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Early Life on Earth

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When did life first appear on Earth and what form did it take? The answer to this intriguing and fundamentally important question ... Weiterlesen
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When did life first appear on Earth and what form did it take? The answer to this intriguing and fundamentally important question lies somewhere within the early Archean rock record. The young Earth was, however, a very different place to that we know today and numerous pitfalls await our interpretation of these most ancient rocks. The first half of this practical guide equips the reader with the background knowledge to successfully evaluate new potentially biological finds from the Archean rock record. Successive steps are covered, from locating promising samples in the field, through standard petrography and evaluation of antiquity and biogenicity criteria, to the latest state of the art geochemical techniques. The second half of the guide uniquely brings together all the materials that have been claimed to comprise the earliest fossil record into an easily accessible, fully illustrated format. This will be a handbook that every Archean geologist, palaeobiologist and astrobiologist will wish to have in their backpack or on their lab-bench.


David Wacey is a University Research Fellow at the University of Western Australia in Perth. He graduated with honours from Oxford University in 1998 and then undertook a D.Phil. investigating the geochemistry and microbiology of modern and ancient dolomite formation. It was during this time that he became interested in primitive microbes and how the earliest life on Earth may have arisen and evolved. On completion of his D. Phil he decided to concentrate his research on the earliest rocks found on Earth. After 12 years at Oxford he relocated to Western Australia where he now works on a number of problems relating to the recognition and understanding of the earliest signs of life of Earth. More information can be found here: http://cmca.uwa.edu.au/contact_directory

3700 Ma, Isua Supracrustal Belt and Akilia Island, S.W. Greenland 2. ~3490 Ma, Dresser Formation, East Pilbara, Western Australia Summary of claims for early life from this Formation3. ~3470 Ma, Mount Ada Basalt, East Pilbara, Western Australia 4. ~3460 Ma, Apex Basalt, East Pilbara, Western Australia 5. ~3450 Ma, Hoogenoeg Formation, Barberton, South Africa 6. ~3450 Ma, Panorama Formation, East Pilbara, Western Australia7. ~3400 Ma, Strelley Pool Formation, East Pilbara, Western AustraliaSummary of claims of early life from this Formation8. ~3416-3334 Ma, Kromberg Formation, Barberton, South Africa 9. ~3350 Ma, Euro Basalt, East Pilbara, Western Australia10. ~3250 Ma, Fig Tree Group, Barberton, South Africa 11. ~3240 Ma, Kangaroo Caves Fm., East Pilbara, Western Australia 12. ~3200 Ma, Moodies Group, Barberton, South Africa 13. ~3200 Ma, Dixon Island Formation, West Pilbara, Western Australia 14. ~3000 Ma, Cleaverville Formation, West Pilbara, Western Australia15. ~3000 Ma, Farrel Quartzite, East Pilbara, Western Australia 16. The Imposters. Younger biolog


Titel: Early Life on Earth
Untertitel: A Practical Guide
EAN: 9781402093890
ISBN: 978-1-4020-9389-0
Digitaler Kopierschutz: Adobe-DRM
Format: E-Book (pdf)
Hersteller: Springer-Verlag GmbH
Herausgeber: Springer
Genre: Sonstiges
Anzahl Seiten: 274
Veröffentlichung: 29.01.2009
Jahr: 2009
Dateigrösse: 219.0 MB

Weitere Bände aus der Buchreihe "Topics in Geobiology"

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