The Cretaceous Messum igneous complex, S.W. Etendeka, Namibia: Reinterpretation in terms of a downsag-cauldron subsidence model

Journal of Volcanology and Geothermal Research

Volumn 114, Issue 3-4, 2002, Pages 251-273

  Ewart, A ^a   Milner, S C ^b   Duncan, A R ^c   Bailey, M ^c  

^a UNIVERSITY OF QUEENSLAND   (Australia)

^b GEOLOGICAL SURVEY OF NAMIBIA   (Namibia)

^c UNIVERSITY OF CAPE TOWN   (South Africa)

Author keywords

Bimodal magmatism; Caldera; Cone sheets; hybridisation; Magma mingling; Resurgence

Indexed keywords

CLIMATE CHANGE; QUARTZ; VOLCANIC ROCKS;

ERUPTIONS;

VOLCANOES;

SILICON DIOXIDE;

CALDERA; CRETACEOUS; HYBRIDIZATION; IGNEOUS PROVINCE; MAGMA; SUBSIDENCE;

BASALT; CRETACEOUS; GOBOBOSEB MOUNTAINS; GRANITE; INTRUSIONS (GEOLOGY); MODEL; NAMIBIA; ROCK; UNITED KINGDOM; VOLCANO;

NAMIBIA;

EID: 0037198730     PISSN: 03770273     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0377-0273(01)00266-9     Document Type: Article

References (40)

1. Rb-Sr geochronology of three Karoo-related intrusive complexes
2. A review of silicic pyroclastic rocks of the British Tertiary Volcanic Province
3. Downsag and extension at calderas: New perspectives on collapse geometries from ice-melt, mining, and volcanic subsidence
4. Rheomorphism and soft-state deformation of tuffs induced by volcanotectonic faulting at a piecemeal caldera, English Lake District
5. Field Excursion C43: Southern Etendeka Volcanism, northwestern Namibia
6. Tertiary igneous activity
7. A review of the mineralogy and chemistry of Tertiary-Recent dacitic, latitic, rhyolitic, and related salic volcanic rocks
8. Etendeka volcanism of the Goboboseb Mountains and Messum igneous complex, Namibia. Part I: Geochemical evidence of Early Cretaceous Tristan plume melts and the role of crustal contamination in the Paraná-Etendeka CFB
9. Etendeka volcanism of the Goboboseb Mountains and messum igneous complex, Namibia. Part II: Voluminous quartz latite volcanism of the Awahab magma system
10. Rapid eruption of Skye lavas inferred from precise U-Pb and Ar-Ar dating of the Rhum and Cuillin plutonic complexes
11. Oxygen isotope geochemistry of the Mesozoic anorogenic complexes of Damaraland, northwest Namibia: Evidence for crustal contamination and its effect on silica saturation
12. The oxygen isotope geochemistry of the Karoo and Etendeka Volcanic Provinces of southern Africa
13. Petrology of the alkaline core of the Messum igneous complex, Namibia: Evidence for the progressively decreasing effect of crustal contamination
14. The Messum igneous complex in South-West Africa
15. Subsidence of ash-flow calderas: Relation to caldera size and magma chamber geometry
16. The Etendeka Igneous Province: Magma types and their stratigraphic distribution with implications for the evolution of the Paraná-Etendeka flood basalt province
17. Experimental studies of caldera collapse
18. The petrology of the Messum igneous complex, South-West Africa
19. The geochemistry of the Messum Igneous Complex, South-West Africa
20. Intrusion of basaltic magma into a crystallizing granitic magma chamber: The Cordillera del Paine pluton in southern Chile
21. Quartz latite rheoignimbrite flows of the Etendeka Formation, northwestern Namibia
22. Promotion of the Etendeka Formation to Group status: A new integrated stratigraphy
23. Trans-Atlantic correlation of eruptive sequences and individual silicic volcanic units within the Paraná-Etendeka igneous province
24. Age of Mesozoic igneous rocks in northwest Namibia, and the relationship to continental breakup
25. Tectonic influences in piecemeal caldera collapse at Glencoe volcano, Scotland
26. Tectonically controlled piecemeal caldera collapse: A case study of Glencoe volcano, Scotland
27. Evolution of the Walvis Ridge and Rio Grande Rise hotspot system - Implications for African and South American plate motions over plumes
28. South Atlantic hotspot-plume systems. I. Distributions of volcanism in time and space
29. Mantle plumes and flood-basalt stratigraphy in the Paraná, South America
30. Age of Etendeka flood volcanism and associated intrusions in southwestern Africa
31. Experimental study of caldera formation
32. The North Atlantic igneous province
33. 40Ar geochronology of the Brandberg complex, Namibia: Evidence for a major mantle contribution in metaluminous and peralkaline granites
34. K-Ar age determinations on basaltic rocks from South West Africa, and their bearing on continental drift
35. 39Ar geochronology of silicic and basic volcanic rocks on the margins of the North Atlantic
36. 39Ar geochronology in the Paraná continental flood basalt province
37. Downsag calderas, ring faults and caldera sizes
38. 'Coherent intrusion complexes' in large basaltic volcanoes - A new structural model