What does the evidence show?
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Name ________________________ Sci Sec ______ Date __________ Finding The Crater Purpose: Your job is to find the location of the impact crater responsible for the KT Extinction by using the evidence presented. Procedure: Carefully read through the evidence presented for each location. Follow each step carefully. Complete the chart for each location. At the conclusion of each station, determine how far this location is from the impact crater. Location #1 El Papalote La Popa Basin Mexico Photographic Evidence What is the evidence? 1. What are clasts? 2. What do you see in Photos A and B? What does the evidence show? 1. What do scientists believe the clasts are evidence of? Stratigraphic Evidence Layer Total Thickness of Layer Distance from the crater Photo A Photo B Total How far is the location from the KT Impact site? _________________ Name ________________________ Sci Sec ______ Date __________ Finding The Crater Purpose: Your job is to find the location of the impact crater responsible for the KT Extinction by using the evidence presented. Procedure: Carefully read through the evidence presented for each location. Follow each step carefully. Complete the chart for each location. At the conclusion of each station, determine how far this location is from the impact Location #2 Dogie Creek, Wyoming Photographic Evidence What is the evidence? 1. What are the bodies shown in Photograph A? 2. What is being shown in Photograph B? What does the evidence show? 1. How do scientists believe these bodies in Photo A relate to an asteroid impact? 2. What do scientists believe caused the quartz to have this appearance? Stratigraphic Evidence Layer Total Thickness of Layer Distance from the crater Layer A Layer B Total How far is the location from the KT Impact site? _________________ Name ________________________ Sci Sec ______ Date __________ Finding The Crater Purpose: Your job is to find the location of the impact crater responsible for the KT Extinction by using the evidence presented. Procedure: Carefully read through the evidence presented for each location. Follow each step carefully. Complete the chart for each location. At the conclusion of each station, determine how far this location is from the impact crater. Location #3 Antioch Church Core – Alabama Photographic Evidence What is the evidence? 1. What are the round structures in photo B? What does the evidence show? 1. How do scientists believe these round structures relate to an asteroid impact? Stratigraphic Evidence Layer Depth Below the Surface Total Thickness of Layer Distance from the crater Photo B Pyrotized Layer Total How far is the location from the KT Impact site? _________________ Name ________________________ Sci Sec ______ Date __________ Finding The Crater Purpose: Your job is to find the location of the impact crater responsible for the KT Extinction by using the evidence presented. Procedure: Carefully read through the evidence presented for each location. Follow each step carefully. Complete the chart for each location. At the conclusion of each station, determine how far this location is from the impact crater. Location #4 Barranco del Gredero Section What is the evidence? Caravanca Spain How many species of forams are present during the Cretaceous Period? (below 0-KT on the graph) How many species of forams survived the impact? What does the evidence show? Where on the graph does the evolution of new species forams begin? If forams are the basis of the food chains in the ocean, what important affect did the asteroid impact have on life in the oceans and life on the surface of the Earth? Stratigraphic Evidence Layer Total Thickness of Layer Distance from the crater Iridium Rich Clay How far is the location from the KT Impact site? _________________ Name ________________________ Sci Sec ______ Date __________ Finding The Crater Purpose: Your job is to find the location of the impact crater responsible for the KT Extinction by using the evidence presented. Procedure: Carefully read through the evidence presented for each location. Follow each step carefully. Complete the chart for each location. At the conclusion of each station, determine how far this location is from the impact crater. Location #5 Albion Island Belize Photographic Evidence What is the evidence? 1. What do you see in Figure 1? 2. What do you see in Figure 2? 3. What do you see in Figure 3? What does the evidence mean? 1. What could have deposited a boulder of the size found in Figure 1? 2. How do scientists believe these round structures in Figure 2 relate to an asteroid impact? 3. What do scientists believe caused the quartz in Figure 3 to have this appearance? 4. What do Figure 1,2,and 3 suggest is the source of energy that produced the Albion Island Formation? Stratigraphic evidence: Total Thickness of Layer Layer Distance from the crater Clay Dolomite Clasts How far is the location from the KT Impact site? _________________ Name ________________________ Sci Sec ______ Date __________ Finding The Crater Purpose: Your job is to find the location of the impact crater responsible for the KT Extinction by using the evidence presented. Procedure: Carefully read through the evidence presented for each location. Follow each step carefully. Complete the chart for each location. At the conclusion of each station, determine how far this location is from the impact crater. Location #6 What is the evidence? Darting Minnow Creek Brazos River Texas 1.What type of rock is in the layer directly above the KT Boundary? 2. What type of rock is in the layer above the Mudstone clasts and Sandstone? 3. At what depth does the rock become mudstone again? What does the evidence show? 1. What force could rip up the mudstone layer below? 2. What kind of event could rip up the seafloor and pull seashells from the shore, mix them with sand, and change the rock to sandstone? 3. Why does the rock return to mudstone? Layer Total Thickness of Layer Distance from the crater Tsunami deposited material How far is the location from the KT Impact site? _________________ Name ________________________ Sci Sec ______ Date __________ Finding The Crater Complete the chart below using evidence compiled in class. Location Latitude Longitude La Popa, Mexico 26 N 100W Dogie Creek, Wyoming 43N 104W Antioch Church, Alabama 31N 86W Caravanca, Spain 38N 1W Albion Island, Belize 18N 88W Darting Minnow Creek Texas 31N 95W Approximate Distance to Crater To find the crater: 1. Plot the locations of the evidence on the map 2. Estimate where you think the crater is located. Place an X on the map. 3. In the space below, write an explanation of how this data supports your estimated location of the crater. In other words, how do you know that you have found the crater.
