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Originally posted by Kailassa
reply to post by Blue_Jay33
Supposedly, during the flood, the earth was entirely submerged in water.
You are saying that plate movement, by changing the shape of the terrain and making valleys, lowered the water level.
Let's try a little experiment:
1. Fill an aquarium 1/3rd full of clay and sand.
2. Flatten this mixture out.
3. Fill the aquarium to the 2/3rds mark with water.
4. Change the terrain of the clay/sand bottom by pressing deep trenches into it.
RESULT:
The water level will be unchanged.
Logical Analysis of the Flood Story
the article points out many fatal flaws with the literalist biblical flood story, including my favorite:
Gonorrhea
It is a strictly human disease. Did the Good Lord bestow the gift of gonorrhea on Adam, or was it Eve? Who carried it onto the Ark? Why would God instruct Noah to carry any disease organisms or parasites onto the Ark? One of Noah's family had to have been infected, but they were the only people worthy enough to be saved on the whole Earth. Which one had the clap? Why would He create anything so nasty anyway? -suggested by Noah Riggins
and then there's the population arguement:
Originally posted by Blue_Jay33
Originally posted by Kailassa
reply to post by Blue_Jay33
Supposedly, during the flood, the earth was entirely submerged in water.
You are saying that plate movement, by changing the shape of the terrain and making valleys, lowered the water level.
Let's try a little experiment:
1. Fill an aquarium 1/3rd full of clay and sand.
2. Flatten this mixture out.
3. Fill the aquarium to the 2/3rds mark with water.
4. Change the terrain of the clay/sand bottom by pressing deep trenches into it.
RESULT:
The water level will be unchanged.
You totally missed the point, a new area opened up to hold the water, take your same experiment but attach a sealed tube to the bottom of the aquarium 1 meter deep by 500 cm wide cut a hole in the aquarium.
The result the water level decreased equal to the new area available for the water to now go.
Again the water still stays within the system.
Originally posted by Blue_Jay33
reply to post by Kailassa
I am sorry you can't understand the concept.
c'est la vie !
Originally posted by Blue_Jay33
reply to post by Kailassa
I am sorry you can't understand the concept.
c'est la vie !
Originally posted by Blue_Jay33
The continents rest on huge plates.
Movement of these plates can cause changes in the level of the earth’s surface.
In some places today, there are great underwater abysses more than six miles [more than 10 km] deep at the plate boundaries.
It is quite likely that—perhaps triggered by the Flood itself—the plates moved, the sea bottom sank, and the great trenches opened, allowing the water to drain off the land.
To some extent the earth is still flooded.
Seventy percent of it is covered by water and only 30 percent is dry land. Moreover, 75 percent of the earth’s fresh water is locked up in glaciers and polar ice caps. If all this ice were to melt, the sea level would rise much higher.
Geology professor John McCampbell once wrote: “The essential differences between Biblical catastrophism [the Flood] and evolutionary uniformitarianism are not over the factual data of geology but over the interpretations of those data. The interpretation preferred will depend largely upon the background and presuppositions of the individual student".
So madness your opinion of the interpretation of geology is just that.
The water is still in the system, it never left.
Another example of the redistribution of water is an iceberg.
Water redistribution within the form of ice is a really simple concept that we all learn about in elementary school.
I am surprised you suddenly don't understand it, when it comes to discussing the potential places the water went within the system.
...yes, there is quite a bit of water under the Earth's surface. In fact, we can quantify it....but it's still nowhere near enough to envelop the Earth in water. Hell, I'm not even taking into account absorption by soil...
reply to post by Blue_Jay33
Of course we dismiss claims that have no basis in evidence and are easily refuted by the most basic concepts of hydrodynamics and plate tectonics We have absolutely no evidence of cataclysmic rearranging of continents, only gradual changes.
I do understand such a concept, I just also understand science and mathematics beyond an elementary school level. There is simply not enough water within the system for a global flood to occur without a massive geologic shift that would surely leave massive amounts of evidence behind, especially considering the amount of energy it would release.
