Results 111 to 120 of about 21,253 (209)

Geological record and reconstruction of the late Pliocene impact of the Eltanin asteroid in the Southern Ocean [PDF]

open access: yes, 1997
Abelmann, Andrea   +12 more
core   +1 more source

Microbial mats in playa lakes and other saline habitats: Early Mars analog? [PDF]

open access: yes
Microbial mats are cohesive benthic microbial communities which inhabit various Terra (Earth-based) environments including the marine littoral and both permanent and ephemeral (playa) saline lakes.
Bauld, John
core   +1 more source

The sediment microorganisms under the oxygen minimum zone: present day analogs of precambrian oceans? Los microorganismos de sedimentos bajo la zona de mínimo oxigeno: análogos de oceanos precambricos?

open access: yesGayana, 2006
A review of the latest findings relating big filamentous sublittoral bacteria of sediments under the oxygen minimum zone (OMZ) of the eastern Pacific, and, on the basis of associated morphological and environmental factors, an analysis and comparison of ...
Victor Ariel Gallardo, Carola Espinoza
doaj  

Organic walled microfossils in wet peperites from the early Cretaceous Paraná-Etendeka volcanism of Brazil. [PDF]

open access: yesSci Rep, 2023
Del Mouro L   +10 more
europepmc   +1 more source

Early Archean (approximately 3.4 Ga) prokaryotic filaments from cherts of the apex basalt, Western Australia: The oldest cellularly preserved microfossils now known [PDF]

open access: yes
In comparison with that known from later geologic time, the Archean fossil record is miniscule: although literally hundreds of Proterozoic formations, containing more that 2800 occurrences of bona fide microfossils are now known, fewer than 30 units ...
Schopf, J. W.
core   +1 more source

Exobiology and Future Mars Missions [PDF]

open access: yes
Scientific questions associated with exobiology on Mars were considered and how these questions should be addressed on future Mars missions was determined.
Davis, Wanda, L., Mckay, Christopher P.
core   +1 more source

Considerações sobre a Estratigrafia Pós-Evaporítica da Porção Sul da Bacia do Espírito Santo [PDF]

open access: yesAnuário do Instituto de Geociências, 1980
Maria Antonieta Rodrigues
doaj  

Home - About - Disclaimer - Privacy