Refer to Geological Map 1294A Banff East Half, Alberta, and answer the following
ID: 119410 • Letter: R
Question
Refer to Geological Map 1294A Banff East Half, Alberta, and answer the following questions.
1. What age are the oldest rocks on this map sheet? (Note: Give the geologic period.) Where are these rocks located?
2. What is the range in age of rocks from Brewster Creek (in the western part of the map, starting at the word Creek and running to the first thrust fault to the east after the letters SUNDANC)? (Note: Give the geologic periods.)
3. In what direction are the beds in the Sundance Range dipping?
4. If the strike and dip symbol were not shown, how would you determine the direction of dip for beds in the Sundance Range?
5. Consider the fault-bounded block on which the letters SUNDANC are written, relative to the block to its south, on which the letter E is written. Did the SUNDANC block move up or down relative to the E block?
6. What kind of faults are oriented northwest-southeast on this map?
7. What kind of structure occurs along Brewster Creek on the western part of the map?
8. In what direction is the structure in question 7 plunging?
9. Locate the stream valley that occurs at about 51o 2.5’ and 115o 37.5’. Where the letters Met occur, are the beds dipping to the northeast or to the southwest? What general rule would suggest this as the direction of dip, even if strike and dips were not given on the map?
10. What kind of structure occurs on Cascade Mountain (in the northeast corner of the map) just northeast of the M in MOUNTAIN?
0e EOLOOy BANFF [EAST MA4 NOT TO EE TAKEN FROLIBRARY NE PAS SOklik DE LA alauotHEQUE cou ma, Sale 3 50000Explanation / Answer
1. age the age of oldest rocks on this map sheet are proterozoic (windermere) rocks.
these rocks are located mainly in miette group (hadrynian) marked at the north west in the map.
2. the range in age of rocks from Brewster Creek (in the western part of the map, starting at the word Creek and running to the first thrust fault to the east after the letters SUNDANC) is mainly upper cambrian.
3. the beds in the Sundance Range dipping towards south west direction..
4. If the strike and dip symbol were not shown, then from the thrust fault it will easy to determine the direction of dip for beds in the Sundance Range accroding to older ans younger bed.
6. faults are oriented northwest-southeast on this map are mainly normal faults as horst and graben are distinguishable in the map,
7. anticline folds (trace of axial surface) occurs along Brewster Creek on the western part of the map,
8. plunging direction is south west in the structure in question 7
10. overturned anticline ad syncline type o structure occurs on Cascade Mountain (in the northeast corner of the map) just northeast of the M in MOUNTAIN.
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