i8 



MIDDLE ALBIAN STRATIGRAPHY 



Div. 



17 



LI t holog y 



Dense seam of blackish phosphatic nodules and fossils in 

 bluish grey clay. Nodules tend to divide Into two seams. 



(ill) Bluish-grey clay becoming darker upwards, with brownish 

 partings and pockets of limonite after pyrltlsed fossils. 

 Occasional phosphatised fossils occur with the shell 

 especially at a level 4 inches below the top. A scattered 

 line of small buff phosphatic nodules occurs 5 Inches above 

 the base. 



xt 



(II) Bed of chocolate-brown phosphatic nodules in dark fawnish/ 

 grey cloy. / 



■V. 



r< 



(I) Darkish, rather fawn-grey clay about 1 foot in thickness 

 with shell seams and scattered phosphatic nodules, 

 underlain by dark-grey shelly clay passing down into 

 light speckled fawn-blue-grey clay with sporadic 

 lentlcles of ferruginous marly clay and marlstone near 

 and at the base. 



(ill) Dark blue-grey clay with shell seams, lightening In 

 colour towards the top. 



(il) seam of Irregular-shaped phosphatic nodules. 



(I) Grey slightly fawn clay with many shell seams and 

 bands of burrowed clay passing down into three feet 

 three inches of greenish grey clay becoming progressiv- 

 ely darker and more glauconitic downwards The clay 

 is blocky with yellowish partings and contains seams 

 of scattered incipient buff phosphatic nodules at 

 heights of 2 ■feet 8 I nches, 3 feet 9 inches, 4 feet 6 

 Inches, 6 feet 3 inches and 8 feet 8 inches. 



Bed of blackish phosphatic nodules, some septarian, In hlqhly\ 

 glauconitic clay with some crushed fossils. _____ 



Glauconitic sandy clay, becoming sandier below. 



! 



6 

 subd. 



I*. 



< J ? S ' " <— c__ 



»«flAW 



--..*-.--■ 



Ft Ins M 



- 3-4 



8 



4 



1-2 7- 



13 



Fig. 6. Lower Gault sections at NW. quadrant of A 249 clover leaf, Maidstone By-Pass 

 (East Section) M 20, extending from a point 585 yds NE. of the Chiltern Hundreds public 

 house to the A 249, Boxley, Kent (TQ 77805745). 



