26 NEW YORK STATE MUSEUM 



lake which Hes mainly within its area of outcrop, extending east and 

 west along the strike. The more resistent strata of the Oneida and 

 Medina formations border the lake on the north and the contours 

 rise rather rapidly from the shore line, while to the south there is 

 a level stretch several miles wide underlain by the upper Niagaran 

 and Salina beds before the first line of ridges is reached. The basin 

 is the result, thus, of differential weathering and erosion, performed 

 in large part perhaps during glacial times. 



Verona, Oneida co. The Clinton strata are well exposed in 

 Verona township, northeast of the city of Oneida. They occupy a 

 strip from 4 to 5 miles wide that is clearly defined by the outcrop 

 of the Oneida conglomerate on the north and the Lockport limestone 

 on the south. The conglomerate occurs in clo'se proximity to the 

 lower Clinton shale. The latter, as shown by the section obtained 

 *n the test well at Verona Station, has a thickness of over 35 feet, 

 considerably more than in the sections to the west. It increases still 

 more eastward until at Clinton the thickness is nearly icmd feet. 



There is much interest attached to the ore occurrence in this 

 vicinity, since the character of the hematites appears to be quite 

 different from that of the ores exposed around Clinton and in the 

 town of Westmoreland where the next outcrops to the east are 

 found. The main bed i^ a fossil ore and occupies the same relative 

 horizon in the formation as the Clinton oolitic bed. The presence 

 of a second seam, from 25 to 30 feet above this bed, is evidenced 

 by the excavations made in the village of Verona. This seam con- 

 sists of lean, limey fossil ore containing crinoid fragments and 

 large-sized brachipods. There appears to be a third ore horizon, 

 still higher up, represented by the seam that comes to the surface 

 on the Donnelly farm, 5 miles northwest of Oneida and is possibly 

 identical with the ore mentioned by Vanuxem^ as occurring at Josce- 

 lin's Corners, between the hamlets of Lakeport and Oneida Lake. 

 Its horizon is shown by the thin band found at 66 feet in the Lake- 

 port hole. 



Clinton, Oneida co. Though this is the type locality for the 

 Clinton formation, the stratigraphic relations here are still somewhat 

 indefinite. No sharp line of demarcation can be found between the 

 Clinton and the Oneida-Aledina formations below, and the upper 

 limits are equally difficult to determine. A solution of the problem 

 must await further comparison of the fauna with that afforded by 

 the exix)sures to the west. From a paleontological standpoint, some 



Geol. N. Y. 3d Dist. 1842. p. 89. 