Isostasy (Greek ísos "equal", stásis "standstill") is a term used in geology to refer to the state of gravitational equilibrium between the earth's lithosphere and asthenosphere such that the tectonic plates "float" at an elevation which depends on their thickness and density. This concept is invoked to explain how different topographic heights can exist at the Earth's surface. When a certain area of lithosphere reaches the state of isostasy, it is said to be in isostatic equilibrium. Isostasy is not a process that upsets equilibrium, but rather one which restores it (a negative feedback). It is generally accepted that the earth is a dynamic system that responds to loads in many different ways. However, isostasy provides an important 'view' of the processes that are happening in areas that are experiencing vertical movement. Certain areas (such as the Himalayas) are not in isostatic equilibrium, which has forced researchers to identify other reasons to explain their topographic heights (in the case of the Himalayas, which are still rising), by proposing that their elevation is being "propped-up" by the force of the impacting Indian plate. In the simplest example, isostasy is the principle of buoyancy where an object immersed in a liquid is buoyed with a force equal to the weight of the displaced liquid. On a geological scale, isostasy can be observed where the Earth's strong lithosphere exerts stress on the weaker asthenosphere which, over geological time flows laterally such that the load of the lithosphere is accommodated by height adjustments.
The sedimentary record For generations, geologists have been trying to explain the obvious cyclicity of sedimentary deposits observed everywhere we look. The prevailing theories hold that this cyclicity primarily represents the response of depositional processes to the rise and fall of sea level. In the rock record, geologists see times when sea level was astoundingly low alternating with times when sea level was much higher than today, and these anomalies often appear worldwide.
Similar transgressive-regressive sequences are found on other continents, suggesting that worldwide sea level change caused the transgressions and regressions. These worldwide sea level changes were probably related to glaciations and/or seafloor spreading. During times of rapid seafloor spreading, mid-ocean ridge volcanism displaces sea water onto the continents. Cratonic sequences correspond to Vail curves of global sea level change. Vail curves are derived from seismic stratigraphic profiles, which permit tracing of unconformities across the craton and into thick continental margin sedimentary rocks. Vail curve of global sea level changes
In the Late Jurassic and Cretaceous, epicontinental (or epeiric) seas flooded large areas of North America and Europe.
Sea Level Changes Worldwide sea level change is known as eustatic sea level change. Fluctuations in sea level are caused by things such as: 1. Changes in the size of the polar ice caps, due to climatic changes 1. Melting of ice caps leads to sea level rise (transgression). It has been calculated that complete melting of the Antarctic Ice Sheet would cause a sea level rise of 60 - 70 meters (200 feet). 2. Growth of ice caps leads to drop in sea level (regression). Calculations show that sea level was as much as 100 meters (300 feet) lower than at present at the height of the last Ice Age glaciation. Much of the continental shelf would have been exposed and dry. 2. Rate of seafloor spreading - During times of rapid seafloor spreading and submarine volcanism, the ocean ridge system is enlarged by the addition of lava, displacing water onto the edges of the continents (transgression). 3. Localized subsidence or uplift of the land - In the 8000 - 10,000 years since the melting of the last glacial ice sheet over North America, parts of Canada have risen by up to 300 meters due to isostatic uplift associated with removing the weight of the glacial ice sheet. Other areas are subsiding (or sinking), such as the Mississippi delta region. Cyclic rises and drops of sea level related to events along the mid-ocean ridges are known as Vail Cycles (named for Peter R. Vail who demonstrated their use in lithostratigraphic studies). In the past, eustatic sea level rise caused the flooding of vast areas of North America. These high sea level stands produced shallow inland seas that are referred to as epeiric or epicontinental seas.
