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Electronic course reserves, or "e-Reserves," are articles and book chapters that are available online through the University Libraries.

If you have any questions about the lesson materials or assignments, post them to our online discussion forum (not e-mail). While you are there, feel free to post your own responses if you, too, are able to help out a classmate!

Relative dating does not provide actual numerical dates for the rocks.

earth science relative dating activity-25earth science relative dating activity-32

Beaufort Group (Permian-Triassic), Karoo Basin, South Africa.Similar ripples occur in tidal environments and correct interpretation requires that the local facies content be taken into account.Before you begin this activity, read the book chapter listed below, which is available online through Library Reserves.In this lab, you will apply many of these laws and principles to determine the relative sequence of geologic events that created a particular set of rock layers and intrusions.By doing this, you will unravel the geologic history recorded in the rock record, just as geologists did hundreds of years ago, and still do today. An earlier current-formed ripple set (at bottom of slide) was later modified by a second ripple train migrating at right angles to the first.

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Records, 1946-1969 (Box 421, 0.25 linear feet); Series 12: Germain Seligman's Personal Papers, 1882, circa 1905-1984, undated (Boxes 422-459, OV 460, 17.1 linear feet)The Jacques Seligmann & Co., Inc., records measure approximately 203.1 linear feet and date from between 19, with bulk dates of 1913-1974.

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