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Act 2 LATE PROTEROZOIC SEDIMENTATION AND RIFTING PowerPoint PPT Presentation


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Act 2 LATE PROTEROZOIC SEDIMENTATION AND RIFTING. Grand Canyon Supergroup. basalt. Block-faulted mountains. Normal faults. Grand Canyon Supergroup. Act 3 “The DCM” PALEOZOIC SEDIMENTATION. The Great Unconformity. Paleozoic. Proterozoic. The Great Unconformity. Paleozoic. Proterozoic.

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Act 2 LATE PROTEROZOIC SEDIMENTATION AND RIFTING

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Act 2 late proterozoic sedimentation and rifting

Act 2

LATE PROTEROZOIC SEDIMENTATION AND RIFTING


Act 2 late proterozoic sedimentation and rifting

Grand Canyon Supergroup

basalt


Act 2 late proterozoic sedimentation and rifting

Block-faulted mountains

Normal faults


Act 2 late proterozoic sedimentation and rifting

Grand Canyon Supergroup


Act 2 late proterozoic sedimentation and rifting

Act 3

“The DCM”

PALEOZOIC SEDIMENTATION


Act 2 late proterozoic sedimentation and rifting

The Great Unconformity

Paleozoic

Proterozoic


Act 2 late proterozoic sedimentation and rifting

The Great Unconformity

Paleozoic

Proterozoic


Act 2 late proterozoic sedimentation and rifting

Angular unconformity?

Disconformity?

Nonconformity?


Act 2 late proterozoic sedimentation and rifting

Angular unconformity


Act 2 late proterozoic sedimentation and rifting

Shinumo Quartzite “islands”

Tapeats Sandstone

Grand Canyon Supergroup


Act 2 late proterozoic sedimentation and rifting

The Great Unconformity


Act 2 late proterozoic sedimentation and rifting

EVENTS

Pangaea

Pannotia


Act 2 late proterozoic sedimentation and rifting

EVENTS

Pangaea

Grand Canyon Sequence

Pannotia


Act 2 late proterozoic sedimentation and rifting

EVENTS

Pangaea

Pannotia


Act 2 late proterozoic sedimentation and rifting

EVENTS

Pangaea

Orogeny

Orogeny

Slower Sea Floor Spreading

Orogeny

Orogeny

Rapid Sea Floor Spreading

Sediment Transfer into Oceans

Pannotia


Act 2 late proterozoic sedimentation and rifting

Deposition


Act 2 late proterozoic sedimentation and rifting

Deposition

transgressions


Act 2 late proterozoic sedimentation and rifting

Unconformities

(no sediment record)


Act 2 late proterozoic sedimentation and rifting

Unconformities

(no sediment record)

regressions


Act 2 late proterozoic sedimentation and rifting

4th

4th

Cratonic sequences

3rd

3rd

2nd

2nd

1st

1st


Act 2 late proterozoic sedimentation and rifting

KNOW THE CANYON’S HISTORY

STUDY ROCKS TRULY MADE BY TIME

4th

3rd

2nd

1st


Act 2 late proterozoic sedimentation and rifting

The First Transgression


Act 2 late proterozoic sedimentation and rifting

EVENTS

Pangaea

Rapid Sea Floor Spreading

Sediment Transfer into Oceans

Pannotia


Act 2 late proterozoic sedimentation and rifting

What kind of unconformity is it?

Tapeats Sandstone

Vishnu schist


Act 2 late proterozoic sedimentation and rifting

What kind of unconformity is it?

Nonconformity


Act 2 late proterozoic sedimentation and rifting

Tidal lenses


Act 2 late proterozoic sedimentation and rifting

Tapeats Sandstone


Act 2 late proterozoic sedimentation and rifting

Name?


Act 2 late proterozoic sedimentation and rifting

(hint)


Act 2 late proterozoic sedimentation and rifting

Bright Angle Shale


Act 2 late proterozoic sedimentation and rifting

Typical exposures

Bright Angel Shale


Act 2 late proterozoic sedimentation and rifting

Redwall

Muav

Tonto Platform

Bright Angel

Tapeats


Act 2 late proterozoic sedimentation and rifting

Good exposures where rapidly eroded.


Act 2 late proterozoic sedimentation and rifting

Muav Limestone on Kaibab Trail


Act 2 late proterozoic sedimentation and rifting

Muav Limestone at Royal Arch


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