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At places throughout the Alps the
European basement was, after being detached of its cover rocks, tectonically uplifted in a late stage of the orogeny. Thus the "external massives" were formed, places where the Hercynian basement rock crops out in large
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In
Switzerland the Helvetic zone is found in outcrops on the northern side of the Alpine mountain ranges. The French Alps consist mainly of Helvetic (Dauphinois) material. In Germany and Austria the Helvetic nappes crop out as a narrow band.
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that continues into the
Hercynian basement. Because basement and "cover" were not detached, geologists do not call the Infrahelvetic units "nappes".
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rocks of these external massivs form the first of the higher ranges of the Alps. These chains are (from southwest to northeast): the
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basement rock. The
Mesozoic of this unit is contemporary with that of the Helvetic nappes, but deposited further north on the former
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at the southern (or in France eastern) side of the
Helvetic zone. Seen from the north (or in France from the west) the hard
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350:, French geologists often prefer the French name but normally this is considered the same thing.
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424:" in eastern Switzerland. The Infrahelvetic complex is composed of
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Geology of the western and central Alps, website of S.M. Schmid
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This article is about the geology of the (European)
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8:
323:for Swiss). Rocks in the Helvetic zone are
307:subdivision of the Alps. The Helvetic zone
367:The Helvetic zone consists of a number of
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420:The Helvetic nappes are thrust over the "
498:Sigriswiler Rothorn in the Emmental Alps
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409:. The Helvetic nappes are completely
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440:. The Infrahelvetic is internally
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315:, hence the name (derived from
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428:Mesozoic sediments on top of
31:. For the main article see:
436:and therefore shallower in
371:very different units. The "
207:Paleogeographic terminology
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379:that was thrust over the
230:Apulian or Adriatic Plate
391:. They are composed of
534:Geology of Switzerland
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53:
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422:Infrahelvetic complex
225:Piemont-Liguria Ocean
116:Geological structures
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339:. The Helvetic zone
327:and were originally
169:Penninic thrustfront
59:Tectonic subdivision
524:Geology of the Alps
129:Dent Blanche klippe
90:Formation and rocks
77:Austroalpine nappes
41:Geology of the Alps
33:geology of the Alps
539:Geology of Austria
529:Structural geology
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438:sedimentary facies
413:from their former
255:Geology portal
194:RhĂ´ne-Simplon line
159:Hohe Tauern window
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481:Mont Blanc Massif
469:Massif des Écrins
444:by thrusting and
434:continental slope
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220:Briançonnais zone
174:Periadriatic Seam
16:(Redirected from
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477:Aiguilles Rouges
331:at the southern
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373:Helvetic nappes
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348:Dauphinois zone
297:Helvetic system
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247:
244:Alps portal
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189:Rechnitz window
149:Giudicárie line
139:Engadine window
72:Penninic nappes
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489:Gotthardmassif
387:in the Alpine
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337:European plate
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154:Greywacke zone
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98:BĂĽndner schist
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426:autochthonous
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385:Molasse basin
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293:Helvetic zone
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184:Lepontin dome
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164:Molasse basin
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134:Engadine Line
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82:Southern Alps
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67:Helvetic Zone
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18:Helvetic Zone
454:anticlinoria
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369:tectonically
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215:Valais Ocean
461:crystalline
377:nappe stack
363:Subdivision
325:sedimentary
313:Switzerland
144:Flysch zone
518:Categories
503:References
473:Belledonne
465:Mercantour
354:Occurrence
341:correlates
317:Helveticus
311:mainly in
301:Helveticum
199:Sesia unit
179:Ivrea zone
485:Aarmassif
458:competent
430:Hercynian
399:limestone
343:with the
329:deposited
309:crops out
124:Aarmassif
487:and the
479:and the
442:deformed
415:basement
411:detached
393:Mesozoic
389:foreland
375:" are a
305:geologic
52:The Alps
446:folding
383:of the
381:molasse
335:of the
299:or the
108:molasse
483:, the
475:, the
471:, the
467:, the
407:shales
396:marine
345:French
333:margin
103:flysch
403:marls
321:Latin
303:is a
405:and
291:The
29:Alps
520::
491:.
417:.
401:,
319::
295:,
280:e
273:t
266:v
20:)
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