17:
92:
that is exposed in the hanging wall of the
Champlain Thrust Fault at Lone Rock Point. This unit was initially deposited in a warm, shallow sea environment as a platform carbonate. Well-exposed mullions at the base of the dolomite plunge about 15 degrees southeast, indicating transport direction
112:
along the planar thrust surface. Overlying pressure has led to a high degree of vertical faulting and calcite dissolution (white banding) throughout the unit. The top-most layer of the shale has been eroded away.
227:
Lone Rock Point GSA DNAG field trip #50, Stanley, R., 1987, The
Champlain Thrust Fault, Lone Rock Point, Burlington, VT, GSA Centennial Field Guide, Northeastern Section pp. 225-227.
333:
328:
323:
93:(headed toward the modern lake). The light colored rocks along the shoreline are blocks of dolomite that have fallen after the shale eroded away.
175:
176:"Written In Stone...seen through my lens: Part II: Geological Observations by Land and Sea of the Champlain Thrust Fault at Lone Rock Point"
269:
284:
40:
338:
101:
The
Ordovician Iberville Shale was likely deposited in a deeper marine environment and consists of fine-grained
207:
54:
32:
152:
46:
The site is of geologic significance for its spectacular exposure of a thrust contact between the
109:
69:
265:
236:
Hatcher, R.D. Jr., Structural
Geology: Principles Concepts and Problems., 1990., Prentice Hall
130:
51:
65:. At this site, the stratigraphic throw of the Champlain Thrust measures about 8,850 feet.
58:
16:
105:
materials. Slip surfaces within the
Iberville Shale seen at Lone Rock Point often contains
89:
62:
36:
317:
77:
259:
76:
and is featured in many structural geology text books as a classic example of a
73:
39:. It is publicly accessible via a trail network and sits on land owned by the
28:
20:
The contact between the Dunham
Dolomite and Iberville Shale at Lone Rock Point
299:
286:
215:
Geological
Society of America Centennial Field Guide - Northeastern Section
261:
The Nature of
Vermont: Introduction and Guide to a New England Environment
245:
Billings, M. p., 1972, Structural
Geology (3rd Ed.); Prentice-Hall, 606 p.
47:
106:
102:
57:. The thrust fault exposed at this location is regionally called the
208:"The Champlain Thrust Fault, Lone Rock Point, Burlington, Vermont"
15:
133:. University of Vermont Department of Geology
8:
334:Tourist attractions in Burlington, Vermont
329:Landforms of Chittenden County, Vermont
180:Written In Stone...seen through my lens
122:
68:The site is arguably the most visited
7:
253:
251:
201:
199:
197:
195:
258:Johnson, Charles W. (2000-09-26).
131:"The Champlain Thrust…what is it?"
88:The Dunham Dolomite is a Cambrian
14:
153:"The Rock Point Center: About Us"
324:Geography of Burlington, Vermont
155:. Episcopal Diocese of Vermont
50:-aged Dunham Dolomite and the
1:
174:Share, Dr Jack (2011-10-24).
41:Episcopal Diocese of Vermont
35:and on the eastern shore of
355:
61:which formed during the
300:44.490309°N 73.248739°W
206:Stanley, Rolf (1987).
21:
305:44.490309; -73.248739
19:
296: /
33:Burlington, Vermont
339:Geology of Vermont
72:feature in all of
70:structural geology
22:
52:Middle-Ordovician
346:
311:
310:
308:
307:
306:
301:
297:
294:
293:
292:
289:
276:
275:
255:
246:
243:
237:
234:
228:
225:
219:
218:
212:
203:
190:
189:
187:
186:
171:
165:
164:
162:
160:
149:
143:
142:
140:
138:
127:
59:Champlain Thrust
354:
353:
349:
348:
347:
345:
344:
343:
314:
313:
304:
302:
298:
295:
290:
287:
285:
283:
282:
280:
279:
272:
257:
256:
249:
244:
240:
235:
231:
226:
222:
210:
205:
204:
193:
184:
182:
173:
172:
168:
158:
156:
151:
150:
146:
136:
134:
129:
128:
124:
119:
99:
97:Iberville Shale
86:
84:Dunham Dolomite
63:Taconic Orogeny
55:Iberville Shale
25:Lone Rock Point
12:
11:
5:
352:
350:
342:
341:
336:
331:
326:
316:
315:
278:
277:
270:
247:
238:
229:
220:
191:
166:
144:
121:
120:
118:
115:
98:
95:
85:
82:
37:Lake Champlain
13:
10:
9:
6:
4:
3:
2:
351:
340:
337:
335:
332:
330:
327:
325:
322:
321:
319:
312:
309:
273:
271:9781611681314
267:
263:
262:
254:
252:
248:
242:
239:
233:
230:
224:
221:
216:
209:
202:
200:
198:
196:
192:
181:
177:
170:
167:
154:
148:
145:
132:
126:
123:
116:
114:
111:
108:
104:
96:
94:
91:
83:
81:
79:
75:
71:
66:
64:
60:
56:
53:
49:
44:
42:
38:
34:
30:
26:
18:
281:
260:
241:
232:
223:
214:
183:. Retrieved
179:
169:
157:. Retrieved
147:
135:. Retrieved
125:
110:slickenlines
100:
87:
78:thrust fault
67:
45:
24:
23:
303: /
74:New England
318:Categories
291:73°14′55″W
288:44°29′25″N
185:2016-02-29
117:References
29:promontory
31:north of
264:. UPNE.
159:25 April
137:25 April
90:dolomite
48:Cambrian
107:calcite
103:clastic
268:
211:(PDF)
27:is a
266:ISBN
161:2016
139:2016
320::
250:^
213:.
194:^
178:.
80:.
43:.
274:.
217:.
188:.
163:.
141:.
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
