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Marker horizon
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<h2 id="see-also">See also</h2> <ul><li><a href="/facts/Radiometric_dating/bDFjdPqV">Radiometric dating</a></li> <li><a href="/facts/Relative_dating/PyvmNRU6">Relative dating</a></li> <li><a href="/facts/Stratigraphy/o3J6Ij3R">Stratigraphy</a></li></ul> <h2 id="further-reading">Further reading</h2> <ul><li>Truswell, J. F. (1970). <i>Historical Geology of South Africa</i>. Cape Town: Purnell. <a href="/facts/ISBN_(identifier)/15AdSPa9">ISBN</a> 0-360-00104-1.</li></ul> <h2 id="external-links">External links</h2> <ul><li><a href="https://books.google.com/books?id=l03YnbnoxzUC&dq=Marker+horizons+stratigraphic+units&pg=PA15">International Stratigraphic Guide - Geological Society of America (1994) - Amos Salvador (editor)</a></li></ul> <h2 id="references">References</h2> <ol> <li id="fn:1"><p>H.V. Cabadas-Báez, S. Sedov, S. Jiménez-Álvarez, D. Leonard, B. Lailson-Tinoco, R. García-Moll, I. Ancona-Aragón, L. Hernández. (2018). "Soils as a Source of Raw Materials for Ancient Ceramic production in the Maya region of Mexico: Micromorphological insight" (PDF). Boletín de la Sociedad Geológica Mexicana. 70: 21–48. doi:10.18268/BSGM2018v70n1a2.{{cite journal}}: CS1 maint: multiple names: authors list (link) <a href="https://www.redalyc.org/journal/943/94362579003/94362579003.pdf" target="_blank">https://www.redalyc.org/journal/943/94362579003/94362579003.pdf</a> <a href="#fnref:1" class="footnote-back-ref">↩</a></p></li> <li id="fn:2"><p>Neuendorf, K.K.E., J.P. Mehl, Jr., and J.A. Jackson, J.A., eds. (2005) Glossary of Geology (5th ed.). Alexandria, Virginia, American Geological Institute. 779 pp. ISBN 0-922152-76-4 <a href="/wiki/ISBN_(identifier)" target="_blank">/wiki/ISBN_(identifier)</a> <a href="#fnref:2" class="footnote-back-ref">↩</a></p></li> <li id="fn:3"><p>Westgate, J. A.; Gorton, M. P. (1981). "Correlation Techniques in Tephra Studies". In Self, S.; Sparks, R. S. J. (eds.). Tephra Studies. Boston: Kluwer. pp. 73–94. ISBN 90-277-1327-8. <a href="90-277-1327-8" target="_blank">90-277-1327-8</a> <a href="#fnref:3" class="footnote-back-ref">↩</a></p></li> <li id="fn:4"><p>BBC (17 September 2014). "What Really Killed the Dinosaurs?". Retrieved 17 December 2019. <a href="https://www.bbc.co.uk/sn/tvradio/programmes/horizon/dino_prog_summary.shtml" target="_blank">https://www.bbc.co.uk/sn/tvradio/programmes/horizon/dino_prog_summary.shtml</a> <a href="#fnref:4" class="footnote-back-ref">↩</a></p></li> <li id="fn:5"><p>Evans, Kevin R. (2008). The Sedimentary Record of Meteorite Impacts. Geological Society of America. p. 174. ISBN 9780813724379. <a href="9780813724379" target="_blank">9780813724379</a> <a href="#fnref:5" class="footnote-back-ref">↩</a></p></li> <li id="fn:6"><p>USGS (February 1, 2010). "Establishing Marker Horizons". Archived from the original on October 10, 2012. Retrieved December 17, 2019. <a href="https://web.archive.org/web/20121010021043/http://www.pwrc.usgs.gov/set/installation/markers.html" target="_blank">https://web.archive.org/web/20121010021043/http://www.pwrc.usgs.gov/set/installation/markers.html</a> <a href="#fnref:6" class="footnote-back-ref">↩</a></p></li> </ol>