-
Euxinia or
euxinic conditions occur when
water is both
anoxic and sulfidic. This
means that
there is no
oxygen (O2) and a
raised level of free hydrogen...
-
pulse was ****ociated with
intense worldwide anoxia (oxygen depletion) and
euxinia (toxic
sulfide production),
which persisted into the
subsequent Rhuddanian...
-
enhanced volcanism (the
release of CO2) as the "central
external trigger for
euxinia."
Human activities in the
Holocene epoch, such as the
release of nutrients...
- Traps,
which released sulfur dioxide and
carbon dioxide,
resulting in
euxinia (oxygen-starved,
sulfurous oceans),
elevated global temperatures, and acidified...
-
photic zone
euxinia was
preceded by an
interval of
limited nitrogen availability and
increased nitrogen fixation in
surface waters while euxinia developed...
- erosion,
which in turn has been
propounded as a
factor enhancing oceanic euxinia.
Euxinia may have been
exacerbated even
further by the
increasing sluggishness...
-
Boring Billion may have been oxygen-poor, nutrient-poor and
sulfidic (
euxinia), po****ted by
mainly anoxygenic purple bacteria, a type of bacteriochlorophyll-based...
- ISSN 0012-8252. Marynowski, Leszek; Filipiak, Paweł (2007-05-01). "Water
column euxinia and
wildfire evidence during deposition of the
Upper Famennian Hangenberg...
-
variations during the Proterozoic,
including a billion-year
period of
euxinia,
until reaching a
steady state of more than 15% by the end of the Precambrian...
-
events provide direct evidence for an
increase in anoxia.
Photic zone
euxinia, do****ented by
concurrent negative ∆199Hg and
positive δ202Hg excursions...
