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Exercise 2: (LO12) The following stratigraphic columns start during Cretaceous time and end during Paleogene (Tertiary) time based on the fossils present in the sediments. A comet impacted the Earth and caused a mass extinction that caused extinction of the dinosaurs (except those that evolved into birds) along with many other organisms. Use magnetostratigraphy and event stratigraphy to correlate these five stratigraphic columns by drawing lines between them. You should have 2 timelines between each of the columns and a third timeline between the Gulf of Mexico, Tethys, and Pacific columns. (The right margins of the column represent approximate grain size. These columns came from a published paper, which did not provide details on the grain sizes.) Magnetic Polarity 150- Spain 125- m Tertiary Fossils Magnetic Polarity Gulf of Mexico Cretaceous Fossils 0m- Tethys Ocean Pacific Ocean Clay Marl Sand Shale PO Marl/shale clasts 5 Bioturbation Spherules from impact (Marl = a mix of clay-sized clay mineral grains and clay-sized carbonate mineral grains. The grey "Clay" is clay-sized clay mineral grains that were deposited immediately after the impact. don't worry about the sedimentary structures in the column on the left; they represent shallow marine storm and tidal deposits.) Bonus Question: Of the five stratigraphic columns above, which had the highest sedimentation rate and which had the lowest sedimentation rate? How can you tell?

Exercise 2: (LO12) The following stratigraphic columns start during Cretaceous time and end during Paleogene (Tertiary) time based on the fossils present in the sediments. A comet impacted the Earth and caused a mass extinction that caused extinction of the dinosaurs (except those that evolved into birds) along with many other organisms. Use magnetostratigraphy and event stratigraphy to correlate these five stratigraphic columns by drawing lines between them. You should have 2 timelines between each of the columns and a third timeline between the Gulf of Mexico, Tethys, and Pacific columns. (The right margins of the column represent approximate grain size. These columns came from a published paper, which did not provide details on the grain sizes.) Magnetic Polarity 150- Spain 125- m Tertiary Fossils Magnetic Polarity Gulf of Mexico Cretaceous Fossils 0m- Tethys Ocean Pacific Ocean Clay Marl Sand Shale PO Marl/shale clasts 5 Bioturbation Spherules from impact (Marl = a mix of clay-sized clay mineral grains and clay-sized carbonate mineral grains. The grey "Clay" is clay-sized clay mineral grains that were deposited immediately after the impact. don't worry about the sedimentary structures in the column on the left; they represent shallow marine storm and tidal deposits.) Bonus Question: Of the five stratigraphic columns above, which had the highest sedimentation rate and which had the lowest sedimentation rate? How can you tell?

Applications and Investigations in Earth Science (9th Edition)
Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Chapter1: The Study Of Minerals
Section: Chapter Questions
Problem 1LR
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Exercise 2: (LO12) The following stratigraphic columns start during Cretaceous time and end during Paleogene (Tertiary) time based on the fossils present in the sediments. A comet impacted the Earth and caused a mass extinction that caused extinction of the dinosaurs (except those that evolved into birds) along with many other organisms. Use magnetostratigraphy and event stratigraphy to correlate these five stratigraphic columns by drawing lines between them. You should have 2 timelines between each of the columns and a third timeline between the Gulf of Mexico, Tethys, and Pacific columns. (The right margins of the column represent approximate grain size. These columns came from a published paper, which did not provide details on the grain sizes.) Magnetic Polarity 150- Spain 125- m Tertiary Fossils Magnetic Polarity Gulf of Mexico Cretaceous Fossils 0m- Tethys Ocean Pacific Ocean Clay Marl Sand Shale PO Marl/shale clasts 5 Bioturbation Spherules from impact (Marl = a mix of clay-sized clay mineral grains and clay-sized carbonate mineral grains. The grey "Clay" is clay-sized clay mineral grains that were deposited immediately after the impact. don't worry about the sedimentary structures in the column on the left; they represent shallow marine storm and tidal deposits.) Bonus Question: Of the five stratigraphic columns above, which had the highest sedimentation rate and which had the lowest sedimentation rate? How can you tell?
Transcribed Image Text:Exercise 2: (LO12) The following stratigraphic columns start during Cretaceous time and end during Paleogene (Tertiary) time based on the fossils present in the sediments. A comet impacted the Earth and caused a mass extinction that caused extinction of the dinosaurs (except those that evolved into birds) along with many other organisms. Use magnetostratigraphy and event stratigraphy to correlate these five stratigraphic columns by drawing lines between them. You should have 2 timelines between each of the columns and a third timeline between the Gulf of Mexico, Tethys, and Pacific columns. (The right margins of the column represent approximate grain size. These columns came from a published paper, which did not provide details on the grain sizes.) Magnetic Polarity 150- Spain 125- m Tertiary Fossils Magnetic Polarity Gulf of Mexico Cretaceous Fossils 0m- Tethys Ocean Pacific Ocean Clay Marl Sand Shale PO Marl/shale clasts 5 Bioturbation Spherules from impact (Marl = a mix of clay-sized clay mineral grains and clay-sized carbonate mineral grains. The grey "Clay" is clay-sized clay mineral grains that were deposited immediately after the impact. don't worry about the sedimentary structures in the column on the left; they represent shallow marine storm and tidal deposits.) Bonus Question: Of the five stratigraphic columns above, which had the highest sedimentation rate and which had the lowest sedimentation rate? How can you tell?
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