Earthquakes Essay by academic

An overview of the study of earthquakes produced by the San Andreas Fault in Southern California.
# 46124 | 1,628 words | 1 source | MLA | 2002 | US
Published on Dec 11, 2003 in Geology and Geophysics (General)

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This paper examines how earthquakes produced by the San Andreas Fault in Southern California have been a topic of interest for many researchers and how limitations on conventional radiocarbon analysis impeded the research and were a major barrier to progress in paleoseismology. It looks at how, recently, newer technology and larger samples have enabled researchers to date the quakes with greater precision. It review the article, "A More Precise Chronology of Earthquakes Produced by the San Andreas Fault in Southern California" (Sieh, et al, 1989), which shows the results of one such study and outlines the major strengths and weaknesses of the latest measurements.

From the Paper:

"This method is much more accurate than dates previously given. Previously, typical small proportion counters and accelerator mass spectrometric analysis were used, which produced a higher year error possibility. Since the methods for radiocarbon analysis have improved with this use of counters with low background noise, the dates given in this paper are much more precise. In addition, the most recent study used larger sample sizes, longer counting time, and a more precise way to convert radiocarbon age to calendar dates. Finally, better controls were in place, as were better statistical techniques for sample extraction (Sieh, et al, 1989)."

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