottom of the perched water table.


4

In only one minute of presentation there isn't time for detailed discussion, so one has to make broad generalizations which, on closer inspection, aren't quite true. It is true that most sand is made of quartz, and that most of this quartz arises from weathered granitic rocks, of which the main minerals are quartz, orthoclase and plagioclase, usually with ...


2

I think your confusion is because you are keeping the head fixed. As you increase Q at fixed T the drawdown curve will become steeper when r1, h1, and h2 are fixed. That means r2 will move towards the pumping well.


2

It's not clear exactly what is being modelled here, but it seems to me that there are two ways in which the concentration can 'go negative'. Firstly, the rate of change of concentration can be massive, in which case see what happens when modelling with much smaller time steps. Or, the diffusion term substantially exceeds the advection term, which is ...


2

Fluid (or 'pore') pressure does not depend only on hydrostatic pressure — it also depends on stratigraphy, fluid content, and the geological history of the rock. The fluid 'stack' can be thought of as a (mostly) connected body of fluid — dominantly brine and hydrocarbons. The rock 'stack' is a similarly interconnected body. The fluid stack defines a typical ...


2

If you are not interested in the vertical flow occurring in your aquifer (which I assume is the case) then one can indeed add the recharge to the existing head! In groundwater issues, we often assume the recharge to be constant over time and equal over distances when considering such problems. This is mainly due to simplification as we are often interested ...


2

The Laplace equation, (d^2 Ψ)/(dx^2 )+(d^2 Ψ)/(dy^2 )+(d^2 Ψ)/(dz^2 )=0, is just a steady state 3D flow equation. It's a black box conservation of hydraulic potential. Diffusion doesn't come into it. The Diffusion equation (assuming homogeneous isotropic conditions) is (∂^2 Ψ)/(∂x^2)+(∂^2Ψ)/(∂y^2)+(∂^2 Ψ)/(∂z^2)= S_s/K ∂h/∂t. This discretizes the time ...


1

Aquifers are detected by boreholes or by water divining. Water divining is a very unscientific method which so far has no rational explanation, yet is often successful. I put this down to the fact that Britain is such a wet country that wherever you drill a borehole you are almost bound to discover water sooner or later. Perhaps a more scientific explanation ...


1

First of all, the rocks do not disappear they dissolve, so they are still there only dissolved into the liquid. You are using an acid (vinegar), this has a low pH. The rocks you are using (limestone) they have a high pH (alkaline). The alkaline rock you add to the acid will dissolve but only until the acid is neutralized. The reaction stops when the pH ...


1

Floods are associated with considerable sediment transport and higher than normal water levels. Therefore, the study of sediment layers in river banks, lake bottoms or the ocean floor can reveal large sediment deposition events, that could be associated with floods or landslides. The characteristics of the sediments can be used to identify the process that ...


1

Virtually every oil / gas well contains old water. However , surface water , mixed with produced water, is injected in some to facilitate production .Last number I saw was that onshore wells in the US averaged 90 % water in the liquid phases.


1

In large intracontinental basins where the main rock formations are exposed in adjoining highlands and rare deeply buried within the basin itself. The Madison Limestone is an example. The Madison and its equivalent strata extend from the Black Hills of western South Dakota to western Montana and eastern Idaho, and from the Canada–United States border to ...


1

Streams that are shallow relative to the thickness of the aquifer in which they lie. Such streams often are referred to in the literature as partially penetrating streams. Most streams are partially penetrating streams. Seepage between a partially penetrating stream and the contiguous aquifer occurs both horizontally and vertically through streambank and ...


1

If the pumping well is partially penetrating in the aquifer or the source above the aquifer (e.g., unconfined aquifer, leaky aquifer, under the stream), the vertical flow should be accounted. The groundwater equation like Thies' solution is not considering the vertical flow. Incorporating the vertical flow would change the governing equation (P.D.E.) form ...


1

In an unconfined aquifer the 'storage' is that fraction of the saturated void space that can be drained. In a confined aquifer, what you are effectively measuring is the compressibility of the aquifer - that is, the water released by depressurizing the aquifer per unit head. They are really two different things. In an unconfined aquifer, the water that is ...


1

There is evidence that at least part of the erosion in the Grand Canyon was caused by an outflow flood caused by the failure of a lava dam. https://www.gcrg.org/bqr/18-1/lava.html There is speculation that glacial lake outflow floods from the glaciers in western Colorado at the end of the last ice age could have contributed as well. More study is needed ...


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