Fralick, P., David, D. W. and Kissin, Stephen A. (2002). "The age of the Gunflint Formation, Ontario, Canada: single zircon U–Pb age determinations". Canadian Journal of Earth Sciences. 39 (7): 1085–1091. doi:10.1139/E02-028.{{cite journal}}: CS1 maint: multiple names: authors list (link)
Cloud, P. E. (1965-04-02). "Significance of the Gunflint (Precambrian) Microflora: Photosynthetic oxygen may have had important local effects before becoming a major atmospheric gas". Science. 148 (3666): 27–35. doi:10.1126/science.148.3666.27. ISSN0036-8075. PMID17773767. S2CID37713079.
Goodwin, Alan Murray (1956-09-01). "Facies relations in the Gunflint iron formation [Ontario]". Economic Geology. 51 (6): 565–595. doi:10.2113/gsecongeo.51.6.565. ISSN1554-0774.
Planavsky, Noah; Rouxel, Olivier; Bekker, Andrey; Shapiro, Russell; Fralick, Phil; Knudsen, Andrew (August 2009). "Iron-oxidizing microbial ecosystems thrived in late Paleoproterozoic redox-stratified oceans". Earth and Planetary Science Letters. 286 (1–2): 230–242. Bibcode:2009E&PSL.286..230P. doi:10.1016/j.epsl.2009.06.033. ISSN0012-821X.
Hurley, P. M.; Fairbairn, H. W.; Pinson, W. H.; Hower, J. (July 1962). "Unmetamorphosed Minerals in the Gunflint Formation Used to Test the Age of the Animikie". The Journal of Geology. 70 (4): 489–492. Bibcode:1962JG.....70..489H. doi:10.1086/626839. ISSN0022-1376. S2CID140697996.
Hemming, S. R.; McLennan, S. M.; Hanson, G. N. (March 1995). "Geochemical and Nd/Pb Isotopic Evidence for the Provenance of the Early Proterozoic Virginia Formation, Minnesota. Implications for the Tectonic Setting of the Animikie Basin". The Journal of Geology. 103 (2): 147–168. Bibcode:1995JG....103..147H. doi:10.1086/629733. ISSN0022-1376. S2CID129538570.
Kaźmierczak, J. (June 1979). "The eukaryotic nature of Eosphaera-like ferriferous structures from the Precambrian Gunflint Iron Formation, Canada: A comparative study". Precambrian Research. 9 (1–2): 1–22. Bibcode:1979PreR....9....1K. doi:10.1016/0301-9268(79)90048-2. ISSN0301-9268.
Palmer, Douglas (2008-06-24). "J. R. Nudds & P. A. Selden 2008. Fossil Ecosystems of North America. A Guide to the Sites and Their Extraordinary Biotas. 288 pp. London: Manson Publishing (published in the USA by University of Chicago Press). £24.95 (paperback). ISBN 9781 84076 088 0". Geological Magazine. 145 (4): 598–599. Bibcode:2008GeoM..145..598P. doi:10.1017/s0016756808004718. ISSN0016-7568.
Planavsky, Noah; Rouxel, Olivier; Bekker, Andrey; Shapiro, Russell; Fralick, Phil; Knudsen, Andrew (August 2009). "Iron-oxidizing microbial ecosystems thrived in late Paleoproterozoic redox-stratified oceans". Earth and Planetary Science Letters. 286 (1–2): 230–242. Bibcode:2009E&PSL.286..230P. doi:10.1016/j.epsl.2009.06.033. ISSN0012-821X.
Hurley, P. M.; Fairbairn, H. W.; Pinson, W. H.; Hower, J. (July 1962). "Unmetamorphosed Minerals in the Gunflint Formation Used to Test the Age of the Animikie". The Journal of Geology. 70 (4): 489–492. Bibcode:1962JG.....70..489H. doi:10.1086/626839. ISSN0022-1376. S2CID140697996.
Hemming, S. R.; McLennan, S. M.; Hanson, G. N. (March 1995). "Geochemical and Nd/Pb Isotopic Evidence for the Provenance of the Early Proterozoic Virginia Formation, Minnesota. Implications for the Tectonic Setting of the Animikie Basin". The Journal of Geology. 103 (2): 147–168. Bibcode:1995JG....103..147H. doi:10.1086/629733. ISSN0022-1376. S2CID129538570.
Kaźmierczak, J. (June 1979). "The eukaryotic nature of Eosphaera-like ferriferous structures from the Precambrian Gunflint Iron Formation, Canada: A comparative study". Precambrian Research. 9 (1–2): 1–22. Bibcode:1979PreR....9....1K. doi:10.1016/0301-9268(79)90048-2. ISSN0301-9268.
