In this article we will discuss about the quaternary pollen records in different places of India. It was Huntington (1906) who initiated the pollen analysis in India from the sediments of Pangong Lake in Ladakh. Later, Wodehouse (1935), De Terra & Paterson (1939) worked out palynologically Indian Quaternary sediments. The investigations on pollen analysis to establish the Quaternary vegetation history, [...]
The following points highlight the four main methods of air sampling. The methods are: 1. Gravity Sedimentation Methods 2. Inertial Methods 3. Filtration 4. Precipitation. 1. Gravity Sedimentation Methods: a. Sedimentation from still air: Alvarez and Castro (1952) constructed a simple box for the study of airborne fungi, has two hinged slides and a covered tray at the bottom for [...]
One of the most frequent questions a Palaeobotanist or Palaeontologist hears concerns the method for dating sediments containing fossil plants and animals. Present knowledge is based on a long series of efforts to date the ages of various rocks. At the present time, the best absolute dating involves the use of naturally occurring radioactive isotopes contained in various minerals that [...]