- The
Paleoproterozoic Era (also
spelled Palaeoproterozoic) is the
first of the
three sub-divisions (eras) of the
Proterozoic eon, and also the
longest era...
-
incorporated among the Archaea.
Eukaryotes first emerged during the
Paleoproterozoic,
likely as
flagellated cells. The
leading evolutionary theory is they...
- as the
Vredefort Dome. The
impact structure was
formed during the
Paleoproterozoic Era, 2.023 billion (± 4 million)
years ago. It is the second-oldest...
-
subdivided into
three geologic eras (from
oldest to youngest): the
Paleoproterozoic,
Mesoproterozoic and Neoproterozoic. It
covers the time from the appearance...
-
oxygen in the atmosphere,
leading to the
Great Oxidation Event in the
Paleoproterozoic era. The
earliest evidence of
microbial oxidation of sulphur, dating...
- of the oldest. The
crater was
formed 1.849
billion years ago in the
Paleoproterozoic era. The
basin is
located on the
Canadian Shield in the city of Greater...
- "Anatomy of
impactites and
shocked zircon grains from
Dhala reveals Paleoproterozoic meteorite impact in the
Archean ba****t
rocks of
Central India". Gondwana...
- given, base of
Paleoproterozoic defines the end of the
Siderian Refinement of
geochronometric divisions of the Proterozoic,
Paleoproterozoic, repositioning...
- also,
intrusive Early Paleoproterozoic ultramafic rocks. The term
Zoroaster Plutonic Complex is used for all
Paleoproterozoic granitic and grandioritic...
- 2 billion
years ago (Gya),
during the
Siderian and
Rhyacian periods of the
Paleoproterozoic era.
Evidence for
glaciation is
mainly based on the
recognition of...
