The document provides an overview of paleo continental margins and paleo environments. It discusses typical elements of continental margins like continental shelves, slopes, and rises. It describes features like abyssal plains, trenches, and seamounts. The document notes that continents were not static and discusses past configurations of continents like South America and Africa. It also outlines different depositional environments on continental scales like fluvial, aeolian, and deltaic. Maps show the past positions of the Indian plate hundreds of millions of years ago and how the climate would have been different.
1. Paleo Continental Margins
Basic Familiarization
I expect that the lecture will be helpful for students to
start thinking about the global source-reservoir
architecture and paleo-environments.
By,
Farrukh Qayyum
Geoscientist
Disclaimer Note: All contents in this presentation are copyrighted materials that is being
shared only for teaching purpose.
8. Sea Mounts
Oceanic Giants
Submerged Volcanic Eruption
Under deep ocean
Mostly they don’t form island
because they never appear close
to the sunlight or water surface.
Ocean floor
Water
Mantle
volcano
12. Through out the history of Earth, the continental margins are
being modified because of COLLISION
which means that I am talking about the motion of objects
i.e. continents are moving…
13. The land masses that we see today, they
were not the same in the ancient times (in
million years).
Often new continents are evolved and often
old continents are either completely or
partially vanished from the earth’s upper
surface.
….
27. This tells me that India should have
Temperate – Moderate Warm Climate at
that time. But it is 650Ma ago. The Pre-
Cambrian Temperature history wasn’t
that I see today.
