Geologic Time

Geologic Time - contacts not the types of rock) define...

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discomforimity is a variety of unconformity when the rocks are jagged, that means water was there, water goes away and the rock is eroded, and then water comes back and puts more rock on top of that. when the rocks are tilted and horizontal, tectonic activity occurred and moved the rocks into a vertical position. there is rock and then magma comes in and melts it all into an igneous rock. .. then the rock is weathered. Then it is covered with water again (deposition?) the rock is then again uplifted and eroded "doing" relative stratigraphy Goals: Reconstruct the sequence of events use the 6 principals explain what processes define the nature of contacts between the stratigraphic units (look at
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Unformatted text preview: contacts not the types of rock) define where time is lost, and why EX: A) Sedimentary deposition (a-g) straight lines with water onto Use horizontally and superposition B)Uplift, tilting and faulting (a-g) in diagonal lines and the transform fault "H" is there C) Erosion. ... the top rocks are eroded. .. turns into I D) Sedimentary deposition (JKL added) and water on top "angular unconformity" E) Intrusion of Magma (M) (perhaps a dike) F) Uplift and erosion G) Sedimentary deposition on top of eroded L (NOPQ) added H) Intrusion (R) I) Lava flow (S) J) Sedimentary deposition (T) water on top Lab...
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Geologic Time - contacts not the types of rock) define...

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