MINEBK00263

• County: San Miguel
• Document: Manager
• Suffix: A

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FbTraatioa Nema. Thickness Character of rocks.
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!n feet.
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Cray or rusty-brown quartzosa sandatones~ ~ E
with a variable conglomerate containing i -~
email ohert pebbles at or near the base. ~r;;
Dakota Forc:7ation. 126-1?5 Car~naceous shale paetin~s occur at
several horizons. ,Coal iR locally de- ~ ;!
veloped in these shales. Poorly pre- ' '
earned plant reaaains are the Daly fossils. ~
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lacy aiternmting beds of friable? fins-
w LicElar~o foricatimn. SGO-900 grained gray aaadstone and var4e~,~ted
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ahales~ often sandy. Fossils have.a~ot j
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been Poland.
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Rlso vhite~ even- arad fine-grained sand- i
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is Plata saaaPatolie.
100.175
stones separated by a th4n black lime-
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stone or calcareous shale. i7o determin- ~i'
able toasfla have been found. ~'',
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A aeries of reddish quartzose saaadatonea, +,
grits albd ooaglomerates~ the latter us- ;i?j
wally coaltalnilag granitic debris and i'i''.
fragmeata of Aigonkian achiats and quartz- ?,
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itea. Several thin limestone oonglomsr- ~(
~,lt.-.. :° -.ts~w~ 751:(1 ataa.,ai~th small namhl es. nharar_teri zethe ~`~~.
upper pert. These contain Posails, among ~~
zal7ioh era teeth. of a crocodile (Belodon) `'jj'; ~i
and of a megaloaauroid Diaoaaur, remains 'I',
of a ~noid fish, s gastropod like Vivi- !
parusl A Union and some andeterminad ,~°„
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species of'plaata.
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it should be borne mind that the above section is as marked a ~ e~neral- i~f''
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ed section of the Teliulide Quadrangle.a To flluetrate: The 1lancoa shales i
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ked 2000 feet thick sway be fovald a taw miles went of the City of Toiluride. "`'
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11e_near Paaetora this stasis; fay misaing~ or ia.othsr wards has- been eroded
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