Why are there seashells on the top of Mount Everest? No I didn’t put them there. The answer is simple. 4400 years ago there was a world wide flood that covered every mountain. The mountains became the temporary home for ocean dwelling animals. When the flood receded they were trapped in the rock and are still there today
http://practicalapologetics.blogspot.com/2007/10/why-are-there-seashells-and-fossils-on.html
Fossilized sea life lies atop every major mountain range on earth—far above sea level and usually far from the nearest body of water. Attempts to explain “seashells on mountaintops” have generated controversy for centuries.
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An early explanation was that a global flood covered these mountains, allowing clams and other sea life to “crawl” far and high.
http://www.creationscience.com/onlinebook/EarthSciences16.html
Evidence 1: Fossils of sea creatures high above sea level due to the ocean waters having flooded over the continents
We find fossils of sea creatures in rock layers that cover all the continents. For example, most of the rock layers in the walls of Grand Canyon (more than a mile above sea level) contain marine fossils. Fossilized shellfish are even found in the Himalayas.
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High & Dry Sea Creatures
Evidence 2: Rapid burial of plants and animals
We find extensive fossil “graveyards” and exquisitely preserved fossils. For example, billions of nautiloid fossils are found in a layer within the Redwall Limestone of Grand Canyon. This layer was deposited catastrophically by a massive flow of sediment (mostly lime sand). The chalk and coal beds of Europe and the United States, and the fish, ichthyosaurs, insects, and other fossils all around the world, testify of catastrophic destruction and burial.
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The World’s a Graveyard
Evidence 3: Rapidly deposited sediment layers spread across vast areas
We find rock layers that can be traced all the way across continents—even between continents—and physical features in those strata indicate they were deposited rapidly. For example, the Tapeats Sandstone and Redwall Limestone of Grand Canyon can be traced across the entire United States, up into Canada, and even across the Atlantic Ocean to England. The chalk beds of England (the white cliffs of Dover) can be traced across Europe into the Middle East and are also found in the Midwest of the United States and in Western Australia. Inclined (sloping) layers within the Coconino Sandstone of Grand Canyon are testimony to 10,000 cubic miles of sand being deposited by huge water currents within days.
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Transcontinental Rock Layers
Evidence 4: Sediment transported long distances
We find that the sediments in those widespread, rapidly deposited rock layers had to be eroded from distant sources and carried long distances by fast-moving water. For example, the sand for the Coconino Sandstone of Grand Canyon (Arizona) had to be eroded and transported from the northern portion o74f what is now the United States and Canada. Furthermore, water current indicators (such as ripple marks) preserved in rock layers show that for “300 million years” water currents were consistently flowing from northeast to southwest across all of North and South America, which, of course, is only possible over weeks during a global Flood.
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Sand Transported Cross Country
Evidence 5: Rapid or no erosion between strata
We find evidence of rapid erosion, or even of no erosion, between rock layers. Flat, knife-edge boundaries between rock layers indicate continuous deposition of one layer after another, with no time for erosion. For example, there is no evidence of any “missing” millions of years (of erosion) in the flat boundary between two well-known layers of Grand Canyon—the Coconino Sandstone and the Hermit Formation. Another impressive example of flat boundaries at Grand Canyon is the Redwall Limestone and the strata beneath it.