FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W1999465597> ?p ?o ?g. }

• W1999465597 endingPage "649" @default.
• W1999465597 startingPage "623" @default.
• W1999465597 abstract "The Bolivian Altiplano, in the Central Andes of South America, is part of the second largest high plateau on Earth. It is an elongate region of subdued relief, ∼1.2 × 105 km2 and ∼4 km above sea level, bounded by the Eastern Cordillera and volcanic arc (Western Cordillera). Here the crust is up to ∼75 km thick. We describe the Cenozoic geological evolution of this region, using a revised chronostratigraphy and an analysis of the crustal and lithospheric structure. Crustal shortening and magmatic addition and, locally, sedimentation are the main mechanisms of Cenozoic crustal thickening, leading to nearly 4 km of surface uplift since the Paleocene. Addition of mafic melts appears to be a first-order mechanism of Cenozoic crustal growth, contributing ∼40% of the crustal thickening beneath the volcanic arc. Removal of the basal part of the lithosphere may have caused two episodes of widespread arc and behind-arc mafic volcanism, at ∼23 Ma and 0 – ∼5 Ma, contributing to the surface uplift. The Altiplano originated as a sedimentary basin, several hundred kilometers wide, between the proto-Western Cordillera and a narrow zone of uplift (proto-Eastern Cordillera) farther east. The latter zone formed by inversion of the center of a wide lacustrine or marine Cretaceous - Paleocene basin close to sea-level at ∼45 Ma. A thickness of 2–4 km of Paleogene continental elastics accumulated in the proto-Altiplano basin. Subsequently, in the Oligocene, we estimate that this region and the western margin of the Eastern Cordillera were technically shortened ∼22% (∼65 km), resulting in ∼9 km of average crustal thickening. The Altiplano basin was rejuvenated at ∼25 Ma and subsequently flooded with up to 8 km thickness of detritus eroded from the uplifting Eastern and Western Cordilleras. Between ∼25 and 5 Ma, folding and thrusting in the western margin of the Eastern Cordillera migrated westward into the center of the Altiplano basin, essentially terminating deposition, except in local subbasins, and accommodating ∼13% (∼30 km) of shortening and an estimated ∼7 km of average crustal thickening. Subsequently, there has been strike-slip deformation and limited local thrusting (< 5 km of shortening). Geomorphological and geochronological evidence for 1.5–2 km of surface uplift of this region since the Late Miocene suggests ∼14 km of lower crustal thickening beneath an essentially rigid “lid”, and can be explained by ∼100–150 km of underthrusting of the Brazilian shield and adjacent regions beneath the eastern margin of the Central Andes. The present subdued relief in the Altiplano may be a result of ductile flow in the lower crust and sedimentation and erosion in an internal drainage basin." @default.
• W1999465597 created "2016-06-24" @default.
• W1999465597 creator A5048323426 @default.
• W1999465597 creator A5084835231 @default.
• W1999465597 date "1997-08-01" @default.
• W1999465597 modified "2023-10-16" @default.
• W1999465597 title "Origin of the high plateau in the central Andes, Bolivia, South America" @default.
• W1999465597 cites W1924108983 @default.
• W1999465597 cites W1965825856 @default.
• W1999465597 cites W1967975897 @default.
• W1999465597 cites W1968014599 @default.
• W1999465597 cites W1974070030 @default.
• W1999465597 cites W1974467019 @default.
• W1999465597 cites W1974489843 @default.
• W1999465597 cites W1974767465 @default.
• W1999465597 cites W1975280725 @default.
• W1999465597 cites W1978709674 @default.
• W1999465597 cites W1986546365 @default.
• W1999465597 cites W1987059771 @default.
• W1999465597 cites W1990605949 @default.
• W1999465597 cites W1994234363 @default.
• W1999465597 cites W1994345900 @default.
• W1999465597 cites W1995555886 @default.
• W1999465597 cites W2001265377 @default.
