9. As sea level changed, during the deposition of the Tapeats Sandslone cand werlying rock units), was the sea mainly to

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9 As Sea Level Changed During The Deposition Of The Tapeats Sandslone Cand Werlying Rock Units Was The Sea Mainly To 1 (31.71 KiB) Viewed 46 times

9 As Sea Level Changed During The Deposition Of The Tapeats Sandslone Cand Werlying Rock Units Was The Sea Mainly To 2 (31.71 KiB) Viewed 46 times

9 As Sea Level Changed During The Deposition Of The Tapeats Sandslone Cand Werlying Rock Units Was The Sea Mainly To 3 (23.67 KiB) Viewed 46 times

9 As Sea Level Changed During The Deposition Of The Tapeats Sandslone Cand Werlying Rock Units Was The Sea Mainly To 4 (16.04 KiB) Viewed 46 times

9 As Sea Level Changed During The Deposition Of The Tapeats Sandslone Cand Werlying Rock Units Was The Sea Mainly To 5 (34.32 KiB) Viewed 46 times

9 As Sea Level Changed During The Deposition Of The Tapeats Sandslone Cand Werlying Rock Units Was The Sea Mainly To 6 (32.46 KiB) Viewed 46 times

9. As sea level changed, during the deposition of the Tapeats Sandslone cand werlying rock units), was the sea mainly to the east of this area or to the west of this area? Lithologic Correlation In this next jart, you will practice lithologeic correlation. You need to ase the following: - Ruler - Pencil wich erioer (no pen) - Colored pencils (optional) To cerrelate the mections you will we a pencil and a ruler to drew lints connecting geologic coetacts between beds as illusarated in Figure 7.16. This is not a matching activity, so do not draw lines to the midpoints of the units. Draw yoar liner of the cuntacts. Use a ruler and be as neat as possible. Note that each verrical columa is a stratigraphic section. Each different rock type can he reranded as a hed or facies. 1. Correlate the three stratigraphic sections below. Draw bnes between the three stratigraphic sections below to connect the geologic contacts between beds. a. How many beds can be correlated across all three sectioes? b. How thick is the thichest satigraphic section (entire colams of rocks)? (Note that the seale goes from 0 to 70 melers. meters c. A bed of coal (black) is present in sections B and C. Dran where it would appear in the blastk arra of section A. How deep would you have fe drill in section A (starting at the top of the section, up near the letter A) to reach the buried caal seam? meters d. What type of unconformity is present? e. Above the unconformity, is there a transgressive sequence or a regnessive sequeace?
174 Stratigraphy and Lithologic Correlation 2. Correlate the two suatigrapeic sectices belwm, and answer the quections. Draw lines to encrelate the two sectioes belom. Use a raler to coenect the coetacts between focl typer. 3. Which sectice (A or B) coetaies an menofornity? h. I.ahel the position of the uscueformity with an arruw and the wotd "रeconfermity" c. What type of enconformity is in? d. Which mek typer are missing thom thut section hecause of the unconformity?
3. List the rock types in section λ. above, in oeder from yout gest to odent.
c. In which sedimeatary environmentis were the dark grav to black sodimeatarv rocks of the Purtanc Formation most hikely dcposised? d. In which sedimentary eevitcernentis) were the lighter-culcred snis of the Puriane Formation mont likely deponited? e. In which sedimeatary eevitonmenis(s) werc sedimacatary rocks of the Rockwell Farmation mont hikely deporated? 3. Correlate the three sratigraphic sections below and answer the questicas: a. Use a ruler and pericil drun lines to conclune the three statigraphic sextions. Conmact the conticts between the beds. Noee that the umits diller in thicknes in cach setiint. b. What happens to the conglomerale in settion C? Why is it not poeseat in section A of 8 ? c. Why docr the thichineos of the sandutone change foom section A to section HI? 4. In which dientine ( wes se eas) was the land? e. In which direction (west et cau) was deeper waler? C. Label the right side of sectioe C to illustrate a tratherevsion, al tegressiont, abd the time of sca level low stand. 2. Label the pinch-oet with an arrow and the term "pinch-ost.
4. Curtelate the thrce sracigraphic sccticas bclow and answet the questions. a. Use a tuler to draw lines to cuerclale the thece seratigraphic soctintes. Connevt the contacts herwect the bedi. Nose that wome of the units diller in thiclatrs in cach section. h. Lahel the left side of sertion A to illastrate a transgression, a regression, and the tirene of sca level high stand. c. These sediaseats were deporited in an ancient sea. Baked on the ruck. types, which facies (i,e, rock type) was dcpovited ncancst to the mainland? d. Which facies (i.c., tock type) was depositcd farthes from the land? E. Why is the limevone abveat froen section C ? I. In which direction (ead es west) was the land" g. Explain your reaseing fer yoar answer to question f.