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How to use Proterozoic in a sentence

Looking for sentences and phrases with the word Proterozoic? Here are some examples.

Sentence Examples
The record has been much deformed, reconstituted, and obliterated during the subsequent Proterozoic and Phanerozoic eons.
Scattered throughout the Pena Negra migmatites there are small bodies of Upper Proterozoic gneissic granodiorite and granite.
Archaean and Proterozoic basement terranes are commonly dissected by swarms of Precambrian mafic dykes.
Precambrian divisions such as the Proterozoic and the Archean were conventionally eras but are now often referred to as eons.
Subsequently, between the Late Proterozoic and the Mesozoic, the rocks throughout the region suffered periodic episodes of deformation.
This is the general name for all Archaean and Proterozoic basement gneisses of the NW Scotland mainland and Outer Hebrides.
Archean and most Proterozoic sedimentary rocks are notable for their distinct lack of any bioturbated textures.
The Indian plate rocks include late Archaean, Proterozoic and Phanerozoic continental margin sequences.
Recent studies of Proterozoic orogenic belts have shown that they may be underlain, at mid to lower crustal levels, by keels of Archaean crust.
The key to understanding the early evolution of eukaryotes lies in the Proterozoic fossil record, especially microfossils.
Major crustal rifting has also played a part in the evolution of large bodies of Proterozoic sedimentary and igneous rocks.
This session will focus on the evolution of magmatic and lithospheric processes during the Proterozoic.
Several are associated with monocyclic Proterozoic basins, like those of Mont-Laurier and Wakeham.
Stratigraphically he has studied both Lower and Middle Proterozoic strata and Lower Paleozoic strata.
Scattered throughout the Mojave Desert, outcrops of Proterozoic sedimentary rock make up parts of the mountain ranges that divide this region into basins.
Mafic enclaves in basement gneisses indicate oceanic to island arc conditions during the latest Archaean to earliest Proterozoic period.
Acritarchs continue to be used in studies of Proterozoic paleoecology and stratigraphy, even though their systematic affinities are still not well understood.
Proterozoic oceans on Earth held much more oxygen at the surface than their oxygen deserts at depth.
Although his stratigraphic studies have focused primarily on the Proterozoic and Cambrian, he has also worked on Triassic and Jurassic strata.
By the beginning of the Proterozoic 2.5 billion years ago, the Earth would have begun to look more familiar to us.
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Examples from Classical Literature
Hence, uplift alone cannot account for extensive glaciation in subtropical latitudes during the Permian and Proterozoic.
The later Proterozoic strata have been much less deformed and in many cases they are practically unaltered.
The early and middle Proterozoic strata throw no more light upon the early history of animal life than do the Archeozoic strata.
Thus, igneous rocks distinctly predominate in the Archeozoic, while stratified rocks predominate in the Proterozoic.
This second series of rocks is called the Proterozoic series, and marks a long age in the worlds history.
Similar forms are abundant in late Proterozoic strata of Montana.
But how may we separate the Proterozoic rocks from the Archeozoic?
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