Examples of 'precambrian' in a sentence
Meaning of "precambrian"
Precambrian is a geological time period before the Paleozoic era, characterized by the absence of complex life forms
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- Relating to the time and geology dated before the Phanerozoic
- The Precambrian supereon; spanning from the formation of the Earth around 4.6 billion years ago to the emergence of hard-shelled creatures 541 million years ago.
How to use "precambrian" in a sentence
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precambrian
Nordic alvar and precambrian calcareous flatrocks.
Precambrian slates and clays are predominant in the area.
Economic mineral deposits in precambrian basement complex.
Precambrian marine diversity was dominated by small fossils known as acritarchs.
Economic mineral deposits in precambrian basement co.
Precambrian strata are rarely exposed.
This was like so since the precambrian to the quaternary in which we are.
Precambrian granitic rock.
It looks like something precambrian to me.
Precambrian base rock.
Thunderhead consists of precambrian sandstone.
Precambrian calcareous flatrock.
Shield of precambrian age.
Precambrian bedrock units are locally brecciated and cut by allochthonous breccia dikes.
The massif is composed of a basement of precambrian gneisses and cambrian orthogneisses.
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Precambrian metamorphic rock is the oldest rock and there are also deposits of volcanic rocks.
Also closer to the coast you have precambrian continental basement.
Precambrian fossils are present but rare in California.
Rabbits in the precambrian.
Most of these Precambrian fossils are microscopic bacteria or microfossils.
It consists of highly eroded Precambrian metamorphic rock.
Basement rocks are metamorphic and date to the Precambrian.
They are in a Precambrian outcrop of black shale.
Stromatolites were much more abundant in Precambrian times.
So maybe the Precambrian was once the surface of the earth.
The core of the mountain is Precambrian granite.
The Precambrian tectonic evolution of the region is poorly understood.
They lie unconformably on the Precambrian basement.
The Precambrian rock is the clay from which this.
A blissfully deviant domestication of Precambrian fur.
Over top of the ancient Precambrian rocks are sedimentary rocks.
These deposits were formed by supergene enrichment of Precambrian sediments.
Over top of the old Precambrian rocks are sedimentary rocks.
The side of the pit consists of Precambrian gabbro.
They found frozen Precambrian insects and diatoms in perfect condition.
Charnia has become an enduring image of Precambrian animals.
Many of these faults are Precambrian in age and are still active today.
The system was last active in the Precambrian.
He was the first to discover Precambrian fossils around the world.
Its angular course is controlled by faults in the Precambrian rocks.
The old age of the Precambrian era contributes to a scarcity of fossils.
The underlying rocks in this area are Precambrian metamorphics.
Some Precambrian rocks may be well over two billion years old.
Pteridinium is an erniettomorph found in a number of Precambrian deposits worldwide.
This raised the Precambrian gneiss and schist that makes up the canyon walls.
The basement rock is of Precambrian age.
The Precambrian carbonate aquifer is the most important groundwater reservoir of the Bangui region.
Their fluctuations correlate with Precambrian supercontinent cycles.
Hundreds of millions of years separate this period from the Precambrian.
But they never met any Precambrian life forms.
