5-8 Points Includes few of the required components, as specified in the assignment. 9-12 Points Major errors or omissions in demonstration of knowledge. If a half-life is 800 million years, how old is that rock? In number 1, at the beginning of the exercise, Layer F was dated at 260 million years old. The image to the left show a series of sections containing various fossils. 17-20 Points Content Demonstrates strong or adequate knowledge of the materials; correctly represents knowledge from the readings and sources.
11-15 Points Major errors or omissions in analysis and interpretation in the short answer portion of the assignment.
5-8 Points Fails to demonstrate knowledge of the materials.
A geologic map or report typically is only a summary of investigations that frequently involve the collecting and processing of hundreds of rock samples, followed by the evaluation and interpretation of data from a variety of analytical techniques.
A relative age is the age of a fossil organism, rock, or geologic feature or event defined relative to other organisms, rocks, or features or events rather than in terms of years.
Biostratigraphy is the science of correlation of sedimentary units base on the identifiable fossils they contain.
Paleontologists examine fossils of all kinds, but micropaleontology (the study of microscopic organisms) is perhaps the most useful method of dating because the remains of tiny organisms tend to be better preserved, more widely distributed, and may provide more precise age determinations than larger shells or bone material.
Relatively young deposits can be sometimes dated using tree rings, varved-lake sediments, coral growth patterns, and other methods.
Paleontology is the study of life in past geologic periods (fossil plants and animals), incorporating knowledge of an organism's phylogeny, relationships to existing organisms, and correlation to an established chronology of Earth History.
Paleontology is limited to the study of sedimentary deposits where fossils are preserved, but can be used in establish relative ages of nearby igneous intrusion, faults, and other geologic features.
With the cumulative experience of centuries of paleontological research, the chronology of many fossil species are well established in context of both geologic time and distribution.
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