Dresser Formation information

Dresser Formation
Dresser Formation
Stratigraphic range: ; Paleoarchaen ; 3483–3479 Ma Pha. Proterozoic Archean Had. ↓
Type	Geological formation
Unit of	Warrawoona Group
Sub-units	two bedded chert horizons separated by pillow basalt
Underlies	Mount Ada Basalt
Overlies	North Star Basalt
Area	limited to Panorama greenstone belt surrounding North Pole Dome of Pilbara Craton
Lithology
Primary	bedded chert, volcaniclastic sandstone, felsic tuff, conglomerate, breccia, and jaspilitic chert
Other	basalt
Location
Coordinates	21°09′06″S 119°26′14″E / 21.151759°S 119.437252°E
Region	Western Australia
Country	Australia
Extent	25 km2 (9.7 sq mi)
Type section
Named for	Dresser Mine
Named by	M. J. Van Kranendonk
Location	Dresser Mine
Year defined	2000
Region	Western Australia
Country	Australia

The Dresser Formation is a Paleoarchean geologic formation that outcrops as a generally circular ring of hills the North Pole Dome area of the East Pilbara Terrane of the Pilbara Craton of Western Australia. This formation is one of many formations that comprise the Warrawoona Group, which is the lowermost of four groups that comprise the Pilbara Supergroup. The Dresser Formation is part of the Panorama greenstone belt that surrounds and outcrops around the intrusive North Pole Monzogranite. Dresser Formation consists of metamorphosed, blue, black, and white bedded chert; pillow basalt; carbonate rocks; minor felsic volcaniclastic sandstone and conglomerate; hydrothermal barite; evaporites; and stromatolites. The lowermost of three stratigraphic units that comprise the Dresser Formation contains some of the Earth's earliest commonly accepted evidence of life such as morphologically diverse stromatolites, microbially induced sedimentary structures, putative organic microfossils, and biologically fractionated carbon and sulfur isotopic data.^[1]^[2]^[3]^[4]

^ ^a ^b Van Kranendonk, M.J., Djokic, T., Poole, G., Tadbiri, S., Steller, L. and Baumgartner, R., 2019. Depositional setting of the fossiliferous, c. 3480 Ma Dresser Formation, Pilbara Craton: A review. In Van Kranendonk, M.J., Bennett, V.C., and Hoffmann, J.E., ed., pp. 985-100, Earth's Oldest Rocks, 2nd ed. Amsterdam, Netherlands, Elsevier. 1112 pp.
^ ^a ^b Noffke, N., Christian, D., Wacey, D. and Hazen, R.M., 2013. Microbially induced sedimentary structures recording an ancient ecosystem in the ca. 3.48 billion-year-old Dresser Formation, Pilbara, Western Australia. Astrobiology, 13(12), pp.1103-1124.
^ ^a ^b ^c Van Kranendonk, M. J., 2000. Geology of the North Shaw 1:100 000 sheet 275. East Perth, Western Australia, Geological Survey of Western Australia. scale 1:100,000, one sheet and explanatory notes.
^ Van Kranendonk, M.J., Philippot, P., Lepot, K., Bodorkos, S. and Pirajno, F., 2008. Geological setting of Earth's oldest fossils in the ca. 3.5 Ga Dresser formation, Pilbara Craton, Western Australia. Precambrian Research, 167(1-2), pp.93-124.

[VanKranendonkOther2019a-1] Van Kranendonk, M.J., Djokic, T., Poole, G., Tadbiri, S., Steller, L. and Baumgartner, R., 2019. Depositional setting of the fossiliferous, c. 3480 Ma Dresser Formation, Pilbara Craton: A review. In Van Kranendonk, M.J., Bennett, V.C., and Hoffmann, J.E., ed., pp. 985-100, Earth's Oldest Rocks, 2nd ed. Amsterdam, Netherlands, Elsevier. 1112 pp.

[NoffkeOther2013a-2] Noffke, N., Christian, D., Wacey, D. and Hazen, R.M., 2013. Microbially induced sedimentary structures recording an ancient ecosystem in the ca. 3.48 billion-year-old Dresser Formation, Pilbara, Western Australia. Astrobiology, 13(12), pp.1103-1124.

[VanKranendonk2000a-3] Van Kranendonk, M. J., 2000. Geology of the North Shaw 1:100 000 sheet 275. East Perth, Western Australia, Geological Survey of Western Australia. scale 1:100,000, one sheet and explanatory notes.

[VanKranendonkOther2008a-4] Van Kranendonk, M.J., Philippot, P., Lepot, K., Bodorkos, S. and Pirajno, F., 2008. Geological setting of Earth's oldest fossils in the ca. 3.5 Ga Dresser formation, Pilbara Craton, Western Australia. Precambrian Research, 167(1-2), pp.93-124.

Dresser Formation information

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Dresser Formation

Earliest known life forms

Paleoarchean

Pilbara Craton

Abiogenesis

Earth

Fossil

Life

Archaea

History of Earth

Cosmic Calendar

Biosphere

Archean

Last universal common ancestor

Timeline of the evolutionary history of life

Geomicrobiology

Common descent

Evolution

Nora Noffke

Timeline of natural history

Prebiotic atmosphere

Microbial mat

Biodiversity of South Africa

Isotopic signature

Isua Greenstone Belt

Microbially induced sedimentary structure

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Dresser Formation
Stratigraphic range: Paleoarchaen 3483–3479 Ma Pha. Proterozoic Archean Had. ↓ ^[1]
Type	Geological formation
Unit of	Warrawoona Group
Sub-units	two bedded chert horizons separated by pillow basalt
Underlies	Mount Ada Basalt
Overlies	North Star Basalt
Area	limited to Panorama greenstone belt surrounding North Pole Dome of Pilbara Craton
Lithology
Primary	bedded chert, volcaniclastic sandstone, felsic tuff, conglomerate, breccia, and jaspilitic chert
Other	basalt
Location
Coordinates	21°09′06″S 119°26′14″E / 21.151759°S 119.437252°E / -21.151759; 119.437252
Region	Western Australia
Country	Australia
Extent	25 km² (9.7 sq mi)^[2]
Type section
Named for	Dresser Mine
Named by	M. J. Van Kranendonk^[3]
Location	Dresser Mine
Year defined	2000^[3]
Region	Western Australia
Country	Australia