Sources
- Maarten J de Wit and Lewis D Ashwal (1997) Greenstone Belts, Clarendon Press ISBN 0-19-854056-6 Excerpts and maps
- Lowe DR (December 1994). "Accretionary history of the Archean Barberton Greenstone Belt (3.55–3.22 Ga), southern Africa". Geology 22 (12): 1099–102. Bibcode 1994Geo....22.1099L. doi:10.1130/0091-7613(1994)022<1099:AHOTAB>2.3.CO;2. PMID 11539408.
Read more about this topic: Greenstone Belt
Famous quotes containing the word sources:
“On board ship there are many sources of joy of which the land knows nothing. You may flirt and dance at sixty; and if you are awkward in the turn of a valse, you may put it down to the motion of the ship. You need wear no gloves, and may drink your soda-and-brandy without being ashamed of it.”
—Anthony Trollope (1815–1882)
“Even healthy families need outside sources of moral guidance to keep those tensions from imploding—and this means, among other things, a public philosophy of gender equality and concern for child welfare. When instead the larger culture aggrandizes wife beaters, degrades women or nods approvingly at child slappers, the family gets a little more dangerous for everyone, and so, inevitably, does the larger world.”
—Barbara Ehrenreich (20th century)
“I count him a great man who inhabits a higher sphere of thought, into which other men rise with labor and difficulty; he has but to open his eyes to see things in a true light, and in large relations; whilst they must make painful corrections, and keep a vigilant eye on many sources of error.”
—Ralph Waldo Emerson (1803–1882)