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http://dx.doi.org/10.18419/opus-3804
Autor(en): | Winsemann, Jutta Seyfried, Hartmut |
Titel: | Response of deep-water fore-arc systems to sea-level changes, tectonic activity and volcaniclastic input in Central America |
Erscheinungsdatum: | 1991 |
Dokumentart: | Buchbeitrag |
Erschienen in: | Macdonald, David I. M (Hrsg.): Sedimentation, tectonics and eustasy : Sea-level changes at active plate margins. Oxford : Blackwell Scientific Publ., 1991 (Special publication of the International Association of Sedimentologists, 12), S. 273-292 |
URI: | http://nbn-resolving.de/urn:nbn:de:bsz:93-opus-44913 http://elib.uni-stuttgart.de/handle/11682/3821 http://dx.doi.org/10.18419/opus-3804 |
Zusammenfassung: | The incipient island-arc system of southern Central America (Cretaceous - early Oligocene) is characterized by thick turbidite systems, which mainly filled inner fore-arc troughs. Outcrop data show four second-order depositional sequences in the deep-water sediments. The formation of these depositional sequences is strongly related to the morphotectonic evolution of the island-arc system. Each depositional sequence reflects the complex interaction between global sea-level fluctuations, sediment supply and tectonic activity. Strong marginal uplift and high volcaniclastic sediment supply during early to late Paleocene and late Eocene times caused the formation of coarse-grained channel-lobe systems. During late Paleocene and mid-Eocene times, fine-grained, thin-bedded turbidite systems were deposited, owing to regional subsidence and a decrease in volcanic supply. Uplift and subsidence of sediment-source areas acted as major controls on deposition of basinal cycles. |
Enthalten in den Sammlungen: | 06 Fakultät Luft- und Raumfahrttechnik und Geodäsie |
Dateien zu dieser Ressource:
Datei | Beschreibung | Größe | Format | |
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sey4.pdf | 1,02 MB | Adobe PDF | Öffnen/Anzeigen |
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