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    <subfield code="a">Marr, J. E.</subfield>
    <subfield code="q">(John Edward),</subfield>
    <subfield code="d">1857-1933</subfield>
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    <subfield code="a">The Principles of Stratigraphical Geology</subfield>
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    <subfield code="c">2013</subfield>
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    <subfield code="a">1 online resource :</subfield>
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    <subfield code="a">Release date is 2013-10-16</subfield>
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    <subfield code="a">Produced by Chris Curnow, Tom Cosmas and the Online
Distributed Proofreading Team at http://www.pgdp.net (This
file was produced from images generously made available
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    <subfield code="a">"The Principles of Stratigraphical Geology" by J. E. Marr is a scientific publication written in the late 19th century. This work is aimed at students of geology, focusing on the methods and scope of stratigraphical geology, particularly the relationships and chronological ordering of sedimentary rock layers. It highlights the challenges faced by geologists in reconstructing Earth's geological history from imperfect records.  The opening of the book introduces the concept of stratigraphy as a way to document Earth's history by identifying the sequence of geological events through rock layers' formation and organization. Marr emphasizes the complexities and interconnectedness of geological periods, rejecting outdated notions of catastrophic resets in Earth's history. He outlines the goals of stratigraphical geology, which are to establish the order of strata and analyze the conditions under which they were formed. This foundational introduction sets the stage for discussing various geological principles and methods in later chapters. (This is an automatically generated summary.)</subfield>
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    <subfield code="a">Geology, Stratigraphic</subfield>
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