K/AR dating of clinoptilolite, mordenite, and associated clays from Yucca Mountains, Nevada

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Zeolites are abundant in the geologic record in both continental and marine environments. The purpose of the present study is to evaluate the utility of K-bearing zeolites for dating by the K/Ar method to determine the time of zeolite diagenesis at Yucca Mountain, Nevada (Fig. 1). At Yucca Mountain, K-rich clinoptilolite and possibly mordenite are the only potentially K/Ar dateable secondary minerals present in the zeolite-rich tuffs except for some illite/smectites ({ge}10% illite layers) associated with these minerals. Direct dating of K-rich clinoptilolite, the most abundant zeolite in the altered tuffs, is important to delineate zeolite chronology as part of ... continued below

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26 p.

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WoldeGabriel, G. July 1, 1993.

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Description

Zeolites are abundant in the geologic record in both continental and marine environments. The purpose of the present study is to evaluate the utility of K-bearing zeolites for dating by the K/Ar method to determine the time of zeolite diagenesis at Yucca Mountain, Nevada (Fig. 1). At Yucca Mountain, K-rich clinoptilolite and possibly mordenite are the only potentially K/Ar dateable secondary minerals present in the zeolite-rich tuffs except for some illite/smectites ({ge}10% illite layers) associated with these minerals. Direct dating of K-rich clinoptilolite, the most abundant zeolite in the altered tuffs, is important to delineate zeolite chronology as part of the site characterization of Yucca Mountain.

Physical Description

26 p.

Notes

INIS; OSTI as DE93016563

Source

  • Zeolite 93: 4th international conference on the occurrence, properties, and utilization of natural zeolites, Boise, ID (United States), 20-28 Jun 1993

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  • Other: DE93016563
  • Report No.: LA-UR--93-2254
  • Report No.: CONF-9306100--3
  • Grant Number: W-7405-ENG-36
  • Office of Scientific & Technical Information Report Number: 139149
  • Archival Resource Key: ark:/67531/metadc624490

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  • July 1, 1993

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  • June 16, 2015, 7:43 a.m.

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  • Feb. 25, 2016, 8:01 p.m.

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WoldeGabriel, G. K/AR dating of clinoptilolite, mordenite, and associated clays from Yucca Mountains, Nevada, article, July 1, 1993; New Mexico. (digital.library.unt.edu/ark:/67531/metadc624490/: accessed December 17, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.