 | Illinois. State Geologist - 1870 - 672 σελίδες
...beds with those of tho lower part of the stream. The strata there developed consist of very variable sandy clay shales and sandstones, in some places becoming nearly pure clay shales, but containing many nodules of carbonate of iron. Pine Bluff, at the lowermost crossing of the Mazon,... | |
 | Illinois. State Geologist - 1870 - 612 σελίδες
...beds with those of the lower part of the stream. The strata there developed consist of very variable sandy clay shales and sandstones, in some places becoming nearly pure clay shales, but containing many nodules of carbonate of iron. Pine Bluff, at the lowermost crossing of the Mazon,... | |
 | Illinois. State Geologist - 1882 - 640 σελίδες
...beds with those of the lower part of the stream. The strata there developed consist of very variable sandy clay shales and sandstones, in some places becoming nearly pure clay shales, but containing many nodules of carbonate of iron. Pine Bluffs, at the lowermost crossing of the Mazon,... | |
 | 1882 - 618 σελίδες
...beds with those of the lower part of the stream. The strata, there developed, consist of very variable sandy clay shales and sandstones, in some places becoming nearly pure clay shales, but containing many nodules of carbonate of iron. Pine Bluff, at the lowermost crossing of the Mazon,... | |
 | Joseph Silas Diller - 1898 - 508 σελίδες
...(FERRUGINOUS, CONTAINING A FOSSIL). (FROM MAZOX CRKEK, GRUNDY COUNTY, ILLINOIS. DESCRIBED BY JS DILLER.) The rocks along Mazon Creek, Grundy County, Illinois,...they are strongly contrasted with the claystones of Hartford. It should be remembered, however, that Geol. Survey of IlliuoU, VoL IV, p. 196. in the shales... | |
 | Joseph Silas Diller - 1898 - 508 σελίδες
...County, Illinois, from which specimen No. 34 was collected, according to Mr. Frank II. lîradley,1 consist of very sandy clay shales and sandstones,...places becoming nearly pure clay shales with many fossiliferons nodules of carbonate of iron. These nodules contain many species of ferns, as well as... | |
 | 1912 - 612 σελίδες
...beds witli those of the lower part of the stream. The strata there developed consist of very variable sandy clay shales and sandstones, in some places becoming nearly pure clay shales, but containing many nodules of carbonate of iron. Pine Bluff, at the lowermost crossing of the Mazon,... | |
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The outcrop along the Mazon appears nearly continuous, but still I have not been able to satisfy myself as to the connection of the above beds with those of the lower part of the stream. The strata there developed consist of very variable sandy clay shales... 