The resulting mountain range is believed to have been 5 6 miles high.
In what environment did the zoroaster granite form.
It is placed in the early proterozoic era.
Thinking of the geologic record as a book is helpful to understand each page of earth s history.
The beginning of the story starts at the bottom of the.
The geology of the grand canyon area includes one of the most complete and studied sequences of rock on earth.
Use the movie controls to examine each frame and read the caption text.
Interactive immersive virtual field trips.
The nearly 40 major sedimentary rock layers exposed in the grand canyon and in the grand canyon national park area range in age from about 200 million to nearly 2 billion years old.
No fossils have been found in this basement rock.
The grand canyon tells one of the world s greatest geologic stories.
How did the layers of the grand canyon form.
The projected age is 1700 1850 myr.
Because of the extreme heat and pressure that folded and changed the rock any fossils in the original rock were destroyed.
Zoroaster granite intruded into the vishnu schist at the base of the grand canyon.
Circle which rock family ies these rocks belong to.
Click the bottom layer of the diagram to see the steps that resulted in the formation of the rocks.
Most were deposited in warm shallow seas and near ancient long gone sea shores in western north america.
Sedimentary igneous metamorphic bright angel shale if you came to grand canyon area 515 million years ago when the.
Es2906 vishnu schist and zoroaster granite.