65 to 1.8 million years ago. Therefore rocks from the tertiary era were formed between 65 million to 1.8 million years ago. The tertiary period is divided into five epochs: Paleocene, Eocene, Oligocene, Miocene, and Pliocene. Thus for instance the Miocene belongs to the middle tertiary era. See also geological timescale
One trillion watthours
One trillion watts
STP is commonly used to define standard conditions for temperature and pressure such as for gases which is defined by as air at 0oC (273.15 K, 32oF) and 1 atm
The calorific value of a fuel is the quantity of heat produced by its combustion – at constant pressure and under a conditions known as “normal” temperature and pressure (i.e. 0oC and under a pressure of 1,013 mbar). The combustion of a fuel product generates water vapor. The Lower Calorific Value supposes that the products of combustion contains the water vapor. The heat contained in the water vapor is not recovered. The Higher Calorific Value (or Gross Calorific Value – GCV) supposes that the water of combustion is entirely condensed and that the heat contained in the water vapor is recovered.
440 to 410 million years ago
1.8 million years ago to today
Million billion. 1,000,000,000,000,000 British Thermal Units (BTU) >
