Theories On Origin
The origin of carbonado is controversial. Some proposed hypotheses are as follows:
- Direct conversion of organic carbon under high-pressure conditions in the Earth's interior, the most common hypothesis for diamond formation
- Shock metamorphism induced by meteoritic impact at the Earth's surface
- Radiation-induced diamond formation by spontaneous fission of uranium and thorium
- Formation inside an earlier-generation giant star in our area, that would have long ago exploded in a supernova.
- An origin in interstellar space, due to the impact of an asteroid, rather than being thrown from within an exploding star.
None of these hypotheses for carbonado formation had come into wide acceptance in the scientific literature by 2008.
Read more about this topic: Carbonado
Famous quotes containing the words theories and/or origin:
“The real trouble about women is that they must always go on trying to adapt themselves to mens theories of women, as they always have done. When a woman is thoroughly herself, she is being what her type of man wants her to be. When a woman is hysterical its because she doesnt quite know what to be, which pattern to follow, which mans picture of woman to live up to.”
—D.H. (David Herbert)
“The essence of morality is a questioning about morality; and the decisive move of human life is to use ceaselessly all light to look for the origin of the opposition between good and evil.”
—Georges Bataille (18971962)