globalchange  > 影响、适应和脆弱性
DOI: 10.1007/s00531-014-1090-x
Scopus记录号: 2-s2.0-84925536240
论文题名:
Ordovician orogeny in the Alps: a reappraisal
作者: Zurbriggen R.
刊名: International Journal of Earth Sciences
ISSN: 14373254
出版年: 2014
卷: 104, 期:2
起始页码: 335
结束页码: 350
语种: 英语
英文关键词: Alaskan-type subduction–accretion ; Ceneri gneiss ; Cratonization ; Lachlan fold belt ; Ordovician forearc magmatism ; Strona-Ceneri zone
英文摘要: An important part of the pre-Mesozoic basement of the Alps is the product of orogenic processes occurred in Ordovician times. Most of the geological constrains for this reconstruction have been obtained by the study of the Strona-Ceneri zone in the Southern Alps, where Alpine overprint was weak. The erosion of late Pan-African belts delivered large amounts of greywackes and pelites into subduction zones along Gondwana. The sediments were subducted and accreted to form wide complexes. As a result of the large sediment input, subduction retreated and the mantle-derived magmas intruded the base of the fertile “mud pile.” This initiated substantial anatexis to produce peraluminous magmas, which intruded and extruded syntectonically. Thereby, the predominantly steeply structured subduction–accretion complex provided ideal pathways for the uprising magmas, and down-thrusting host rocks to result in an isostatically stable crust. The SE Australian Lachlan fold belt is interpreted as an upper crustal analog of the Strona-Ceneri zone. Based on the combination of their geology, a crustal profile through an Alaskan type of orogen is drawn. © 2014, Springer-Verlag Berlin Heidelberg.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84925536240&doi=10.1007%2fs00531-014-1090-x&partnerID=40&md5=07dfb82ae440389f5a86f596a6c28580
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/70386
Appears in Collections:影响、适应和脆弱性
气候减缓与适应

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作者单位: Feldmatt 10, Neuenkirch, Switzerland

Recommended Citation:
Zurbriggen R.. Ordovician orogeny in the Alps: a reappraisal[J]. International Journal of Earth Sciences,2014-01-01,104(2)
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