Episodic Late Cretaceous to Neogene crustal thickness variation in southern Tibet

dc.contributor.authorSundell, Kurt E.
dc.contributor.authorLaskowski, Andrew K.
dc.contributor.authorHowlett, Caden
dc.contributor.authorKapp, Paul
dc.contributor.authorDucea, Mihai
dc.contributor.authorChapman, James B.
dc.contributor.authorDing, Lin
dc.date.accessioned2023-12-06T18:34:43Z
dc.date.available2023-12-06T18:34:43Z
dc.date.issued2023-10
dc.descriptioncopyright Wiley 2023en_US
dc.description.abstractRecent advancements in quantitatively estimating the thickness of Earth's crust in the geologic past provide an opportunity to test hypotheses explaining the tectonic evolution of southern Tibet. Outstanding debate on southern Tibet's Cenozoic geological evolution is complicated by poorly understood Mesozoic tectonics. We present new U-Pb geochronology and trace element chemistry of detrital zircon from modern rivers draining the Gangdese Mountains in southern Tibet. Results are similar to recently published quantitative estimates of crustal thickness derived from intermediate-composition whole rock records and show ~30 km of crustal thinning from 90 to 70 Ma followed by thickening to near-modern values from 70 to 40 Ma. These results extend evidence of Late Cretaceous north–south extension along strike to the west by ~200 km, and support a tectonic model in which an east–west striking back-arc basin formed along Eurasia's southern margin during slab rollback, prior to terminal collision of India with Eurasia.en_US
dc.identifier.citationSundell, K. E., Laskowski, A. K., Howlett, C., Kapp, P., Ducea, M., Chapman, J. B., & Ding, L. (2023). Episodic Late Cretaceous to Neogene crustal thickness variation in southern Tibet. Terra Nova, 00, 1–8. https://doi.org/10.1111/ter.12689en_US
dc.identifier.issn1365-3121
dc.identifier.urihttps://scholarworks.montana.edu/handle/1/18246
dc.language.isoen_USen_US
dc.publisherWileyen_US
dc.rightscopyright Wiley 2023en_US
dc.rights.urihttps://www.wiley.com/en-us/permissionsen_US
dc.subjectcrustal thicknessen_US
dc.subjectEu anomalyen_US
dc.subjectrare earth elementen_US
dc.subjectTibeten_US
dc.subjecttrace elementen_US
dc.subjectzirconen_US
dc.titleEpisodic Late Cretaceous to Neogene crustal thickness variation in southern Tibeten_US
dc.typeArticleen_US
mus.citation.extentfirstpage1en_US
mus.citation.extentlastpage8en_US
mus.citation.journaltitleTerra Novaen_US
mus.data.thumbpage5en_US
mus.identifier.doi10.1111/ter.12689en_US
mus.relation.collegeCollege of Letters & Scienceen_US
mus.relation.departmentEarth Sciences.en_US
mus.relation.universityMontana State University - Bozemanen_US

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