Unit 3 Sculpting Earth's Topography_ Lab Practical on Drainage Patterns (2 points)_ GPH 111_ Intro t

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2/24/24, 6:31 PM Unit 3 Sculpting Earth's Topography: Lab Practical on Drainage Patterns (2 points): GPH 111: Intro to Physical Geography (2024 Spring - A) https://canvas.asu.edu/courses/172892/quizzes/1298439 1/5 Unit 3 Sculpting Earth's Topography: Lab Practical on Drainage Patterns (2 points) Due No due date Points 2 Questions 4 Time Limit None Instructions In this lab practical, you examine aerial photographs (via Google Maps) and determine the drainage pattern that you are seeing. The following information is a review and will be helpful in answering the questions. If the links have gone bad, please let me know, but you can find similar imagery by going to images.google.com and searching for drainage patterns. The general topic of drainage patterns is part of the hydrology basics (http://www.asu.edu/courses/gph111/BreezeLectures/28Hydrology/28PublishHydrology/index.htm) lecture (http://www.asu.edu/courses/gph111/BreezeLectures/28Hydrology/28PublishHydrology/index.htm) for GPH 111 (towards the very end of the lecture). The pattern of streams within a drainage basin tends to be inﬂuenced the most by the geology. Here are some intuitive diagrams where you can see different types of drainage patterns:

2/24/24, 6:31 PM Unit 3 Sculpting Earth's Topography: Lab Practical on Drainage Patterns (2 points): GPH 111: Intro to Physical Geography (2024 Spring - A) https://canvas.asu.edu/courses/172892/quizzes/1298439 2/5 Attempt History Attempt Time Score LATEST Attempt 1 4 minutes 2 out of 2 Score for this quiz: 2 out of 2 Submitted Feb 24 at 6:31pm This attempt took 4 minutes.  Question 1 0.5 / 0.5 pts trellis radial parallel Correct! rectangular The pattern of a drainage basin reflects the underlying rock types and rock structure. If you look at this diagram: This table from Salem State pretty typical of the introductory information you can find on drainage patterns. Pattern Description Controlling influences dendritic random, tree-like branching pattern flat-lying sedimentary rock, thick sediment, or homogeneous rock uninterupted by fractures trellis long (subsequent) streams follow strike valleys fed by short tributaries decending from adjacent obsequent and dip slopes developed in differentially eroded fold belts containing lithologies of varying strengths multibasinal stream flow towards an interior basin Region of interior drainage such as the Basin and Range. Characteristic of an arid climate. centripetal streams flow into a central location and disappear underground Karst region formed by the solution of soluble rock (typically limestone) and subterranian drainage deranged interrupted by numerous lakes and wetlands Common in glaciated regions where bedrock was differentially scoured and glacial sediments were dumpled in pre-existing drainage networks annular accurate subsequent stream with short tributaries eroded dome or basin containing rocks of varying resistances radial tributaries radiate away from a central region central highland such as a volcano or eroding pluton surrounded by sedimentary rock rectangular tributaries make right angle bends jointed or faulted bedrock barbed one or more tributaries enter at an angle >90% captured drainage In the Colorado Plateau, this Google Maps aerial planimetric (https://www.google.com/maps/place/Upheaval+Dome/@38.1295827,-109.8833826,452m/data=!3m1!1e3!4m5!3m4!1s0x874817c72ac5eb1f:0x5e816467beb2cdc8!8m2!3d38.4364329!4d- 109.9318224) (looking straight down) view, you are looking at sandstone. Between the sandstone hills are joints (fractures) in the sandstone. Joints are places where the rock is more decayed, and hence water flowing in washes is more able to eroded down into the joints. What is the best answer for the pattern of this drainage basin?

2/24/24, 6:31 PM Unit 3 Sculpting Earth's Topography: Lab Practical on Drainage Patterns (2 points): GPH 111: Intro to Physical Geography (2024 Spring - A) https://canvas.asu.edu/courses/172892/quizzes/1298439 3/5 I hope that you would see that this scene best matches rectangular. Intersecting joints like those seen here typically produce a rectangular pattern.  Question 2 0.5 / 0.5 pts parallel trellis radial Correct! dendritic The tributaries that are eroding into the uplands south of the Balsas River in Brazil look like the branching of a deciduous tree. This pattern is called dendritic.  Question 3 0.5 / 0.5 pts Correct! dendritic parallel trellis radial The pattern of a drainage basin reflects the underlying rock types and rock structure. If you look at this diagram: Please examine this image (https://earthobservatory.nasa.gov/images/85354/musa-bay-iran) of Musa Bay, Iran, acquired by NASA. Look at the northern part of the image and focus on Musa Bay and the pattern of the branching tributaries. What drainage pattern is the best choice for the pattern that you see? In Nebraska, this Google Maps aerial planimetric (https://www.google.com/maps/@42.7921277,-99.9038074,6744m/data=!3m1!1e3) (looking straight down) view, you are looking at the drainage basin of Cub Creek. All of the different tributaries flow into the scenic Niobrara River. What is the best answer for the pattern of this drainage basin?

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