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Biology Articles » Geobiology

Geobiology

Geobiology is a science that combines geology and biology to study the interactions of organisms with their environment. Articles on Geobiology include topics on the interactions of the biosphere with the lithosphere, or with the athmosphere.


Geobiology Articles

New Bacterial Behavior: Puzzling 'Dance' of Electricity-Producing Bacteria Near Energy Sources
Bacteria dance the electric slide, officially named electrokinesis by the USC geobiologists who discovered the phenomenon.

Date: 4 May 2010, Rating: 5.00

Methane-Eating Microbes Can Use Iron And Manganese Oxides To 'Breathe'
Iron and manganese compounds, in addition to sulfate, may play an important role in converting methane to carbon dioxide and eventually carbonates in the Earth's oceans, according to a team of researchers looking at anaerobic sediments.

Date: 4 May 2010, Rating: 3.25

Snowball Earth: New Evidence Hints at Global Glaciation 716.5 Million Years Ago
Geologists have found evidence that sea ice extended to the equator 716.5 million years ago, bringing new precision to a "snowball Earth" event long suspected to have taken place around that time.

Date: 4 May 2010, Rating: 5.00

Environmental Disaster in Southern Spain Compared With Cretaceous Mass Extinction
Researchers from the University of Granada (UGR) have compared the disaster caused by the Aznalcóllar spillage in the Doñana National Park in Andalusia 11 years ago with the biggest species extinction known to date.

Date: 4 May 2010, Rating: not rated

Chemical Imaging Of Deep-Sea Microorganisms May Help Explain Lingering Nitrogen Mystery
Researchers at the California Institute of Technology (Caltech) have identified an unexpected metabolic ability within a symbiotic community of microorganisms that may help solve a lingering mystery about the world's nitrogen-cycling budget.

Date: 4 May 2010, Rating: not rated

Life May Extend Planet's 'Life': Billion-Year Life Extension For Earth Also Doubles Odds Of Finding Life On Other Planets
Roughly a billion years from now, the ever-increasing radiation from the sun will have heated Earth into inhabitability...

Date: 4 May 2010, Rating: 5.00

Earliest Complex Organisms Fed By Absorbing Ocean Buffet, Geobiologists Propose
Research at Virginia Tech has shown that the oldest complex life forms -- living in nutrient-rich oceans more than 540 million years ago – likely fed by osmosis.

Date: 4 May 2010, Rating: not rated

Quick Rebound From Marine Mass Extinction Event, New Findings Show
In 1980, Luis Alvarez and his collaborators stunned the world with their discovery that an asteroid impact 65 million years ago probably killed off the dinosaurs and much of the the world's living organisms.

Date: 4 May 2010, Rating: not rated

Microbial and hydrothermal aspects of ferric oxyhydroxides and ferrosic hydroxides: the example of Franklin Seamount, Western Woodlark Basin, Papua New Guinea
This paper presents mineralogical, chemical and morphological information on the oxyhydroxides from Franklin Seamount...

Date: 9 Jul 2009, Rating: 3.38, 14 pages

The effect of adsorbed lipid on pyrite oxidation under biotic conditions
This investigation reports on the growth of this bacterial species on the pyrite surface and in the aqueous phase at a pH close to 2 as well as the role of adsorbed lipid in preventing pyrite dissolution.

Date: 9 Jul 2009, Rating: not rated, 9 pages

Influence of ancient glacial periods on the Andean fauna: the case of the pampas cat (Leopardus colocolo)
In this study, the genetic structure of the pampas cat (Leopardus colocolo), a widely distributed felid, was determined and linked to ancient climate fluctuations on the Andean region.

Date: 8 Jul 2009, Rating: 1.00, 12 pages

Deep Sea Algae Connect Ancient Climate, Carbon Dioxide And Vegetation
Assistant Professor Mark Pagani in the Department of Geology and Geophysics at Yale and his colleagues mapped the first detailed history of atmospheric carbon dioxide between 45 - 25 million years ago based on stable isotopes of carbon...

Date: 5 Jul 2009, Rating: not rated

Carbon Dioxide Helped Ancient Earth Escape Deathly Deep Freeze
The planet’s present day greenhouse scourge, carbon dioxide, may have played a vital role in helping ancient Earth to escape from complete glaciation

Date: 5 Jul 2009, Rating: not rated

Cleaning The Atmosphere Of Carbon: African Forests Out Of Balance
Tropical forests hold more living biomass than any other terrestrial ecosystem.

Date: 5 Jul 2009, Rating: not rated

Atmosphere Threatened By Nitrogen Pollutants Entering Ocean
A large quantity of nitrogen compounds -- emitted into the atmosphere by humans through the burning of fossil fuels and the use of nitrogen fertilizers -- enters the oceans and may lead to the removal of some carbon dioxide from the atmosphere...

Date: 5 Jul 2009, Rating: 3.33

Tropical Rainforest Nutrients Linked To Global Carbon Dioxide Levels
Extra amounts of key nutrients in tropical rain forest soils cause them to release more carbon dioxide into the atmosphere, according to research conducted by scientists at the University of Colorado (CU) - Boulder.

Date: 5 Jul 2009, Rating: 4.00

How Humans Have Disrupted The Nitrogen Cycle
More and more, scientists are getting a better grip on the nitrogen cycle.

Date: 5 Jul 2009, Rating: 2.50

Global Warming's Ecosystem Double Whammy
Plants and soils act like sponges for atmospheric carbon dioxide, but new research finds that one abnormally warm year can suppress the amount of carbon dioxide taken up by some grassland ecosystems for up to two years

Date: 5 Jul 2009, Rating: not rated

Study casts doubt on 'Snowball Earth' theory
Remains of photosynthesizing microbes in prehistoric rocks suggest Earth was not ice-bound

Date: 15 Feb 2008, Rating: 3.80

Paired microbes eliminate methane using sulfur pathway
Anaerobic microbes in the Earth's oceans consume 90 percent of the methane produced by methane hydrates - methane trapped in ice - preventing large amounts of methane from reaching the atmosphere.

Date: 15 Feb 2008, Rating: 4.00