90 GEOLOGICAL NOTES IN THE NEIGHBOURHOOD OF ONGAR. 



At Stondon Massey there are very fine sections in graveP" 

 between Stondon Hall and the church. The gravel coats the hill 

 and is very thick, and consists largely of flint pebbles. There is also 

 a large proportion of subangular flints, and of small quartz pebbles, 

 half or one inch in length. Glacial erratics in the shape of quartzites 

 and quartz pebbles are common, and many are of large size. At the 

 lower end of the pits there was in 1890 a section 14 feet deep, showing 

 gravel with irregular sandy and clayey patches in places. 



The gravel pit marked on the Geological Map, near Paslow Hall 

 Farm gave the following section : 



1. Mottled red and blue clay with small stones, and here 



and there irregular patches of small gravel = Boulder- 

 Clay. 



2. Gravel of subangular flints, flint pebbles, black unworn 



flints, quartz blocks up to 4I inches in length, 

 quartzites up to 6| inches in length = Glacial Gravel. 



The gravel here is remarkably like that in the pit at Chiver's 

 Paun Manor House and at Stondon Massey already alluded to, that 

 is one reason why I believe they are all Glacial Gravel. 



The Cripsey Brook has, as will be seen from the map, cut 

 through the Boulder-Clay and exposed the underlying Glacial 

 Gravel. I noted a series of sections along it, of which the following 

 are the details : — 



Gravel Pit, five furlongs IF. of Little Laver Clu/rch, 2 1 7 

 feet O.D. Three feet of gravel shown, composed of 

 flint pebbles, subangular flints, and quartz pebbles, 

 with many pebbles of quartzite. This gravel 

 is of the character of Glacial Gravel, the pit is 

 just below, east of, the patch of gravel which is 

 mapped Glacial Gravel in sheet i, and Plateau 

 Gravel in sheet 47. 



Moreton, three furlongs N. JV. of the Church, small gravel 

 ivorking by the roadside. 200 feet O.D. Gravel six 

 feet thick, composed of quartz, quartzite, flint 

 pebbles, and sub-angular flints. Mapped Glacial 

 Gravel. 



Shelley, Gravel Pit tiorth of Shelley Bridge. 175 feet 

 O.D." 



I. Earthy Bed with many stones. 



10 Whitaker, oJ>. cit., p. 314. — Professor Dawkins' and Mr. Bennett's notes. 



11 Whitaker, o^, cit, p. 314. — Professor Dawkins' notes. 



