http://www.museumwales.ac.uk/mineralogy-of-wales/sedimentary-minerals/ Like other rock-types, sedimentary rocks are composed of a variety of minerals. There are two broad…
Photosynthesis and the Rise of Atmospheric Oxygen Assigned Reading •Stanley: pp. 257-269, 323-325 •Catling D. C., Zahnle K. J., and McKay C. P. (2001) Biogenic methane,…
Photosynthesis and the Rise of Atmospheric Oxygen Assigned Reading •Stanley: pp. 257-269, 323-325 •Catling D. C., Zahnle K. J., and McKay C. P. (2001) Biogenic methane,…