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Report on the geology of the county of Londonderry and of parts of Tyrone and Fermanagh : examined and described under the authority of the master general and board of ordnance / by J. E. Portlock
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Fig Z. Section. shewing the position, o-r the Silver ia ,tl Pochs ite a.T' Poinercy.

FlCf /. A ectiOTl shewina an cutlying portion of PcLSCL.lt a n d Chctl-Pt near Ste'WCLVtStO'WII

* Bearing of Section. .V* 52JH

/

Gravel \ 'and'f J;

s v

f Detritus co n.c eg .1 j ±\ e rocks

evfc /

C A*%**r

^«afioaEr

j neeu 4-7 ana. 3!)

f

Homblendic Rocks Granxtiforan Rocks

Trip ed'^fh^Nev: Btd.Dipjjojfjjt^u~* /vChalk L ) N E

Fia. F S e c ti o n

Fig. 3 ? Section, of the Lew in. Pits, Driunglcoss Colliery

line A-B- (See Plan Plate H )

zn the 7i e i g h, b c u . r h o c d c i C l G Q Tl e. V .

Bearing cf Section S. 14 £

tiandstonc and ShalesCi <4 a t'is £c

Fiq. 3. Section of AnnccafieT' Colliery, near Coal Island.. C° Tyrone

O Furmvf'hed.fy Ridtas'd, Griffith, Flsq re

( See Plan, Plate S j

Hard clayey and. calcareoubeds

daitdstcn.es and Shales with PI

'.'impact Sandst

I.itix e s i r n e and Shales

- Dt mestons

Pit JU'P z

J oil

Pit JC°1

' Sand. ' and,Gravel : :

Blue - clay

S\e^/ /r , Sif '<,Syf r

andstonc

Blue

a nd

Grey Met a.1

». o *3?

Hard compact calcareous and clayey S&Sds. Fossils few '

£A T

Fig S. Section in. th. e n. e. i cf h b o u r h o o ci of Pi V Tfl L l - t C W 71

Bearing' of Section. S. 10.£

Sa.Tvdston.es with P l a. nts hard, c a.lcare ous layers and.

Meas

Shales, with Cidaris Benburhensis, Bellerophon striatum. Sc

Scale.. SO Yards tv ^ ^ch

Sheet* Si uni SB

Scale 400 Yards to cm Inch

Blue Jfttal

GfnMttaJ

Plate G.

an. a. gTo

r Fe r m

Magioires -Bride/

C ourtty

Courtly of Donegal t

Fig. 6. Section, from

1. o ua h. D erg

the

C in

o near

Bearing of Section, S 31-Ji,

s'y

S2S*-

Old R ed

fi > °h

'VS'

c ee>.

19$

ly.

Sheets 40 &nd,44

^Tkcets's an/LtO

nyfte

S c h i s t

Dyke

$^schvt

line

sec

i Old Rea.

Dip of the

Fig. 7. Sect

c o tl ti n ,il e ci fro

ton.

S h a- if-

Li til e s t o n. e

and

Sheets S

tvcriavn.

sheets If vuvL76

Streets To and

Old, Red

SCALE FOR FIC* 2,4-,5.6,7.

3 Inches tc one Sta.tu.te Milt

SCALE FOR FI C- I.

6 laches to one Statute Mile

Staneti.Age 4r C? Zithc LonvUm.

mm

a.*®: