52 THE CRETACEOUS ROCKS OE BRITAIN. 
The section as seen in 1896 was given in the first volume of this 
memoir, but a part of it may be repeated here, as follows :— 
ft. 
' Soil and rubbly Chalk ------ 3 
Grey marly Chalk, drying whitish - - - 6 
Chalk Marl. ( Grey mottled marly Chalk, containing hard con¬ 
cretionary lumps ; Am. [Schloenbachia'] varians 9 
l N Grey clayey marl mottled with yellowish buff - 2 
Chloritic / Greyish-green sandy glauconitic marl, with 
Marl. \ Ostrea vesicularis waAAvicula gryphceoides 3 
cuwnian J Micaceous marly sands- ----- 8^ 
\ Grey sandstones (Hearthstone) - - - - 12 
There is a complete passage here from Selbornian to Chalk through 
the bed which we regard as Chloritic Marl, and there are no phos- 
pliatic nodules. There is a similar succession at Eetchworth (see 
below). 
About 300 yards west of Wliiteways End House, 2\ miles east of 
Farnham, a shallow but important section was seen in a small 
quarry as follows j n 
Soil - - 1 0 
pi , ,i M i /Chalk Marl, soft, but with hard rubbly fragments 
,u ( —Am. [Schloenbachia] varians - - - 1 6 
{ Soft, very glauconitic sandy marl, with many 
brown phosphates,(a phosphate cast oiAvicula 
gryphceoides) - - - - - - -10 
Upper Greensand. —Greyish-brown sandy marl- - - - - 1 2 
The grey sandy marl is quite different from that underlying the 
Chalk Marl to the eastward, but is identical with that under¬ 
lying the Chloritic Marl in Hampshire, and the reappearance of 
phosphatic nodules is noteworthy. 
Chalk Marl.— There are few exposures of the Chalk of this 
zone. Mr. Caleb Evans notices “ dark grey Chalk Marl, and also 
blocks of yellowish Chalk,” in the debris thrown out from the shafts 
of the tunnel north of Oxted Station.* He continues: “The light 
grey and yellowish chalk is hard, and sliow T s little approach to 
marl. It contains in abundance casts of Am. [Schloenbachia] 
varians and of Inoceramus.” The hard blocks were probably the 
concretionary masses near the base of the Chalk Marl. 
x4 small disused quarry about a mile east of Merstham exposes 
greyish-white Chalk with Am. [Schloenbachia ] varians. The section 
near Reigate has been given above. 
The base of the Chalk Marl is also exposed in a quarry one-third 
of a mile north-east of Betchworth Station, close to the high road. 
In 1896 the section was as follows - n 
' Soil and rubble - ------30 
Chalky rubble - -- -- -- 20 
i Chalk Marly chalk, very much broken up - 4 0 
Marl. Marly whitish-grey chalk, with hard masses, dis- 
V 7 7 
turbed and broken, Am. [Schl .j varians , Am. 
[Schl.] Coupei, Turrilites costatiis, and iuberculatus 6 0 
* On some sections of the Chalk between Croydon and Oxted, Geol. 
Assoc., p. 27, January, 1870. 