• W1999465597 cites W2001947002 @default.
• W1999465597 cites W2002050036 @default.
• W1999465597 cites W2006789584 @default.
• W1999465597 cites W2007557785 @default.
• W1999465597 cites W2014026400 @default.
• W1999465597 cites W2019903370 @default.
• W1999465597 cites W2025889286 @default.
• W1999465597 cites W2029021502 @default.
• W1999465597 cites W2031264437 @default.
• W1999465597 cites W2044154991 @default.
• W1999465597 cites W2054951138 @default.
• W1999465597 cites W2057329997 @default.
• W1999465597 cites W2057602786 @default.
• W1999465597 cites W2061723916 @default.
• W1999465597 cites W2064259012 @default.
• W1999465597 cites W2065384792 @default.
• W1999465597 cites W2067565113 @default.
• W1999465597 cites W2073611639 @default.
• W1999465597 cites W2079537944 @default.
• W1999465597 cites W2084199524 @default.
• W1999465597 cites W2092606614 @default.
• W1999465597 cites W2093260086 @default.
• W1999465597 cites W2094414093 @default.
• W1999465597 cites W2094670638 @default.
• W1999465597 cites W2095192407 @default.
• W1999465597 cites W2096557859 @default.
• W1999465597 cites W2103631538 @default.
• W1999465597 cites W2103796536 @default.
• W1999465597 cites W2109392791 @default.
• W1999465597 cites W2110491183 @default.
• W1999465597 cites W2132808417 @default.
• W1999465597 cites W2134407044 @default.
• W1999465597 cites W2135414934 @default.
• W1999465597 cites W2135494568 @default.
• W1999465597 cites W2136180152 @default.
• W1999465597 cites W2145803736 @default.
• W1999465597 cites W2147831291 @default.
• W1999465597 cites W2154603570 @default.
• W1999465597 cites W2168607185 @default.
• W1999465597 cites W2170778988 @default.
• W1999465597 cites W2327395928 @default.
• W1999465597 cites W4245479292 @default.
• W1999465597 doi "https://doi.org/10.1029/97tc00495" @default.
• W1999465597 hasPublicationYear "1997" @default.
• W1999465597 type Work @default.
• W1999465597 sameAs 1999465597 @default.
• W1999465597 citedByCount "217" @default.
• W1999465597 countsByYear W19994655972012 @default.
• W1999465597 countsByYear W19994655972013 @default.
• W1999465597 countsByYear W19994655972014 @default.
• W1999465597 countsByYear W19994655972015 @default.
• W1999465597 countsByYear W19994655972016 @default.
• W1999465597 countsByYear W19994655972017 @default.
• W1999465597 countsByYear W19994655972018 @default.
• W1999465597 countsByYear W19994655972019 @default.
• W1999465597 countsByYear W19994655972020 @default.
• W1999465597 countsByYear W19994655972021 @default.
• W1999465597 countsByYear W19994655972022 @default.
• W1999465597 countsByYear W19994655972023 @default.
• W1999465597 crossrefType "journal-article" @default.
• W1999465597 hasAuthorship W1999465597A5048323426 @default.
• W1999465597 hasAuthorship W1999465597A5084835231 @default.
• W1999465597 hasBestOaLocation W19994655971 @default.
• W1999465597 hasConcept C100970517 @default.
• W1999465597 hasConcept C127313418 @default.
• W1999465597 hasConcept C134306372 @default.
• W1999465597 hasConcept C151730666 @default.
• W1999465597 hasConcept C165205528 @default.
• W1999465597 hasConcept C205649164 @default.
• W1999465597 hasConcept C2780030769 @default.
• W1999465597 hasConcept C33923547 @default.
• W1999465597 hasConceptScore W1999465597C100970517 @default.
• W1999465597 hasConceptScore W1999465597C127313418 @default.
• W1999465597 hasConceptScore W1999465597C134306372 @default.

• next