What are Fossils?

 FOSSILS.                                 (Arbaz khan)

The study of dead remains of the organism or their imprints preserved in the

geological rocks is called fossil.

Fossils are used to study organisms present in the past.

Fossil is derived from a Latin word fotlere meaning “to dig”. In fact fossils are

impressions or cast of the organelles (organism) living sometime back but now

extinct, on. They are present in rocks.

 Normally the plant dies and it degeneration starts immediately. This degeneration

remains continue till the entire body is broken into chemical compounds. Thus no

evidences of its former remain in existence. But sometimes under certain circumstances

the degeneration of plant body stops. Thus parts of the body remain in visible form.

These remains are known as fossils. These fossils are lifeless.

Plant fossils are normally present in rocks composed of sediments deposited in

waters. These stratified rocks are super imposed upon one another in series. These rocks

are built of sediments. These accumulate in bottoms of seas, lakes, swamps, flooded

valleys, subsiding beaches etc. The rock formation is correlated with the geological

approach in the subject paleobotany. In fact fossil are the makers of geologic time. The

study of a botany as well as geology is essential for the study of fossil plants

Comments

Post a Comment

Popular posts from this blog

Types of fossils

 Types of Fossils plants 1. Petrifactions or Mineralized plants: In this type of plants fossil the original cell of the plant tissue is retained by means of some minerals like, silica etc. These mineral has infiltrated the tissues. In this type of fossil sometimes the material of original plant may be preserved e.g. coal balls, Silicified wood etc. 2. Cast on incrustations: In this type of plant fossil, the form of plant if preserved as a cast. The cast result from the liking of a cavity formed by decay of tissues of plant part. Here the internal, structures are destroyed and carbonaceous substances of the plant are totally gone e.g. stem leaf scers, larger seeds etc. 3. Compressions: In this type of plant fossil, the external form of plant modifies and leaves impressions on the sediment which over lie on it. 4. Compaction or Mummified plants: In this type of plant fossil, the plants or their parts get compressed by vertical pressure against one another. Mostly plant rudiments foun...
Read more

Montreal protocol

  Montreal Protocol The  Montreal Protocol  is an international  treaty  designed to protect the  ozone layer  by phasing out the production of numerous substances that are responsible for  ozone depletion . It was agreed on 16 September 1987 under the Vienna Convention for the Protection of the Ozone Layer , and entered into force on 1 January 1989. Since then, it has undergone nine revisions, in 1990 ( London ), 1991 ( Nairobi ), 1992 ( Copenhagen ), 1993 ( Bangkok ), 1995 ( Vienna ), 1997 ( Montreal ), 1998 ( Australia ), 1999 ( Beijing ) and 2016 ( Kigali ) As a result of the international agreement, the ozone hole in Antarctica is slowly recovering. Climate projections indicate that the ozone layer will return to 1980 levels between 2050 and 2070. Due to its widespread adoption and implementation, it has been hailed as an example of successful international co-operation. The Vienna Convention on the Law of Treaties (VCLT) is a...
Read more

What are Solid waste?

 Solid waste is any solid or semi solid waste, it may be domestic, institutional, commercial, market waste, street waste, sewage waste, agricultural waste, plastic waste etc. Generated in any area is called solid waste Which cause ugly scenes in environment and foils the surrounding. Radioactive and hospital waste are also included in solid waste.  Solid waste causes soil , water and air by causing foul smell in air.
Read more