-
fossils in Namibia, and
probably in Spain. The
Cambrian is
divided into four
epochs (series) and ten ages (stages).
Currently only
three series and six stages...
-
Epoch of the
Silurian (444–443 Ma).
There was no
break in
sediments in the area
until the end of the
Early Devonian,
which was
caused by the
Acadian Orogeny...
-
numeric representation of an
intangible property (time). Eon, era, period,
epoch, subepoch, age, and
subage are the
hierarchical geochronologic units. Geochronometry...
- mountain-building
events as
Laurussia and
Gondwana approached;
these include the
Acadian Orogeny in
North America and the
beginning of the
Variscan Orogeny in Europe...
- the
Northern United States,
multiple times during the
Quaternary glacial epochs, from 2.58
million years ago to the present. The last
advance covered most...
- by the
Caledonian folding or in
North America as an
early phase in the
Acadian orogeny. In the Carboniferous, the new
continent and
another terrane, Armorica...
- the
French raid on Deerfield, New
Englander Benjamin Church raided the
Acadian village of
Castine before gathering at
Mount Desert Island with
other ships...
-
Euramerica showing the
Caledonian orogeny The
branches of the Caledonian/
Acadian belts at the end of the
Caledonian orogeny (Early Devonian). Present-day...
- Late
Silurian Perry Mountain,
Smalls Falls, and
Madrid Formations. The
Acadian orogeny took
place during the
middle to late Devonian.
Following the subduction...
-
geologic formation in Quebec. It
preserves fossils dating back to the
Ludlow epoch of the
Silurian period. The
Indian Point Formation comprises thin- to thick-bedded...