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日本堆積学会　メールマガジン　◆2016年11月29日（705号）
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2017 Lyell Geolsoc Meeting

Are a range of sedimentological features actually microbial trace fossils?!
Come discuss this and other topics around biological impacts on sedimentary processes
and deposits at the 2017 Lyell Meeting, titled Lyell Meeting 2017: Sticking Together:
microbes and their role in forming sediments

Date:  07 March 2017; 
Venue: Geological Society, Burlington House, London 
Web: www.geolsoc.org.uk/lyell17
ABSTRACT DEADLINE 12 JANUARY 2017 

Sticking Together - microbes and their role in forming sediments Sedimentology
and geomorphology have traditionally been seen as fields in which physical, and
sometimes chemical, processes dominate completely. Even in settings where
biological processes have long been recognised, for example in marine carbonates,
focus has been almost entirely on metazoans. This is curious, because microbial
communities since the Pre-Cambrian, have suffused all sedimentary environments
on Earth, and at least half global biomass is prokaryotic. Are all these microbes
simply bystanders? Recent research has hinted that they are key agents in controlling
an impressive range of processes and products in sedimentology, bringing the fields of
microbe palaeontology and bio-sedimentology into intimate alignment. The implications
are fundamental, and pose the question “are large-scale sedimentological features
actually microbial trace fossils?”. This meeting will put the majority of life on earth
back into its proper place within the sedimentary geosciences. It will shed new light on
the important roles that microbial life plays in controlling how sediments erode, transport,
precipitate, deposit and cement. We will explore whether microbial processes can leave
signatures in sedimentary deposits that prove life was there, despite the fact that the
majority of global biomass has nearly zero preservation potential. Ultimately, we will lift
the lid on the exciting field of sedimentary geobiology as we collectively work towards
a new paradigm of microbial sedimentology.



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