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Contributed by Yale Peabody Museum of Natural History.
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Transcription
6/29/98 Rifle Hill Quarry. Patterson Co.
Red locality 6 in 1995 field note book. We drove from Decorah on US
52, truned off at Harmony, MN taking Co. 139 and MN 44 (dirt road under
repair). However, after several miles MN 44 was closed and we had to
take MN 17 and twisted around on roads until an automotive repair works
(out among the farms) made a diagram for us to get to Cherry Grove (via
Preston).As we approached Chrry Grove, still a few miles out, we came
down a long hill with good rock exposures and at bottom of hill across
creek we arrived at Rifle Hill Quarry.
Nothing at top of quarry in small area that has a seperate entry.
4 photos, 3 in bottom main quarry and one in top of quarry.
Notes 1) lots of fine-scale soft silt deformation in calc. mudstones. 2)
lots of chert with structures in chert and these suggest that silification
preceeded final compaction of mudstone.
6/29/98 6A Still at Rifle Hill quarry. photo of Elgin Fm on south side of
road at top of quarry hill (headed W). 2.5 miles to intesection of Co. 14
and Co. 5 1 mile west on MN 14, an otc. of Elgin slabby late and calc. silts.
6/29/98 92 Wubbels Hill (Warren and Kim Wubbles) a property and
farmer's name is Wubbels. This is closer to 4 miles ESE and off the main
county road.
June 7 we left Nashville and joined I-40 east to pick up TN 53, then on to
TN 85. Finally found Gladdice section which is in Jackson Co. and just E.
of Gladdice.
Continued on TN 85 and then took TN 53 to 33. Lunch in shade at 33.
Then on to Celina on TN 53.
Need to get by Interlibrary Loan:
Cressman, E.R., and Karklins, O.L. 1970. Lithology and Fauna of the
Lexington Late (Ordovician) of Central Kentucky, in Guidebook for field
trips-Geol. Soc. of Amer., Southeastern Sect., 18th Ann. Mtg., Lexington,
KY, 1970. KY Geol Survey, p. 17-28
Cressman, E.R. and Noger, M.C. 1976. Tidal-flat carbonate environment in
the High Bridge ?(M Ord.) of central Kentucky. KY Geol. Survey, Series 10,
Rept. of investigations 18, 15p.