World Class Source Rock
Certain source rocks are referred to as 'world class', meaning that they are not only of very high quality but are also thick and of wide geographical distribution. Examples include:
- Middle Devonian to lower Mississippian widespread marine anoxic oil and gas source beds in the Mid-Continent and Appalachia : (e.g. the Bakken Formation of the Williston Basin, the Antrim Shale of the Michigan Basin, the Marcellus Shale of the Appalachian Basin ).
- Kimmeridge Clay – This upper Jurassic marine mudstone or its stratigraphic equivalents generated most of the oil found in the North Sea and the Norwegian Sea.
- La Luna Shale – This Turonian formation generated most of the oil in Venezuela.
- Late Carboniferous coals – Coals of this age generated most of the gas in the southern North Sea, the Netherlands Basin and the northwest German Basin.
- Hanifa Formation – This upper Jurassic laminated carbonate-rich unit has sourced the oil in the giant Ghawar field in Saudi Arabia.
Read more about this topic: Source Rock
Famous quotes containing the words world, class, source and/or rock:
“Whatever practical people may say, this world is, after all, absolutely governed by ideas, and very often by the wildest and most hypothetical ideas. It is a matter of the very greatest importance that our theories of things that seem a long way apart from our daily lives, should be as far as possible true, and as far as possible removed from error.”
—Thomas Henry Huxley (1825–95)
“Sometimes I think that idlers seem to be a special class for whom nothing can be planned, plead as one will with them—their only contribution to the human family is to warm a seat at the common table.”
—F. Scott Fitzgerald (1896–1940)
“If I have been the source of pain, O God;
If to the weak I have refused my strength;
If, in rebellion, I have strayed away;
Forgive me, God.”
—Janet W. May (20th century)
“Amongst the learned the lawyers claim first place, the most self-satisfied class of people, as they roll their rock of Sisyphus and string together six hundred laws in the same breath, no matter whether relevant or not, piling up opinion on opinion and gloss on gloss to make their profession seem the most difficult of all. Anything which causes trouble has special merit in their eyes.”
—Desiderius Erasmus (c. 1466–1536)