I. Principles of stratigraphy: Given the cross-section of rock strata exposed in a canyon wall below, outline the history of the area. The intrusive diabase rock gives a Uranium-lead date of 204 million years. Using the principles of stratigraphy you have seen in class, develop a narrative of the history of the sequence of strata and fossils exposed in a ravine you seen in this hypothetical cross-section exposed in a ravine in central Germany. Develop the narrative as a series of events; 1, 2, 3 ... Describe the environments in which the strata were deposited. Stating the various basic stratigraphic principles you used and the geological periods to which the rock unit belongs. You should give the age of the rock units as best you can in millions of years and its relative age to the epoch-level (Late Triassic, Early Cretaceous, etc.).

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
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I. Principles of stratigraphy:
Given the cross-section of rock strata exposed in a canyon wall below, outline the history of the
area. The intrusive diabase rock gives a Uranium-lead date of 204 million years.
Using the principles of stratigraphy you have seen in class, develop a narrative of the
history of the sequence of strata and fossils exposed in a ravine you seen in this
hypothetical cross-section exposed in a ravine in central Germany. Develop the narrative as
a series of events; 1, 2, 3 ...
Describe the environments in which the strata were deposited.
Stating the various basic stratigraphic principles you used and the geological periods to
which the rock unit belongs. You should give the age of the rock units as best you can in
millions of years and its relative age to the epoch-level (Late Triassic, Early Cretaceous,
etc.).
Try to give a sense of the uncertainties in your age assessments and environmental
interpretations.
Limestone with mollusks
Igneous rock with
Uranium-lead age of
204 Million years
Ammonite
Mortoniceras sp.
Plateosaurus englehardti
Mudstone
Sandstone with plant
with
fossil
fossils
roots
Claystone
Olenoides
nevadensis
Transcribed Image Text:I. Principles of stratigraphy: Given the cross-section of rock strata exposed in a canyon wall below, outline the history of the area. The intrusive diabase rock gives a Uranium-lead date of 204 million years. Using the principles of stratigraphy you have seen in class, develop a narrative of the history of the sequence of strata and fossils exposed in a ravine you seen in this hypothetical cross-section exposed in a ravine in central Germany. Develop the narrative as a series of events; 1, 2, 3 ... Describe the environments in which the strata were deposited. Stating the various basic stratigraphic principles you used and the geological periods to which the rock unit belongs. You should give the age of the rock units as best you can in millions of years and its relative age to the epoch-level (Late Triassic, Early Cretaceous, etc.). Try to give a sense of the uncertainties in your age assessments and environmental interpretations. Limestone with mollusks Igneous rock with Uranium-lead age of 204 Million years Ammonite Mortoniceras sp. Plateosaurus englehardti Mudstone Sandstone with plant with fossil fossils roots Claystone Olenoides nevadensis
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