Marine transgression From Wikipedia, the free encyclopedia Jump to: navigation, search
A marine transgression is a geologic event during which sea level rises relative to the land and the shoreline moves toward higher ground, resulting in flooding. Transgressions can be caused either by the land sinking or the ocean basins filling with water (or decreasing in capacity). Transgressions and regressions may be caused by tectonic events such as orogenies, severe climate change such as ice ages or isostatic adjustments following removal of ice or sediment load. During the Cretaceous, seafloor spreading created a relatively shallow Atlantic basin at the expense of deeper Pacific basin. This reduced the world's ocean basin capacity and caused a rise in sea level worldwide. As a result of this sea level rise, the oceans transgressed completely across the central portion of North America and created the Western Interior Seaway from the Gulf of Mexico to the Arctic Ocean. The opposite of transgression is regression, in which the sea level falls relative to the land and exposes former sea bottom. During the Pleistocene Ice Ages, so much water was removed from the oceans and stored on land as year-round glaciers that the ocean regressed 120 meters, exposing the Bering land bridge between Alaska and Asia. [edit]
Characteristic facies The sedimentary facies changes are indicative of transgressions and regressions and are often easily identified, because of the unique conditions required to deposit each type of sediment. For instance, coarse-grained clastics like sand are usually deposited in nearshore, high-energy environments; fine-grained sediments however, such as silt and carbonate muds, are deposited farther offshore, in deep, low-energy waters.[1] Thus, a transgression reveals itself in the sedimentary column when there is a change from nearshore facies (such as sandstone) to offshore ones (such as marl), from the oldest to the youngest rocks. A regression will feature the opposite pattern, with offshore facies changing to nearshore ones.[1] Regressions are less well-represented in the strata, as their upper layers are often marked by an erosional unconformity. These are both idealized scenarios; in practice identifying transgression or regressions can be more complicated. For instance, a regression may be indicated by a change from carbonates to shale only, or a transgression from sandstone to shale, and so on. Lateral changes in facies are also important; a well-marked transgression sequence in an area where an epeiric sea was deep may be only partial farther away, where the water was shallow. These are factors that should be considered when interpreting a given sedimentary column.
Accommodation The Accommodation Space Equation Over long time scales (105 - 108 years), sediment accumulation is strongly controlled by changes in eustatic sea level, tectonic subsidence rates, and climatic effects on the production of sediment. Several of these factors are linked to one another through the accommodation space equation. This balance of terms is most easily explained for marine sediments, but can be modified easily to include terrestrial sedimentation. A number of processes can cause the surface of the oceans to move up or down relative to the center of the earth. This distance from the sea surface to the center of the earth is eustatic sea level. In addition, the lithosphere can also move up or down relative to the center of the earth. Changes in the distance from some arbitrarily chosen reference horizon and the center of the earth are called uplift or subsidence. The distance between this reference horizon and the sea surface is called relative sea level or accommodation space. Relative Sea Level Acommmodation space can be filled with sediments or water. The distance between the sediment/water interface and the sea surface is known as water depth. The accommodation space not filled with water is filled with sediment. The rates of change of tectonic subsidence, eustatic sea level, sediment thickness and water depth are linked to one another through the accommodation space equation: T + E = S + W where T is the rate of tectonic subsidence, E is the rate of eustatic sea-level rise, S is the rate of sedimentation, and W is the rate of water depth increase (or deepening). These four variables are defined such that positive values correspond to tectonic subsidence and eustatic sea-level rise (factors that increase accommodation space) and sediment accumulation and water depth increase (factors that reflect filling of accommodation space). Reversing the signs of these variables accommodates tectonic uplift, eustatic sea-level fall, erosion, and shallowing of water depth, respectively. The accommodation space equation represents a simple volume balance, with the terms on the left controlling the amount of space that can be occupied by sediments or water and the terms on the right describing how much water or sediment fills the accommodation space. As written, the equation is an approximation. In reality, sediment thickness and water depth must be corrected for compaction of sediments and for the isostatic effects of newly deposited sediment. Through section measurement, changes in sediment thickness can be known, and through facies analysis, changes in water depth can be known or approximated. However, without outside information, the rates of eustatic sea-level change and tectonic subsidence cannot be isolated, nor can their effects be distinguished from one another for a single outcrop. In other words, there is no unique solution to this equation because it has two unknowns. Thus, it is impossible in most cases to ascribe water depth or sedimentation changes to eustasy or tectonics without having regional control or outside information.
In some places today, there are great underwater abysses more than six miles [more than 10 km] deep at the plate boundaries.
Yes, they're called subduction zones.
However tectonic plate movement does not affect global sea levels and global changes in sea-level are measured in metres, not kilometres.
Originally posted by Blue_Jay33
And you cannot prove they existed before the global flood.
Originally posted by Blue_Jay33
reply to post by Kailassa
However tectonic plate movement does not affect global sea levels and global changes in sea-level are measured in metres, not kilometres.
Agreed, and 500 metres of water would cover a lot of land if spread out all across the earth.
500 metres of water? Blue_Jay, you cannot measure water by length, so your above statement is meaningless.
global sea levels and global changes in sea-level are measured in metres, not kilometres.