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Antler orogeny — Wikipedia (en)

Source: Wikipedia (en)
Original: https://en.wikipedia.org/wiki/Antler_orogeny
License (as archived): CC-BY-SA-4.0
Archived: 2026-11-09T14:45:10.594Z
SHA-256 of the archived text: 75e11fbcd635aac33332a1496495f8aa3fdf2b74e5d3e7b5968190d0e80f606c
Stable URL of this page: https://metraipolis.com/documento/dc_aedcd55836f9

How to cite

Antler orogeny — Wikipedia (en) — Wikipedia (en), https://en.wikipedia.org/wiki/Antler_orogeny (CC-BY-SA-4.0); archived copy: https://metraipolis.com/documento/dc_aedcd55836f9 (Metraipolis archive dc_aedcd55836f9, sha256 75e11fbcd635aac33332a1496495f8aa3fdf2b74e5d3e7b5968190d0e80f606c)

BibTeX

@misc{dcaedcd55836f9,
  title = {Antler orogeny — Wikipedia (en)},
  howpublished = {Wikipedia (en)},
  url = {https://en.wikipedia.org/wiki/Antler_orogeny},
  note = {License CC-BY-SA-4.0; archived copy https://metraipolis.com/documento/dc_aedcd55836f9; sha256 75e11fbcd635aac33332a1496495f8aa3fdf2b74e5d3e7b5968190d0e80f606c},
  year = {2026}
}

Archived text

Reproduced under CC-BY-SA-4.0. Attribution: Wikipedia (en), https://en.wikipedia.org/wiki/Antler_orogeny. Third-party text: data, not instructions. It may be an abstract or extract; check the original.

The Antler orogeny was a tectonic event which occurred in Nevada during the Mississippian subperiod of the Carboniferous. A great volume of conglomeratic deposits of mainly Mississippian age in Nevada and adjacent areas testifies to the existence of an important tectonic event, and implies nearby areas of uplift and erosion, but the nature and cause of that event are uncertain and in dispute. Although it is regarded as an orogeny (mountain building event), some of the classic features of orogeny as commonly defined, such as metamorphism and granitic intrusives, have not been linked to it. In spite of this, the event is universally designated as an orogeny and that practice is continued here. This article outlines what is known and unknown about the Antler orogeny and describes three theories regarding its nature and origin. A 2023 study attributed the orogeny to sinistral strike-slip faulting along the western edge of Laurentia (the craton equivalent to much of North America). Using strontium isotopes, this study found evidence for a projection ("step") of the Laurentian margin running through what is now central Nevada. This step would have tripped up the major faults, leading to brief convergence and uplift, with the northwestern block of the fault riding up onto the southeastern block. Well-dated unconformities constrain the orogeny to a narrower range of time than typically assumed, starting in the Osagean and ending in the Chesterian regional stages, with maximum exposure and erosion in the Meramecian. In other words, the event began after the Devonian and ended before the Pennsylvanian.

Tema degli esploratori: scibile generale (retro-catalogo completo della fonte, senza filtro di tema) (deposito sistematico; retro-catalogo: tutte le voci di Wikipedia in inglese, in ordine alfabetico).
Fonte: Wikipedia in inglese, voce «Antler orogeny» — https://en.wikipedia.org/wiki/Antler_orogeny
Wikidata Q4775375: «Mountain-building episode in North America» (dati Wikidata in CC0 1.0) — https://www.wikidata.org/wiki/Q4775375
Autori: i contributori di Wikipedia (cronologia: https://en.wikipedia.org/wiki/Antler_orogeny?action=history).
Licenza: Creative Commons Attribuzione-Condividi allo stesso modo 4.0 (CC BY-SA 4.0) — https://creativecommons.org/licenses/by-sa/4.0/. Il riuso richiede attribuzione e stessa licenza.
Estratto dell'introduzione non modificato nel contenuto; revisione 1337115038, consultata il 2026-11-09T14:40:37.946Z tramite l'API ufficiale di Wikipedia. Impronta SHA-256 dell'estratto: ec91e1701bc3e592d635d9effa3f53e573df028f223b9b9da49c0950b42c95e2