Palmer, Douglas (2008-06-24). "J. R. Nudds & P. A. Selden 2008. Fossil Ecosystems of North America. A Guide to the Sites and Their Extraordinary Biotas. 288 pp. London: Manson Publishing (published in the USA by University of Chicago Press). £24.95 (paperback). ISBN 9781 84076 088 0". Geological Magazine. 145 (4): 598–599. Bibcode:2008GeoM..145..598P. doi:10.1017/s0016756808004718. ISSN0016-7568.
nih.gov
pubmed.ncbi.nlm.nih.gov
Cloud, P. E. (1965-04-02). "Significance of the Gunflint (Precambrian) Microflora: Photosynthetic oxygen may have had important local effects before becoming a major atmospheric gas". Science. 148 (3666): 27–35. doi:10.1126/science.148.3666.27. ISSN0036-8075. PMID17773767. S2CID37713079.
Cloud, P. E. (1965-04-02). "Significance of the Gunflint (Precambrian) Microflora: Photosynthetic oxygen may have had important local effects before becoming a major atmospheric gas". Science. 148 (3666): 27–35. doi:10.1126/science.148.3666.27. ISSN0036-8075. PMID17773767. S2CID37713079.
Hurley, P. M.; Fairbairn, H. W.; Pinson, W. H.; Hower, J. (July 1962). "Unmetamorphosed Minerals in the Gunflint Formation Used to Test the Age of the Animikie". The Journal of Geology. 70 (4): 489–492. Bibcode:1962JG.....70..489H. doi:10.1086/626839. ISSN0022-1376. S2CID140697996.
Hemming, S. R.; McLennan, S. M.; Hanson, G. N. (March 1995). "Geochemical and Nd/Pb Isotopic Evidence for the Provenance of the Early Proterozoic Virginia Formation, Minnesota. Implications for the Tectonic Setting of the Animikie Basin". The Journal of Geology. 103 (2): 147–168. Bibcode:1995JG....103..147H. doi:10.1086/629733. ISSN0022-1376. S2CID129538570.
Cloud, P. E. (1965-04-02). "Significance of the Gunflint (Precambrian) Microflora: Photosynthetic oxygen may have had important local effects before becoming a major atmospheric gas". Science. 148 (3666): 27–35. doi:10.1126/science.148.3666.27. ISSN0036-8075. PMID17773767. S2CID37713079.
Goodwin, Alan Murray (1956-09-01). "Facies relations in the Gunflint iron formation [Ontario]". Economic Geology. 51 (6): 565–595. doi:10.2113/gsecongeo.51.6.565. ISSN1554-0774.
Planavsky, Noah; Rouxel, Olivier; Bekker, Andrey; Shapiro, Russell; Fralick, Phil; Knudsen, Andrew (August 2009). "Iron-oxidizing microbial ecosystems thrived in late Paleoproterozoic redox-stratified oceans". Earth and Planetary Science Letters. 286 (1–2): 230–242. Bibcode:2009E&PSL.286..230P. doi:10.1016/j.epsl.2009.06.033. ISSN0012-821X.
Hurley, P. M.; Fairbairn, H. W.; Pinson, W. H.; Hower, J. (July 1962). "Unmetamorphosed Minerals in the Gunflint Formation Used to Test the Age of the Animikie". The Journal of Geology. 70 (4): 489–492. Bibcode:1962JG.....70..489H. doi:10.1086/626839. ISSN0022-1376. S2CID140697996.
Hemming, S. R.; McLennan, S. M.; Hanson, G. N. (March 1995). "Geochemical and Nd/Pb Isotopic Evidence for the Provenance of the Early Proterozoic Virginia Formation, Minnesota. Implications for the Tectonic Setting of the Animikie Basin". The Journal of Geology. 103 (2): 147–168. Bibcode:1995JG....103..147H. doi:10.1086/629733. ISSN0022-1376. S2CID129538570.
Kaźmierczak, J. (June 1979). "The eukaryotic nature of Eosphaera-like ferriferous structures from the Precambrian Gunflint Iron Formation, Canada: A comparative study". Precambrian Research. 9 (1–2): 1–22. Bibcode:1979PreR....9....1K. doi:10.1016/0301-9268(79)90048-2. ISSN0301-9268.
Palmer, Douglas (2008-06-24). "J. R. Nudds & P. A. Selden 2008. Fossil Ecosystems of North America. A Guide to the Sites and Their Extraordinary Biotas. 288 pp. London: Manson Publishing (published in the USA by University of Chicago Press). £24.95 (paperback). ISBN 9781 84076 088 0". Geological Magazine. 145 (4): 598–599. Bibcode:2008GeoM..145..598P. doi:10.1017/s0016756808004718. ISSN0016-7568.