210 



some degree of stratification. 'Plic sand varies in tliifkness from a tiiin 

 coating to 100 feet or more. 



To the south of New Ilarinony the same type occurs, hut in many 

 places it appears a true sandy loam. In addition to the areas of sand 

 mentioned ahove. many areas of small extent and varying' fpiality occur 

 in the lower bottoms along the river. 



4. The Deposits Alonn the Ohio River. — Great bars and deposits of 

 sand occur in the bends of the Ohio River all along its course, but no 

 valley deposits of importance occur until below Rockport. From this point 

 to the junction of the Ohio and the Wabash there is a continuous deposit 

 of sand except where broken by the bluffs coming down to the river, as at 

 Rockport. The most characteristic occurrence of the sand is in a narrow, 

 persistent ridge lying only a sliort di.stance baclv from the river. The slope 

 on the river side is rather abrupt while inland the slope is long and gentle. 

 This ridge seems to have been formed before the river cut its channel down 

 to the present level. During times of ovei'flow the coarser materials were 

 deposited near tlie channel and the finer grades carried farther Inland, 

 thus forming a natural levee along the river. 



5. The Deposits Aloiui White River and Its Trlhtitdrlcs. — I'.oth forks 

 (if White River liave considerable deposits of saiid and icravel along their 

 courses and have contributed much to road material, building sand, etc. 

 Along the east fork large quantities of sand occur in tlu' bed of the river 

 at Brownstown, and south of Bedford old stream deposits furnish nnicli 

 sand for ballast and other purposes. Here on the south side of the river 

 the sand is built up into dune-like hillocks. At West Shoals considerable 

 sand occurs in the present valley, and also on the top of tlic liluff is ;i 

 deposit made by tlie stream in its early history. Again to tlie west at 

 Portersville river sand occurs on the bluff. From this point ti> I'etersluu-;^ 

 the sand continues in an irregular line, and from there to Ilazleton tlu' 

 area widens and becomes a part of the line of the Wabash deposits. 

 Through (ireene and Daviess Counties considerable sand occurs along th • 

 west fork, but in most places where it occurs it becomes a sa'idy loam. 

 To the northwest of liloomlield some magnetite is found in the sand, and 

 similar deposits of less extent occur at other points to the north along 

 the main stream and its tributaries. 



