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Sedimentary rocks cannot be given an absolute date by radiometric testing, but they can be given an estimated date from a few geological laws, for example if a bed of desert sandstone ins under a bed of limestone there is a law that says that the sandstone is older.

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Most sedimentary rocks are readily dated by radiometric methods True False?

False. Most sedimentary rocks cannot be directly dated by radiometric methods because they are composed of sediments that were already eroded and transported from existing rocks. Instead, geologists use relative dating techniques to determine the sequence of events in which sedimentary rocks were formed.


Rocks formed from weathered debris from preexisisting rocks are called?

They are called clastic sedimentary rocks.


What is the name for Rocks formed when sediments are compacted and cemented together?

They are called sedimentary rocks. Sedimentary rock can't be dated using radioactive dating because it is composed of sediment, which is actually small pieces of different rocks. To date it, you have to use radioactive dating on the surrounding rocks.


What has the author Sam Boggs written?

Sam Boggs has written: 'Petrology of sedimentary rocks' -- subject(s): Sedimentary Rocks 'Petrology of sedimentary rocks' -- subject(s): Rocks, Sedimentary, Sedimentary Rocks


Are sedimentary rocks formed from fragments of other rocks chemical sedimentary rocks?

No, sedimentary rocks formed from fragments of other rocks are called clastic sedimentary rocks. Chemical sedimentary rocks form from minerals that are dissolved in water and precipitate out to form rocks like limestone or halite.


Are there any fossils in sedimentary rocks?

Yes all fossils occur in sedimentary rocks or rocks that began as sedimentary rocks.


What are three types of rocks?

igneous, sedimentary, metamorphic


What type of rocks can contain fossils on them?

Sedimentary rocks. and metamorphic rocks made form sedimentary rocks.


Are sedimentary rocks classified tofoliated sedimentary rocks?

No, sedimentary rocks are not classified as foliated. Foliation is a textural feature found in certain types of metamorphic rocks where minerals are aligned in layers or bands due to pressure and heat. Sedimentary rocks are formed by the accumulation and cementation of sediments and do not exhibit foliation.


How are clastic sedimentary rocks different from organic sedimentary rocks?

they form


What class of sedimentary rocks is made of fragments of rocks mineral and shells?

== == Clastic sedimentary rocks.


Can metamorphic rocks can form from igneous but not from sedimentary rocks?

Metamorphic rocks can form from both igneous and sedimentary rocks