Adapted from national park service.
Zoroaster granite fossils.
Vishnu schist and zoroaster granite.
Zoroaster granite intruded into the vishnu schist at the base of the grand canyon.
Circle which rock family ies these rocks belong to.
The intrusive igneous rocks here are called zoroaster granite.
The term unconformity is used for a location where two layers of rock are in contact but there is evidence that material is missing i e the two layers were not formed at the same time.
Use the movie controls to examine each frame and read the caption text.
Zoroaster granite and vishnu schist at the bottom of the grand canyon we find rocks that formed during the precambrian two of which are the zoroaster granite and vishnu schist.
Because of the extreme heat and pressure that folded and changed the rock any fossils in the original rock were destroyed.
Certain fossils called index fossils are particularly useful because they are abundant in a relatively narrow time range.
Because of the extreme heat and pressure that folded and changed the rock any fossils in the original rock were destroyed.
Sedimentary igneous metamorphic bright angel shale if you came to grand canyon area 515 million years ago when the.
Move your cursor over the photograph to highlight the vishnu schist and the zoroaster granite.
In general a granite is defined as an igneous rock that forms from the crystallization of magma while a schist is a metamorphic rock that forms when shale is subjected.
Click the bottom layer of the diagram to see the steps that resulted in the formation of the rocks.