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Dive into the research topics where M. Walter is active.

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Featured researches published by M. Walter.


Science | 1972

Siliceous algal and bacterial stromatolites in hot spring and geyser effluents of Yellowstone National Park

M. Walter; John Bauld; Thomas D. Brock

Growing algal and bacterial stromatolites composed of nearly amorphous silica occur around hot springs and geysers in Yellowstone National Park, Wyoming. Some Precambrian stromatolites may be bacterial rather than algal, which has important implications in atmospheric evolution, since bacterial photo-synthesis does not release oxygen. Conophyton stromatolites were thought to have become extinct at the end of the Precambrian, but are still growing in hot spring effluents.


Annual Review of Ecology, Evolution, and Systematics | 1999

Astrobiology: exploring the origins, evolution, and distribution of life in the Universe

D. J. Des Marais; M. Walter


Archive | 1992

The Proterozoic Biosphere: Modern Mat-Building Microbial Communities: a Key to the Interpretation of Proterozoic Stromatolitic Communities

Beverly K. Pierson; John Bauld; Richard W. Castenholz; Elisa D'Amelio; David J. Des Marais; Jack D. Farmer; John P. Grotzinger; Bo Barker Jørgensen; Douglas C. Nelson; Anna C. Palmisano; J. William Schopf; Roger E. Summons; M. Walter; David M. Ward


Archive | 2002

Early eukaryotic diversification

Emmanuelle Javaux; Andrew H. Knoll; M. Walter


Archive | 2004

Protistan evolution in the Precambrian: a new multidisciplinary approach combining microscopy and microchemistry

Emmanuelle Javaux; C. P. Marchall; Andrew H. Knoll; M. Walter


Archive | 2005

Life on a transgressive rocky shoreline and carbonate platform: 3.43 Ga Strelley Pool Chert, Pilbara Craton, Western Australia

Abigail C. Allwood; M. Walter; M. Van Kranendonk; Balz S. Kamber


Archive | 2004

Early eukaryotes in Paleoproterozoic and Mesoproterozoic oceans

Emmanuelle Javaux; Craig P. Marshall; S. Xiao; Andrew H. Knoll; M. Walter


Archive | 1999

Terminal Proterozoic Benthic Microbial Mats and Their Environmental Significance

Graham A. Logan; Clive R. Calver; Paul Gorjan; Roger E. Summons; J. M. Hayes; M. Walter


Archive | 1997

FOSSILIZATION PROCESSES IN MODERN THERMAL SPRINGS: CLUES FOR ASSESSING THE BIOGENICITY OF ANCIENT HYDROTHERMAL DEPOSITS. Jack

D. Farmer; Sherry L. Cady; David J. Des Marais; M. Walter; Nasa Ames


Archive | 2010

NEW INSIGHTS INTO THE Early EVOLUTION OF LiFe: EVIDENCE FROM THE pilbara craton

Ken Sugitani; Kath Grey; Martin J. Van Kranendonk; Dorothy Z. Oehler; Emmanuelle J. Javaux; Kevin Lepot; M. Walter

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Abigail C. Allwood

California Institute of Technology

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J. M. Hayes

Woods Hole Oceanographic Institution

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John Bauld

University of Wisconsin-Madison

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