Object Details
- Creator
- Lankester, E. Ray
- Book Title
- Extinct animals.
- Caption
- Table of stratified rocks.
- Educational Notes
- You dont always have to dig deep to find out about the past because stratified rocks can be seen all around the world! As the climate changes over time, so does Earths geography. This means that millions, thousands, and even hundreds of years ago, the Earth looked different than it does today. Stratification is one way to see these changes. Strata are layered deposits of sediment that can form when lava from an erupted volcano hardens to become rock or when different types of sediment carried on the wind or water form a new, rock layer. Sediments are deposited in different amounts, so these layers range in thickness from thin strata that are only a few millimeters thick to massive layers that are meters thick. Geologists can learn many things from strata like the past climate in the area, and archaeologists can use strata to help date fossils or artifacts that are found in the rock. This image shows the thickness of rock from each era and the typical lifeforms you might find if you were studying rock from that time period. Without x-ray vision though, you may have to get out your excavation toolkit to chip away the rock to find fossils, unless youre lucky and come across one poking out of the rocks side!
- 1905
- Publication Date
- 1905
- Image ID
- SIL-39088007358856_extinctanimals00lank_0094
- Catalog ID
- 441383
- Rights
- No Copyright - United States
- Type
- Prints
- Publication Place
- London
- Publisher
- A. Constable & co., ltd.
- See more items in
- See Wonder
- Smithsonian Libraries
- Topic
- Earth Science
- Science
- Geology
- Geography
- Rock
- Stratification
- Stratified rock
- Sedimentary rock
- Climate
- Fossil
- History
- Sediment
- Volcano
- Archaeology
- Language
- English
- Record ID
- silgoi_104047
