Lab 6 movies – watch these 8 short video clips- an intro and then one on each field stop showing different depositional environments close to SLC. You need to watch these to fill out the summary tables for Lab 6.
Here you can find the videos:
https://drive.google.com/file/d/1J54c8m_EF6aYdA3xd…
1
Geo 3040 Fall 2020
Due: Oct. 7, 2020, 2pm, submit as pdf in Canvas
Lab 6 Virtual field trip: Wasatch front to Price UT 60 pts
Name ________________________________
Goal: To see examples of a variety of structures and facies for different depositional environments, and summarize them in a table. Type/Fill in table of
pertinent features for each stop (may spill into several pages). This can be your reference guide for a time when you can travel.
Grading will be a function of how your answers indicate the assimilation of your knowledge from watching the videos. There are some parts already filled in to
help you get started but you may need to add more based on the videos. There are some short examples labeled “Extra” of other formations nearby on the
route to show how you might fill these in.
Part I – SLC to Antelope Is (oldest to youngest) 15 pts
STOP Age Unit(s)
Overall
Lithofacies
Depo Envt
1
PC
Big
Tidal
Cottonwood Estuary
Fm
2
Tr
Ankareh &
Gartra Grit
3
Pe
Lake
Bonneville,
H
Extra
J
Great Salt
Lake
Nugget Ss
Eolian
Pink cross-bedded ss
Part II – SLC to Price (landward to seaward) 30 pts
STOP Age Formation(s) Overall Depo
Lithofacies
Envt
4
K
North Horn
Cgl
5
Pg
Colton Fm
6
K
Aberdeen
Wave-dom.
1.Horiz laminated ss
Mbr,
Delta/shoreline
2.TCS med ss
Blackhawk
3. HCS fine ss
Fm
Sub environment
Sed Structures
Other notes
Dunes
Large planar cross
bedding
Red Butte &
Parley’s Canyon
Sub environment
Sed Structures
1.Beach
2.Upper shoreface
3 Lower shoreface
1. Some roots, logs
2. Ophiomorpha
burrows
3. Thalassinoides
burrows
Other notes
2
6
K
7
K
Extra
E
Upper
member,
Blackhawk
Fm
Panther
Tongue, Star
Point Fm
Wave-dom.
Delta/shoreline
Green River
Fm
Lacustrine
Coastal Plain
1. Coarse grained
cross stratified ss
1. White marl
2. Green shale
1.Distributary Mouth
Bar
2. Delta Front
3. Prodelta
1. Lake beds – dry
season
2. Lake basin
1. low angle
1. plant fossils
2. fissile
Some bird tracks,
no fish bearing
facies here
For geologic ages, see standard abbreviations.
Units: Mbr = Member, Fm = Formation
Envt: Environment, dom. = dominated
Lithofacies : TCS= Trough cross stratified, HCS = Hummocky Cross stratified, ss = sandstone
Part III. Synthesize 15 pts (~ 10 for content, 5 for grammar)
Write a well-crafted paragraph- 150 words max (without referring to Stop numbers) about how the how the formations (thought slightly different ages)
representing different depositional environments exhibit typical proximal to distal deposits of the Western Interior. In other words, this should be
understandable to your boss (an engineer) who wants to read your paragraph as an introduction to quickly understand why geologists would be interested in
these roadcuts and exposures and the range of what they show.