1. What does the pink line in the southeast corner of the map represent? How do you know?
2. Are there any unconformities on this map? If so, what geologic units border them, and what time span(s) do they cover?
3. The topography of almost every region reflects an adjustment between the dominant surficial processes and the underlying lithology. Knowing this, describe the outcrop pattern of the Morrison Formation compared to the Plainview sandstone Member (Hint: look at the spacing of the contour lines). What do you think controls the way these two rock bodies appear in outcrop? 

Transcribed Image Text:

Plo Yksi 31 fio Kspl Jm Ос Kspl Jm Jusj T.Plu PI Pil Ply GN 1.00 18 MILS MN Coluvium and alluvium (Quaternary) Plainview sandstone Member (Lower Cretaceous) Morrison Formation (Upper Jurassic) claystone and siltstone Sundance and Jelm Formation (Upper Triassic) sandstone Upper part (Lower Triassic and Upper Permian) siltstone and sandstone Forelle limestone Member (Upper Permian) Lower part (Upper Permian) shale Lyons Sandstone (Lower Permian) 5 89 MILS Figure 12. Geologic Map #2. Note that although it appears different, the Kspl member extends beyond the hachures up to the northern Jm formation border. Produced by the U. S. Geological Survey. Plo Yksi 31 fio Kspl Jm Ос Kspl Jm Jusj T.Plu PI Pil Ply GN 1.00 18 MILS MN Coluvium and alluvium (Quaternary) Plainview sandstone Member (Lower Cretaceous) Morrison Formation (Upper Jurassic) claystone and siltstone Sundance and Jelm Formation (Upper Triassic) sandstone Upper part (Lower Triassic and Upper Permian) siltstone and sandstone Forelle limestone Member (Upper Permian) Lower part (Upper Permian) shale Lyons Sandstone (Lower Permian) 5 89 MILS Figure 12. Geologic Map #2. Note that although it appears different, the Kspl member extends beyond the hachures up to the northern Jm formation border. Produced by the U. S. Geological Survey.

Answer rating: 100% (QA)

ANSWER i The pink lines on the southeastern part of the map represent a non plunging syncline fold a... View the full answer