HOME >> BIOLOGY >> NEWS
Scientists share multidisciplinary discoveries at 'Earth System Processes'

n_182.htm. Poster Session 30 Abstracts: http://gsa.confex.com/gsa/2001ESP/finalprogram/session_996.htm.

Can you imagine our world being devoid of oxygen for almost half of its history? And suddenly there's an abrupt rise at ~2 ga? This amazing picture of our Earth is finding increasing support from rock record geologic data.

"But what intrigues physical and biological scientists alike is why the rise and why at ~2 ga?" remarked Janet Siefert, co-chair for this session. Siefert is a molecular evolutionist at Rice University in Houston, Texas.

"We know with increasing certainty from geologic biomarkers, fossils, and molecular phylogenies that the organisms most likely responsible for this rise, the ubiquitous cyanobacteria or their ancestors, were surely present at least half a million years prior to the rise. So why the lag?"

The rise of oxygen is a great science question. It is unique because there are as many theories that postulate the event as dominated by physical processes as there are ones that predict it was a biologically mediated phenomenon. This session will bring oceanographers, genome analysts, and geoscientists with their competing theories, together in one venue with the hopes that a more substantive and accurate picture of what may have actually occurred can be brought to the fore.

The newest discoveries are coming from papers that are multidisciplinary in nature:

  • David Catling, from the Space Science Division of the NASA Ames Research Center and the SETI Institute, will build on the idea that the Archean atmosphere was dominated by methane as the primary greenhouse gas, but expands it to include an explanation for the oxidation of Earth. He postulates that the kinetic effects of oxygen and methane are reversed from today; in effect hydrogen escape to space was inescapable and oxygenation of the atmosphere was irreversible.
  • Christian
    '"/>


Contact: Ann Cairns
acairns@geosociety.org
303-447-2020 ext1156
Geological Society of America
13-Jun-2001


Page: 1 2 3 4 5 6 7 8 9

Related biology news :

1. Scientists to prototype cyberinfrastructure for research and education access to ocean observatories
2. Scientists sequence genome of kind of organism central to biospheres carbon cycle
3. Scientists find nanowires capable of detecting individual viruses
4. Scientists discover potential new way to control drug-resistant bacteria
5. Scientists explore genome of methane-breathing microbe
6. Scientists decipher genetic code of biothreat pathogen
7. Stuck on you: Scientists lay bare secrets of bacterial attachment proteins
8. Scientists discover proteins involved in spread of HIV-1 infection
9. Scientists fear new Ebola outbreak may explain sudden gorilla disappearance
10. Scientists reinvent DNA as template to produce organic molecules
11. Scientists visualise cellular handmaiden that restores shape to proteins

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:6/14/2017)... IBM ) is introducing several innovative partner startups at VivaTech ... startups and global businesses, taking place in Paris ... will showcase the solutions they have built with IBM Watson ... France is one of the most dynamic ... in the number of startups created between 2012 and 2015*, ...
(Date:4/24/2017)... 2017 Janice Kephart , former ... Strategy Partners, LLP (IdSP) , today issues the ... Trump,s March 6, 2017 Executive Order: Protecting ... can be instilled with greater confidence, enabling the ... refugee applications are suspended by until at least ...
(Date:4/13/2017)... According to a new market research report "Consumer IAM Market by ... Service, Authentication Type, Deployment Mode, Vertical, and Region - Global Forecast to ... USD 14.30 Billion in 2017 to USD 31.75 Billion by 2022, at ... ... MarketsandMarkets Logo ...
Breaking Biology News(10 mins):
(Date:10/12/2017)... ... October 12, 2017 , ... ... with the addition of its newest module, US Hemostats & Sealants. , SmartTRAK’s ... hemostats, absorbable hemostats, fibrin sealants, synthetic sealants and biologic sealants used in surgical ...
(Date:10/12/2017)... , ... October 12, 2017 ... ... has launched Rosalind™, the first-ever genomics analysis platform specifically designed for life ... Named in honor of pioneering researcher Rosalind Franklin, who made a major ...
(Date:10/11/2017)... ... October 11, 2017 , ... The CRISPR-Cas9 ... enabling overexpression experiments and avoiding the use of exogenous expression plasmids. The simplicity ... for performing systematic gain-of-function studies. , This complement to loss-of-function studies, such ...
(Date:10/11/2017)... (PRWEB) , ... October 11, 2017 , ... ComplianceOnline’s Medical ... place on 7th and 8th June 2018 in San Francisco, CA. The Summit brings ... well as several distinguished CEOs, board directors and government officials from around the world ...
Breaking Biology Technology:
Cached News: