Geoscience Reference
In-Depth Information
Lanier, W. P. 1989. Interstitial and
peloidal microfossils from the 2.0 Ga
Gunflint Formation: implications for
the paleoecology of the Gunflint
stromatolites.
Precambrian Research
45
, 291-318.
Leith, C. K., Lund, R. J. and Leith, A.
1935. Pre-Cambrian rocks of the Lake
Superior region, a review of newly
discovered geologic features, with a
revised geological map.
United States
Geological Survey, Professional Paper
184
.
Schopf, J. W. 1993. Microfossils of the
early Archean Apex Chert: new
evidence of the antiquity of life.
Science
260
, 640-646.
Schopf, J. W. and Packer, B. M. 1987.
Early Archean (3.3 billion to 3.5
billion-year-old) microfossils from
Warrawoona Group, Australia.
Science
237
, 70-73.
Selden, P. and Nudds, J. 2004.
Evolution
of Fossil Ecosystems
. Manson, London.
Siegel, S. M. and Giumarro, C. 1966. On
the culture of a microorganism similar
to the Precambrian microfossil
Kakabekia umbellata
Barghoorn in
NH-rich atmospheres.
Proceedings of
the National Academy of Sciences of
the United States of America
55
,
349-353.
Sommers, M. G., Awramik, S. M. and
Woo, K. S. 2000. Evidence for initial
calcite-aragonite composition of
Lower Algal Chert Member ooids and
stromatolites, Paleoproterozoic
Gunflint Formation, Ontario, Canada.
Canadian Journal of Earth Science
37
,
1229-1243.
Tyler, S. A. and Barghoorn, E. S. 1954.
Occurrence of structurally preserved
plants in Precambrian rocks of the
Canadian shield.
Science
119
,
606-608.
Van Hise, C. R. and Clements, J. M. 1901.
The iron-ore deposits of the Lake
Superior region. 305-434 In:
United
States Geological Survey, Annual
Report, Washington, D.C
. C. R. Van
Hise and C. K. Leith (eds.).
Search WWH ::
Custom Search