fossils form in which kind of rock? course hero

by Greyson Baumbach Published 2 years ago Updated 1 year ago 5 min read

Why don't all limestones look like fossils?

They are mostly found in sedimentary rocks, however they may be retained in metamorphic or igneous rocks under specific conditions-volcanic tufts, for example, a rock produced by volcanic ash. Now, not every animal is destined to become a fossil; otherwise, the planet would be choked with them, which it clearly isn't.

Why don't all fossils form in sedimentary rocks?

A fossil is the preserved remnants or imprints of ancient creatures in whole or in part. They are mostly found in sedimentary rocks, however they may be retained in metamorphic or igneous rocks under specific conditions-volcanic tufts, for example, a rock produced by volcanic ash. Now, not every animal is destined to become a fossil; otherwise, the planet would be choked with …

Are there fossils that look like sediment grains?

Question 9 2 2 pts fossils are typically found in. Question 9 2 / 2 ptsFossils are typically found in what kind of rock? Igneous Metamorphic Sedimentary All kinds of rocks could contain fossils. Question 10 2 / 2 pts Original and unfossilized body tissue …

What type of fossils are found in the Green River Formation?

Sep 05, 2021 · Sedimentary rocks are ____. A. formed from magma B. a type of foliated igneous rockC. formed because of changes in temperature and pressure, or the presence of hot watery fluids D. formed when loose materials become pressed or cemented together or when minerals form from solutions 25. Enrichment: -Minerals are inorganic compounds.

What types of rocks have fossils?

Fossils are typically found in sedimentary rocks and occasionally some fine-grained, low-grade metamorphic rocks.

Which type of rock most likely contains fossils?

sedimentary rock

Almost all fossils are preserved in sedimentary rock. Organisms that live in topographically low places (such as lakes or ocean basins) have the best chance of being preserved. This is because they are already in locations where sediment is likely to bury them and shelter them from scavengers and decay.

Which type of fossil is considered a trace fossil?

Ichnofossils, also known as trace fossils, are geological records of the activities and behaviors of past life. Some examples include rock evidence of nests, burrows, footprints, and scat. These fossils are different from body fossils that preserve the actual remains of a body such as shells or bones.Aug 18, 2016

What is the process of fossils called?

The most common method of fossilization is called permineralization, or petrification. After an organism's soft tissues decay in sediment, the hard parts — particularly the bones — are left behind.Sep 21, 2015

How are fossils formed?

Fossils are formed in many different ways, but most are formed when a living organism (such as a plant or animal) dies and is quickly buried by sediment (such as mud, sand or volcanic ash).Nov 8, 2021

Which type of rock is most likely to contain fossils quizlet?

Sedimentary rock is most likely to contain fossils.

What type of fossil is an imprint in a rock?

An imprint or the natural cast of a footprint in rock is an example of a mold fossil and a trace fossil, while a mineral deposit in the shape of a shell is an example of a cast fossil and a body fossil. In rare cases, organisms, or parts of organisms, are entirely preserved.Jul 31, 2019

What are the fossils?

Fossils are the preserved remains, or traces of remains, of ancient organisms. Fossils are not the remains of the organism itself! They are rocks. A fossil can preserve an entire organism or just part of one.Feb 22, 2013

What are 4 types of trace fossils?

The four types of trace fossils are tracks and trails (footprints), burrows and bores (worm holes), gastroliths (stomach stones), and coprolites (fossilized feces).Sep 13, 2021

What's the study of fossils?

Paleontology is the study of the history of life on Earth as based on fossils. Fossils are the remains of plants, animals, fungi, bacteria, and single-celled living things that have been replaced by rock material or impressions of organisms preserved in rock.Apr 29, 2011

What is fossil stone?

Fossil stone is a material formed, changed, or altered by a process called fossilization. This process replaces organic materials in rock or stone with minerals that seep into the rock or other object eventually hardening.

Are fossils bones or rocks?

While the dinosaur's soft parts still eventually decomposed, its hard parts -- bones, teeth and claws -- remained. But a buried bone isn't the same thing as a fossil -- to become a fossil, the bone has to become rock.

Why are fossils more common in sedimentary rocks?

Fossils are more common in some kinds of sedimentary rocks than others. There are many factors that can contribute to the likelihood of an organism being preserved as a fossil. Fossils are most common in limestones. That is because most limestones consist partly or mostly of the shells of organisms. Sometimes, however, the shells are worn so much ...

What type of sediments can fossils be found in?

Excellent imprint fossils can be formed in fine-grained sediments like muds. Only some shales contain fossils, however, because many areas of muddy ocean floor had conditions that were not suitable for animal life.

What are limestone fossils made of?

That is because most limestones consist partly or mostly of the shells of organisms. Sometimes, however, the shells are worn so much that they look like sediment grains rather than "real" fossils. Fossils are also common in shales, which form from muds. Excellent imprint fossils can be formed in fine-grained sediments like muds.

Why is water seeping through sand so strong?

Water currents in the environment might have been too strong for animals to survive. Also, sands are very porous, so water seeping through the sand might have dissolved the shells away long before the sand was buried and changed into sandstone.

Do sandstones have fossils?

Although this does happen, it is a very rare occurrence. Some sandstones contain fossils as well. Most sandstones do not contain fossils, for various reasons.

What are the conditions for fossil formation?

The conditions for fossil formation is the organisms has to have hard parts and covered quickly by sediments. Fossils need sedimentary rock to form.

Which intrusion must be younger than any feature or layer of rock that it cuts through?

Igneous intrusion must be younger than any feature or layer of rock that it cuts through.

How are igneous rocks classified?

Igneous rocks are classified by where they are formed, extrusive or intrusive. They are also classified if they are basaltic or granitic.

What type of rock is sandstone?

Sandstone is a detrital sedimentary rock and forms when layers of sand become compacted and cemented.

What is a detrital rock?

Detrital rocks are made from loose sediments that are compacted and cemented together to form solid rock.

What are the minerals in basalt rocks?

Basaltic rocks contain iron and magnesium. It is denser and darker in color than granitic rocks. Iron and magnesium is a lighter color and denser than silica. Basaltic rocks form at shield volcanoes.

Which type of rock is less dense and lighter in color than basaltic rocks?

Granitic rocks contain silica. It is less dense and lighter in color than basaltic rocks. Silica is a lighter color and less dense than iron and magnesium. Granitic rocks form at composite volcanoes. (stratovolcanoes)

What event occurred at the end of the Paleozoic era?

The end of the Paleozoic era is marked by an event called a mass extinction. What is a mass extinction?

Where are fossils of Mesosaurus found?

Fossils of Mesosaurus are found in South America and Africa. What does this suggest?

Where did the Trilobite live?

a trilobite that lived in all areas east of the Mississippi River, in large populations during the end of the Paleozoic

Is the climate different from what it was back then?

The climate is not much different from what it was back then.