Jump to content

Rocas Verdes ophiolites: Difference between revisions

Add links
From Wikipedia, the free encyclopedia
Browse history interactively
← Previous edit
Content deleted Content added
VisualWikitext
No edit summary
Monkbot (talk | contribs)
Bots
3,695,952 edits
m Task 20: replace {lang-??} templates with {langx|??} ‹See Tfd› (Replaced 1);
 
(8 intermediate revisions by 6 users not shown)
Line 1: Line 1:
{{Location map+|Chile|float=right|width=200|caption=Location of selected outcrops of the Sarmiento and Tortuga complexes.|places=
⚫
The '''Rocas Verdes ophiolites''' ({{lang-es|Complejo Ofiolítico de Rocas Verdes}}) are a series of [[greenschist]]s and other rocks constituting [[ophiolite]]s in [[Magallanes Region]], southernmost Chile. The Rocas Verdes ophiolites represent the [[continental crust|continental]]-[[oceanic crust|oceanic]] crust that existed in a [[back-arc basin]] in the [[Mesozoic|Mesozoic Era]] as result of [[extensional tectonics]].<ref name=SternDeWit2013>{{cite book |last=Stern |first=Charles R.|last2=De Wit |first2=Maarten J. |date=2013 |chapter=Rocas Verdes ophiolites, southernmost South America: remnants of progressive stages of development of oceanic-type crust in a continental margin back-arc basin |chapter-url=http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.1026.5572&rep=rep1&type=pdf|editor-last=Dilek|editor-first=Y.|editor-last2=Robinson |editor-first2=P.T.|title=Ophiolites in Earth History |location= |publisher= |pages=665-683|series=Geological Society, London, Special Publications|issue=2018 |isbn= |author-link= }}</ref> This back-arc basin then evolved into the [[Magallanes Basin|Magallanes foreland basin]] in the [[Cenozoic|Cenozoic Era]].<ref name=SternDeWit2013/>
<!-- North-East-->
{{Location map~|Chile|lat=-50.651286 |long=-73.657067 |label=Sarmiento complex|position=left|mark=Green pog.svg}}
{{Location map~|Chile|lat=-55.239742 |long=-67.812356 |label=Tortuga complex|position=top|mark=Green pog.svg}}
}}
⚫
The '''Rocas Verdes ophiolites''' ({{langx|es|Complejo Ofiolítico de Rocas Verdes}}) are a series of [[greenschist]]s and other rocks constituting [[ophiolite]]s in [[Magallanes Region]], southernmost Chile. The Rocas Verdes ophiolites represent the [[continental crust|continental]]-[[oceanic crust|oceanic]] crust that existed in a [[back-arc basin]] in the [[Mesozoic|Mesozoic Era]] as result of [[extensional tectonics]].<ref name=SternDeWit2013>{{cite book |last1=Stern |first1=Charles R.|last2=De Wit |first2=Maarten J. |date=2013 |chapter=Rocas Verdes ophiolites, southernmost South America: remnants of progressive stages of development of oceanic-type crust in a continental margin back-arc basin |editor-last=Dilek|editor-first=Y.|editor-last2=Robinson |editor-first2=P.T.|title=Ophiolites in Earth History |pages=665–683|series=Geological Society, London, Special Publications|issue=2018 |citeseerx=10.1.1.1026.5572}}</ref> This back-arc basin then evolved into the [[Magallanes Basin|Magallanes foreland basin]] in the [[Cenozoic|Cenozoic Era]] within the context of the wider [[Andean orogeny]].<ref name=SternDeWit2013/>


The main Rocas Verdes ophiolites are the Sarmiento and Tortuga [[Complex (geology)|complexes]]. Volcanic rocks in both complexes belong to the [[tholeiitic magma series]]. While neither of both resent true [[oceanic crust]] Tortugas complex is more alike top these compositions.<ref>{{cite journal |last1=Stern |first1=Charles |date=1979 |title=Open and closed system igneous fractionation within two chilean ophiolites and the tectonic implication |url=https://link.springer.com/article/10.1007/BF00371545 |journal=[[Contributions to Mineralogy and Petrology]] |volume=68 |issue=3 |pages=243–258 |doi= |access-date= }}</ref>
The main Rocas Verdes ophiolites are the Sarmiento and Tortuga [[Complex (geology)|complexes]]. [[Volcanic rock]]s in both complexes belong to the [[tholeiitic magma series]]. While neither represent true [[oceanic crust]] Tortugas complex has more [[geochemistry|geochemical]] affinity to oceanic crust.<ref>{{cite journal |last1=Stern |first1=Charles |date=1979 |title=Open and closed system igneous fractionation within two chilean ophiolites and the tectonic implication |journal=[[Contributions to Mineralogy and Petrology]] |volume=68 |issue=3 |pages=243–258 |doi= 10.1007/BF00371545|bibcode=1979CoMP...68..243S |s2cid=128480031 }}</ref>


==References==
==References==
{{reflist}}
{{reflist}}



{{geology-stub}}
[[Category:Cretaceous Chile]]
[[Category:Cretaceous Chile]]
[[Category:Geology of Magallanes y la Antártica Chilena Region]]
[[Category:Geology of Magallanes Region]]
[[Category:Jurassic Chile]]
[[Category:Jurassic Chile]]
[[Category:Natural history of Tierra del Fuego]]
[[Category:Geology of Tierra del Fuego]]
[[Category:Ophiolites]]
[[Category:Ophiolites]]


{{plate-tectonics-stub}}

Latest revision as of 10:30, 22 October 2024

Rocas Verdes ophiolites is located in Chile
Sarmiento complex
Sarmiento complex
Tortuga complex
Tortuga complex
class=notpageimage|
Location of selected outcrops of the Sarmiento and Tortuga complexes.

The Rocas Verdes ophiolites (Spanish: Complejo Ofiolítico de Rocas Verdes) are a series of greenschists and other rocks constituting ophiolites in Magallanes Region, southernmost Chile. The Rocas Verdes ophiolites represent the continental-oceanic crust that existed in a back-arc basin in the Mesozoic Era as result of extensional tectonics.[1] This back-arc basin then evolved into the Magallanes foreland basin in the Cenozoic Era within the context of the wider Andean orogeny.[1]

The main Rocas Verdes ophiolites are the Sarmiento and Tortuga complexes. Volcanic rocks in both complexes belong to the tholeiitic magma series. While neither represent true oceanic crust Tortugas complex has more geochemical affinity to oceanic crust.[2]

References

[edit]
  1. ^ a b Stern, Charles R.; De Wit, Maarten J. (2013). "Rocas Verdes ophiolites, southernmost South America: remnants of progressive stages of development of oceanic-type crust in a continental margin back-arc basin". In Dilek, Y.; Robinson, P.T. (eds.). Ophiolites in Earth History. Geological Society, London, Special Publications. pp. 665–683. CiteSeerX 10.1.1.1026.5572.
  2. ^ Stern, Charles (1979). "Open and closed system igneous fractionation within two chilean ophiolites and the tectonic implication". Contributions to Mineralogy and Petrology. 68 (3): 243–258. Bibcode:1979CoMP...68..243S. doi:10.1007/BF00371545. S2CID 128480031.


Stub icon

This plate tectonics article is a stub. You can help Wikipedia by expanding it.

Retrieved from "https://en.wikipedia.org/enwiki/w/index.php?title=Rocas_Verdes_ophiolites&oldid=1252652655"