Matches in SemOpenAlex for { <https://semopenalex.org/work/W2894569268> ?p ?o ?g. }
- W2894569268 endingPage "247" @default.
- W2894569268 startingPage "219" @default.
- W2894569268 abstract "Two Early Paleozoic orogenic cycles in the Gondwana margin of NW Argentina were driven by subduction, and interrupted by collision of continental ribbons of Laurentian affinity. Subduction started at the passive margin of Gondwana, possibly in response to the end of amalgamation of the supercontinent. The passive margin was underlain by a hyper-extended continent-ocean transition, and low-angle subduction gave rise to a wide and hot fore-arc region during the Pampean orogenic cycle. The arrival of the first continent ribbon ended the Pampean cycle, steepened the subduction, further heating the fore-arc and restarting arc magmatism, after a magmatic lull, 250–300 km trenchwards, initiating the Famatinian orogenic cycle. This cycle started with a 30 Ma-long period of extension and marine sedimentation, followed by the arrival of the second continent ribbon and inversion the back-arc, initiating a ~20 Ma-long shortening event culminating with the shutting down of the arc. This event gave rise to a 300 km-wide, low-topography, hot orogeny. Thus, the many peculiarities of the two Paleozoic orogens of NW Argentina result from a subduction history that efficiently transferred heat to a 300–400 km-wide belt of turbidite-dominated sediments, that was first part of the Pampean fore-arc and then part of the Famatinian retroarc, developed at the extended continental margin of Gondwana. The two orogenies with continued high heat flux lasted ~110 Ma, giving rise to two calc-alkaline arcs separated by a 300 km belt of high-T – low-P migmatites and peraluminous granites formed by anatexis of sediments deposited on the passive margin as well as those deposited in the wide Pampean fore-arc. These turbidite-dominated sequences were metamorphosed and melted to form a continental crystalline basement and accreted to the cratonic margin, adding 500 km of crystalline rocks to the margin of Gondwana, at the same time that a similar process was happening in eastern Australia along the same continental margin. Interestingly this wide accretionary orogen has now become the region where the Andean system developed a wide orogeny above flat-slab subduction." @default.
- W2894569268 created "2018-10-12" @default.
- W2894569268 creator A5016346737 @default.
- W2894569268 creator A5052520215 @default.
- W2894569268 creator A5059046872 @default.
- W2894569268 creator A5077918693 @default.
- W2894569268 creator A5085821296 @default.
- W2894569268 date "2018-12-01" @default.
- W2894569268 modified "2023-10-17" @default.
- W2894569268 title "Early Paleozoic accretionary orogenies in NW Argentina: Growth of West Gondwana" @default.
- W2894569268 cites W131051797 @default.
- W2894569268 cites W1485063459 @default.
- W2894569268 cites W1535639985 @default.
- W2894569268 cites W1763147232 @default.
- W2894569268 cites W1883129337 @default.
- W2894569268 cites W1931777473 @default.
- W2894569268 cites W1938563665 @default.
- W2894569268 cites W1962549039 @default.
- W2894569268 cites W1965062352 @default.
- W2894569268 cites W1968438005 @default.
- W2894569268 cites W1968534064 @default.
- W2894569268 cites W1969844146 @default.
- W2894569268 cites W1969978288 @default.
- W2894569268 cites W1971027245 @default.
- W2894569268 cites W1972031025 @default.
- W2894569268 cites W1972563326 @default.
- W2894569268 cites W1973673935 @default.
- W2894569268 cites W1977721369 @default.
- W2894569268 cites W1980025974 @default.
- W2894569268 cites W1981788923 @default.
- W2894569268 cites W1982592339 @default.
- W2894569268 cites W1983443586 @default.
- W2894569268 cites W1985639225 @default.
- W2894569268 cites W1986642807 @default.
- W2894569268 cites W1987112790 @default.
- W2894569268 cites W1989332107 @default.
- W2894569268 cites W1989607362 @default.
- W2894569268 cites W1990793669 @default.
- W2894569268 cites W1993963668 @default.
- W2894569268 cites W1994721399 @default.
- W2894569268 cites W1996895454 @default.
- W2894569268 cites W1997127647 @default.
- W2894569268 cites W1997698796 @default.
- W2894569268 cites W1997973924 @default.
- W2894569268 cites W2000880422 @default.
- W2894569268 cites W2001732603 @default.
- W2894569268 cites W2002443033 @default.
- W2894569268 cites W2004139859 @default.
- W2894569268 cites W2004684606 @default.
- W2894569268 cites W2004934899 @default.
- W2894569268 cites W2005415870 @default.
- W2894569268 cites W2007439401 @default.
- W2894569268 cites W2008553242 @default.
- W2894569268 cites W2008929168 @default.
- W2894569268 cites W2009272091 @default.
- W2894569268 cites W2009466384 @default.
- W2894569268 cites W2009555277 @default.
- W2894569268 cites W2011208532 @default.
- W2894569268 cites W2011275795 @default.
- W2894569268 cites W2011305958 @default.
- W2894569268 cites W2011820810 @default.
- W2894569268 cites W2012492236 @default.
- W2894569268 cites W2012849453 @default.
- W2894569268 cites W2013066991 @default.
- W2894569268 cites W2016655656 @default.
- W2894569268 cites W2017227039 @default.
- W2894569268 cites W2017846378 @default.
- W2894569268 cites W2017866931 @default.
- W2894569268 cites W2019947550 @default.
- W2894569268 cites W2020137865 @default.
- W2894569268 cites W2020158148 @default.
- W2894569268 cites W2021603901 @default.
- W2894569268 cites W2022770449 @default.
- W2894569268 cites W2023538324 @default.
- W2894569268 cites W2024378351 @default.
- W2894569268 cites W2026271081 @default.
- W2894569268 cites W2027217234 @default.
- W2894569268 cites W2028380730 @default.
- W2894569268 cites W2029586019 @default.
- W2894569268 cites W2033859764 @default.
- W2894569268 cites W2034043111 @default.
- W2894569268 cites W2034840775 @default.
- W2894569268 cites W2035265798 @default.
- W2894569268 cites W2037838346 @default.
- W2894569268 cites W2040926668 @default.
- W2894569268 cites W2042164328 @default.
- W2894569268 cites W2045537229 @default.
- W2894569268 cites W2047850999 @default.
- W2894569268 cites W2048230691 @default.
- W2894569268 cites W2048460021 @default.
- W2894569268 cites W2048706188 @default.
- W2894569268 cites W2049671375 @default.
- W2894569268 cites W2053510616 @default.
- W2894569268 cites W2054389131 @default.
- W2894569268 cites W2054541420 @default.
- W2894569268 cites W2054562150 @default.
- W2894569268 cites W2055593491 @default.
- W2894569268 cites W2057695611 @default.