Relative dating sequence Xdating los angeles

In the same way, such a transect could also show the inferred profile of the geology underfoot -- the expected rock layers and structures beneath the land from the northwest corner to the southeast corner of the map. You can open a larger version of this diagram by clicking on it.

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Applying the principles of relative dating to these rock exposures (also called "outcrops"), we can reconstruct the sequence of events that created the geologic features which we see.

Events can be the deposition of a sedimentary layer, the eruption of a lava flow, the intrusion of magma to form a batholith, a fault (break) in the rock that shifts one side relative to the other side (and causes an earthquake), a fold that bends and distorts rock layers, or any number of other geologic processes.

This map displays the large-scale (also called "regional") geologic features they have inferred are present beneath the landscape.

Along with these geologic maps, we can reconstruct a regional geologic cross-section which would be like a great "geologic slice" through the landscape.

To review our principles of relative dating as applied to such geologic cross-sections, we will make use of a neat learning tool available on the Internet.

"Athro Limited" is a private company which provides education modules on the Internet.Include all the events which can be inferred from the drawing.List which relative dating principles apply to the order of each event.Notice that the rock layers are each labeled with several letters.Each rock layer was deposited at a different geologic time.All 13 lettered events need to be included in your sequence.

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