Stromatolite reef from the Early Archaean era of Australia

  title={Stromatolite reef from the Early Archaean era of Australia},
  author={Abigail C. Allwood and Malcolm R. Walter and Balz S. Kamber and Craig P. Marshall and Ian W. Burch},
The 3,430-million-year-old Strelley Pool Chert (SPC) (Pilbara Craton, Australia) is a sedimentary rock formation containing laminated structures of probable biological origin (stromatolites). Determining the biogenicity of such ancient fossils is the subject of ongoing debate. However, many obstacles to interpretation of the fossils are overcome in the SPC because of the broad extent, excellent preservation and morphological variety of its stromatolitic outcrops—which provide comprehensive… Expand
3.43 billion-year-old stromatolite reef from the Pilbara Craton of western Australia: Ecosystem-scale insights to early life on Earth
Abstract The 3.43 billion-year-old Strelley Pool Chert, Pilbara Craton, Western Australia, contains compelling evidence of Early Archaean life in the form of kilometre-sized remnants of an ancientExpand
Controls on development and diversity of Early Archean stromatolites
The persistence of an inferred biological signal through changing environmental circumstances and stromatolite types indicates that benthic microbial populations adapted to shifting environmental conditions in early oceans. Expand
Precambrian and early Cambrian palaeobiology of India: Quo Vadis
  • Mukund Sharma, Veeru Kant Singh, +5 authors Divya Singh
  • Geology
  • Proceedings of the Indian National Science Academy
  • 2021
Significance of Precambrian and early Cambrian palaeobiological remains recorded over the last few years on the Indian subcontinent are discussed in the present review. The importance of theseExpand
A Rare Glimpse of Paleoarchean Life: Geobiology of an Exceptionally Preserved Microbial Mat Facies from the 3.4 Ga Strelley Pool Formation, Western Australia
A new type of microbial mat facies is described from the 3.4 Ga Strelley Pool Formation, which directly overlies well known stromatolitic carbonates from the same formation and represents microbial mats formed in a shallow marine environment. Expand
Living Stromatolites of Shark Bay, Western Australia: Microbial Inhabitants
An abundance of stromatolites throughout the Earth’s geological records has been widely documented. The oldest examples of these preserved stromatolites are dated to more than three billion years ofExpand
Evolution of Precambrian life in the Brazilian geological record
Abstract Precambrian rocks comprise nearly one-quarter of the surface of Brazil and range from Paleoarchean (ca. 3.6 Ga) to the latest Ediacaran (0.542 Ga) in age. Except for controversialExpand
Palaeontology: Respect for stromatolites
Is it time to stop worrying over whether the ancient structures called stromatolites are of microbial origin? ‘Yes’ is the answer to emerge from field and lab work on a 3,430-million-year-old marineExpand
Palaeoproterozoic Stromatolites from the Lomagundi-Jatuli Interval of the Fennoscandian Shield
When and how life on Earth started is still an open question. Biochemical fingerprints stored in the ancient rock record indicate the presence of traces of life back to some of the oldest sedimentaryExpand
Stromatolites in the approximately 3400 Ma Strelley Pool Formation, Western Australia: examining biogenicity from the macro- to the nano-scale.
  • D. Wacey
  • Chemistry, Medicine
  • Astrobiology
  • 2010
A compelling claim for early life requires geochemical evidence for biological cycling, and a potential avenue of approach to obtain such evidence for the SPF stromatolites is discussed in the context of a pilot study in which nano-scale secondary ion mass spectrometry (NanoSIMS) was used. Expand
The palaeobiology and geochemistry of Precambrian hydrocarbon source rocks
Abstract Organic carbon productivity and formation of hydrocarbon source rocks during the Early Precambrian was almost exclusively the product of the growth of microbial mats. Indirect evidence ofExpand


Stromatolites in Precambrian carbonates: evolutionary mileposts or environmental dipsticks?
Application of a process-based approach has shown that stromatolites were originally formed largely through in situ precipitation of laminae during Archean and older Proterozoic times, but that younger ProTerozoic strom atolites grew largely through the accretion of carbonate sediments, most likely through the physical process of microbial trapping and binding. Expand
The problem of deep carbon—An Archean paradox
Black carbon-rich chert dikes are common features of early Archean terranes and are especially prominent on the Pilbara Craton of Western Australia. The dikes cut across the local stratigraphy beforeExpand
Abiological origin of described stromatolites older than 3.2 Ga.
  • D. Lowe
  • Geology, Medicine
  • Geology
  • 1994
Although bacterial communities were widespread on Earth prior to 3.2 Ga, these particular three-dimensional structures are probably abiotic in origin and do not provide information on the paleobiology or paleoecology of early organisms. Expand
Geological and trace element evidence for a marine sedimentary environment of deposition and biogenicity of 3.45 Ga stromatolitic carbonates in the Pilbara Craton, and support for a reducing Archaean ocean
Bedded carbonate rocks from the 3.45 Ga Warrawoona Group, Pilbara Craton, contain structures that have been regarded either as the oldest known stromatolites or as abiotic hydrothermal deposits. WeExpand
Origin of 3.45 Ga coniform stromatolites in Warrawoona Group, Western Australia
A new occurrence of conical and branched pseudocolumnar stromatolites in Archean dolostones in the Pilbara region, Australia, contributes significant new morphologic information on such structures.Expand
Geochemistry of metabasalts and hydrothermal alteration zones associated with c. 3.45 Ga chert and barite deposits: implications for the geological setting of the Warrawoona Group, Pilbara Craton, Australia
Relatively unaltered metabasalts of the Archaean Coonterunah and Warrawoona Groups, Pilbara Craton are compared with altered metabasalts from immediately beneath bedded cherts of these groups toExpand
Stromatolites 3,400-Myr old from the Archean of Western Australia
Internally laminated conical mounds characterise a regionally extensive chert unit near the top of the 3,400-Myr old Warrawoona Group in the Pilbara Block of Western Australia. The chert formed byExpand
Restricted shallow-water sedimentation of Early Archean stromatolitic and evaporitic strata of the Strelley Pool Chert, Pilbara Block, Western Australia
Abstract The 3.4 Ga-old Strelley Pool Chert is a 25-m thick sedimentary unit near the top of the predominantly volcanic Warrawoona Group in greenstone belts of the eastern Pilbara Block, WesternExpand
Carbonate Sedimentation and Diagenesis in the Evolving Precambrian World
Carbonate Sedimentation and Diagenesis in the Evolving Precambrian World - Precambrian carbonates are usually regarded at the simple cousins of the sedimentary realm, composed of stromatolites andExpand
Preservation of ∼3.4–3.5 Ga microbial biomarkers in pillow lavas and hyaloclastites from the Barberton Greenstone Belt, South Africa
Exceptionally well-preserved pillow lavas and inter-pillow hyaloclastites from the Barberton Greenstone Belt in South Africa contain textural, geochemical, and isotopic biomarkers indicative ofExpand