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  1. Onondaga Limestone

    ... occur in only trace amounts and include what is likely authigenic quartz and iron oxide/hydroxides. There are a few very thin ... occur in only trace amounts and include what is likely authigenic quartz appearing in aggregates and as individual grains (~ .03 mm) ...

    Intern - 2015-09-05

  2. Indiana Gray

    ... is about .5 mm and the modal range is around .3 mm. Rare authigenic quartz is present with maximum grain size near .05 mm. Extant ...

    Raven Mueller - 2015-09-08

  3. Variegated

    ... size is about .7 mm and the modal range is around .3 mm. Authigenic quartz is rarely present at far less than 1 percent of slide ...

    Raven Mueller - 2015-07-22

  4. Lueders, Buff

    ... around .5 to 75 mm. The slide also contains rare, likely authigenic quartz grains with a maximum dimension of .15 mm. Most quartz ...

    Raven Mueller - 2015-07-22

  5. Indiana Buff

    ... interparticle with a maximum dimension near .3mm. Authigenic quartz is very rarely present in ooids with a maximum ...

    Raven Mueller - 2015-09-08

  6. Lueders

    ... rare collophane with a maximum dimension around .6 mm and authigenic quartz with a modal size around .1 mm. About 3 percent of ...

    Raven Mueller - 2015-07-22 - 1 comment

  7. Bottom Ledge Cottonwood

    ... rare collophane with a maximum dimension of 2.4 mm, authigenic quartz with a modal size around .04 mm and secondary ...

    Raven Mueller - 2015-07-22

  8. Lueders, Charcoal

    ... fragments are present with a maximum dimension of 1 mm. Authigenic quartz is very rare and has a maximum dimension of .4 mm. ...

    Raven Mueller - 2015-07-22

  9. Lueders, Buff R.B.

    ... suggest a faecal origin. The slide also contains rare authigenic quartz , far less than 1 percent of slide area, with a maximum ...

    Raven Mueller - 2015-07-22

  10. Plaza Gray

    ... include collophane with a maximum dimension of .65 and authigenic quartz with a modal range around .1 mm; both are rare at far ...

    Raven Mueller - 2015-07-22

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