Intraplate Volcanism

  title={Intraplate Volcanism},
  author={S. Homrighausen and J{\"o}rg Geldmacher and Kaj Hoernle and Tim Rooney},
  journal={Encyclopedia of Geology},
4 Citations
Discovery of large-scale buried volcanoes within the Cenozoic succession of the Prawn Platform, offshore Otway Basin, southeastern Australia
Abstract Volcanic rocks occur in different types of sedimentary basins, especially those evolving from lithospheric stretching. While volcanoes and other igneous rocks are widespread in the onshore
A review of Pangaea dispersal and Large Igneous Provinces – In search of a causative mechanism
Abstract The breakup of Pangaea was accompanied by extensive, episodic, magmatic activity. Several Large Igneous Provinces (LIPs) formed, such as the Central Atlantic Magmatic Province (CAMP) and the
A total-evidence approach resolves phylogenetic placement of ‘Cafius’ gigas, a unique recently extinct rove beetle from Lord Howe Island
A total-evidence phylogenetic analyses of morphological and molecular data using model-based and parsimony methods indicates that the montane leaf litter inhabitant H. gigas evolved neither in situ nor from a seashore Cafius-ancestor, or from an ancestor shared by two other LHI endemic congeners, Hesperus pacificus Olliff, 1887 and H. dolichoderes.
A Kárpát-Pannon térség neogén-kvarter vulkanizmusa és geodinamikai kapcsolata
A Kárpát-Pannon térség neogén-kvarter vulkáni működése szorosan kapcsolódik a térség geodinamikai fejlődéséhez. Horváth Ferenc professzor munkássága, ösztönzése nagy mértékben segített abban, hogy a


A review of large low shear velocity provinces and ultra low velocity zones
Abstract Seismic tomography reveals 2 extensive regions in the lowermost mantle, beneath Africa and the Pacific, that exhibit lower-than-average seismic wave speeds. These regions have been named the
Dynamics of rheological heterogeneities in mantle plumes
Abstract The geochemical record of Hawaiian basalts has been interpreted to reflect vertically stretched, partly filament-like heterogeneities in the Hawaiian plume, but one alternative
Geochemistry and Distribution of Recycled Domains in the Mantle Inferred From Nd and Pb Isotopes in Oceanic Hot Spots: Implications for Storage in the Large Low Shear Wave Velocity Provinces
Subduction of continental and oceanic crust is thought to give rise to geochemically distinct reservoirs in the mantle called EM (enriched mantle) and HIMU (high μ = U/Pb), respectively. However, the
Hunting for the Tristan mantle plume – An upper mantle tomography around the volcanic island of Tristan da Cunha
The active volcanic island Tristan da Cunha, located at the southwestern and youngest end of the Walvis Ridge - Tristan/Gough hotspot track, is believed to be the surface expression of a huge thermal
Sources and mobility of carbonate melts beneath cratons, with implications for deep carbon cycling, metasomatism and rift initiation
Abstract Kimberlite and carbonatite magmas that intrude cratonic lithosphere are among the deepest probes of the terrestrial carbon cycle. Their co-existence on thick continental shields is commonly
Continent-sized anomalous zones with low seismic velocity at the base of Earth's mantle
Two large zones through which seismic waves travel unusually slowly are found at the base of Earth's mantle. These zones are thermally and chemically distinct from the surrounding mantle and may be a
Broad plumes rooted at the base of the Earth's mantle beneath major hotspots
The use of a whole-mantle seismic imaging technique is described that reveals the presence of broad, quasi-vertical conduits beneath many prominent hotspots, and it is shown that the imaged conduits are robustly broader than classical thermal plume tails, suggesting that they are long-lived, and may have a thermochemical origin.
How and when plume zonation appeared during the 132 Myr evolution of the Tristan Hotspot
A model is presented that can explain the temporal evolution and origin of plume zonation for both the Tristan-Gough and Hawaiian hotspots, two end member types of zoned plumes, through processes taking place in the plume sources at the base of the lower mantle.
Isotopes, DUPAL, LLSVPs, and Anekantavada
Abstract The mantle perspective provided by radiogenic isotope geochemistry has evolved over the last 40 years. Although the idea of an upper mantle depleted in incompatible elements by extraction of