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Why do the lower levels of sedimentary rock on Earth show fossils of the simplest life forms?
The lower the level of a rock stratum, the older it is. Evolution is recorded in the sedimentary rock record, therefore, the simpler forms would show up in the oldest layers. The old life forms were usually very simple so the deeper down the sedimentary levels are, the older the fossils are their.
What else can I help you with?
What is the maximum depth at which fossils are found in the earth's crust?
They are mostly found on, or very near, the surface. They have probably been quite deeply buried at some point ( a lot can happen in, say, 70 million years) but due to tectonic movements and erosion, they finish up where we can find them. If all the Jurassic rocks were buried at about 300m, then our knowledge of dinosaurs would be impressively small.
Can scoria hold fossils?
Schists are formed when a sedimentary rock is deformed by great heat and pressure, deep within the Earth's crust. This deformation means that fossils do not survive in schists. Only less deformed rocks, such as slate and shale, can hold fossils.
Scientists who study ancient life on earth and fossils?
the study of the past life me is the key to the futrue
What information lead scientists that shallow seas covered much of the earth during the paleozoic era?
finding inland fossils of sea creatures in sedimentary rock. very far inland like idaho
What are some of the things about the past which you can learn from studying sedimentary rocks?
Sedimentary rocks are deposited in layers as strata, forming a structure called bedding. The study of sedimentary rocks and rock strata provides information about the subsurface that is useful to scientists to learn about ancient environment of area.
How can sedimentary rocks show earth history?
they have fossils and pieces of the environment from the past inside of them
Which which mars rock contains fossils sedimentary igneous or metamorphic sedementary igneous or metamorphic.?
There is currently no confirmed evidence of fossils on Mars. Sedimentary rocks are usually associated with the formation and preservation of fossils on Earth, so if fossils were to be found on Mars, they would likely be in sedimentary rocks.
Facts about sedimentary rocks?
95or all fossils found. Sedimentary rock makes up ¾ of the earth's surface.
Why do scientists look to sedimentary rocks when studying the history of the Earth?
The vast majority of fossils are found in sedimentary rock.
How can sedimentary rock earth history?
they have fossils and pieces of the environment from the past inside of them
What mineral can fossils be found in?
It depends what fossil you're talking about but normally fossils are found in sedimentary rocks. But diatomaceous earth, and limestones contain fossils, or are made of fossils.
By comparing fossils in higher sedimentary layers with fossils in lower sedimentary layers scientists can learn what?
By comparing fossils in higher sedimentary layers with fossils in lower sedimentary layers, scientists can learn about the relative ages of the fossils. This helps in understanding the sequence of events in Earth's history and the evolutionary relationships between different species.
Do the oldest rocks on earth contain fossils?
Maybe. It depends on what kind of rock it is. If its a sedimentary rock and it's pretty old, then it will probably have some fossils in it. If its igneous the chances are not very likely i'd say.
What do sedimentary rocks have more often than metamorphic or igneous rocks?
Sedimentary rocks often have visible layers or bedding, which are less common in metamorphic or igneous rocks. Sedimentary rocks also tend to contain fossils, as they are formed from the accumulation of sediments. Additionally, sedimentary rocks are more likely to be composed of minerals that are common in the Earth's crust.
Where are fossils mostly preserved?
Most fossils are found in sedimentary rock, which is the most common type of rock on Earth. Sedimentary rocks form when particles of sediment are deposited by water or wind, and then hardened over time.
Fossils that can be used to establish relative dates are most likely to be found in?
Sedimentary rocks, which form in layers over time, are most likely to contain fossils that can be used to establish relative dates. Fossils found in these rocks provide a record of the organisms that lived at specific times in Earth's history, allowing scientists to determine the relative age of the rock layers.
Are fossils in rocks?
Yes, fossils are commonly found in rocks. Fossils are the preserved remains or traces of ancient organisms that are typically found in sedimentary rocks, where the conditions were suitable for their preservation over long periods of time. By studying fossils in rocks, scientists can learn about Earth's history and the evolution of life on our planet.
