The beginning of the amazing events at Krakatoa in 1883 date to May 20 when there were initial rumblings and venting from the volcano, which had been dormant for about 200 years.
A refinery margin is the revenue associated with refining petroleum, expressed as a value per volume (e.g. $/L), net of the cost of the crude oil input. The simplest refining
Definition of margin trading. Also called buying on margin. A method of buying shares that involves borrowing a part of the sum needed from the broker executing the transaction. The collateral for the loan is normally securities in the investor's account.