169:
45:
418:
378:
423:
383:
388:
408:
398:
271:
267:
413:
403:
358:
British
Geological Survey 1:50,000 scale geological map (Scotland) sheets 109, 110, 115 & 116, and 1:100,000 scale
393:
156:
96:
309:
219:
58:
313:
216:
68:
308:
of which there are 25 and 38 in the constituent lower and upper formations respectively. A
316:
which defines the junction of the two formations and from which a diverse range of fish
278:
372:
27:
338:
247:
223:
184:
44:
251:
86:
305:
301:
297:
289:
231:
200:
133:
119:
254:
and throughout
Caithness, across Orkney and, to a rather lesser extent, in
293:
282:
255:
227:
213:
174:
152:
129:
35:
31:
78:
Upper
Stromness Flagstone Formation, Lower Stromness Flagstone Formation
235:
317:
148:
312:
occurs at the base of the lower formation. A notable element is the
275:
230:. The name is derived from the traditional county of
196:
191:
180:
162:
144:
139:
125:
115:
110:
102:
92:
82:
74:
64:
54:
21:
238:are well exposed, especially in coastal cliffs.
8:
419:Fossiliferous stratigraphic units of Europe
43:
18:
379:Geological groups of the United Kingdom
329:
7:
272:Lower Stromness Flagstone Formation
268:Upper Stromness Flagstone Formation
246:These rocks are exposed, along the
16:Sequence of rock strata in Scotland
424:Paleontology in the United Kingdom
14:
106:over 2,000 m (6,600 ft)
167:
384:Geologic formations of Scotland
285:Stage of the Devonian Period.
250:and along the eastern side of
1:
69:Old Red Sandstone Supergroup
339:"Caithness Flagstone Group"
337:British Geological Survey.
440:
262:Lithology and stratigraphy
389:Devonian System of Europe
210:Caithness Flagstone Group
42:
26:
22:Caithness Flagstone Group
266:The Group comprises the
97:Yesnaby Sandstone Group
320:have been recovered.
288:It contains numerous
49:The Sandwick Fish Bed
409:Siltstone formations
399:Sandstone formations
414:Lacustrine deposits
404:Mudstone formations
28:Stratigraphic range
290:rhythmic sequences
217:lithostratigraphic
314:Sandwick Fish Bed
274:laid down in the
206:
205:
431:
363:
356:
350:
349:
347:
345:
334:
173:
171:
170:
47:
19:
439:
438:
434:
433:
432:
430:
429:
428:
369:
368:
367:
366:
362:(special sheet)
357:
353:
343:
341:
336:
335:
331:
326:
264:
244:
222:(a sequence of
168:
166:
50:
17:
12:
11:
5:
437:
435:
427:
426:
421:
416:
411:
406:
401:
396:
394:Eifelian Stage
391:
386:
381:
371:
370:
365:
364:
360:Orkney Islands
351:
328:
327:
325:
322:
279:Orcadian Basin
263:
260:
243:
240:
226:) in northern
204:
203:
198:
194:
193:
189:
188:
182:
178:
177:
164:
160:
159:
146:
142:
141:
137:
136:
127:
123:
122:
117:
113:
112:
108:
107:
104:
100:
99:
94:
90:
89:
84:
80:
79:
76:
72:
71:
66:
62:
61:
56:
52:
51:
48:
40:
39:
24:
23:
15:
13:
10:
9:
6:
4:
3:
2:
436:
425:
422:
420:
417:
415:
412:
410:
407:
405:
402:
400:
397:
395:
392:
390:
387:
385:
382:
380:
377:
376:
374:
361:
355:
352:
340:
333:
330:
323:
321:
319:
315:
311:
307:
303:
299:
295:
291:
286:
284:
280:
277:
273:
269:
261:
259:
257:
253:
249:
241:
239:
237:
233:
229:
225:
221:
218:
215:
211:
202:
199:
195:
190:
186:
183:
179:
176:
165:
161:
158:
154:
150:
147:
143:
138:
135:
131:
128:
124:
121:
118:
114:
109:
105:
101:
98:
95:
91:
88:
85:
81:
77:
73:
70:
67:
63:
60:
57:
53:
46:
41:
37:
33:
29:
25:
20:
359:
354:
342:. Retrieved
332:
310:conglomerate
287:
265:
245:
209:
207:
192:Type section
281:during the
248:Moray Firth
224:rock strata
187:to Shetland
185:Moray Firth
373:Categories
324:References
276:lacustrine
252:Sutherland
234:where the
87:Eday Group
306:sandstone
302:siltstone
298:limestone
232:Caithness
201:Caithness
197:Named for
134:siltstone
120:Sandstone
111:Lithology
103:Thickness
83:Underlies
75:Sub-units
344:20 March
294:mudstone
283:Eifelian
270:and the
256:Shetland
242:Outcrops
228:Scotland
214:Devonian
175:Scotland
157:Highland
153:Shetland
140:Location
130:Mudstone
93:Overlies
36:Devonian
32:Eifelian
318:fossils
163:Country
116:Primary
65:Unit of
236:strata
181:Extent
172:
149:Orkney
145:Region
220:group
212:is a
126:Other
59:Group
346:2022
304:and
208:The
55:Type
292:of
375::
300:,
296:,
258:.
155:,
151:,
132:,
30::
348:.
38:)
34:(
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
