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Limestone is a type of sedimentary rock comprised of minerals calcite and aragonite. Limestone deposits are evidence of ancient seas with some limestone being dated as far back as 470 million years ago on the area where North America now stands.
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Are limestone deposits are often evidence of ancient tropical seas?
Many geologists believe that limestone deposits on land exist where ancient seas used to be. The moisture, over many centuries, created limestone.
Are limestone deposits are evidence of ancient tropical seas?
Many geologists believe that limestone deposits on land exist where ancient seas used to be. The moisture, over many centuries, created limestone.
Do we get limestone from volcano?
No, we don't. Limestone is a sedimentary rock laid down in ancient seas. It is formed from the skeletal remains of countless marine creatures.
Where can you find chert?
Chert can be found in sedimentary rock formations such as limestone and dolomite, as well as in areas where volcanic activity has occurred. It is commonly found in regions with ancient seas or lakes where silica-rich organisms lived and accumulated. Chert is also sometimes found in gravel deposits and within flint nodules.
What can limestone deposits tell scientists about the environment in which they evolved?
Limestone deposits can indicate the past presence of shallow tropical seas or marine environments. Fossils found within limestone can provide insights into the organisms that lived in these environments and help reconstruct the paleoclimate of the area. Additionally, the composition and structure of limestone can reveal information about the sedimentary processes and tectonic history of the region.
Is it true deposits were formed when ancient seas evaporated?
Yes, in some areas in the past there were shallow seas in hot, desert environments which periodically flooded and evaporated, leaving deposits of various salts such as halite and anhydrite which were then buried by other sediments. Some of these deposits are now mined for the various salts.
Where did you probably find a deposit of limestone what type of setting did it form in?
Limestone is formed on the floor of ancient seas from the skeletal remains of marine organisms such as coral, forams and molluscs, etc.
Why is most limestone formed in shallow warm seas?
Limestone is mostly made up of fossilized coral piled and compressed by the weight of the ocean over millions of years. Coral require sunlight for photosynthesis so cannont grow in deep water. Also, coral does better in warm regions. Limestone is found where coral is successful. Warm, shallow water.
Which part of the Midwest has rich fossil beds?
The Midwest region of the United States, particularly in states like Iowa, Illinois, and Kansas, is known for having rich fossil beds. These areas were once covered by ancient seas, which preserved a wide variety of marine fossils that can be found in limestone deposits and shale formations.
How does one obtain salt deposits in a very hot part of the world?
Salt deposits can form in very hot parts of the world through the evaporation of saltwater from ancient seas or lakes. As water evaporates, it leaves behind concentrated salt deposits that can accumulate over time. These deposits can be buried by sediments and eventually form salt beds or domes.
Which process led to the formation of thick salt deposits found in the bedrock at some locations in New yORK sTATE?
The thick salt deposits found in the bedrock in some locations in New York State were formed through the process of evaporation of ancient seas that once covered the region. Over millions of years, as these seas evaporated, the salt minerals precipitated out and accumulated to form the thick salt deposits that we see today.
Why did limestone deposits become common 1.8 billion years ago?
Limestone is made of calcium carbonate. Around 1.8 billion years ago the sea started to oxidize because cyanobacteria produced carbon dioxide. Calcium ions could be easily found because protists used them. Thus calcium carbonate was easy to make after the seas were oxidized
