large igneous provinces
DESCRIPTION
LIP. Large Igneous Provinces. Die großen magmatischen Provinzen der Erde. LIP´s of the World. Siberian traps 250 Ma (Late Permian). Viluy traps 360 Ma (Late Devonian). Emeishan traps 258 Ma (Late Permian). Columbia River Basalt 16 Ma (Early Miocene). Deccan traps - PowerPoint PPT PresentationTRANSCRIPT
![Page 1: Large Igneous Provinces](https://reader035.vdocument.in/reader035/viewer/2022081506/56815238550346895dc07de5/html5/thumbnails/1.jpg)
Large Igneous Provinces LIP
Die großen magmatischen Provinzen der Erde
![Page 2: Large Igneous Provinces](https://reader035.vdocument.in/reader035/viewer/2022081506/56815238550346895dc07de5/html5/thumbnails/2.jpg)
![Page 3: Large Igneous Provinces](https://reader035.vdocument.in/reader035/viewer/2022081506/56815238550346895dc07de5/html5/thumbnails/3.jpg)
![Page 4: Large Igneous Provinces](https://reader035.vdocument.in/reader035/viewer/2022081506/56815238550346895dc07de5/html5/thumbnails/4.jpg)
Columbia River Basalt 16 Ma (Early Miocene)
LIP´s of the World
Continental Flood Basalts
Trap
Deccan traps65 Ma (Late Cretaceous)
Siberian traps 250 Ma (Late Permian)
Emeishan traps 258 Ma (Late Permian)
Viluy traps360 Ma (Late Devonian)
Parana and Etendeka traps, 132 Ma (Early Cretaceous)
Karoo and Ferrar traps, 184 Ma (Mid Jurassic)
Madagascar traps, ~ 90 Ma (Mid Cretaceous)
Ethiopian and Yemen traps, 30 Ma (Oligocene)
North Atlantic Tertiary Volcanic Province, 55 & 60 Ma (Paleocene)
![Page 5: Large Igneous Provinces](https://reader035.vdocument.in/reader035/viewer/2022081506/56815238550346895dc07de5/html5/thumbnails/5.jpg)
Large Igneous Provinces LIP
Ontong–Java plateau 117, 98, 93 Ma (Mid-Late Cretaceous
Ozeanische Plateaus
![Page 6: Large Igneous Provinces](https://reader035.vdocument.in/reader035/viewer/2022081506/56815238550346895dc07de5/html5/thumbnails/6.jpg)
Large Igneous Provinces LIP
![Page 7: Large Igneous Provinces](https://reader035.vdocument.in/reader035/viewer/2022081506/56815238550346895dc07de5/html5/thumbnails/7.jpg)
Crough 1983
Spuren von heißen Flecken
![Page 8: Large Igneous Provinces](https://reader035.vdocument.in/reader035/viewer/2022081506/56815238550346895dc07de5/html5/thumbnails/8.jpg)
Hot Spot Track – der Hawaii – Emperor - Seamount Kette
Hawaii Inselkette
Em
pero
r In
selk
ette
81 Ma
heuteaktiv
Karte der magnetischen Anomalien
Hawaii
Spur ist unabhängig von der Bewegung der Lithosphärenplatten – kreuzt die magnetischen Anomalien der ozeanischen Kruste
Spur wird kontinuierlich jüngerin Richtung Hawaii
![Page 9: Large Igneous Provinces](https://reader035.vdocument.in/reader035/viewer/2022081506/56815238550346895dc07de5/html5/thumbnails/9.jpg)
Fig. 1. Map showing the distribution of the Colombia River basalts (CRBs) and track of the Yellowstone hot spot.
According to Pierce and Morgan [14], activity of the CRBs started due to the arrival of gigantic plume head of the Yellowstone hot spot ca. 16 Ma ago. The plume hit the boundary between Oregon, Idaho and Nevada where rhyolite volcanism occurred due to crustal anatexsis. Much of thebasalt magmas, however, traveled to the north through 1000 km long NS rift system and drained at the boundary between Washington and Oregon States. Simplified after fig. 1 of Pierce and Morgan [14].
Columbia River Basalt 16 Ma (Early Miocene)
& Yellowstone Hot Spot
![Page 10: Large Igneous Provinces](https://reader035.vdocument.in/reader035/viewer/2022081506/56815238550346895dc07de5/html5/thumbnails/10.jpg)
![Page 11: Large Igneous Provinces](https://reader035.vdocument.in/reader035/viewer/2022081506/56815238550346895dc07de5/html5/thumbnails/11.jpg)
Scoring hotspots: the Plume and Plate paradigmsDon L. AndersonSeismological Laboratory, Caltech, Pasadena, California 91125,USAdla@gps. caltech. edu
![Page 12: Large Igneous Provinces](https://reader035.vdocument.in/reader035/viewer/2022081506/56815238550346895dc07de5/html5/thumbnails/12.jpg)
Klassisches Modell:Mantelkonvektion betrifft den gesamten Mantel
![Page 13: Large Igneous Provinces](https://reader035.vdocument.in/reader035/viewer/2022081506/56815238550346895dc07de5/html5/thumbnails/13.jpg)
Alternative: zwei unabhängige Konvektionssystemeim unteren und oberen Mantel
![Page 14: Large Igneous Provinces](https://reader035.vdocument.in/reader035/viewer/2022081506/56815238550346895dc07de5/html5/thumbnails/14.jpg)
1350 km Tiefe
p-Wellen
s-Wellen
Tomographisches Modell des Erdmantels
van der Hilst et al. 1997
![Page 15: Large Igneous Provinces](https://reader035.vdocument.in/reader035/viewer/2022081506/56815238550346895dc07de5/html5/thumbnails/15.jpg)
![Page 16: Large Igneous Provinces](https://reader035.vdocument.in/reader035/viewer/2022081506/56815238550346895dc07de5/html5/thumbnails/16.jpg)
Miner PetrolDOI 10.1007/s00710-009-0068-z
Structure, mineralogy and dynamics of the lowermost mantleReidar G. Trønnes
![Page 17: Large Igneous Provinces](https://reader035.vdocument.in/reader035/viewer/2022081506/56815238550346895dc07de5/html5/thumbnails/17.jpg)
C Faccenna & TW Becker Nature 465, 602-605 (2010) doi:10.1038/nature09064
Cartoon illustrating the architecture of the subduction zones andthe related pattern of mantle convection in the Mediterranean region.
Beispiel für Konvektionsmodell im Oberen Mantel
![Page 18: Large Igneous Provinces](https://reader035.vdocument.in/reader035/viewer/2022081506/56815238550346895dc07de5/html5/thumbnails/18.jpg)
Holden & Vogt 1977
Noch eine Alternative
![Page 19: Large Igneous Provinces](https://reader035.vdocument.in/reader035/viewer/2022081506/56815238550346895dc07de5/html5/thumbnails/19.jpg)
Holden & Vogt 1977
Ein streng mechanistischer Ansatz für Plattentektonik