1. (a) How far offshore is the barrier island at the\"P\" in the words \"Padre I
ID: 284871 • Letter: 1
Question
1. (a) How far offshore is the barrier island at the"P" in the words "Padre Island"? ______miles
b) How wide is the island at this point? _______miles
c) What is the highest elevation shown on Padre Island? ______feet
2. (a)On which side of Padre Island (east or west) does deposition seem most prominent?
b) suggest a reason why.
3.(a) What is the most likely origin of Baffin Bay?
b) What is the evidence for this?
4.(a) Does it appear that "Laguna Madre" (between Padre Island and the mainland) is filling with sediment?
b) What is the evidence of this?
The P is at the right top of the map where it says "Padre island"
T-16 Corpus Christi, TX aguna is Pits sland 1:250,000 (50')N NUECES COUNTY KLEBERG COUNTY Alazan Mor DAGGER Rivera Beach Kleberg Point KLEBERE COUNTY 8 Pass Shiltine ,Caballos and dines Pone deExplanation / Answer
You need to verify these with the actual map in your hand. The images may have distorted the scale. However, I will provide the answers based on observation in the image uploaded. Using the same method verify and modify the answer as per the original map.
1. (a) How far offshore is the barrier island at the"P" in the words "Padre Island"? ______miles
In the uploaded image, it looks like the letter P is 0.5 cm away from the shore. Use a ruler in the or original map to verify this length.
Since the map is of scale, 1:250,000, 0.5cm is,
0.5*250000 = 125000 cm = 1250 m = 1.25 Km = 0.78 miles.
b) How wide is the island at this point? _______miles
At this point the width of the island seem to be 0.9 cm. Use a ruler in the or original map to verify this length.
Since the map is of scale, 1:250,000, 0.9cm is,
0.9*250000 = 225000 cm = 2250 m = 2.25 Km = 1.4 miles.
c) What is the highest elevation shown on Padre Island? looks like 10 feet. Verify on the original map.
2. (a)On which side of Padre Island (east or west) does deposition seem most prominent?
On the West side, indicated by the darker blue color.
b) suggest a reason why.
It happens because the sediments are carried by the inland rivers meeting the ocean. These rivers hit the Padre island first before slowing down on their path to reach the ocean. This slow down at the point where river water reaches the island causes the sediments to settle. Also, the surface erosion from the barrier island is another major cause.
3.(a) What is the most likely origin of Baffin Bay?
The Baffin Bay is formed because of the sea level rise that might have lead to the ocean water reaching that point. The formation of Padre island later might have resulted in the cutting off of the cay from the gulf.
b) What is the evidence for this?
The hypersaline water and the pattern that it makes on the land are the evidence for this.
4.(a) Does it appear that "Laguna Madre" (between Padre Island and the mainland) is filling with sediment?
Yes, the dark blue representation on the map suggests that the Laguna Madre is filling with sediments.
b) What is the evidence of this?
The major evidence for this is the satellite imaging and mapping that represents the accumulation of large volume of sediments in this lagoon. Also, the increase of water level can serve as another evidence. The map also represents this. The likely causes are the surface erosion from the barrier island and the sediments carried by the inland waters.
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