I have read that dinosaur bones/skeletons have been covered by many meters of dirt/debris over the millions?

Question

of years since their existence. Where did this layer of dirt come from? Has the earth picked up that much additional mass since the dinosaurs?

Answer 1

Rotting vegetation breaks down as soil. Wind moves dirt around, and animals **** on top of the land which then breaks down as dirt.

Answer 2

No more mass has been added.

As stuff is buried, or is moved along (the continents move very slowly over time, too slow for you to see, but over millions of years they can change the world map completely), it will eventually reach a "plate boundry", where a thing called subduction occurs- one plate goes uner another, and as it does so, it melts and pressure forces it out as a volcano. This is where the next layer of ground comes from.

Erosion will wear away at the coastline of this new land, which will eventually destory it unless volcanoes keep putting more on.

Answer 3

Well, most of the fossils we find under meters of rock were covered by sediments left by water runoff, erosion, and rivers. The sediments of alluvial plains are extensive and deep. Many of these areas were above sea level when the animals lived, dropped below sea level, got buried under sediment and then rose again. This up and down business is quite common. Fossilized seashells have been found in the rocks at the top of the Andes because these mountains were pushed up from the sea floor by the collision of the South American and Pacific plates.

Answer 4

Mork's answer is right, also whole land masses have moved over millions of years.

Theoretically, appart fromlanding meteors and asteroids, I don't think Earths total mass can change.

Answer 5

Have you noticed how trees drop their leaves at this time of the year?

Answer 6

Funerals used to be much grander affairs.

Man today is has echoed to become so very petty.
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