Quantcast

Latest Hiroshi Ohmoto Stories

2009-04-17 11:14:53

Sedimentary rocks created more than 2.4 billion years ago sometimes have an unusual sulfur isotope composition thought to be caused by the action of ultra violet light on volcanically produced sulfur dioxide in an oxygen poor atmosphere.

7f0ed969a2d0fea5f841a109b2c8288b1
2009-03-25 08:14:02

Red jasper cored from layers 3.46 billion years old suggests that not only did the oceans contain abundant oxygen then, but that the atmosphere was as oxygen rich as it is today, according to geologists.

2006-08-23 18:25:00

LONDON (Reuters) - Scientists may have to rethink accepted theories of how the prehistoric earth's atmosphere developed after new discoveries in ancient sulphur raised serious questions, researchers said on Wednesday.

2006-08-23 18:25:00

Scientists may have to rethink accepted theories of how the prehistoric earth's atmosphere developed after new discoveries in ancient sulphur raised serious questions, researchers said on Wednesday.


Word of the Day
whirret
  • To give a box on the ear to.
The word 'whirret' may be onomatopoeic.