Linton 
Cambrian Rocks. 
* 
Upper Cambrian or 
vonian Rocks. 
Silurian Rocks. 
BARNSTAPLE 
Comp Mannix : ILFRACOMBE 
Biwerorp (W of) 
TORRINGTON DARTMOOR 
Sirti, 
Trough of Carbonaceous Deposits. 
ASCENDING SERIES OF DEVONIAN ROCKS. 
@) Slat schist, with a calcareous courses 
Rokr 
c remain 
(2) Parple, fed. and grey. sandstones, with beds 
upp embers foe 
per. 
(c) Calcareous group of Combe Martin and 
Ilfracombe—fossils very eas 
clea ve 
(d) Slates with quartzose veins and beds— 
erent schists, &c. Mang 
eds of organic remains. 
(f) Ditto, with cdi onary limestones, and 
many we Silurian — chiefly 
of the lower ert tof the syste 
| 
(g) Wo te ia black | imestone, with 
* and fossils distinet 
font any fou n the inferior groups. 
ig bctare tn the beds below this 
Culm oa 
Coal fields o 
(A) cass begs with ote hg! and ibn J 
andstone and shal 
ning coal plants, 
and n 4 = like the older rocks by 
slaty ¢ 
(7) Bide bed sandsees resting unconformably 
arbonaceous deposits. 
(k) Gianite of Dartmoor and Elvan Dyke, both 
erupted through the culm deposits 
Rererences.—l. Beds of Iron ore.—2. Lead ore.—3. Wavellite.—4. (plants.)—5. Culm.—6. Elvan Dyke.—7. (planfs.) 
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