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Berrugate Arc

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Journal Article
Journal: GSA Bulletin
Published: 20 March 2019
GSA Bulletin (2019) 131 (9-10): 1555-1580.
... the Berrugate Arc—as revealed by new biostratigraphic and geochemical data. (2) The Nicoya Complex s. str. is a composite plateau remnant containing rocks of Bajocian to earliest Campanian age. Its accretion occurred during the middle Campanian (ca. 79–76 Ma) and shut down the Berrugate Arc. In contrast...
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Series: Geological Society, London, Special Publications
Published: 01 January 2009
DOI: 10.1144/SP328.1
EISBN: 9781862395763
... ) for the Berrugate Formation volcaniclastic rocks is correct, then it is possible that the sediments were sourced from unidentified arc rocks possibly now buried beneath the Cenozoic arc. In either case, a reasonable age for subduction initiation might be 80–88 Ma, considering that a slab needs several million years...
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Image
Three-dimensional palinspastic reconstructions of the active margin of nort...
Published: 20 March 2019
complexes; RIO—Rio Cala Arc; SCT—South Chortis Terrane; SE—Santa Elena accreted arc; SNR—South Nicaraguan Rise. (B) Coniacian (87 Ma). The active margin experiences renewed volcanic arc activity (Berrugate Arc) which possibly encroaches on the accreted Manzanillo Terrane a few million years after its